TELOS CORP
10-K, 1999-04-02
COMPUTER INTEGRATED SYSTEMS DESIGN
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                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                  FORM 10-K

        [X]          Annual Report Pursuant to Section 13 or 15(d)
                       The Securities Exchange Act of 1934

                     For the fiscal year ended December 31, 1998


             [  ]Transition Report Pursuant to Section 13 or 15(d)
                         The Securities Exchange Act of 1934

                             Commission file number: 1-8443

                                    TELOS CORPORATION
                     (Exact name of registrant as specified in its charter)

                    Maryland                       52-0880974
           (State of Incorporation) (I.R.S. Employer Identification No.)

       19886 Ashburn Road, Ashburn, Virginia           20147
       (Address of principal executive offices)      (Zip Code)

                              Registrant's Telephone Number,
                           including area code: (703) 724-3800

Securities registered pursuant to Section 12(b)of the Act:   NONE

     Securities registered pursuant to Section 12(g) of the Act:
12% Cumulative Exchangeable Redeemable Preferred Stock, par value $.01 per share

Indicate  by check mark  whether the  registrant  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days.
                                             YES X       NO _____

Indicate by check mark if disclosure of delinquent  filers pursuant to Item 405
of Regulation S-K  is not contained  herein, and  will not  be contained, to the
best of  registrant's  knowledge in definitive  proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

No public market exists for the registrant's Common Stock.

     As of March 28,  1999,  the  registrant  had  21,238,980  shares of Class A
Common Stock,  no par value;  4,037,628  shares of Class B Common Stock,  no par
value; and 3,185,586 shares of 12% Cumulative  Exchangeable Redeemable Preferred
Stock, par value $.01 per share, outstanding.

Incorporation by Reference:  None
Number of pages in this report (excluding exhibits): 57


<PAGE>


                                       PART 1

Item 1.       Business

History and Introduction

     Founded in 1968,  Telos  Corporation  ("Telos" or the  "Company")  delivers
enterprise  integration  solutions and services to customers in the U.S. federal
government and industry.  Telos'  product and service  offerings span the entire
systems life cycle, including network and systems design,  software development,
systems  integration,  hardware  and software  maintenance,  and  solutions  for
emerging  needs  for  enterprise   network   infrastructure   management,   data
integration,  and information security.  The Company headquarters is in Ashburn,
Virginia,  part of Northern Virginia's growing Netplex region of high technology
companies. There are approximately 60 other offices throughout the United States
and around the world.

     In today's dynamic business  environment,  timely and accurate  information
flow is critical for success.  Telos'  specialized  approach to this information
challenge is based on leveraging  customers' IT infrastructure,  delivering user
centric  information,  and  enabling  customers  to  achieve  a fast  return  on
investment.  Many customers are turning to the virtual enterprise as a model for
improving  business  performance  through enhanced  communications  and business
processes.  The virtual  enterprise is a demand driven partnership of customers,
employees,  partners and suppliers to deliver  solutions.  Telos'  solutions are
aimed at overcoming the critical barriers that face the virtual enterprise:  (1)
the difficulty in accessing  disparate data without extensive  programming,  (2)
the  inability  to quickly  integrate  data to ensure  customer  responsiveness,
manufacturing and distribution  efficiency and overall competitive strength, (3)
the problem of effectively distributing information quickly and securely and (4)
the  challenge  of  making  the  organizational  and  technological   complexity
invisible to end users.

     Over each of the past three years,  Telos has made significant  investments
in  the  development  of  software  and  service  solutions  to  facilitate  the
transition  of its  business  toward  a  larger  mix  of  fixed  price  commerce
solutions.  As part of this strategy,  the Company has  discontinued or divested
itself of those elements of its  traditional  business which were not consistent
with this  strategy.  In December  1996,  Telos sold Telos  Consulting  Services
("TCS"),  one of its contract labor  divisions,  for $31.6 million.  In February
1998,  Telos sold Telos  Information  Systems  ("TIS"),  another  contract labor
division, for $14.7 million.

Reportable Operating Segments

     During 1998,  the Company  provided its business  solutions  through  three
operating  segments: Systems and Support Services,  its Products Group,  and its
Enterworks subsidiary.

Systems and Support Services

      The  Company's  Systems  and  Support  Services  Group  provides  software
development and support services for software and hardware including  technology
insertion, system redesign, software re-engineering,  Help Desk, and third party
maintenance. Key customers of this segment include: The U.S. Army at Ft. Sill in
Lawton, Oklahoma; the U.S. Army at Ft. Monmouth in Red Bank, New Jersey; and the
U.S.  Army's  Redstone  Arsenal in  Huntsville,  Alabama.  Telos is the  largest
provider of software engineering services to the U.S. Army,  maintaining over 50
million  lines of software  code for fire  support  systems.  In  addition,  the
Company has supported  seventy-nine  tactical land and satellite  communications
systems for the Communications-Electronics  Command's Research, Development, and
Engineering  Center. The Company's largest hardware services contract is for the
Redstone  Arsenal  where the Telos Call  Center  responds  to support the Army's
Aviation and Missile Command.  In addition to these  traditional Telos customers
and  services,  the Company has  information  assurance,  data  integration  and
enterprise  management  practices  which generate higher margins and represent a
growing component of this segment.


<PAGE>


     For 1998, the Systems and Support Services Group generated revenue of $98.3
million, or 47.5%, of the Company's  consolidated  revenue. Both the TIS and TCS
divisions  were part of the Systems and  Support  Services  Group prior to their
respective sales in 1998 and 1996, respectively.

Products Group

     The  Products  Group  delivers   product-based   solutions  for  networking
environments.  This group sells  commercial  products  from most major  original
equipment  manufacturers.  The  Company is capable of staging,  installing,  and
deploying large network infrastructures with little disruption to the customer's
ongoing operations.

     This operating segment also holds the largest network integration  contract
ever  awarded by the U.S.  federal  government.  The Small  Multi-user  Computer
("SMC-II") contract has a three-year term that commenced with award in September
1995,  and was extended  through April 1999.  The Products Group was awarded the
follow-on to the SMC II Contract,  Infrastructure Solutions 1, in February 1999.
For 1998, the Products Group had revenues of $101.7  million,  or 49.1%,  of the
Company's consolidated revenues.

Enterworks, Inc.

     Enterworks,  Inc. ("Enterworks") develops,  markets,  licenses and supports
Web-enabled  software  products that integrate data,  applications  and business
processes  throughout an enterprise.  The Company's  primary  product is Virtual
DB(TM),  which  delivers  single,  integrated  views  of data  across  multiple,
disparate databases and platforms.  These real-time views can easily be tailored
to a company's  business model, and the cleansed,  integrated data can be stored
in a data warehouse or forwarded to an enterprise software  application.  At the
end of 1998, the Company  released  Enterworks(TM)  Process  Manager ("EPM") for
Deployment, an innovative solution for reducing the cost, time and complexity of
implementing  enterprise  software packages.  The technology  underlying EPM for
Deployment  uses  intelligent  agents that interact with existing  databases and
business  applications to automate data exchange and coordinate the execution of
tasks across any system using proven "best practices" models.

     Enterworks'  advanced solutions are targeted at companies with complex data
environments  and a strong need to build  competitive  strengths  by  increasing
their speed, agility, and business  intelligence.  The Company focuses primarily
in government  markets,  manufacturing,  and  healthcare,  offering  specialized
consulting,  training and support  services as part of a total  solution for its
customers.

     For  1998,  Enterworks  had  revenues  of $7.1  million,  or  3.4%,  of the
Company's consolidated revenues.

Revenue by Major Market and Significant Customers

Revenue by major market for the Company are as follows:
<TABLE>
<CAPTION>

                                                     Percentage of total consolidated revenue for 
                                                   ------------------------------------------------- 
                                                   1998                  1997                 1996(1)
                                                   ----                  ----                 -------
<S>                                              <C>                    <C>                   <C>    
Federal government                                92.9%                  94.6%                 84.8%
Commercial                                         5.1                    3.9                  13.6
State and local governments                        2.0                    1.5                   1.6
                                                  ----                   ----                  ----
         Total                                   100.0%                 100.0%                100.0%
                                                 ======                 =====                 =====

<FN>
(1)  1996 major market revenue percentages exclude TCS revenues.  TCS was sold in 1996.
</FN>
</TABLE>


<PAGE>


     Total  consolidated  revenue  derived from the federal  government for 1998
includes 68.9% of revenue from  contracts with the Department of Defense,  21.7%
of revenue from contracts with other Departments of the federal government,  and
2.3% of revenue from subcontracts with U.S. government prime contractors.

Competition

     The  segments  of the  information  services  industry in which the Company
operates  are  highly  fragmented  with no  single  company  or  small  group of
companies in a dominant position. Some of the Company's competitors also operate
in international markets,  along with other entities,  which operate exclusively
or primarily  outside the United  States.  Some of the large  competitors  offer
services in a number of markets  which  overlap  many of the same areas in which
the Company offers services,  while certain companies are focused on only one or
a few of these  markets.  The firms which  compete with the Company are computer
services firms, applications software companies and accounting firms, as well as
the computer  service arms of computer  manufacturing  companies and defense and
aerospace firms.  Thousands of firms fall into these categories.  As the Company
becomes more focused on network-enabled  enterprise  computing,  the competition
shifts to include  companies that perform  enterprise  integration for large and
complex information technology environments. In addition, the internal staffs of
client   organizations,   non-profit   federal  contract  research  centers  and
universities are competitors of the Company.

     The Company believes that the principal competitive factors in the segments
of the information and network  technology  market in which it competes  include
project management  capability,  technical  expertise,  reputation for providing
quality service,  and price.  The Company  believes its technical  competence in
computer  engineering,   systems  software,   engineering,  system  and  network
integration, and hardware maintenance will enable it to compete favorably in the
information and network technology market.

Employees

     The Company  employed  1,155 persons as of December 31, 1998.  The services
the  Company  provides  require  proficiency  in many  fields,  such as computer
science, mathematics, physics, engineering,  operations research, economics, and
business administration.

     Of the total Company  personnel,  807 provide Systems and Support Services,
105 are employed by Enterworks  and 105 provide  System  Integration  (Products)
Services.  An additional 138 employees  provide  corporate and business services
functions.

Backlog

     Many of the Company's  contracts with the U.S. Government are funded by the
procuring  government  agency  from  year to  year,  primarily  based  upon  the
government's fiscal  requirements.  This results in two different  categories of
backlog:  funded and unfunded.  Total backlog consists of the aggregate contract
revenues  remaining to be earned by the Company at a given time over the life of
its contracts,  whether or not funded.  Funded backlog consists of the aggregate
contract  revenues  remaining  to be earned by the Company at a given time,  but
only to the extent, in the case of government  contracts,  funded by a procuring
government  agency  and  allotted  to the  contracts.  Unfunded  backlog  is the
difference  between  total  backlog  and funded  backlog.  Included  in unfunded
backlog are  revenues  which may be earned only if customers  exercise  delivery
orders and/or renewal options to continue existing contracts.

<PAGE>


     A number of contracts undertaken by the Company extend beyond one year, and
accordingly, portions of contracts are carried forward from one year to the next
as  part  of the  backlog.  Because  many  factors  affect  the  scheduling  and
continuation  of projects,  no assurance can be given as to when revenue will be
realized on projects included in the Company's backlog.

     At December 31, 1998 and 1997,  the Company had total backlog from existing
contracts of approximately $923.3 million and $1.0 billion,  respectively.  This
is the  maximum  value  of  additional  future  orders  for  systems,  products,
maintenance  and  other  support  services   presently   allowable  under  those
contracts,  including renewal options available on the contracts if exercised by
the client, over periods extending up to seven years. Included in the backlog at
December 31, 1998 is $786 million from the Company's SMC-II  contract,  which is
due to expire in April 1999 and is therefore  unlikely to be converted to orders
and  revenue  of this  magnitude  in 1999.  The  Company  has been  awarded  the
follow-on contract to SMC II,  Infrastructure  Solutions-1 ("IS1"), in the first
quarter of 1999.  This contract has a five year term with an award amount not to
exceed $380 million. The backlog totals at December 31, 1998 do not include this
award.  Approximately  $56  million  and $104  million  of the total was  funded
backlog at December 31, 1998 and 1997, respectively.

     While backlog remains a useful measurement  consideration,  in recent years
the Company, as well as other federal  contractors,  experienced a change in the
manner in which the federal government  procures  equipment and services.  These
procurement   changes  include  the  growth  in  the  use  of  General  Services
Administration  ("GSA") schedules which allow agencies of the federal government
to purchase  significant  amounts of equipment and services.  The use of the GSA
schedules results in a significantly  shorter and much more flexible procurement
cycle,  as well as increased  competition as many companies hold such schedules.
Along with the GSA schedules,  the federal government is awarding a large number
of omnibus contracts with multiple awardees.  These contracts  generally require
extensive marketing efforts by the awardees to procure business.  The use of GSA
schedules  and  omnibus  contracts,  while  generally  not  providing  immediate
backlog,  provide  areas of  potential  growth  that the  Company  continues  to
aggressively pursue.

Overview of 1998

     During 1998,  Telos  continued to make  investments in order to execute its
strategy  of  transitioning  its  business  toward a larger  mix of fixed  price
commerce solutions.

     These  investments  included  the  continued   development  of  Enterworks'
enterprise   application   integration  software  solutions,   Virtual  Database
("Virtual  DB") and  Enterworks  Process  Manager  ("EPM").  Virtual  DB 3.0 was
released in March 1999, and EPM 1.0 was released in December  1998.  Enterworks'
revenue grew to $7.1 million in 1998, more than double 1997 revenue. The Company
expects  Enterworks  revenue to continue to increase in 1999 based on the status
of its  products  and its  continuing  investment  in its  sales  and  marketing
infrastructure to support those products.  However,  the Company does not expect
the Enterworks  business to be profitable until after 1999,  consistent with the
experience of comparable software companies at this stage of development.

     The  Company's  1998  investments  were also  focused on its higher  margin
information  assurance,  data  integration,   advanced  messaging  and  wireless
networking practices.  Revenue for these practices approximated $7.0 million for
1998,  which also  represents a more than doubling of 1997 revenue.  In December
1998, Telos announced a strategic  partnership with Tivoli Systems, a subsidiary
of IBM, whereby Telos plans to provide  professional  services to support Tivoli
Products.  This  enterprise  management  practice will be an additional  area of
emphasis for Telos in 1999 and beyond.  As with Enterworks,  the Company expects
total revenue for these practices will continue to grow in 1999 based in part on
its continuing investments in sales and marketing to support these practices.
<PAGE>

     The  Company's  1998  activities  also  focused on reducing or  eliminating
certain of its least profitable contracts. These reductions or eliminations were
principally  within the Products  Group,  although there were also some targeted
reductions  in the Systems  and  Support  Services  Group.  With these  business
reductions came decreases in related corporate  infrastructure costs,  including
sales, general and administrative ("SG&A") expenses. However, on a total company
basis, these cost reductions were more than offset by increases in SG&A costs to
support Enterworks and the other higher margin businesses noted above.

     In February 1998, Telos sold substantially all of the net assets of its TIS
division for $14.7 million in cash. In  connection  with this sale,  the Company
recorded a gain of $5.7 million in its consolidated  statement of operations for
1998.

     In May  1998,  the  Company  entered  into  an  agreement  with  one of its
shareholders,  Union de Banques Suisses (Luxembourg) S.A. ("UBS"), to retire all
of UBS's equity holdings in the Company.  These equity holdings  included all of
the 7,500 shares of the Company's Class B Preferred  Stock,  1,837,773 shares of
the  Company's  Class A Common Stock,  and  1,312,695 of the  Company's  Class A
Common Stock  warrants.  The $5.9 million  excess of the carrying  amount of the
Class B Redeemable  Preferred Stock over the redemption price was recorded as an
increase  in capital in excess of par;  there was no impact on income  from this
transaction.

     In  November  1998,  the  Company  retired  410,000  shares  of the  Public
Preferred Stock held by certain shareholders.  The Company repurchased the stock
at $4.00 per share. The carrying value of these shares was determined to be $3.8
million,  and the $2.2 million excess of the carrying  amount of these shares of
Public Preferred Stock over the redemption price of $1.6 million was recorded as
an increase in capital in excess of par; there was no impact on income from this
transaction.

Item 2.  Properties

     The Company leases  191,700  square feet of space in Ashburn,  Virginia for
its corporate  headquarters,  integration  facility,  and primary service depot.
This lease  expires in March 2016,  with a ten year  extension  available at the
Company's option.  This facility  supports all three of the Company's  operating
segments.

     The  Company  leases  additional  space  for  regional  field  engineering,
contract  work sites,  training,  and sales  offices in 56  separate  facilities
located in 19 states and Europe under  various  leases,  which expire on various
dates through  February  2006. At December 31, 1998,  the Company also owned two
buildings in Amery,  Wisconsin.  One of these  buildings was sold in early 1999.
These facilities  principally support the Company's Systems and Support Services
operating segment.

Item 3.  Legal Proceedings

     The Company is a party to various  lawsuits  arising in the ordinary course
of  business.  In the opinion of  management,  while the  results of  litigation
cannot be predicted with  certainty,  the final outcome of such matters will not
have a material adverse effect on the Company's consolidated financial position,
results of operations or of cash flows.

Item 4.  Submission of Matters to a Vote of Security Holders

     During the fourth  quarter of 1998, no matters were  submitted to a vote of
security holders.

<PAGE>
                                        PART II

Item 5.   Market for the Registrant's  Common Equity and Related  Stockholder
          Matters

     No public market exists for the Company's  Class A or Class B Common Stock.
As of March 1, 1999, there were 85 holders of the Company's Class A Common Stock
and 3 holders of the Company's Class B Common Stock.

Item 6.   Selected Financial Data

     The  following   should  be  read  in  connection  with  the   accompanying
information presented in Item 7 and Item 8 of this document.
<TABLE>
<CAPTION>

                                                                        OPERATING RESULTS

                                                                       Year Ended December 31,                          
                                            --------------------------------------------------------------------

                                            1998              1997            1996           1995         1994
                                            --------------------------------------------------------------------
                                                                      (amounts in thousands)
<S>                                        <C>             <C>             <C>            <C>           <C>    
Sales (5)                                  $207,086        $253,787        $188,895       $175,759      $150,676
(Loss) income  from
  continuing operations                      (9,171)          1,412          (9,816)           592       (11,838)
Discontinued Operations: (1)
   Income (loss) from
   discontinued operations                       --              --             500            423          (583)
   Gain on sale of
   Consulting Services                           --              --          11,524             --            --
(Loss) income  before
   extraordinary items                       (9,171)          1,412           2,208          1,015       (12,421)
Extraordinary items                              --              --              --             --          (196)

Net (loss) income                            (9,171)          1,412           2,208          1,015       (12,617)
</TABLE>
<TABLE>
<CAPTION>


                                                                    FINANCIAL CONDITION

                                                                     As of December 31,                              
                                            -------------------------------------------------------------------

                                              1998           1997            1996           1995           1994
                                            -------------------------------------------------------------------

                                                                (amounts in thousands)
<S>                                        <C>             <C>             <C>             <C>           <C>    
Total assets(5)                            $ 95,251        $109,718        $110,064        $94,492       $86,872
Long-term debt (2)                           54,651          56,875          32,857         47,316        40,414
Capital lease obligations,
   long-term (3)                             11,710          12,085          12,537             --            --
Senior redeemable
   preferred stock (4)                        5,631           5,207           4,828          4,494         4,192

Class B redeemable
   preferred stock (4)                           --          12,035          11,087         10,252         9,497
Redeemable preferred
   Stock (4)                                 31,729          29,951          24,230         18,647        14,263
<FN>
(1)   See Note 3 to the Consolidated Financial Statements in Item 8 regarding
      the sale of TCS.
(2)   See Note 5 to the  Consolidated  Financial  Statements in Item 8 regarding
      long-term  debt   obligations  of  the  Company.   Total   long-term  debt
      obligations  include  amounts  due under the Senior  Credit  Facility  and
      subordinated notes.
(3)   See Note 9 to the Consolidated Financial Statements in Item 8 regarding
      the capital lease obligations of the Company.
(4)   See Note 6 to the Consolidated Financial Statements in Item 8 regarding
      redeemable preferred stock of the Company.
(5)   See Note 2 to the Consolidated Financial Statements in Item 8 regarding
      the sale of TIS.
 </FN>
</TABLE>


<PAGE>

Item 7.  Management's  Discussion  and  Analysis  of   Financial  Condition  and
         Results of Operations

General

     Over the last three years, the Company has made significant  investments in
the development of software and hardware products, operational infrastructure to
support contracts awarded to the Company, and sales and marketing. The Company's
investments  in new  software  products  provide  the  Company  with an expanded
product line that, the Company believes, offers its customers unique value added
solutions for their computing and information  gathering analysis problems.  The
investment in software products is primarily  through  Enterworks and is focused
on the enterprise  application  integration market, through data integration and
information  processing  products.  Additionally,  the Company has established a
comprehensive  offering of products  and  services  on its GSA  schedule.  These
investments  have  enabled the Company to win most of its  significant  contract
rebids, and continue to provide significant new business opportunities.

     During   1998,   the   Company   experienced   decreases   in  revenue  and
profitability.  Revenue decreased $46.7 million,  or 18.4%, as compared to 1997.
Approximately  $39.5 million of this decrease was attributable to the expiration
of two  large  contracts  in  1997,  which  are  discussed  further  below,  and
approximately  $20.7  million  of the  decrease  was due to the  sale of the TIS
division in February  1998.  The operating  loss for 1998 was $7.3  million,  as
compared to operating  income of $7.4 million in 1997.  Operating  profitability
declined  principally  as a result of the decreases in revenue and the Company's
continued  investment  in  its  majority-owned  subsidiary,   Enterworks,   Inc.
Exclusive of Enterworks,  the Company's  earnings  before interest and taxes for
1998 was $4.2 million. Profitability was also impacted by unfavorable changes in
the  product  mix of the  Products  Group and the under  absorption  of  certain
infrastructure  costs.  These operating  losses were partially  offset by a $5.7
million gain on the sale of the TIS division in February 1998. 

     During 1997, the Company's revenue and profitability  increased as compared
to 1996. Revenue increased $64.9 million, or 34.4%, primarily due to three large
projects awarded in 1997 which are discussed further below. Operating income for
1997 was $7.4 million, as compared to an operating loss of $9.4 million in 1996.
Operating  profitability  improved  principally  as a result of the increases in
revenue,  as well as cost cutting measures  initiated in 1996 and continued into
1997, which included staff reductions and branch consolidation.

     The  year  ended  December  31,  1996  was  difficult  from an  operational
perspective  due to the federal  government  budget  impasse  early in the year.
However, during 1996 the Company continued to invest in its contract and support
services  infrastructure  to  accommodate a number of contracts  awarded in late
1995. The Company also moved to a larger  headquarters  and systems  integration
facility  in  1996,  which  resulted  in  increased  costs  associated  with the
relocation.

Revenue by Contract Type

     Approximately 95% of the Company's total revenues in 1998 were attributable
to  contracts  with  federal,  state,  and  local  governments,   including  93%
attributable  to the federal  government.  This represents a decrease of 2% from
1997 and relates primarily to the increase in commercial  revenue generated from
Enterworks,  Inc. in 1998. The Company's revenues are generated from a number of
contract  vehicles.  In general,  the Company believes its contract portfolio is
characterized  as having  low to  moderate  financial  risk as the  Company  has
limited  long-term fixed price development  contracts.  The Company's firm fixed
price  contracts  consist  principally of contracts for the purchase of computer
equipment  at  established  contract  prices or  contracts  for  maintenance  of
computer hardware.  A significant  portion of the Company's revenue is from time
and  material  and  cost  reimbursable  contracts,  which  generally  allow  the
pass-through  of  allowable  costs plus a profit  margin.  For 1998,  revenue by
contract  type was as follows:  time and  materials,  24.6%;  firm fixed  price,
56.8%;  cost  reimbursable,  13.7%;  fixed monthly rate, 4.7%; and other,  0.2%.
While the Company has not  experienced any  significant  recent  terminations or
renegotiations,  government  contracts may be terminated or  renegotiated at any
time at the convenience of the government.

<PAGE>

Statement of Operations Data

     The following  table sets forth  certain  consolidated  financial  data and
related percentages for the periods indicated:

<TABLE>
<CAPTION>
                                                              Year Ended December 31, 
                                             -----------------------------------------------------------------------
                                                    1998                     1997                     1996          
                                             ------------------       -------------------      ---------------------

                                                            (dollar amounts in thousands)
<S>                                          <C>         <C>          <C>          <C>          <C>           <C>
Sales                                        $207,086    100.0%       $253,787     100.0%       $188,895      100.0%
Cost of sales                                 182,915     88.3         218,430      86.1         168,281       89.1
Selling, general and
   administrative expenses                     30,842     14.9          27,054      10.7          29,055       15.4
Goodwill amortization                             589      0.3             892       0.3           1,001        0.5
                                              -------     ----         -------     -----           -----       ----

   Operating (loss) income                     (7,260)    (3.5)          7,411       2.9          (9,442)      (5.0)
Interest expense                               (6,555)    (3.1)         (7,455)     (2.9)         (5,668)      (3.0)
Gain on Sale of Assets                          5,683      2.7              --        --              --         --
Other income (expense)                             64       --             124        --           ( 445)      (0.2)
                                                ------    ----          ------     -----          -------      ----
(Loss) income before taxes                     (8,068)    (3.9)             80        --         (15,555)      (8.2)
Income tax (provision) benefit                 (1,103)    (0.5)          1,332       0.6           5,739        3.0
                                               -------    -----          -----      ----          ------        ---

(Loss) income from
   continuing operations                       (9,171)    (4.4)          1,412       0.6          (9,816)      (5.2)
Discontinued Operations:
  Income from discontinued
 operations, net of tax                            --       --              --        --             500        0.2
  Gain on sale of TCS, net of tax                  --       --              --        --          11,524        6.1
                                                 ----     ----           -----       ----         ------        ---
Net (loss) income                            $ (9,171)    (4.4)%        $1,412       0.6%       $  2,208        1.1%
                                               =======    ======         =====       ===          ======        ===
</TABLE>

Financial Data by Operating Segment

     The Company has three  reportable  operating  segments:  Enterworks,  Inc.,
Systems and Support Services, and Products.

         Sales,  gross profit and gross margin by market segment for the periods
designated below are as follows:
<TABLE>
<CAPTION>

                                                                         Year Ended December 31,             
                                                           -----------------------------------------------------
                                                           1998                     1997                 1996         
                                                           -----------------------------------------------------
                                                             (dollar amounts in thousands)
<S>                                                        <C>                     <C>                  <C>                   
Revenue:
    Enterworks, Inc.                                       $  7,073                $  3,398             $  2,140
    Systems and Support Services                             98,277                 121,052              101,535
    Products                                                101,736                 129,337               85,220
                                                            -------                 -------              -------
      Total                                                $207,086                $253,787             $188,895
                                                            =======                 =======              =======

Gross Profit:
    Enterworks, Inc.                                       $  1,542                $   (132)            $    955
    Systems and Support Services                             14,046                  20,614               11,237
    Products                                                  8,583                  14,875                8,422
                                                             ------                  ------               ------
      Total                                                $ 24,171                $ 35,357             $ 20,614
                                                            =======                  ======              =======

Gross Margin:
    Enterworks, Inc.                                        21.8 %                    (3.9)%               44.6 %
    Systems and Support Services                            14.3 %                    17.0 %               11.1 %
    Products                                                 8.4 %                    11.5 %                9.9 %
      Total                                                 11.7 %                    13.9 %               10.9 %
</TABLE>

<PAGE>


Results of Operations

Years ended December 31, 1998 and 1997

     Revenue for 1998 was $207.1 million, a $46.7 million or 18.4% decrease from
1997.  Approximately  $27.6  million of this  decrease was  attributable  to the
Products Group,  which experienced lower revenue primarily due to the completion
of the Immigration and Naturalization  Services Contract ("INS Contract") in the
third quarter of 1997. The INS contract  contributed revenue of $27.8 million in
1997. In addition,  the Systems and Support  Services Group  experienced a $22.8
million decrease in revenue for the year ended December 31, 1998 compared to the
same  period of 1997.  This  decrease  was  primarily  due to the sale of TIS in
February 1998 and the expiration of its Immigration and Naturalization  Services
Blanket Purchase  Agreement for Field Operation  Support Contract ("INS BPA") in
the fourth quarter of 1997. TIS and INS BPA contributed revenue of $24.7 million
and $12.2 million, respectively, during 1997 with corresponding 1998 revenues of
$4.0 million and  $100,000,  respectively.  The declines in Products and Systems
and  Support  Services  revenue  were  partially  offset by an  increase of $3.7
million,  or 108%,  in Enterworks  revenue for the year ended  December 31, 1998
compared to the same period of 1997.

     Cost of revenue  was 88.3% of revenue  for 1998,  as  compared to 86.1% for
1997.  The increase in cost of revenue as a  percentage  of revenue is primarily
attributable to unfavorable  changes in product mix and the under  absorption of
infrastructure costs. On a dollar basis, the decrease in cost of revenue for the
year is primarily attributable to the decreases in revenue.

     Gross  profit  decreased by $11.2  million or 31.6% from 1997 to 1998.  The
decrease is primarily  attributable to the revenue declines  discussed above, as
well  as the  unfavorable  changes  in  product  mix  and  under  absorption  of
infrastructure costs.

     Selling, general and administrative expenses ("SG&A") were $30.8 million in
1998 and $27.1 million in 1997. During 1998, the Company increased  expenditures
for Enterworks  research and development and sales and marketing by $5.1 million
and $1.2 million,  respectively,  as compared to the same 1997 period.  Research
and development  expense for 1998 included a net realizable  value adjustment of
$1.7 million to  capitalized  software  costs.  However,  these  increases  were
partially offset by reductions in other SG&A expenditures,  relating principally
to the consolidation of certain administrative support functions.

     Goodwill  amortization  expense decreased $303,000 to $589,000 for 1998, as
compared to $892,000 in 1997.  This  reduction is primarily due to a decrease in
the goodwill balance associated with the sale of the TIS division in early 1998.

     Telos sold  substantially all of the net assets of TIS in the first quarter
of 1998. The transaction  generated $14.7 million in cash proceeds and a gain of
$5.7 million.

     Interest  expense  decreased  $900,000 to $6.6  million in 1998,  from $7.5
million in 1997.  This decrease is due  principally to a decrease in the average
balance of the Senior Credit Facility for most of 1998 compared to 1997, as well
as a reduction in the bank's base rate due to changing economic conditions.

     The income tax provision  was $1.1 million for 1998.  The tax provision was
primarily  attributable  to state income  taxes,  and  increases  in  allowances
relating to the  recoverability of deferred tax assets. An income tax benefit of
$1.3 million was recorded for 1997,  principally because the Company reduced its
valuation allowance relating to net operating loss carryforwards  expected to be
utilized as a result of the gain on the TIS sale.

<PAGE>

Years ended December 31, 1997 and 1996

     Revenue  increased $64.9 million,  or 34.4%, from $188.9 million in 1996 to
$253.8  million in 1997.  This  increase was  attributable  both to the Products
Group which  reported an increase in sales of $44.1  million and the Systems and
Support Services Group with an increase in sales of $19.5 million.

     The increase in the Systems  Integration  Group's revenue was primarily due
to orders  under its  Joint  Recruiting  Information  Support  System  ("JRISS")
Blanket  Purchase  Agreement  ($15.1 million) as well as its U.S. Courts Systems
Data  Communication  Network contract ($10.6 million) which were both awarded in
1997. In general,  those 1996 contracts  that  continued  into 1997  experienced
reduced order  volume,  except for the Small  Multi-User  Computer II ("SMC-II")
contract  which had an increase in order  volume of $25.7  million  from 1996 to
1997.

     The  increase  in the  Systems  and  Support  Services  Group's  revenue is
primarily  attributable  to the effect of a Blanket  Purchase  Agreement won and
completed  in  1997  for  the  Immigration  and  Naturalization  Service  ($12.2
million).  The TIS division,  which held Jet  Propulsion  Laboratory  contracts,
experienced  an increase in revenue of $6.1  million in 1997,  compared to 1996.
Hardware support revenues remained consistent between 1997 and 1996.

     Cost of sales  increased by $50.1 million,  or 29.8%,  to $218.4 million in
1997 from $168.3 million in 1996. This increase is the result of increased sales
during the year, and changes in the revenue product mix. The Systems and Support
Services  Group  benefited  significantly  as a result of new contract  revenues
described above. The cost of labor required to support these new contracts, as a
percentage  of  revenue,  was much less  than to  support  traditional  services
contracts, on a per hour basis.  Additionally,  the Systems and Support Services
Group implemented a cost reduction program to reduce labor and material costs in
the hardware  support area. The Products  Group  benefited from the insertion of
new technology with lower cost  components as part of the solutions  provided in
its larger contracts.  However,  in the second half of 1997,  certain additional
reserves  for the  write-off of  inventory  of  approximately  $1.8 million were
recorded.

     Gross profit  increased by $14.8  million for the year to $35.4  million in
1997, from $20.6 million in 1996. The increase is primarily  attributable to the
changes in cost of sales discussed above and reflects the result of cost cutting
measures initiated in 1996 and continued in 1997, including staff reductions and
branch consolidation.

     Selling,  general and administrative (SG&A) expenses decreased for the year
by  approximately  $2.0 million,  from $29.1 million in 1996 to $27.1 million in
1997. A reduction in SG&A costs in 1997 resulted  from the Company's  relocation
to a new headquarters  facility.  The lease for the new facility is considered a
capital  lease  rather than the  previous  operating  lease.  The  Company  also
realized a reduction in facility and operating  costs as a result of the sale of
TCS in late 1996.  Additionally,  aggressive cost reduction programs implemented
in late 1996,  reduced bid and proposal and sales and marketing expenses as well
as other  discretionary  expenses  contributed to the decrease in SG&A expenses.
SG&A as a percentage of sales decreased to 10.7% for 1997 from 15.4% in 1996.

     Goodwill  amortization  expense  was  $892,000  for 1997  compared  to $1.0
million for 1996.  The reduction in goodwill  amortization  is  attributable  to
reductions in the goodwill  balance as a result of the sale of TCS which reduced
goodwill by approximately $6.9 million in 1996.

     The change  from an  operating  loss of $9.4  million in 1996 to  operating
income of $7.4 million in 1997 is a result of the  increases in gross profit and
the decreases in SG&A discussed above.

     Other  non-operating  income of $124,000 for 1997 is compared to an expense
of $445,000 in 1996. The income in 1997 is attributable to non-operating refunds
and other miscellaneous  charges.  The expense in 1996 was attributable to costs
required to settle a previous non-operating related lawsuit.

<PAGE>
     Interest expense increased  approximately  $1.8 million to $7.5 million for
1997,  as  compared  to $5.7  million in 1996.  The  increase is a result of the
significant  increase in the average  outstanding  balance of the Senior  Credit
Facility  for most of 1997,  as well as an  increase in  interest  recorded  for
capital lease  obligations  associated  with the mid-1996 move by the Company to
its new manufacturing and support facility in Ashburn, Virginia.

     The deferred tax benefit recognized for 1997 of $1.3 million represents the
reduction of the valuation allowance related to net operating loss carryforwards
which are  expected to be utilized to offset the taxable  gain of  approximately
$11 million were recognized related to the sale of TIS in February 1998.

Liquidity and Capital Resources

     The Company's  capital  structure  consists of a revolving credit facility,
subordinated notes, and redeemable preferred stock and common stock.

     At December  31,  1998,  the Company  had an  outstanding  balance of $36.2
million on its $45 million Senior Credit Facility (the "Facility"). The Facility
matures on July 1, 2000 and is  collateralized  by certain assets of the Company
(primarily  inventory  and  accounts  receivable).   The  amount  of  borrowings
fluctuates based on the underlying asset borrowing base as well as the Company's
working  capital  requirements.  At December  31, 1998,  the Company,  under its
borrowing base formula,  had $6.7 million of unused  availability.  The Facility
has various covenants which may, among other things, restrict the ability of the
Company to merge with  another  entity,  sell or transfer  certain  assets,  pay
dividends and make other distributions beyond certain limitations.  The Facility
also requires the Company to meet certain leverage,  net worth interest coverage
and  operating  goals.  At December 31, 1998,  the Company was not in compliance
with several covenants contained in the Facility;  however,  the bank has waived
this non-compliance.  In addition, the bank has amended the covenants to conform
to the Company's 1999 budget expectations.

     The Company's  subordinated  notes are held principally by shareholders and
management,  and totaled  $18.5  million at December 31, 1998.  These notes bear
interest at rates between 8% and 17% and become payable in 2000 through 2001.

     The Company currently has two primary classes of redeemable preferred stock
- - Senior  Redeemable  Preferred  Stock and Public  Preferred  Stock.  Each class
carries  cumulative  dividend rates of 12% to 14.125%.  At December 31, 1998 the
total carrying value of redeemable  preferred stock,  including  accumulated and
unpaid dividends,  was $37.4 million. The Company accrues dividends and provides
for accretion related to the redeemable  preferred stock.  Mandatory  redemption
for the Senior Redeemable  Preferred Stock including all dividends  payable,  is
required on  December  31,  2001,  subject to the legal  availability  of funds.
Mandatory  redemption  for the  Public  Preferred  Stock is  required  from 2005
through 2009, subject to the legal availability of funds.

     Cash used by operating  activities  was $2.7 million in 1998, due primarily
to the year's net loss and an  increase in  accounts  receivable  as a result of
sales growth in the fourth quarter  compared to the prior year's fourth quarter.
Cash  provided by investing  activities  was $11.4  million in 1998,  reflecting
capital  expenditures of $1.3 million and $2.0 million in continued  investments
in software development costs related to Enterworks, offset by the proceeds from
the  sale  of TIS of  $14.7  million.  The  Company  used  cash  from  financing
activities of $8.9 million in 1998,  reflecting  principally the payment of $6.5
million for the retirement of the UBS equity holdings, the repurchase of 410,000
shares of Redeemable  Preferred Stock for $1.6 million,  and net payments on the
Facility.

     In February 1998, the Company sold its TIS division for  approximately  $15
million.  The  net  proceeds  from  the  sale  were  used  to pay  down  amounts
outstanding under the Facility.

     In May 1998,  the Company  retired  all of the equity  holdings of Union de
Banques Suisses (Luxembourg) S.A. for $6.5 million, of which $5 million was paid
in cash in May 1998,  and the remaining  $1.5 million was funded by two separate
letters of credit.  UBS was paid $1.0 million in September  1998 using the first
letter of credit  secured by the Company's  lender and $500,000 in November 1998
using the second letter of credit.

     In  November  1998,  the  Company  retired  410,000  shares  of the  Public
Preferred Stock held by certain shareholders.  The Company repurchased the stock
at $4.00 per share. The carrying value of these shares was $3.8 million, and the
$2.2 million excess of the carrying  amount of these shares of Public  Preferred
Stock over the  redemption  price of $1.6 million was recorded as an increase in
capital in excess of par; there was no impact on income from this transaction.

     In November 1998, the Company issued additional Senior  Subordinated  Notes
to certain  shareholders  which are  classified  as Series D. The Series D Notes
total $1.8 million and are unsecured. The Series D Notes have a maturity date of
October 1, 2000 and bear interest at 14% per annum.  Interest is paid  quarterly
on  January 1,  April 1, July 1, and  October 1 of each  year.  The notes can be
prepaid at the Company's  option.  These Notes contain the same payment  premium
provisions as the Series B and Series C Notes (see above).  In  connection  with
the debt,  the Company  issued  1,500,000  warrants  to  purchase  shares of the
Company's Class A Common Stock.  The warrants have an exercise price of $.01 and
an  exercise  period of 22  months.  The  Company  has  assigned  a value to the
warrants of $420,000  which has been  included in capital in excess of par.  The
amount  outstanding of the  subordinated  debt was  approximately  $1,396,000 at
December 31, 1998.
<PAGE>
     The accompanying  consolidated financial statements have been prepared on a
going  concern  basis,   which   contemplates  the  realization  of  assets  and
satisfaction  of  liabilities  in the normal  course of  business.  However,  as
reflected in the accompanying  financial statements,  the Company incurred a net
loss of $9.2  million in 1998.  This loss  included the effect of a $5.7 million
non-recurring gain from the sale of its TIS division.  In addition,  the Company
was not in  compliance  with several  covenants of its Senior  Credit  Facility,
although the lender has provided  waivers for the violations and has amended the
covenants to conform to the  Company's  1999 budget  expectations.  Based on its
budget,  the  Company  anticipates  a need  for  approximately  $10  million  of
additional  financing  for  1999.  These  factors,   including  the  uncertainty
surrounding  whether  and when the  additional  financing  will be  secured  and
whether the Company  will meet its budget  expectations  and bank  covenants  in
1999, indicate that the Company may be unable to continue as a going concern for
a  reasonable  period of time.  The  financial  statements  do not  include  any
adjustments  relating  to the  recoverability  of assets and  classification  of
liabilities  that might be necessary should the Company be unable to continue as
a going concern.  The Company's  continuation as a going concern is dependent on
its ability to obtain the additional financing required,  meet its 1999 budgeted
cash flow objectives, and comply with the terms of its Senior Credit Facility.

     The  Company  believes  that the  necessary  additional  financing  will be
secured through one or more of the following sources:  the sale of a division or
asset which is not critical to its strategic  goals;  additional  financing from
its lender;  or additional  equity  financing.  Alternatives are currently being
pursued under each of these sources; however, the required financing has not yet
been secured.  The Company  believes the required  funding will be arranged in a
timely manner that does not have a significant adverse impact on its operations.
However,  there  can be no  assurance  that the  Company  will be able to secure
financing  sufficient  for its  needs  and at terms  favorable  to the  Company.
Additionally,  there can be no assurance  that the Company will be successful in
meeting budget  expectations and bank covenants in 1999.  Failure by the Company
to obtain sufficient financing,  meet its budget expectations,  or meet its bank
covenants  may  have  a  material  adverse  effect  on the  Company's  financial
position,  results  of  operations  or  cash  flows.  See  also  Note  1 to  the
Consolidated Financial Statements.

Capital Expenditures

     The Company believes that its business is generally not capital  intensive.
Capital  expenditures  for property and equipment  were $1.2 million in 1998 and
$2.6 million in each of 1997 and 1996. The Company incurred capital expenditures
in 1996 as a result of moving to a new headquarters and integration facility. In
1996, the Company  entered into a twenty year lease for a building that provides
significantly  more  integration and warehouse  space.  The Company  anticipates
capital  expenditures of approximately $2.6 million in 1999, however,  there can
be no assurance that this level of capital expenditures will occur.

Inflation

     The rate of  inflation  has been  moderate  over the past five  years  and,
accordingly,  has not had a significant  impact on the Company.  The Company has
generally been able to pass through  increased costs to customers through higher
prices to the extent  permitted by  competitive  pressures.  The Company's  cost
reduction efforts have offset the effects of inflation, if any, on the Company's
performance.


<PAGE>

Year 2000

     Year 2000 issues refer  generally to the  problems  that some  software may
have in determining the correct century for the year. For example, software with
date-sensitive  functions  that is not Year  2000  compliant  may not be able to
distinguish whether "00" means 1900 or 2000, which may result in failures or the
creation of erroneous results.

     The  Company,   like  most  owners  of  computer  software,   is  modifying
significant  portions of its  internal  use  software  so that it will  function
properly in the Year 2000. Accordingly,  the Company has incurred and expects to
continue to incur  internal staff costs as well as consulting and other expenses
related to software  and  infrastructure  enhancements  necessary to prepare the
systems for the Year 2000.  Total  expenditures for such costs were not material
to the Company's  consolidated  financial statement in 1998 or 1999. The Company
expects to complete its internal use software  compliance  efforts  during 1999.
Maintenance,  modification costs and software purchased with the express purpose
of fixing the Year 2000 problem are expensed as incurred.

     The Company has queried its key  suppliers and vendors to assess their Year
2000  readiness and has been informed that software  licensed to the Company for
resale will be compliant by the Year 2000.  Therefore,  the Company is not aware
of any  problems  that  would have a material  adverse  impact on its  financial
position, results of operations or cash flows. However, the Company has no means
of ensuring compliance by its suppliers or vendors. If its suppliers and vendors
are not Year 2000  compliant,  there could be a material  adverse  effect on the
Company.

     As is the case with other similarly situated computer companies,  if Telos'
current or future  customers  fail to achieve  Year 2000  compliance  or if they
divert technology expenditures to address Year 2000 compliance problems,  Telos'
business,  results of  operations  or financial  condition  could be  materially
adversely  affected.  For example,  agencies of the United States Government are
principal customers of the Company. If such agencies experience significant Year
2000 system failures, under terms of typical government contracts, the Company's
performance  and/or receipt of payments due could be delayed or contracts  could
be terminated for convenience, which could have a material adverse effect on the
Company.  If similar  failures are  experienced by other  customers or potential
customers of the Company,  this could also have a material adverse impact on the
Company.

     Based on its internal review and the compliance  information  received from
its suppliers and vendors, the Company does not believe that there is a need for
a  contingency  plan for Year 2000  system  non-compliance.  Such a plan will be
developed  if the Company  becomes  aware of any Year 2000  non-compliance  that
would impact its critical  operations.  The cost of developing and  implementing
such a plan, if required,  may in itself be material.  

     Although  the  Company  does not  believe  that it will incur any  material
unanticipated  costs  or  experience   material   disruptions  in  its  business
associated with preparing its internal  systems for the Year 2000,  there can be
no  assurances  that the  Company  will  not  experience  serious  unanticipated
consequences  and/or material costs caused by undetermined  errors or defects in
the technology used in its systems,  which are composed of third party software,
third party  hardware  that  contains  embedded  software and the  Company's own
software products.  A worst case scenario could include:  (i) corruption of data
contained in the Company's internal  information  systems,  (ii)  interruptions,
delays or  terminations in the Company's  business with  government  agencies or
other  customers  associated  with their own Year 2000  problems,  and (iii) the
failure of  infrastructure  services  provided by government  agencies and other
third parties (e.g.,  electricity,  phone  service,  water  transport,  internet
services,  etc.). Any of these unexpected outcomes could have a material adverse
effect on the Company.

     Management  believes that computer systems and software created and sold by
the Company is compliant or will be compliant by the Year 2000. However, because
the Company is in the business of selling computer  systems,  the Company's risk
of being  subjected  to  lawsuits  relating  to Year 2000 issues is likely to be
greater than that of other  industries.  Computer systems may involve  different
hardware and software components from different manufacturers; therefore, it may
be difficult to determine  which component in a computer system may cause a Year
2000  issue.  As a result,  the Company may be  subjected  to Year 2000  related
lawsuits  independent  of  whether  its  products  and  services  are Year  2000
compliant. The outcomes of such lawsuits and the impact on the Company cannot be
determined at this time.

<PAGE>

Recent Accounting Pronouncements

     In March 1998,  the  American  Institute of  Certified  Public  Accountants
issued  Statement of Position  98-1 ("SOP 98-1"),  "Accounting  for the Costs of
Computer  Software  Developed  or  Obtained  for  Internal  Use." This  standard
requires  companies to capitalize  qualifying  computer software costs which are
incurred  during the  application  development  stage and amortize them over the
software's  estimated  useful  life.  SOP 98-1 is  effective  for  fiscal  years
beginning  after  December 15, 1998.  The Company is  currently  evaluating  the
impact of SOP 98-1 on its financial statements and related disclosures.

     In November 1998, the American  Institute of Certified  Public  Accountants
issued  Statement  of Position  98-9 ("SOP  98-9"),  "Modification  of SOP 97-2,
"Software  Revenue  Recognition",  with  Respect to Certain  Transactions".  The
Company  is  currently  evaluating  the  impact  of SOP  98-9  on its  financial
statements and related disclosures.

Forward-Looking Statements

     This Annual Report on Form 10-K contains  forward-looking  statements.  For
this  purpose,  any  statements  contained  herein  that are not  statements  of
historical fact may be deemed to be forward-looking statements. Without limiting
the  foregoing,  the words  "believes,"  "anticipates,"  "plans,"  "expects" and
similar expressions are intended to identify forward-looking  statements.  There
are a number of important  factors that could cause the Company's actual results
to differ materially from those indicated by such forwarding-looking statements.
These  factors  include,  without  limitation,  those set forth  below under the
caption "Certain Factors That May Affect Future Results."

Certain Factors That May Affect Future Results

     The following important factors,  among others,  could cause actual results
to differ materially from those indicated by forward-looking  statements made in
this Annual Report on Form 10-K and presented  elsewhere by management from time
to time.

     A number of  uncertainties  exist that could  affect the  Company's  future
operating results, including,  without limitation,  general economic conditions,
the timing and approval of the federal government's fiscal year budget, business
growth through obtaining new business and, once obtained,  the Company's ability
to successfully  perform at a profit,  the Company's ability to convert contract
backlog to  revenue,  the  Company's  ability  to secure  adequate  capital  and
financing to support its business,  the success of the Company's  investments in
Enterworks,  and the risk of the federal government  terminating  contracts with
the Company.  While the Company has not experienced  contract  terminations with
the federal government, the federal government can terminate at its convenience.
Should this occur, the Company's operating results could be adversely impacted.

     As a high percentage of the Company's revenue is derived from business with
the federal  government,  the  Company's  operating  results  could be adversely
impacted  should the federal  government  not approve and  implement  its annual
budget in a timely fashion.

     The accompanying  consolidated financial statements have been prepared on a
going  concern  basis,   which   contemplates  the  realization  of  assets  and
satisfaction  of  liabilities  in the normal  course of  business.  However,  as
reflected in the accompanying  financial statements,  the Company incurred a net
loss of $9.2  million in 1998.  This loss  included the effect of a $5.7 million
non-recurring gain from the sale of its TIS division.  In addition,  the Company
was not in  compliance  with several  covenants of its Senior  Credit  Facility,
although the lender has provided  waivers for the violations and has amended the
covenants to conform to the  Company's  1999 budget  expectations.  Based on its
budget,  the  Company  anticipates  a need  for  approximately  $10  million  of
additional  financing  for  1999.  These  factors,   including  the  uncertainty
surrounding  whether  and when the  additional  financing  will be  secured  and
whether the Company  will meet its budget  expectations  and bank  covenants  in
1999, indicate that the Company may be unable to continue as a going concern for
a  reasonable  period of time.  The  financial  statements  do not  include  any
adjustments  relating  to the  recoverability  of assets and  classification  of
liabilities  that might be necessary should the Company be unable to continue as
a going concern.  The Company's  continuation as a going concern is dependent on
its ability to obtain the additional financing required,  meet its 1999 budgeted
cash flow objectives, and comply with the terms of its Senior Credit Facility.

     The  Company  believes  that the  necessary  additional  financing  will be
secured through one or more of the following sources:  the sale of a division or
asset which is not critical to its strategic  goals;  additional  financing from
its lender;  or additional  equity  financing.  Alternatives are currently being
pursued under each of these sources; however, the required financing has not yet
been secured.  The Company  believes the required  funding will be arranged in a
timely manner that does not have a significant adverse impact on its operations.
However,  there  can be no  assurance  that the  Company  will be able to secure
financing  sufficient  for its  needs  and at terms  favorable  to the  Company.
Additionally,  there can be no assurance  that the Company will be successful in
meeting budget  expectations and bank covenants in 1999.  Failure by the Company
to obtain sufficient financing,  meet its budget expectations,  or meet its bank
covenants  may  have  a  material  adverse  effect  on the  Company's  financial
position, results of operations or cash flows.
<PAGE>

Item 7a.     Quantitative and Qualitative Disclosures About Market Risk

     The Company's exposure to market risk for changes in interest rates relates
primarily to the Company's long-term debt obligations.

     The  Company is exposed to  interest  rate  volatility  with  regard to its
variable rate debt obligations  under its Senior Credit Facility.  This facility
bears interest at 1.00%,  subject to certain  adjustments,  over the bank's base
rate.  The  weighted  average  interest  rate in 1998 was 9.95%.  This  facility
expires on July 1, 2000 and has outstanding balance of $36.2 million at December
31, 1998.

     The Company's  other long-term debt at December 31, 1998 consists of Senior
Subordinated  Notes B, C, and D which bear  interest at fixed rates ranging from
14% to  17%.  The  Senior  Subordinated  Notes  mature  as to  principal  in the
aggregate  amount of $16,173,000 on October 1, 2000.  Additionally,  the Company
has  subordinated  debt issued by their majority owned  subsidiary,  Enterworks,
which bears  interest at a fixed rate of 8%. The  Enterworks  Notes mature as to
principal in the aggregate  amount of $3,277,960 on January 1, 2000. The Company
has no cash flow  exposure  due to rate changes for its Senior  Subordinated  or
Enterworks Notes.
<PAGE>


Item 8.  Financial Statements and Supplementary Data

<TABLE>
<CAPTION>
                                              INDEX TO CONSOLIDATED FINANCIAL STATEMENTS


                                                                                                           Page
<S>                                                                                                         <C>    
Report of Independent Accountants - PricewaterhouseCoopers LLP..............................................19

Consolidated Statements of Operations for the Years Ended
    December 31, 1998, December 31, 1997, and December 31, 1996.............................................20

Consolidated Balance Sheets as of December 31, 1998 and
    December 31, 1997.......................................................................................21-22

Consolidated Statements of Cash Flows for the Years Ended
    December 31, 1998, December 31, 1997, and December 31, 1996.............................................23

Consolidated Statements of Changes In Stockholders' Investment (Deficit)
    for the Years Ended December 31, 1998, December 31, 1997,
    and December 31, 1996...................................................................................24

Notes to Consolidated Financial Statements..................................................................25-43


                                                          INDEX TO SCHEDULES

All  schedules  are omitted  because  they are not  applicable  or the  required
information  is  included  in the  consolidated  financial  statements  or notes
thereto.
</TABLE>




<PAGE>


                    Report of Independent Accountants






To the Board of Directors and Stockholders
  of Telos Corporation


     In our  opinion,  the  accompanying  consolidated  balance  sheets  and the
related consolidated  statements of operations,  of cash flows and of changes in
stockholders' investment (deficit) present fairly, in all material respects, the
financial  position of Telos  Corporation  and its  subsidiaries at December 31,
1998 and 1997, and the results of their operations and their cash flows for each
of the three years in the period ended  December 31, 1998,  in  conformity  with
generally accepted  accounting  principles.  These financial  statements are the
responsibility of the Company's management;  our responsibility is to express an
opinion on these  financial  statements  based on our audits.  We conducted  our
audits of these  statements  in  accordance  with  generally  accepted  auditing
standards which require that we plan and perform the audit to obtain  reasonable
assurance   about  whether  the  financial   statements  are  free  of  material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the  amounts  and  disclosures  in  the  financial  statements,   assessing  the
accounting  principles  used and significant  estimates made by management,  and
evaluating the overall  financial  statement  presentation.  We believe that our
audits provide a reasonable basis for the opinion expressed above.

     The  accompanying  consolidated  financial  statements  have been  prepared
assuming that the Company will continue as a going concern. As discussed in Note
1 to the consolidated financial statements, the Company has suffered losses from
operations  and has not yet been able to obtain  sufficient  financing  for 1999
working capital  purposes.  These conditions raise  substantial  doubt about its
ability to continue as a going  concern.  Management's  plans in regard to these
matters are also described in Note 1. The consolidated  financial  statements do
not  include  any  adjustments  that  might  result  from  the  outcome  of this
uncertainty.

PRICEWATERHOUSECOOPERS LLP


McLean, VA
April 1, 1999




<PAGE>
<TABLE>
<CAPTION>


                                                       TELOS CORPORATION AND SUBSIDIARIES
                                                     CONSOLIDATED STATEMENTS OF OPERATIONS
                                                             (amounts in thousands)



                                                                  Year Ended December 31,                     
                                                 -------------------------------------------------------------
                                                         1998                  1997                   1996     
                                                 -------------------------------------------------------------

<S>                                                   <C>                     <C>                  <C>                  
Sales
    Enterworks, Inc.                                  $  7,073                $  3,398             $   2,140
    Systems and Support Services                        98,277                 121,052               101,535
    Products                                           101,736                 129,337                85,220
                                                       -------                 -------               -------

                                                       207,086                 253,787               188,895
                                                       -------                 -------               -------

Costs and expenses
    Cost of Enterworks, Inc.                             5,531                   3,530                 1,185
    Cost of Systems and
      Support Services                                  84,231                 100,438                90,298
    Cost of Products                                    93,153                 114,462                76,798
    Selling, general and
      administrative expenses                           30,842                  27,054                29,055
    Goodwill amortization                                  589                     892                 1,001
                                                        ------                 -------               -------

                                                       214,346                 246,376               198,337
                                                       -------                 -------               -------

Operating (loss) income                                 (7,260)                  7,411                (9,442)

Other income (expenses)
    Non-operating income (expense)                          64                     124                  (445)
    Gain on sale of assets                               5,683                      --                    --
    Interest expense                                    (6,555)                 (7,455)               (5,668)
                                                        -------                 ------                 -----

(Loss) income before income taxes                       (8,068)                     80               (15,555)
(Provision) benefit for income taxes                    (1,103)                  1,332                 5,739
                                                       ---------                ------                ------

(Loss) income from continuing
    operations                                          (9,171)                  1,412                (9,816)

Discontinued operations:
 Income from discontinued
    operations (net of income tax
    provision of $566)                                      --                      --                   500

 Gain on sale of Consulting
    Services, (net of income tax
      provision of $6,327)                                  --                      --                11,524
                                                        ------                  ------                ------

Net (loss) income                                     $ (9,171)                $ 1,412               $ 2,208
                                                      =========                 ======                ======














  The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>


<PAGE>
<TABLE>
<CAPTION>

                                TELOS CORPORATION AND SUBSIDIARIES
                                    CONSOLIDATED BALANCE SHEETS
                                       (amounts in thousands)

                                               ASSETS




                                                      December 31,             
                                              ---------------------------------      
                                               1998                       1997
                                              ---------------------------------

<S>                                           <C>                       <C>                           
Current assets
    Cash and cash equivalents
      (includes restricted cash of
         $160 at December 31, 1998)           $   408                   $   587
    Accounts receivable, net                   56,783                    57,972
    Inventories, net                            8,662                    12,390
    Deferred income taxes                       4,164                     4,632
    Prepaid income taxes                          220                       268
    Other current assets                          487                       408
                                              -------                    ------

      Total current assets                     70,724                    76,257
                                              -------                    ------

Property and equipment
    Land and building                             346                       346
    Furniture and equipment                    21,677                    21,469
    Leasehold improvements                      2,683                     2,750
    Property and equipment
      under capital leases                     13,774                    13,774
                                               ------                    ------
                                               38,480                    38,339

    Accumulated depreciation
      and amortization                        (24,159)                  (22,609)
                                              --------                   ------

                                               14,321                    15,730
                                               ------                    ------

Goodwill, net                                   6,896                    12,466
Deferred income taxes                             442                       385
Other assets                                    2,868                     4,880
                                              -------                   -------
                                             $ 95,251                  $109,718
                                              =======                   =======













     The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>

<PAGE>
<TABLE>
<CAPTION>

                                                  TELOS CORPORATION AND SUBSIDIARIES
                                                        CONSOLIDATED BALANCE SHEETS
                                                 (amounts in thousands, except share data)

                                             LIABILITIES AND STOCKHOLDERS' INVESTMENT (DEFICIT)


                                                                                            December 31,     
                                                                                    ---------------------------
                                                                                    1998                   1997
                                                                                    ---------------------------
<S>                                                                               <C>                    <C>                  
Current liabilities
   Accounts payable                                                               $ 25,206               $16,912
   Accrued compensation and benefits                                                 7,400                 8,553          
   Unearned warranty revenue                                                         1,349                 1,135
   Current portion, capital lease obligations                                          379                   430
   Other current liabilities                                                         3,117                 5,401
                                                                                    ------                 -----

      Total current liabilities                                                     37,451                32,431

Senior credit facility                                                              36,159                39,945
Senior subordinated notes                                                           18,492                16,930
Capital lease obligations                                                           11,710                12,085
                                                                                   -------               -------
      Total liabilities                                                            103,812               101,391
                                                                                   -------               -------

Commitments and contingencies (Note 9)

Redeemable preferred stock
    Senior redeemable preferred stock                                                5,631                 5,207
    Class B redeemable preferred stock                                                  --                12,035
    Redeemable preferred stock                                                      31,729                29,951
                                                                                    ------                ------
                                                                                    37,360                47,193
                                                                                    ------                ------
Stockholders' investment
   Class A common stock, no par value, 
     50,000,000 shares authorized, 21,238,980 and 
     23,076,753 shares issued and outstanding at 
     1998 and 1997, respectively                                                        65                    65
   Class B common stock, no par value, 50,000,000 shares
    authorized, 4,037,628 shares issued and outstanding                                 13                    13
   Capital in excess of par                                                          2,116                    --
   Accumulated deficit                                                             (48,115)              (38,944)
                                                                                  ---------               ------

   Total stockholders' investment (deficit)                                        (45,921)              (38,866)
                                                                                  ---------               ------

                                                                                 $  95,251              $109,718
                                                                                   ========              =======





   The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>



<PAGE>
<TABLE>
<CAPTION>


                                                  TELOS CORPORATION AND SUBSIDIARIES
                                                 CONSOLIDATED STATEMENTS OF CASH FLOWS
                                                        (amounts in thousands)
                                                                                   Year Ended December 31,
                                                                                 ---------------------------------
                                                                                   1998        1997        1996
                                                                                 ---------------------------------

<S>                                                                             <C>          <C>          <C>    
Operating activities:
    Net (loss) income                                                           $(9,171)     $ 1,412      $ 2,208
    Adjustments to reconcile net income
      to cash used in operating activities:
      Depreciation and amortization                                               4,266        4,098        3,058
      Gain on sale of TCS                                                            --           --      (17,176)
      Loss on disposal of fixed assets                                               --          715           --
      Goodwill amortization                                                         589          892        1,418
      Amortization of debt issuance costs                                           243          243          243
      Accretion of subordinated notes                                               181          143           78
      Provision for inventory obsolescence                                        1,254        2,150        1,008
      Provision for doubtful accounts receivable                                     39          490          647
      Gain on sale of assets                                                     (5,683)          --           --
      Provision for net realizable value of other assets                          1,743          887           --
      Deferred income tax provision (benefit)                                       434       (1,719)         900
      Changes in assets and liabilities
         Increase in accounts receivable                                         (2,329)      (6,913)     (14,487)
         Decrease (increase) in inventories                                       2,826        2,186       (2,364)
         Decrease (increase) decrease in other assets                               (76)         795       (2,319)
         Increase (decrease) in accounts payable and
           other liabilities                                                      3,031      (20,559)      11,283
                                                                                 ------      --------      ------

         Cash used in operating activities                                       (2,653)     (15,180)     (15,503)
                                                                                 -------      -------      ------

Investing activities:
    Proceeds from sale of assets                                                 14,675           --           --
    Proceeds from sale of discontinued operations                                    --           --       31,579
    Purchase of property and equipment                                           (1,250)      (2,589)      (2,558)
    Investment in other assets                                                   (2,040)      (3,083)      (1,422)
                                                                                 -------      -------      -------

         Cash provided by (used in) investing activities                         11,385       (5,672)      27,599
                                                                                 ------       -------      ------

Financing activities:
    (Payments) proceeds from Senior Credit Facility                              (3,786)      24,526      (16,894)
    Proceeds from debt issuance                                                   1,800           --        3,278
    Increase (decrease) in book overdrafts                                        1,641       (4,838)       3,833
    Repayment of long-term debt                                                      --         (651)          --
    Retirement of Class B redeemable preferred stock                             (6,500)          --           --
    Repurchase of 410,000 shares of redeemable
      preferred stock                                                            (1,640)          --           --
    Payments under capital lease obligations                                       (426)        (379)        (267)     
                                                                                 -------      -------      -------
         Cash (used in) provided by  financing
         activities                                                             ( 8,911)      18,658      (10,050)
                                                                                --------      ------       ------

    (Decrease) increase in cash and cash equivalents                               (179)      (2,194)       2,046
    Cash and cash equivalents at beginning of the year                              587        2,781          735   
                                                                                  ------       -----        ----- 

    Cash and cash equivalents at end of year                                    $   408       $  587      $ 2,781
                                                                                  ======       =====       ======

Supplemental  disclosures  of cash flow  information:
  Cash paid during the year for:
    Interest                                                                    $ 5,228       $6,872      $ 5,760
                                                                                =======       ======       ======

    Income taxes                                                                  1,088       $   92      $   187
                                                                                =======       ======       ======
Supplemental schedule of non-cash investing activities:
    Assets under capital lease                                                  $    --       $  ---      $13,154
                                                                                =======       ======       ======


 The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>



<PAGE>
<TABLE>
<CAPTION>


                                                  TELOS CORPORATION AND SUBSIDIARIES
                               CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' INVESTMENT (DEFICIT)
                                                        (amounts in thousands)


                                                                                                         Total
                                                      Class A      Class B     Capital                 Stockholders'
                                                       Common       Common    In Excess  Accumulated   Investment
                                                        Stock       Stock      of Par      Deficit      (Deficit) 
                                                        -----        -----     ------      ---------    --------- 
<S>                                                      <C>        <C>        <C>         <C>           <C>            
Balance December 31, 1995                                $65         $13       $7,669      $(37,356)     $(29,609)


Senior redeemable preferred stock dividend                --         --             --         (334)         (334)
Class B redeemable preferred stock dividend               --         --             --         (835)         (835)
Redeemable preferred stock dividend                       --         --         (3,272)      (1,039)       (4,311)
Redeemable preferred stock accretion                      --         --         (1,270)          --        (1,270)
Issuance of Enterworks common stock warrants              --         --            921           --           921
Net income for the year                                   --         --             --        2,208         2,208
                                                          --         --          -----       ------        ------

Balance December 31, 1996                                 65         13          4,048      (37,356)      (33,230)


Senior redeemable preferred stock dividend                --         --           (379)          --          (379)
Class B redeemable preferred stock dividend               --         --           (948)          --          (948)
Redeemable preferred stock dividend                       --         --         (2,721)      (1,594)       (4,315)
Redeemable preferred stock accretion                      --         --             --       (1,406)       (1,406)
Issuance of Net income for the year                       --         --             --        1,412         1,412
                                                          --         --         ------       ------        ------

Balance December 31, 1997                                 65         13             --      (38,944)      (38,866)


Senior redeemable preferred stock dividend                --         --           (423)          --          (423)
Class B redeemable preferred stock dividend               --         --           (347)          --          (347)
Redeemable preferred stock dividend                       --         --         (4,068)          --        (4,068)
Redeemable preferred stock accretion                      --         --         (1,527)          --        (1,527)
Gain on retirement of Class B redeemable
  preferred stock                                         --         --          5,883           --         5,883
Repurchase of 410,000 shares of redeemable
  preferred stock                                         --         --          2,178           --         2,178
Issuance of Telos common stock warrants                   --         --            420           --           420
Net loss for the year                                     --         --             --       (9,171)       (9,171)
                                                          --         --         ------     ---------     ---------

Balance December 31, 1998                                $65        $13        $ 2,116     $(48,115)    $ (45,921)
                                                          ==         ==         ======      ========     =========
























       The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>



<PAGE>
                               TELOS CORPORATION AND SUBSIDIARIES
                           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1.       Summary of Significant Accounting Policies

Business and Organization

     Telos   Corporation   ("Telos"  or  "the  Company")   provides   enterprise
integration  services and solutions primarily to the U.S. federal government and
industry. In addition to its core competency of software development and systems
support services,  Telos delivers information security,  enterprise  integration
and networking  infrastructure  solutions to its customers. The Company, founded
in 1968, is incorporated under the laws of the State of Maryland.

     The accompanying  consolidated financial statements have been prepared on a
going  concern  basis,   which   contemplates  the  realization  of  assets  and
satisfaction  of  liabilities  in the normal  course of  business.  However,  as
reflected in the accompanying  financial statements,  the Company incurred a net
loss of $9.2  million in 1998.  This loss  included the effect of a $5.7 million
non-recurring gain from the sale of its TIS division.  In addition,  the Company
was not in  compliance  with several  covenants of its Senior  Credit  Facility,
although the lender has provided  waivers for the violations and has amended the
covenants to conform to the  Company's  1999 budget  expectations.  Based on its
budget,  the  Company  anticipates  a need  for  approximately  $10  million  of
additional  financing  for  1999.  These  factors,   including  the  uncertainty
surrounding  whether  and when the  additional  financing  will be  secured  and
whether the Company  will meet its budget  expectations  and bank  covenants  in
1999, indicate that the Company may be unable to continue as a going concern for
a  reasonable  period of time.  The  financial  statements  do not  include  any
adjustments  relating  to the  recoverability  of assets and  classification  of
liabilities  that might be necessary should the Company be unable to continue as
a going concern.  The Company's  continuation as a going concern is dependent on
its ability to obtain the additional financing required,  meet its 1999 budgeted
cash flow objectives, and comply with the terms of its Senior Credit Facility.

     The  Company  believes  that the  necessary  additional  financing  will be
secured through one or more of the following sources:  the sale of a division or
asset which is not critical to its strategic  goals;  additional  financing from
its lender;  or additional  equity  financing.  Alternatives are currently being
pursued under each of these sources; however, the required financing has not yet
been secured.  The Company  believes the required  funding will be arranged in a
timely manner that does not have a significant adverse impact on its operations.
However,  there  can be no  assurance  that the  Company  will be able to secure
financing  sufficient  for its  needs  and at terms  favorable  to the  Company.
Additionally,  there can be no assurance  that the Company will be successful in
meeting budget  expectations and bank covenants in 1999.  Failure by the Company
to obtain sufficient financing,  meet its budget expectations,  or meet its bank
covenants  may  have  a  material  adverse  effect  on the  Company's  financial
position, results of operations or cash flows.

Principles of Consolidation

     The accompanying  consolidated financial statements include the accounts of
Telos   Corporation  and  its  wholly-owned   subsidiaries,   Telos  Corporation
(California),   Telos  Field   Engineering,   Inc.,   and  Telos   International
Corporation,  and its substantially owned subsidiary Enterworks, Inc., formerly,
enterWorks.com   ("Enterworks")  (collectively,   the  "Company").   Significant
intercompany transactions have been eliminated.

Use of Estimates

     The  preparation  of financial  statements  in  conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect the  reported  amounts of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements,  and the  reported  amounts  of  revenues  and  expenses  during the
reporting period.  Significant estimates and assumptions used in the preparation
of the Company's  consolidated  financial statements include contract percentage
of  completion  methodology,  allowance for accounts  receivable,  allowance for
inventory  obsolescence,  valuation of goodwill,  the  valuation  allowance  for
deferred tax assets,  employee  benefits and estimated useful lives of goodwill,
property  and  equipment  and  other  noncurrent   assets,   including  software
development costs. Actual results could differ from those estimates.
<PAGE>
                           TELOS CORPORATION AND SUBSIDIARIES
                      NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Revenue Recognition

     The majority of the Company's  sales are made directly or indirectly to the
federal government.  A substantial portion of the Company's revenues are derived
from time and materials and cost reimbursement contracts, under which revenue is
recognized  as  services  are  performed  and costs are  incurred.  The  Company
generally recognizes equipment revenue as products are shipped, although certain
revenue  recognition  practices are dependent upon contract  terms.  Revenue for
maintenance contracts is recognized as such services are performed. The Company
records loss provisions for its contracts,  if required, at the time such losses
are identified.

     Revenue from the licensing of software is  recognized  in  accordance  with
American Institute of Certified Public Accountants (AICPA) Statement of Position
97-2 (SOP 97-2),"Software  Revenue  Recognition",  whereby revenue is recognized
when a noncancelable revenue agreement is in force, the product has been shipped
and no significant  obligations remain.  Revenue generated from warranty service
contracts is recognized  ratably over the warranty  service period. 

Cash and Cash Equivalents

     The  Company  considers  all highly  liquid  investments  with an  original
maturity of three months or less at the date of purchase to be cash equivalents.
The  Company's  cash  management   program   utilizes  zero  balance   accounts.
Accordingly,  all book  overdraft  balances have been  reclassified  to accounts
payable.
<PAGE>


                         TELOS  CORPORATION  AND  SUBSIDIARIES 
                       NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Inventories

     Inventories  are  stated  at the  lower  of  cost  or  market,  cost  being
determined  primarily  on the  first-in,  first-out  method.  Substantially  all
inventories  consist of purchased  hardware and component computer parts used in
connection  with  system   integration   services   performed  by  the  Company.
Inventories  also include spare parts of $729,000 and $1,329,000 at December 31,
1998  and  1997,  respectively,   which  are  utilized  to  support  maintenance
contracts. Spare parts inventory is amortized on a straight line basis over five
years.  An allowance  for  obsolete,  slow-moving  or  non-salable  inventory is
provided  for all other  inventory.  This  allowance  is based on the  Company's
overall   obsolescence   experience  and  its  assessment  of  future  inventory
requirements.  In addition to the product inventory  obsolescence  stated below,
the Company provided for $50,000 in spares  inventory  obsolescence and $114,000
in software inventory obsolescence.

     At  December  31,  1998 and  1997,  the  Company's  allowance  for  product
inventory  obsolescence  was  $3,074,000  and  $3,915,000,   respectively.   The
components of the allowance for inventory  obsolescence  are set forth below (in
thousands):
<TABLE>
<CAPTION>
                                                                  Additions
                                                  Balance,       Charged to                              Balance,
                                                  Beginning      Costs and                                End
                                                   of Year         Expense       Deductions(1)           of Year
                                                   -------         -------       -------------           -------

<S>                                               <C>             <C>                <C>                  <C>    
Year Ended December 31, 1998                      $ 3,915         $ 1,090            $  1,931             $ 3,074

Year Ended December 31, 1997                      $ 2,357         $ 2,150            $    592             $ 3,915

Year Ended December 31, 1996                      $ 1,385         $ 1,008            $     36             $ 2,357

(1) Inventories written off.
</TABLE>


Property and Equipment

     Property and equipment is recorded at cost. Depreciation is provided on the
straight-line  method  at  rates  based  on the  estimated  useful  lives of the
individual assets or classes of assets as follows:

         Buildings                                                 20      Years
         Machinery and equipment                                   3-7     Years
         Office furniture and fixtures                             5-7     Years
         Leasehold improvements                                    Life of Lease

     Leased  property  meeting  certain  criteria is  capitalized at the present
value of the related  minimum  lease  payments.  Amortization  of  property  and
equipment under capital leases is computed on the straight-line  method over the
term of the related lease.

     Upon sale or  retirement of property and  equipment,  the costs and related
accumulated  depreciation are eliminated from the accounts, and any gain or loss
on such  disposition is reflected in the statement of  operations.  Expenditures
for repairs and maintenance are charged to operations as incurred.

     Depreciation  and  amortization  expense related to property and equipment,
including   property  and  equipment  under  capital  leases,   was  $2,460,000,
$2,630,000 and $2,255,000 for the years ended December 31, 1998,  1997 and 1996,
respectively.

Goodwill

     Goodwill  arose  principally  from the  acquisition  of  Telos  Corporation
(California)  in 1992 and has been assigned a useful life of twenty  years.  The
useful life considered a number of factors  including the Company's  maintenance
of  long-term   significant   customer   relationships  for  periods  of  up  to
twenty-seven years and its strong positions in the marketplace.

<PAGE>


                        TELOS CORPORATION AND SUBSIDIARIES
                    NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

     The  Company  assesses  the  potential  impairment  and  recoverability  of
goodwill on an annual basis and more frequently if factors  dictate.  Management
forecasts  are used to evaluate  the  recovery of goodwill  through  determining
whether amortization of goodwill can be recovered through projected undiscounted
future cash flows. If an impairment of goodwill is indicated,  the impairment is
measured  based  on  projected  discounted  cash  flows  using a  discount  rate
reflecting the Company's cost of funds. In addition,  the Company may assess the
net carrying amount of goodwill using internal and/or independent  valuations of
the Company.

     Accumulated  amortization  of goodwill  at  December  31, 1998 and 1997 was
$8,955,000 and $8,366,000, respectively.

Other Assets

     Other   noncurrent   assets  consist   principally  of  deferred   software
development costs and debt issuance costs. The Company expenses all research and
development  costs  incurred in connection  with software  development  projects
until such software achieves technological feasibility,  determined based on the
achievement  of a working  model.  All costs  thereafter  are  capitalized.  The
Company amortizes such capitalized costs on a product-by-product  basis over the
greater of the amount  computed using an estimated  product life of two years or
the  ratio  that  current  gross  revenues  bears to the  total of  current  and
anticipated  future  gross  revenues.  The Company  periodically  evaluates  the
realizability  of these  capitalized  costs through  evaluation  of  anticipated
revenue and gross margin as compared to current revenue and gross margin. At the
time a determination is made that capitalized  amounts are not recoverable based
on the  estimated  cash  flows  to be  generated  from the  applicable  software
product, a loss is recognized.

     Unamortized  software and product  costs at December 31, 1998 and 1997 were
$1.9 million and $3.6 million,  respectively.  Amortization  expense  associated
with these capitalized software and product costs was $2,044,000, $1,128,000 and
$689,000 in 1998,  1997 and 1996,  respectively.  Additionally,  $1,743,000  and
$887,000  were written off as net  realizable  value  adjustments  in the fourth
quarter of 1998 and in the fourth quarter of 1997, respectively.
<PAGE>


                          TELOS CORPORATION AND SUBSIDIARIES
                       NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

     Debt issuance costs are amortized over the term of the underlying financial
instrument,  which  amortization  method does not differ  significantly from the
effective  interest method.  Unamortized costs amounted to $425,000 and $668,000
at December 31, 1998 and 1997, respectively.

Income Taxes

     The  Company  accounts  for  income  taxes  under  Statement  of  Financial
Accounting  Standards (SFAS) No. 109,  "Accounting for Income Taxes". Under this
asset and liability  method,  deferred tax assets and liabilities are recognized
for the estimated  future tax  consequences of temporary  differences and income
tax  credits.  Deferred  tax assets and  liabilities  are  measured  by applying
enacted  statutory  tax rates that are  applicable  to the future years in which
deferred tax assets or liabilities are expected to be settled or realized to the
differences  between the financial  statement carrying amounts and the tax bases
of existing  assets and  liabilities.  Any change in tax rates on  deferred  tax
assets and  liabilities  is  recognized in net income in the period in which the
tax rate change is  enacted.  The Company  provides a valuation  allowance  that
reduces  deferred tax assets when it is "more likely than not" that deferred tax
assets will not be realized.

Accounting for Stock Based Compensation

     The Company accounts for stock-based compensation using the intrinsic value
method  provided  by  Accounting   Principles  Board  ("APB")  Opinion  No.  25,
"Accounting for Stock Issued to Employees." Pro forma disclosures are made as if
the  fair  value  measurement  provisions  of  SFAS  No.  123 had  been  used in
determining compensation expense (See Note 7).

Research and Development

     The  Company  charges  all  research  and  development  costs to expense as
incurred,  until,  as in the  case of  software,  technological  feasibility  is
reached after which time such costs are capitalized. During 1998, 1997 and 1996,
the Company incurred $6.1 million, $1.0 million and $1.2 million in research and
development costs, respectively.

Earnings per Share

     In February 1997, the Financial  Accounting  Standards  Board (FASB) issued
SFAS No. 128,  "Earnings per Share." This  Statement  establishes  standards for
computing and presenting  earnings per share (EPS). As the Company does not have
publicly  held common stock or potential  common  stock,  this  Statement is not
applicable  and,  accordingly,  no EPS  data is  reported  for any of the  years
presented.

Financial Instruments

     The Company uses various methods and assumptions to estimate the fair value
of its financial instruments. Due to their short-term nature, the carrying value
of cash and cash equivalents,  accounts receivable, accounts payable and accrued
expenses  approximates  fair value. The fair value of long-term debt is based on
the discounted cash flows for similar term borrowings based on market prices for
the same or similar issues.  The Company has not estimated the fair value of its
subordinated  debt or its redeemable  preferred stock. The Company does not deem
such estimation practicable due to the unique features of these instruments.

     Fair  value  estimates  are made at a  specific  point  in  time,  based on
relevant  market  information.  These  estimates  are  subjective  in nature and
involve  matters of judgment and therefore  cannot be determined with precision.
Changes in assumptions could significantly affect the estimates.

Reclassifications

     Certain  reclassifications  have been  made to the 1997 and 1996  financial
statements to conform to the current period presentation.

<PAGE>
                            TELOS CORPORATION AND SUBSIDIARIES
                        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Recent Accounting Pronouncements

     In March 1998,  the  American  Institute of  Certified  Public  Accountants
issued  Statement of Position  98-1 ("SOP 98-1"),  "Accounting  for the Costs of
Computer  Software  Developed  or  Obtained  for  Internal  Use." This  standard
requires  companies to capitalize  qualifying  computer software costs which are
incurred  during the  application  development  stage and amortize them over the
software's  estimated  useful  life.  SOP 98-1 is  effective  for  fiscal  years
beginning  after  December 15, 1998.  The Company is  currently  evaluating  the
impact of SOP 98-1 on its financial statements and related disclosures.

     In November 1998, the American  Institute of Certified  Public  Accountants
issued  Statement  of Position  98-9 ("SOP  98-9"),  "Modification  of SOP 97-2,
"Software  Revenue  Recognition",  with  Respect to Certain  Transactions".  The
Company  is  currently  evaluating  the  impact  of SOP  98-9  on its  financial
statements and related disclosures.

Note 2.  Sale of Assets

     In February 1998, Telos sold  substantially all of the net assets of one of
its support services  divisions,  Telos  Information  Systems ("TIS"),  to NYMA,
Inc.,  a subsidiary  of Federal Data  Corporation  of  Bethesda,  Maryland,  for
approximately  $14.7 million in cash. In connection  with this sale, the Company
has recorded a gain of $5.7 million in its consolidated  statement of income for
the year ended December 31, 1998,  which included a write-off of $4.9 million of
goodwill allocated to TIS operations.

Note 3.  Discontinued Operations

     On December 27, 1996, the Company sold  substantially  all of the assets of
its consulting  division,  Telos Consulting  Services (TCS), to COMSYS Technical
Services, Inc., a subsidiary of COREStaff, Inc. for approximately $31.6 million.
The resulting gain from the sale of TCS of $11.5 million included a write-off of
$6.9 million of goodwill allocated to the TCS operations.

     The sale of TCS has been treated as a discontinued  operation in accordance
with APB Opinion  Number 30 ("APB 30").  Pursuant to APB 30, the revenue,  costs
and expenses of TCS have been  excluded  from their  respective  captions in the
Company's  consolidated  statements of  operations  and the net results of these
operations  have been reported  separately as "Income  (loss) from  discontinued
operations." Included in the results of the discontinued operations is allocated
interest expense of $1.5 million for 1996.  Interest has been allocated based on
the net assets of the  discontinued  operations  in  relation  to the  Company's
consolidated  net  assets  plus  non-specific   debt.   Additionally,   goodwill
amortization  of  $418,000  for 1996 has been  included  in the  results  of the
discontinued operations. TCS had revenue of $33.1 million for 1996.

Note 4.  Revenue and Accounts Receivable

     Revenue resulting from contracts and subcontracts with federal,  state, and
local governments  accounted for 94.9%, 96.1% and 86.4% of consolidated  revenue
in 1998, 1997 and 1996,  respectively.  As the Company's primary customer is the
federal  government,  the Company has a concentration  of credit risk associated
with  its  accounts  receivable.  However,  the  Company  does not  believe  the
likelihood of loss arising from such  concentration is significant.  The Company
performs  ongoing  credit  evaluations  of its customers and generally  does not
require  collateral  from its customers.  The Company  maintains  allowances for
potential losses.
<TABLE>
<CAPTION>

      The components of accounts receivable are as follows (in thousands):

                                                                                      December 31,         
                                                                                      ------------         
                                                                                 1998                1997
                                                                                 ----                ----
<S>                                                                             <C>                <C>                      
Billed accounts receivable                                                      $48,222            $ 48,207
                                                                                 ------              ------

    Amounts billable upon acceptance by customer                                  1,422               4,485
    Amounts currently billable                                                    7,878               6,244
                                                                                 ------              ------

    Total unbilled accounts receivable                                            9,300              10,729
                                                                                 ------              ------

    Allowance for doubtful accounts                                                (739)               (964)
                                                                                 ------              ------
                                                                                $56,783            $ 57,972
                                                                                 ======              ======
</TABLE>


     The provision for doubtful  accounts  receivable was $39,000,  $490,000 and
$647,000 for 1998, 1997 and 1996, respectively. Reductions to the allowance were
primarily due to write-offs of accounts receivable and other adjustments.
<PAGE>
                            TELOS CORPORATION AND SUBSIDIARIES
                        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 5.  Debt Obligations

Senior Revolving Credit Facility

     At December 31, 1998, the Company has a $45 million Senior Revolving Credit
Facility (the  "Facility")  with a bank which expires on July 1, 2000 and has an
outstanding  balance  of  $36.2  million.  Borrowings  under  the  facility  are
collateralized by certain assets of the Company (primarily  accounts  receivable
and inventory),  and the amount of the available borrowings  fluctuates based on
the  underlying   asset  borrowing  base  and  the  Company's   working  capital
requirements.  The  agreement  requires  payment  of a fee of .25% of the unused
portion of the  Facility.  The  Facility  bears  interest  at 1.00%,  subject to
certain adjustments,  over the bank's base rate, which was 9.00% at December 31,
1998. The weighted average interest rate on the outstanding borrowings under the
Facility was 9.95% for 1998  compared with 9.44% for 1997. At December 31, 1998,
the Company had approximately $6.7 million available under the Facility.

     The Facility has various covenants which may, among other things,  restrict
the  ability of the  Company  to merge with  another  entity,  sell or  transfer
certain  assets,  pay  dividends  and make other  distributions  beyond  certain
limitations.  The Facility also  requires the Company to meet certain  leverage,
net worth, interest  coverage and  operating  goals.  At December 31, 1998,  the
Company was not in compliance with several covenants  contained in the Facility;
however,  the bank has waived this  non-compliance.  In  addition,  the bank has
amended the covenants to conform to the Company's 1999 budget expectations.

         The  carrying  value of the  Facility  at  December  31,  1998 and 1997
approximates fair value.

Senior Subordinated Notes

     In 1995 the Company issued Senior  Subordinated  Notes ("Notes") to certain
shareholders.  The Notes are classified as either Series B or Series C. Series B
Notes,   which  total  $6.5  million  at  December   31,  1998  and  1997,   are
collateralized by fixed assets of the Company.  Series C Notes, which total $7.9
million at December  31,  1998 and 1997,  are  unsecured.  Both the Series B and
Series C Notes have a maturity date of October 1, 2000 and have  interest  rates
ranging from 14% to 17%.  Interest is paid quarterly on January 1, April 1, July
1, and October 1 of each year. The Notes can be prepaid at the Company's option.
Additionally,  these Notes have a cumulative  payment premium of 13.5% per annum
payable only upon certain circumstances.  These circumstances include an initial
public offering of the Company's common stock or a significant  refinancing,  to
the extent that net  proceeds  from either of the above  events are received and
are sufficient to pay the premium.  Due to the contingent  nature of the premium
payment,  the  associated  premium  expense  will  only be  recorded  after  the
occurrence of a triggering  event. At December 31, 1998, the prepayment  premium
that would be due upon a triggering event is $7,620,000.

     In November 1998, the Company issued additional Senior  Subordinated  Notes
to certain  shareholders  which are  classified  as Series D. The Series D Notes
total $1.8 million and are unsecured. The Series D Notes have a maturity date of
October 1, 2000 and bear interest at 14% per annum.  Interest is paid  quarterly
on  January 1,  April 1, July 1, and  October 1 of each  year.  The notes can be
prepaid at the Company's  option.  These Notes contain the same payment  premium
provisions as the Series B and Series C Notes (see above).  In  connection  with
the debt,  the Company  issued  1,500,000  warrants  to  purchase  shares of the
Company's Class A Common Stock.  The warrants have an exercise price of $.01 and
an  exercise  period of 22  months.  The  Company  has  assigned  a value to the
warrants of $420,000  which has been  included in capital in excess of par.  The
amount  outstanding of the  subordinated  debt was  approximately  $1,396,000 at
December 31, 1998.

Enterworks Subordinated Notes

     During 1996, the Company completed a private  financing whereby  $3,277,960
of 8% subordinated  debt of Enterworks was issued.  Investors  included  certain
members of the Board of Directors and management and certain shareholders of the
Company.  The  subordinated  debt has a five  year  maturity.  Interest  is paid
quarterly,  beginning  January 1 1998, on the first of January,  April, July and
October each year. In connection  with the debt,  the Company  issued  2,048,725
warrants to purchase  shares of Enterworks  common  stock.  The warrants have an
exercise  price of one dollar and an exercise  period of ten years.  The Company
has  assigned a value to the  warrants  of $921,926  which has been  included in
capital in excess of par. The amount  outstanding of this  subordinated debt was
approximately   $2,723,000  and  $2,557,000  at  December  31,  1998  and  1997,
respectively.


<PAGE>


                       TELOS CORPORATION AND SUBSIDIARIES
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 6.  Redeemable Preferred Stock

Senior Redeemable Preferred Stock

     The components of the senior redeemable  preferred stock are Series A-1 and
Series  A-2,  each with $.01 par  value and 1,250 and 1,750  shares  authorized,
issued  and  outstanding,  respectively.  The  Series A-1 and Series A-2 carry a
cumulative  per annum  dividend  rate of 14.125% per annum of their  liquidation
value of $1,000 per share.  The dividends are payable  semi-annually  on June 30
and December 31 of each year. The liquidation  preference of the preferred stock
is the face amount of the Series A-1 and A-2 Stock ($1,000 per share),  plus all
accrued  and unpaid  dividends.  The  Company is  required  to redeem all of the
outstanding  shares of the stock on  December  31,  2001,  subject  to the legal
availability  of funds.  Mandatory  redemptions  are  required  from excess cash
flows,  as defined in the stock  agreements.  The Series A-1 and A-2  redeemable
preferred stock is senior to all other present and future equity of the Company.
The  Series  A-1 is senior to the  Series  A-2.  The  Company  has not  declared
dividends  on its senior  redeemable  preferred  stock  since its  issuance.  At
December 31, 1998 and 1997 undeclared,  unpaid dividends  relating to Series A-1
and  A-2  redeemable   preferred   stock  totaled   $2,631,000  and  $2,207,000,
respectively,  and have been  accrued and are included in the Series A-1 and A-2
redeemable preferred stock balances.

Class B Redeemable Preferred Stock

     In May  1998  the  Company  entered  into  an  agreement,  with  one of its
shareholders,  Union de Banques Suisses  (Luxemborg) S.A. ("UBS"), to retire all
of UBS's equity holdings in the Company.  These equity holdings  included all of
the 7,500 shares of the  Company's  Class B Preferred  Stock with a  liquidation
preference  of  $1,000  per  share,  and  the  cumulative  unpaid  dividends  of
approximately  $4.8 million,  1,837,773  shares of the Company's  Class A Common
Stock,  and  1,312,695  of the  Company's  Class A Common  Stock  warrants.  The
purchase price to retire these  interests was $6.5 million,  of which $5 million
was paid in cash,  and the  remaining  $1.5  million was funded by two  separate
letters of credit secured by the Company's lender. UBS was paid these letters of
credit in the  amount of $1.0  million  in  September  1998 and in the amount of
$500,000 in November 1998.

     The $5.9 million  excess of the  carrying  amount of the Class B Redeemable
Preferred Stock over the redemption price was recorded as an increase in capital
in excess of par; there was no impact on income from this transaction.

<PAGE>


                     TELOS CORPORATION AND SUBSIDIARIES
                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


12% Cumulative Exchangeable Redeemable Preferred Stock

     A maximum of 6,000,000  shares of 12%  Cumulative  Exchangeable  Redeemable
Preferred Stock, par value $.01 per share, has been authorized for issuance.

     The  Company   initially   issued   2,858,723   shares  of  12%  Cumulative
Exchangeable  Redeemable Preferred Stock (the "Public Preferred Stock") pursuant
to the acquisition of the Company during fiscal year 1990. The Public  Preferred
Stock was  recorded at fair value on the date of original  issue,  November  21,
1989, and the Company is making periodic accretions under the interest method of
the excess of the redemption  value over the recorded  value.  Accretion for the
years  ended  December  31,  1998  and  1997  was  $1,528,000  and   $1,406,000,
respectively.  The Company  declared stock dividends  totaling 736,863 shares in
1990 and 1991.

     The Public  Preferred  Stock has a 20 year maturity,  however,  the Company
must redeem, out of funds legally  available,  20% of the Public Preferred Stock
on the 16th, 17th, 18th and 19th anniversaries of November 21, 1989, leaving 20%
to be redeemed at  maturity.  On any dividend  payment  date after  November 21,
1991, the Company may exchange the Public  Preferred Stock, in whole or in part,
for  12%  Junior   Subordinated   Debentures  that  are  redeemable  upon  terms
substantially  similar to the Public  Preferred  Stock and  subordinated  to all
indebtedness for borrowed money and like obligations of the Company.

     The Public Preferred Stock accrues a semi-annual dividend at an annual rate
of 12% ($1.20) per share, based on the liquidation  preference of $10 per share,
and is fully  cumulative.  Through November 21, 1995, the Company had the option
to pay  dividends  in  additional  shares  of  Preferred  Stock in lieu of cash.
Dividends in additional  shares of the  Preferred  Stock are paid at the rate of
0.06 of a share of the Preferred  Stock for each $.60 of such dividends not paid
in cash. Dividends are payable by the Company,  provided the Company has legally
available  funds  under  Maryland  law,  when and if  declared  by the  Board of
Directors,  commencing June 1, 1990, and on each six month anniversary  thereof.
For the years 1992 through 1994 and for the dividend  payable June 1, 1995,  the
Company has accrued  undeclared  dividends  in  additional  shares of  preferred
stock. These accrued dividends are valued at $3,950,000. Had the Company accrued
such  dividends  on a cash  basis,  the total  amount  accrued  would  have been
$15,101,000.For  the cash dividends  payable since December 1, 1995, the Company
has accrued $14,855,000.

     The  Company  has  not  declared  or  paid  dividends  since  1991,  due to
restrictions  and  ambiguities  relating to the payment of  dividends  contained
within its charter,  its working capital facility agreement,  and under Maryland
law.

     In  November  1998,  the  Company  retired  410,000  shares  of the  Public
Preferred Stock held by certain shareholders.  The Company repurchased the stock
at $4.00 per share. The carrying value of these shares was $3.8 million, and the
$2.2 million excess of the carrying  amount of these shares of Public  Preferred
Stock over the  redemption  price of $1.6 million was recorded as an increase in
capital in excess of par; there was no impact on income from this transaction.
<PAGE>


                      TELOS CORPORATION AND SUBSIDIARIES
                 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 7.  Stockholders' Investment and Employee Benefit Plans

Common Stock

     The relative  rights,  preferences,  and  limitations of the Class A common
stock and the Class B common stock are in all respects identical. The holders of
the common stock have one vote for each share of common  stock held.  Subject to
the prior  rights of the  Public  Preferred  Stock or any series of the Series A
redeemable  preferred stock, holders of Class A and the Class B common stock are
entitled to receive such dividends as may be declared.

Stock Warrants

     In 1992,  the  Company  issued  to the  holder  of the  Class B  Redeemable
Preferred  Stock a common stock  warrant to purchase up to  3,150,468  shares of
Class A common stock of the Company.  The stock warrant was valued at $1,109,000
and such  amount  was shown as an  increase  in  capital  in excess of par.  The
warrant was  initially  exercisable  to purchase up to  1,181,425  shares at any
time. The warrant  increased by 656,348 shares on June 30, 1993 and July 1, 1994
and by 656,347  shares on July 1, 1995.  Through  December 31,  1997,  1,837,773
shares of Class A Common Stock has been purchased  under the warrant.  The price
per share at which  shares  have been  purchased  and are  purchasable  upon the
exercise  of the  warrant  is  $.0025.  In May 1998,  the  Company  retired  the
remaining  1,312,695  Class A common  stock  warrants  held by the holder of the
Class B Redeemable preferred stock (See Note 6).

     In 1994, Toxford  Corporation  deposited $3 million with the Company's bank
to provide the Company with increased  borrowing  capability  under its Facility
(see Note 5). In exchange,  Toxford  Corporation  was issued  500,000  shares of
Class A common stock for which the Company recorded  additional interest expense
of $410,000.  The Company also granted Toxford  Corporation  warrants to acquire
7,228,916  shares of the Company's  Class A common stock at a purchase  price of
$.83 per share which  approximated  the estimated  market value of the Company's
common stock at the issuance date. In November  1998,  840,000 of these warrants
were  transferred to certain other  shareholders of the Company.  The warrant is
fully exercisable and has a term of ten years from the date of issue.

Stock Options

     The Company has granted stock  options to certain  employees of the Company
under four plans. The Long-Term Incentive Compensation Plan was adopted in 1990
("1990 Stock Option Plan") and had option grants under it through 1993. In 1993,
stock option plan agreements were reached with certain  employees.  In 1996, the
Board of Directors approved and the shareholders  ratified the 1996 Stock Option
Plan ("1996 Stock Option Plan").  The Company also approved an Enterworks  stock
option plan ("1996 Enterworks Option Plan") during 1996.

     The Company  generally  grants  options under its  respective  plans at the
estimated  fair  value at the date of grant.  Fair  value is  determined  by the
Trustees  of the  Plan  or  management  based  on  third  party  appraisals  and
information with respect to the business operations.

<PAGE>


                       TELOS CORPORATION AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1990 Stock Option Plan

     Under the terms of the 1990  Stock  Option  Plan,  2,168,215  shares of the
Company's  Class A common stock are available for issuance  under options to key
employees, including officers and directors. The option price of $1.42 and $1.07
per  share,  determined  by the Board of  Directors,  was not less than the fair
market value at the date of the grant and the options are generally  exercisable
over a four  year  period.  Additional  information  as to these  options  is as
follows:
<TABLE>
<CAPTION>

                                                                    Stock Option Activity             
                                                         ---------------------------------------------
                                                         Number of Shares             Weighted Average
                                                              (000's)                  Exercise Price 
                                                              -------                  --------------
<S>                                                           <C>                          <C>    
Outstanding at December 31, 1995                                598                        $1.42

    Granted                                                      --                           --
    Exercised                                                    --                           --
    Canceled                                                    (13)                        1.42
                                                              ------                       -----
Outstanding at December 31, 1996                                585                        $1.42

    Granted                                                      --                           --
    Exercised                                                    --                           --
    Canceled                                                    (55)                        1.42
                                                              ------                       -----
Outstanding at December 31, 1997                                530                        $1.42

    Granted                                                   1,495                         1.07
    Exercised                                                    --                           --
    Canceled                                                    (85)                        1.42
                                                              ------                       -----
Outstanding at December 31, 1998                              1,940                        $1.27                     
                                                              ======                       =====                   
</TABLE>


1996 Stock Option Plan

     The 1996 Stock Option Plan allows for the award of up to  6,644,974  shares
of Class A common stock at an exercise price of not lower than fair market value
at the date of grant.  Vesting of the stock  options for key  employees is based
both upon the  passage of time and  certain key events  occurring  including  an
initial public  offering or a change in control.  Vesting for options granted to
employees  is based upon the passage of time,  generally  four years.  The stock
options  may be  exercised  over  a ten  year  period  subject  to  the  vesting
requirements. Additional information as to these options follows:
<TABLE>
<CAPTION>

                                                                    Stock Option Activity             
                                                         ---------------------------------------------
                                                         Number of Shares             Weighted Average
                                                              (000's)                  Exercise Price 
                                                              -------                  -------------- 
<S>                                                           <C>                           <C>    
Outstanding at December 31, 1995                                 --                           --

    Granted                                                   3,767                         0.95
    Exercised                                                    --                           --
    Canceled                                                   ( 29)                        0.97
                                                              ------                        ----
Outstanding at December 31, 1996                              3,738                        $0.95

    Granted                                                     772                         1.01
    Exercised                                                    --                           --
    Canceled                                                   (259)                        0.97
                                                              ------                        ----
Outstanding at December 31, 1997                              4,251                        $0.96

    Granted                                                   1,447                         1.07
    Exercised                                                    --                           --
    Canceled                                                   (143)                        0.98
                                                              ------                        ----
Outstanding at December 31, 1998                              5,555                        $0.99
                                                              ======                       =====
</TABLE>




<PAGE>


                           TELOS CORPORATION AND SUBSIDIARIES
                        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Other Option Plans

     In 1993,  stock  option plan  agreements  were  reached to provide Mr. John
Wood, CEO and President, and Mr. Joseph Beninati,  former Chairman, with options
to each purchase up to 700,459 shares of the Company's Class A common stock from
the  Company  at $0.50 per  share.  Under the terms of the  agreements,  350,230
shares vested  immediately and the remainder vested ratably over the next twelve
months. The Company recorded compensation expense related to these options based
upon the  difference  between the exercise price and the estimated fair value of
$0.82 per share at the  measurement  date of the stock  option.  Mr.  Beninati's
agreement was canceled in 1996 and the shares now available will be administered
under the same terms as the 1996 Stock Option Plan. Additional information as to
these options follows:
<TABLE>
<CAPTION>


                                                                   Stock Option Activity             
                                                         ---------------------------------------------
                                                         Number of Shares             Weighted Average
                                                              (000's)                  Exercise Price 
                                                              -------                  -------------- 
<S>                                                           <C>                            <C>    
Outstanding at December 31, 1995                              1,401                          $0.50

    Granted                                                      --                             --
    Exercised                                                    --                             --
    Canceled                                                     --                             --
                                                              -----                          -----
Outstanding at December 31, 1996                              1,401                          $0.50

    Granted                                                     653                           1.01
    Exercised                                                    --                             --
    Canceled                                                   (700)                          0.50
                                                              -----                          -----
Outstanding at December 31, 1997                              1,354                          $0.75

    Granted                                                      --                             --
    Exercised                                                    --                             --
    Canceled                                                     --                             --
                                                              -----                          -----
Outstanding at December 31, 1998                              1,354                          $0.75
                                                              =====                          =====

</TABLE>

     John Wood has the option to cancel the 1993 stock options  discussed  above
or receive an equal number of options  under the 1996 plan at an exercise  price
of $0.95 per share. Additionally, the effect on the 1996 stock option plan as of
December  31,  1998 would be to  increase  the number of shares  outstanding  to
6,255,000 with a weighted average exercise price of $.98 per share.

1996 Enterworks Option Plan

     In 1996,  Enterworks  implemented  a stock  option plan that allows for the
award of up to  5,000,000  shares of common  stock at an  exercise  price of not
lower than fair market value at the date of grant.  Vesting of the stock options
for key  employees is based both upon the passage of time and certain key events
occurring  including an initial public offering or a change in control.  Vesting
for options  granted to employees  is based upon the passage of time,  generally
four years. The stock options may be exercised over a ten year period subject to
the vesting requirements.

<PAGE>


                             TELOS CORPORATION AND SUBSIDIARIES
                        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Additional information as to these options follows:
<TABLE>
<CAPTION>

                                                                    Stock Option Activity             
                                                         ---------------------------------------------
                                                         Number of Shares             Weighted Average
                                                              (000's)                  Exercise Price
                                                         ----------------             ----------------     
<S>                                                           <C>                            <C>    
Outstanding at December 31, 1995                                 --                             --
    Granted                                                   2,744                          $0.22
    Exercised                                                    --                             --
    Canceled                                                    (15)                          0.12
                                                              -----                           ----
Outstanding at December 31, 1996                              2,729                           0.22

    Granted                                                     998                           0.77
    Exercised                                                  (163)                          0.12
    Canceled                                                   (462)                          0.39
                                                              -----                           ----

Outstanding at December 31, 1997                              3,102                          $0.38

    Granted                                                   1,814                           0.77
    Exercised                                                   (16)                          0.12
    Canceled                                                 (1,150)                          0.46
                                                              -----                          -----
Outstanding at December 31, 1998                              3,750                          $0.55
                                                             ======                          =====
</TABLE>


     The following table summarizes  information about stock options outstanding
and exercisable at December 31, 1998:
<TABLE>
<CAPTION>

                                                      Options Outstanding               Options Exercisable
                                                      -------------------               -------------------

                                                            Weighted
                                                            Average       Weighted                     Weighted
                            Range of        Number         Remaining       Average        Number        Average
                            Exercise      Outstanding      Contractual     Exercise     Exercisable     Exercise
                             Prices         (000's)       Life in Years     Price         (000's)        Price
                             ------         -------       -------------     -----         -------        -----
<S>                     <C>                  <C>            <C>             <C>            <C>           <C>
1990 Stock                   $1.07           1,495          9.4 years       $1.07            299         $1.07
  Option Plan                $1.42             445          2.0 years        1.42            445         $1.42
                              ----           -----          ---------        ----            ---         -----
                        $1.07 - $1.42        1,940          7.7 years       $1.27            744         $1.28
                        =============        =====          =========        ====            ===         =====

Other Stock
  Option Plan                $0.50             701          5.0 years       $0.50            700         $0.50
                             $1.07             653          8.1 years       $1.07            261         $1.07
                             -----             ---          ---------       -----            ---         -----
                         $0.50 -$1.07        1,354          6.5 years       $0.75            961         $0.65
                         ============        =====          =========       =====            ===         =====

1996 Stock
  Option Plan                 $.95           3,320          7.4 years       $0.95          1,712         $0.95
                              0.97             113          7.6 years        0.97             68          0.97
                              1.01             645          8.2 years        1.01            258          1.01
                              1.07           1,477          9.4 years        1.07            295          1.07
                              ----           -----          ---------        ----          -----          ----
                        $0.95 - $1.07        5,555          8.0 years       $0.99          2,333         $0.97
                        =============        =====          =========       =====          =====         =====

1996 Enterworks
   Option Plan               $0.12           1,309          7.5 years       $0.12            621         $0.12
                              0.77           2,441          9.1 years        0.77            300          0.77
                              ----           -----          ---------        ----            ---          ----
                        $0.12 - $0.77        3,750          8.6 years       $0.55            921         $0.33
                        =============        =====          =========       =====            ===         =====
</TABLE>


<PAGE>
                           TELOS CORPORATION AND SUBSIDIARIES
                        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

     The  weighted-average  fair value of options  granted  under the 1990 Stock
Option Plan,  the Other Stock Option Plan,  the 1996 Stock Option Plan,  and the
1996  Enterworks  Option  Plan  was  $0.26,  $0,  $0.25  and  $0.19  per  share,
respectively, in 1998 and $0, $0.23, $0.28 and $0.22 per share, respectively, in
1997. Had the Company determined  compensation cost consistent with SFAS No. 123
methodology,  net (loss)  income would have been  ($9,666,000),  $1,073,000  and
$2,100,000 in 1998, 1997 and 1996, respectively. Significant assumptions used in
determining  the fair  value of each  option  grant at the date of grant were as
follows:
<TABLE>
<CAPTION>

                                             1990 Stock                               Other Stock
                                             Option Plan                              Option Plan
                                        -------------------------        --------------------------------

                                        1998      1997       1996         1998        1997           1996
                                        --------------------------       --------------------------------
<S>                                     <C>        <C>        <C>        <C>           <C>          <C>
Expected dividend yield                 0.0%       0.0%       0.0%       0.0%          0.0%         0.0%
Expected stock price volatility         0.0%       0.0%       0.0%       0.0%          0.0%         0.0%
Risk free interest rate                 5.54%        --         --         --          6.28%          --
Expected life of options                5.3 yrs      --         --         --          4.0 yrs        --
</TABLE>
<TABLE>
<CAPTION>



                                             1996 Stock                             1996 Enterworks
                                             Option Plan                              Option Plan
                                        --------------------------        --------------------------------
                                        1998      1997       1996         1998        1997           1996
                                        --------------------------        --------------------------------
<S>                                     <C>       <C>          <C>        <C>           <C>          <C>
Expected dividend yield                 0.00%     0.00%        0.00%      0.00%         0.00%        0.00%
Expected stock price volatility         0.00%     0.00%        0.00%      0.00%         0.00%        0.00%
Risk free interest rate                 5.54%     6.28%        6.66%      5.18%         6.00%        6.73%
Expected life of options                4.8 yrs   5.5 yrs      6.0 yrs    5.2 yrs       5.5 yrs      6.0 yrs

</TABLE>

     Because  the pro forma  disclosures  under SFAS No. 123 only apply to stock
options  granted in or after 1995, pro forma net income for 1996,  1997 and 1998
is not necessarily indicative of future periods.

Telos Shared Savings Plan

     The Company  sponsors a defined  contribution  employee  savings  plan (the
"Plan")  under which  substantially  all  full-time  employees  are  eligible to
participate. The Company matches one-half of voluntary participant contributions
to the  Plan  up to a  maximum  Company  contribution  of 3% of a  participant's
salary.  Total Company  contributions  to this Plan for 1998, 1997 and 1996 were
$835,000, $1,335,000, and $1,679,000, respectively.



<PAGE>


                      TELOS CORPORATION AND SUBSIDIARIES
                    NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


Note 8.       Income Taxes

     The  provision   (benefit)for  income  taxes  includes  the  following  (in
thousands):
<TABLE>
<CAPTION>


                                                                    For The Year Ended December 31,

                                                             ------------------------------------------
                                                             1998               1997               1996
                                                           -------            -------            --------
<S>                                                        <C>                <C>                <C>    
Current provision (benefit)
     Federal                                              $   --              $    --            $  (421)
     State                                                    669                 387                  --
                                                             ----                 ---                ----

        Total current                                         669                 387               (421)
                                                             ----                 ---               -----

Deferred provision (benefit)
     Federal                                                  568              (1,464)             (4,527)
     State                                                  ( 134)               (255)               (791)
                                                            ------              -----               ------

        Total deferred                                        434              (1,719)             (5,318)
                                                            ------             -------             -------

        Total provision (benefit)                         $ 1,103             $(1,332)           $ (5,739)
                                                            ======              ======              ======
</TABLE>


     The provision  (benefit)for  income taxes varies from the amount determined
by applying the federal  income tax statutory  rate to the income or loss before
income taxes. The reconciliation of these differences is as follows:
<TABLE>
<CAPTION>

                                                                     For the Year Ended December 31,             
                                                            --------------------------------------------
                                                            1998                  1997              1996
                                                            -----             ---------             -------
<S>                                                        <C>                <C>                   <C>    
Computed expected income tax
     provision (benefit)                                   (34.0)%                34.0 %            (34.0)%
Goodwill amortization                                        2.4                 379.6                2.2
State income taxes, net of
     federal income tax benefit                             (1.8)                  5.9               (5.9)
Change in valuation allowance
     for deferred tax assets                                24.9              (2,214.0)               0.2
Meals and entertainment                                      1.1                 111.8                 --
Sale of division/other                                      20.9                  17.2                0.6
                                                            ----                 -----                ---
                                                            13.5 %            (1,665.5)%            (36.9)%
                                                            =====              =======               ====

</TABLE>

<PAGE>


                         TELOS CORPORATION AND SUBSIDIARIES
                    NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

     The tax  effects of  temporary  differences  that give rise to  significant
portions of the deferred tax assets and deferred tax liabilities at December 31,
1998 and 1997 are as follows (in thousands):
<TABLE>
<CAPTION>

                                                                                        December 31,        

                                                                                   ------------------------
                                                                                   1998                1997
                                                                                   -----              ------ 
<S>                                                                               <C>                 <C>    
Deferred tax assets:
      Accounts receivable, principally due
        to allowance for doubtful accounts                                        $  153              $  201
      Allowance for inventory obsolescence and
        amortization                                                               1,377               1,728
      Accrued liabilities not currently
        deductible                                                                   794                 999
      Accrued compensation                                                         1,562               2,190
      Deferred office rent and accrued
        sublease liabilities                                                          --                  25
      Property and equipment, principally due
        to differences in depreciation methods                                       396               1,165
      Net operating loss carryforwards                                             5,660               3,140
      Alternative minimum tax credit carryforward                                    703                 703
                                                                                   -----              ------
            Total gross deferred tax assets                                       10,645              10,151
            Less valuation allowance                                              (4,987)             (2,974)
                                                                                  ------              ------
            Net deferred tax assets                                                5,658               7,177
                                                                                  ------              ------
Deferred tax liabilities:
      Unbilled accounts receivable, deferred for tax purposes                       (317)               (800)
      Software development costs                                                    (735)             (1,360)
                                                                                   ------              -----
            Total deferred tax liabilities                                        (1,052)             (2,160)
                                                                                  -------              -----
            Net deferred tax assets                                               $4,606              $5,017
                                                                                  =======              =====
</TABLE>

     The net change in the valuation allowance was an increase of $2,013,000 for
1998 and a  decrease  of  $1,728,000  for 1997.  Included  in the  change in the
valuation  allowance  were decreases of  approximately  $23,000 and $187,000 for
1998 and 1997,  respectively,  related to the reversal of temporary  differences
acquired from Telos Corporation  (California).  The total tax benefits of future
deductible   temporary   differences  acquired  in  connection  with  the  Telos
Corporation  acquisition were $6,097,000 at January 14, 1992. As of December 31,
1998, all of the tax benefits acquired have reversed.

     At December 31, 1998,  for federal  income tax purposes the Company had net
operating loss  carryforwards of $12,741,000  available to offset future regular
taxable income.  These net operating loss  carryforwards  expire in 2011 through
2014.  Additionally,  $10,943,000 of alternative  minimum tax net operating loss
carryforwards are available to offset future alternative minimum taxable income.
These alternative  minimum tax net operating loss carryforwards also expire from
2011 to 2014. In addition,  the Company has $703,000 of alternative  minimum tax
credits  available to be carried  forward  indefinitely to reduce future regular
tax liabilities.

<PAGE>


                 TELOS CORPORATION AND SUBSIDIARIES
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 9.     Commitments and Contingencies

Leases

     The  Company  leases  office  space  and  equipment  under   non-cancelable
operating  and  capital  leases with  various  expiration  dates,  some of which
contain renewal options.

     On March 1, 1996, the Company  entered into a twenty year capital lease for
a building that serves as its corporate headquarters.  The Company has accounted
for this transaction as a capital lease and has accordingly  recorded assets and
a corresponding liability of approximately $12.3 million. Under the terms of the
lease,  the  landlord  furnished  the Company  with $1.3  million to fund tenant
improvements  and  other  building  costs.  The  Company's  former  headquarters
facility was leased with a lease expiration date of March 31, 1997. In 1996, the
Company  recorded  $781,000  of  additional  expense  for  the  remaining  lease
obligation of its former headquarters facility.

     The  following  is a schedule  by years of future  minimum  payments  under
capital leases together with the present value of the net minimum lease payments
as of December 31, 1998 (in thousands):
<TABLE>
<CAPTION>


                                                  Property         Equipment        Total
                                                  --------         ---------        ------
         <S>                                        <C>              <C>           <C>    
         1999                                       $ 1,447          $ 140         $ 1,587
         2000                                         1,447            103           1,550
         2001                                         1,447             54           1,501
         2002                                         1,447             --           1,447
         2003                                         1,447             --           1,447
         Remainder                                   17,655             --          17,655
                                                     ------            ---          ------

         Total minimum obligations                   24,890            297          25,187
         Less amounts representing
             interest                               (13,033)           (65)        (13,098)
                                                    --------         ------        --------

         Net present value of
             minimum obligations                     11,857            232          12,089
         Less current portion                          (274)         ( 105)           (379)
                                                     -------          -----        --------

         Long term capital lease
             obligations at
             December 31, 1998                      $11,583           $127         $11,710
                                                     ======            ===          ======
</TABLE>

     Accumulated amortization for property and equipment under capital leases at
December 31, 1998 and 1997 is $2,019,000 and $1,196,000, respectively.

     Future minimum lease payments for all  non-cancelable  operating  leases at
December 31, 1998 are as follows (in thousands):
<TABLE>
         <S>                                         <C>


         1999                                        $2,369
         2000                                         1,543
         2001                                           590
         2002                                           304
         2003                                           248
         Remainder                                      677
                                                     ------

         Total minimum lease payments                $5,731
                                                     ======

</TABLE>


     Net rent expense  charged to operations  for 1998,  1997,  and 1996 totaled
$2,001,000, $2,545,000, and $4,556,000, respectively.

Legal

     The Company is a party to various  other  lawsuits  arising in the ordinary
course  of  business.  In the  opinion  of  management,  while  the  results  of
litigation cannot be predicted with certainty, the final outcome of such matters
will not have a material adverse effect on the Company's  consolidated financial
position or results of operations.

<PAGE>


                      TELOS CORPORATION AND SUBSIDIARIES
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 10.  Related Parties

     In 1996, the Company paid previously  accrued  advisory fees of $525,000 to
the firm  Beninati  and Wood,  Inc.  Mr.  John B. Wood became an employee of the
Company  in 1992 and  serves as  President  and Chief  Executive  Officer  and a
Director of the Company.  Mr. Joseph P. Beninati served as Chairman of the Board
for the majority of 1994 before resigning  January 5, 1995. The Company paid Mr.
Beninati  $165,000  annually  subject to a three year employment  agreement that
began in 1995.  Mr.  Beninati  resigned  from the Board in 1996 and received his
final payment in 1998.

     Mr. John R. Porter, a major  shareholder,  has a consulting  agreement with
the Company whereby he is compensated for specific  services.  Expense  recorded
pursuant to this agreement was $200,000 in both 1998 and 1997.

     Mr. Byers, a Director of the Company,  has a consulting  agreement with the
Company  to  help  the  Company   expand  its  business   operations   into  the
international  marketplace.  Under this agreement Mr. Byers  receives  $10,500 a
month  for his  services.  Mr.  Byers was  compensated  $125,000,  $130,000  and
$128,000 for 1998, 1997 and 1996,  respectively.  This consulting  agreement was
terminated in the fourth quarter of 1998.

Note 11.  Reportable Business Segments

     The  Company  adopted  SFAS No.  131,  "Disclosures  About  Segments  of an
Enterprise and Related  Information",  in 1998 which changes the way the Company
reports information about its operating  segments.  The information for 1997 and
1996 has been restated from the prior year's presentation in order to conform to
the 1998 presentation.

         The Company has three reportable segments:

     Systems and Support  Services - provides  software  development and support
services  for  software  and hardware  including  technology  insertion,  system
redesign and software re-engineering.  This segment consists of four divisions -
solutions,  services,  international,  and systems (systems was sold in February
1998 as  discussed  in Note 2). The  principal  market  for this  segment is the
Federal government and its agencies.

     Products  -  delivers  information  security,  enterprise  integration  and
networking  infrastructure  solutions to its customers.  These solutions include
providing  commercial  hardware,  software  and services to its  customers.  The
Products  group is capable of staging,  installing  and deploying  large network
infrastructures  with virtually no disruption to customer's ongoing  operations.
The  principal  market  for  this  segment  is the  Federal  government  and its
agencies.

     Enterworks  - this  group  helps  companies  build  the fast  and  flexible
information  infrastructure  they need to  compete in a global  economy.  Though
web-enabled  integration  of disparate  data and  intelligent  business  process
flows, their software links employees,  customers and partners in ways that make
the  virtual  enterprise  a  reality.  Their  products  include  Virtual  DB and
Enterworks  Process Manager.  Enterworks'  advanced  solutions serve healthcare,
financial services, manufacturing and government customers worldwide.

     The accounting  policies of the  reportable  segments are the same as those
described in Note 1. The Company  evaluates  the  performance  of its  operating
segments based on revenue, gross profit and income before goodwill amortization,
income taxes, non-recurring items and interest income or expense.
<PAGE>


                            TELOS CORPORATION AND SUBSIDIARIES
                         NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

     Summarized  financial  information   concerning  the  Company's  reportable
segments is shown in the following table. The "other" column includes  corporate
related items.

     The Company has excluded TCS amounts from  external and internal  revenues,
and segment profit (loss) disclosures as this business was sold in December 1996
and has been treated as a disposal of a segment of a business under APB 30 (Note
3).
<TABLE>
<CAPTION>

                                          Systems and
                                        Support Services      Products     Enterworks     Other (1)       Total
                                        ----------------      --------     ----------     ---------       -----

<S>                                       <C>                 <C>          <C>            <C>            <C>    
      1998
External Revenues                         $ 98,277            $101,736     $   7,073      $    --        $ 207,086
Intersegment Revenues                     $    970            $  2,622     $       1      $    --        $   3,593
Gross profit                              $ 14,046            $  8,583     $   1,542      $    --        $  24,171
Segment profit (loss)(4)                  $  4,849            $     14     $ (11,534)     $    --        $  (6,671)
Total assets                              $ 45,340            $ 24,206     $   6,119      $19,586        $  95,251
Capital Expenditures                      $    179            $     49     $     587      $   435        $   1,250
Depreciation & Amortization(2)            $    557            $    479     $   2,332      $ 1,487        $   4,855

       1997
External Revenues                         $121,052            $129,337     $   3,398      $    --        $ 253,787
Intersegment Revenues                     $    667            $  1,387     $       4      $    --        $   2,058
Gross profit                              $ 20,614            $ 14,875     $  (  132)     $    --        $  35,357
Segment profit (loss)(4)                  $ 10,229            $  3,977     $  (5,903)     $    --        $   8,303
Total assets                              $ 55,834            $ 24,323     $   6,374      $23,187        $ 109,718
Capital Expenditures                      $    330            $    688     $     480      $ 1,091        $   2,589
Depreciation & Amortization(2)            $    716            $    929     $   1,075      $ 2,270        $   4,990

       1996
External Revenues                         $101,535            $ 85,220     $   2,140      $    --        $ 188,895
Intersegment Revenues                     $    946            $    968     $      69      $    --        $   1,983
Gross profit                              $ 11,237            $  8,422     $     955      $    --        $  20,614
Segment profit (loss)(4)                  $    593            $ (5,362)    $  (3,672)     $    --        $  (8,441)
Total assets                              $ 54,975            $ 27,885     $   3,284      $23,920        $ 110,064
Capital Expenditures(3)                   $    150            $  1,087     $     554      $   656        $   2,447
Depreciation & Amortization(2)            $  1,417            $    949     $     502      $ 1,126        $   3,994

<FN>


(1) Corporate assets are principally property and equipment, cash and other
    assets.
(2) Depreciation and amortization includes amounts relating to property and
    equipment,  goodwill,  deferred  software costs and spare parts  inventory.  
    The depreciation  and  amortization  disclosure above is net of TCS 
    depreciation and amortization of $482 for 1996.
(3) The 1996 capital expenditure  disclosure is net of TCS capital  expenditures
    of $111.
(4) Segment profit (loss) represents operating income (loss) before goodwill
    amortization.
</FN>
</TABLE>

     The Company does not have material international  revenues,  profit (loss),
assets or capital expenditures.  The Company's business is not concentrated in a
specific  geographical  area  within the United  States,  as it has 56  separate
facilities located in 19 states.

<PAGE>


Item 9.  Changes in and Disagreements with Accountants on Accounting and
         Financial Disclosure

         None


<PAGE>


                                PART III

Item 10.       Directors and Executive Officers of the Registrant

Dr. Fred Charles Ikle, Chairman of the Board
- --------------------------------------------

     Dr.  Ikle (age 74) was elected to the Company's  Board of Directors on
January 31, 1994 and was elected  Chairman of the Board in January  1995.  He is
Chairman  of   Conservation   Management   Corporation   and   Director  of  the
Zurich-American Insurance Companies. Dr. Ikle is also a Director of the National
Endowment for Democracy and a Distinguished  Scholar at the Center for Strategic
& International  Studies.  From 1981 to 1988, Dr. Ikle served as Under Secretary
of Defense for Policy.

Julio E. Heurtematte, Jr., Director
- -----------------------------------

     Mr. Heurtematte (age 62) was elected to the Company's Board of Directors on
July 31, 1998.  He has been a private  consultant  since 1989,  specializing  in
international  projects,  trade  and  investments.  From  1963 to 1989,  he held
various positions at the InterAmerican  Development Bank ("IAD"),  most recently
as the deputy Manager for Project Analysis.  From 1979 to 1989, Mr.  Heurtematte
was  also  a  member  of IAD  Bank's  Pension  Fund  Investment  Committee.  Mr.
Heurtematte  is also a member of the Board of  Directors  of Trans World  Gaming
Corporation.

Malcolm M.B. Sterrett, Director
- -------------------------------

     Mr.  Sterrett  (age  55) is a  private  investor  and  was  elected  to the
Company's  Board of  Directors  on July 31,  1998.  From 1989 to 1993,  he was a
partner at the law firm of Pepper  Hamilton & Scheetz in  Washington,  D.C. From
1988 to 1989, he served as General Counsel to the U.S.  Department of Health and
Human  Services  and  from  1982  to  1988  he was a  Commissioner  on the  U.S.
Interstate Commerce Commission. Prior thereto, he was Vice President and General
Counsel to the United States  Railway  Association  and served as Staff Director
and  Counsel  to  the  U.S.   Senate   Committee   on   Commerce,   Science  and
Transportation. Mr. Sterrett is also a member of the Board of Directors of Trans
World Gaming Corporation.

John B. Wood, Director, President and Chief Executive Officer 
- ------------------------------------------------------------- 

     Mr.  Wood (age 35) was elected  President  and Chief  Executive  Officer on
February 16, 1994. Mr. Wood was appointed Chief Operating  Officer on October 8,
1993 after serving as Executive  Vice President from May of 1992. He was elected
to the Board of  Directors  on May 13,  1992.  Mr.  Wood  joined the  Company on
February  13,  1992.  Prior to joining  the  Company,  Mr. Wood was a founder of
Beninati & Wood, Inc., an investment banking firm which had provided services to
the Company.

Dr. Stephen D. Bryen, Director
- ------------------------------

     Dr.  Stephen Bryen (56) was elected to the Company's  Board of Directors on
January 31,  1994.  He  currently  serves as a Director in  Jefferson  Partners,
L.L.C., a strategic management consulting and merchant banking firm with offices
in  Washington,  D.C.  and New York and as Senior Vice  President of L-3 Network
Security,  LLC, in Denver,  Colorado. Dr. Bryen currently serves on the board of
C-MAC  Industries in  Mechanicsburgh,  Pennsylvania  and is the senior technical
advisor to  Hollinger  Digital  Corporation  in New York.  From 1981 to 1988 Dr.
Bryen served as the Deputy Under  Secretary of Defense for Trade Security Policy
and as the Director of the Defense Technology Security Administration,  which he
founded.

Norman P. Byers, Director
- -------------------------

     Mr.  Byers (age 52) was  elected to the Board of  Directors  on January 31,
1994. He has been  president of Byers  Consulting,  a Fairfax  County,  Virginia
international business consulting firm since July 1996. Before that appointment,
he had served as the  President of  International  Strategies  Limited,  another
local international  business consulting firm. From 1968 until his retirement in
1989,  Mr. Byers served in a variety of operational  and staff  positions in the
United States Air Force.

<PAGE>


David S. Aldrich, Vice President, Chief Operating Officer
- ---------------------------------------------------------

     Mr.  Aldrich  (age  39)  joined  the  Company  in  September  1996  as Vice
President,  Corporate Development and Strategy. Prior to joining the Company, he
was a partner in the Financial  Advisory  Services Group - Corporate  Finance at
Coopers & Lybrand L.L.P.  Prior to joining Coopers & Lybrand L.L.P. in 1991, Mr.
Aldrich was Senior Vice  President at Dean Witter  Capital  Corp.,  the merchant
banking arm of Dean Witter  Reynolds,  Inc.  Mr.  Aldrich was  appointed  to the
position of Chief Operating Officer of the Company in January 1999.

William L. Prieur Brownley, Vice President and General Counsel
- --------------------------------------------------------------

     Mr.  Brownley (age 42) joined the Company in April 1991 and is  responsible
for the management of the Company's  legal affairs.  For the five years prior to
joining the Company,  he served as Assistant General Counsel and then as General
Counsel at  Infotechnology  Inc., an investment  company whose holdings included
various companies in the communications industry.

     Gerald  D.  Calhoun,  Vice  President,   Human  Resources,   and  Corporate
Secretary, Telos Corporation and Enterworks, Inc.
- --------------------------------------------------------------------------------

     Mr. Calhoun (age 49) joined the Company as Vice President, Human Resources,
in August 1989.  Prior to joining the Company he served as  Corporate  Director,
Risk  and  Financial  Management  of BDM  International  Corp.,  an  information
technology  consulting  services  company,  Vice  President,  Human Resources of
Halifax  Corp.  a  technical  services  company,  and as  Director  for the U.S.
Department of Labor, Employment Standards Administration.

     Mark W.  Hester,  former  Executive  Vice  President  and  Chief  Operating
Officer, Telos Corporation
- --------------------------------------------------------------------------------

     Mr.  Hester (age 46) joined  Telos in 1979 and was  appointed  as Executive
Vice President and Chief  Operating  Officer in 1998. He was responsible for all
business activities at Telos. Previously, he has held progressive positions with
Telos as  President  of  Telos  Systems  Solutions,  President  of  Telos  Field
Engineering,  Regional  Manager of Operations,  and Vice President of Marketing.
Mr. Hester resigned from the position of Chief Operating Officer in 1999.

Robert W. Lewis, President, Enterworks, Inc.
- --------------------------------------------

     Mr. Lewis (age 37) has served as the President of  Enterworks,  Inc.  since
its  inception  in  1996.  Mr.  Lewis'  prior  experience  has been  with  Telos
Corporation.  From 1991 to 1995,  he was  Director,  Business  Development  with
responsibility for major customer development and technology integration.

     Robert J. Marino,  Chief Sales and  Marketing  Officer and  Executive  Vice
President
- --------------------------------------------------------------------------------

     Mr. Marino (age 62) joined the Company in 1988 as Senior Vice  President of
Sales and  Marketing.  In 1990,  his  responsibilities  were expanded to include
Program  Management in addition to Sales and Marketing.  On January 1, 1994, Mr.
Marino  was  promoted  to  President  of  Telos  Systems  Integration.  With the
amalgamation of all Telos divisions, Mr. Marino was selected on January 1, 1998,
as Chief Sales & Marketing Officer reporting  directly to the CEO and is part of
the Office of the President.

Lorenzo Tellez, Chief Financial Officer, Treasurer, and Vice President
- ----------------------------------------------------------------------

     Mr. Tellez (age 41) was appointed Chief Financial Officer of the Company in
1993 and Treasurer in 1994.  He joined Telos  Corporation  (California)  in 1989
where he was  responsible for all financial and regulatory  functions.  Prior to
joining Telos  Corporation,  Mr.  Tellez served as a Senior  Manager with Arthur
Andersen & Company.

     Each of the  directors  and  executive  officers of the Company is a United
States citizen.


<PAGE>


Item. 12.  Executive Compensation

     Information is set forth in the Summary  Compensation Table included on the
following page with respect to all forms of compensation for service rendered in
all  capacities to the Company  during the fiscal years ended December 31, 1998,
1997, and 1996, of the Chief  Executive  Officer and four other most highly paid
executive officers during 1998.
<TABLE>
<CAPTION>

                                                    SUMMARY COMPENSATION TABLE


                                                                                           Long-Term Compensation (3)
                                                    Annual Compensation                     Awards        Payouts
                                                    -------------------                     ------        -------
Name                                                                            Other                        All
and                                                                            Annual                       Other
Principal                                                                       Compen-     Options/       Compen-
Position                               Year      Salary          Bonus(1)      sation(2)    SARs(#)(4)    sation (5)
- --------------------------------------------------------------------------------------------------------------------
<S>                                    <C>        <C>           <C>            <C>         <C>              <C>
John B. Wood                           1998       $334,198      $     --       $ 8,500            --        $5,000
(President, Chief                      1997       $299,998      $382,000       $32,000            --        $4,750
Executive Officer)                     1996       $291,921      $     --       $23,000     2,017,531        $4,750


Mark W. Hester                         1998       $202,425      $     --       $   500       250,000        $5,000
(Former Executive V. P. and            1997       $174,990      $200,000       $ 6,000       150,000        $3,525
 Former Chief Operating Officer)       1996       $184,607        80,000       $ 6,000       185,000        $2,850


Lorenzo Tellez                         1998       $218,080      $     --       $   500       200,000        $5,000
(V.P., Treasurer, Chief                1997        195,000      $150,000       $24,000       150,000        $4,750
  Financial Officer)                   1996        188,269      $145,000       $15,000       465,000        $4,750


David Aldrich                          1998       $173,850      $     --       $ 1,250       210,000        $1,083
(V.P., Chief Operating Officer)        1997       $150,010      $150,000       $ 6,000       300,000            --
                                       1996       $ 45,580            --       $    --       200,000            --


Robert J. Marino                       1998       $204,734      $     --       $   500       362,000        $5,000
(Chief Sales and Marketing             1997       $195,000      $ 76,000       $ 6,000            --        $4,750
 Officer and Executive V.P.)           1996       $182,310      $ 90,000       $ 6,000       212,500        $4,750

<FN>

 (1) 1997 amounts  include  bonuses  relating to the TIS sale completed in 1998.
 (2) Other  annual  compensation  represents  automobile  and  living allowances
     provided  to  executives.  Additionally,  compensation  for  John  B.  Wood
     includes directors fees. 
 (3) There are  no  restricted  stock  awards or  payouts  pursuant to long-term
     investment plans.
 (4) Options  granted  are in  both  the  Company's common stock as  well  as in 
     Enterworks,  Inc., common stock. 
 (5) All other compensation represents Company contributions made on  behalf  of
     the executive officers to the Telos Shared Savings Plan.
</FN>
</TABLE>


<PAGE>


Stock Option Grants

     The  Summary  Table of  Options/SAR  Grants in the Last  Fiscal Year is set
forth below for the stock option grants in 1998.

<TABLE>
<CAPTION>


                                      Number of       % of                                 Potential Realizable
                                     Securities       Total                                  Value at Assumed
                                     Underlying     Options/    Exercise                  Rates of Stock Price
  Name and Principal                Options/SARS      SARS      or Base      Expiration      Appreciation for
      Position                         Granted       Granted     Price          Date            Option Term        
- ----------------------------------------------------------------------------------------------------------------
                                                                                                5%        10%  
                                                                                           --------     -------
<S>                                     <C>           <C>       <C>         <C>            <C>          <C>
John B. Wood
(President, Chief Executive
  Officer)                                   --        --         --              --            --           --


Mark W. Hester
(Former Executive V.P. and
 Former Chief Operating
 Officer)                               250,000       8.5%      $1.07       May 2008       $168,229     $426,326               

Lorenzo Tellez
(V.P., Treasurer, Chief
  Financial Officer)                    200,000       6.8%      $1.07       May 2008       $134,583     $341,061

David Aldrich
(V.P., Chief Operating Officer)         210,000       7.1%      $1.07       May 2008       $141,313     $358,114

Robert J. Marino
(Chief Sales and Marketing
 Officer and Executive V.P.)            362,000      12.3%      $1.07       May 2008       $243,596     $617,320



</TABLE>


<PAGE>


Management Stock Options

     The  following  table  shows,  as to the  individuals  named in the Summary
Compensation table, the number of shares acquired during such period through the
exercise  of  options,  and the  number  of shares  subject  to and value of all
unexercised options held as of December 31, 1998.
<TABLE>
<CAPTION>

                                          AGGREGATED OPTION/SAR EXERCISES IN LAST FISCAL YEAR
                                                     AND FY-END OPTION/SAR VALUES

                                                                     Number of
                                                                     Securities             Value of
                                                                     Underlying             Unexercised
                                                                     Unexercised            In-the-Money
                                                                     Options/SARs           Options/SARs
                                                                     at FY-End              at FY-End (1)(2)

                               Shares Acquired         Value         Exercisable/           Exercisable/
Name                             on Exercise         Realized        Unexercisable          Unexercisable
- ----                             -----------         --------        -------------          -------------
<S>                                   <C>               <C>     <C>                       <C>                 
John B. Wood                          --                --      1,507,471/1,210,519       $924,615/494,887
(President, Chief Executive
 Officer)

Mark W. Hester                        --                --          169,000/416,000         62,400/141,350
(Former Executive V.P.
 and Former Chief
 Operating Officer)

Lorenzo Tellez                        --                --          271,000/544,000        107,400/201,850
(V.P., Treasurer,
  Chief Financial Officer)

David Aldrich                         --                --          212,000/498,000         94,360/196,440
(V.P., Chief Operating
 Officer)

Robert J. Marino                      --                --          372,550/534,350         75,857/178,703
(Chief Sales and Marketing
 Officer and Executive V.P.)
<FN>

(1) Based on an  estimated  fair market  value of the  Company's  Class A common
    stock of $1.35 per share at December  31, 1998. 
(2) Based on an estimated  fair market value of Enterworks common stock of $0.77
    per share at December 31, 1998.
</FN>
</TABLE>


<PAGE>


Compensation of Directors

     During the fiscal year ended  December 31, 1998,  employee  directors  were
paid a fee of $2,000 for each Board  meeting  attended.  Outside  directors  Mr.
Byers and Dr. Bryen were paid an annual fee of $25,000, and- further compensated
at a rate of $750 for each meeting in excess of four  meetings a year.  Chairman
of the Board, Dr. Ikle, is paid $25,000  quarterly for his service on the Board.
In  addition,  Mr.  Byers  receives  $5,000  per annum for his  service as Proxy
Chairman.  The compensation  paid to the outside directors is paid pursuant to a
proxy agreement between the Company, the Defense Security Service and certain of
the Company shareholders.  During the fiscal year ended December 31, 1998, other
than Mr. Wood, no directors of the Company were awarded options.

Employment Contracts

     The  Company  is a  party  to  agreements  with  certain  of its  executive
officers.  Mr. David Aldrich,  Vice President and Chief Operating  Officer,  Mr.
William  Brownley,  General  Counsel,  Mr. Gerald Calhoun,  Vice President Human
Resources and Corporate  Secretary Telos Corporation and Enterworks,  Mr. Robert
Marino,  Chief Sales and Marketing  Officer and Executive  Vice  President,  Mr.
Lorenzo Tellez,  Chief  Financial  Officer,  and Mr. John Wood,  Chief Executive
Officer,  have  agreements  with the Company  which provide for a payment of two
year's base salary then in effect if involuntarily  terminated.  At December 31,
1998, Mr. Aldrich,  Brownley,  Calhoun,  Marino, Tellez and Wood had base salary
levels of  $181,000,  $171,000,  $169,000,  $206,000,  $206,000,  $219,000,  and
$350,000,  respectively.  In  addition,  these  executive  officers'  agreements
provide for bonus payments should certain operating results be attained.

<PAGE>


Item 12.  Security Ownership of Certain Beneficial Owners and Management
<TABLE>
<CAPTION>

                                    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
                (1)                             (2)                                (3)                      (4)
                                                                         Amount and Nature
                                     Name and Address                of Beneficial Ownership            Percent of
      Title of Class                of Beneficial Owner               as of March 1, 1999                  Class
      -------------------------------------------------------------------------------------------------------------
   <S>                              <C>                                     <C>                           <C>           
   Class A Common Stock             John Porter                             22,190,718 shares (A)         80.32%
                                    15 Berners St.
                                    London SW1W 9EA England

   Class A Common Stock             C3, Inc. 401(k) Plan and                 3,658,536 shares             17.23%
                                    Telos Corporation Savings Plan
                                    c/o C3, Inc.
                                    19886 Ashburn Road
                                    Ashburn, Virginia 20147

   Class B Common Stock             F&C Nominees Limited                      3,143,358 shares            77.85%
                                    11 Devonshire Square
                                    London EC 2M 4YR England

   Class B Common Stock             Hare & Company                             815,700 shares             20.20%
                                    C/o Bank of New York
                                    P.O. Box 11203
                                    New York, NY  10249

   Class A Common Stock             David Aldrich                              170,392 shares (B)          0.80%
   Class A Common Stock             Robert J. Marino                           493,352 shares (B)          2.28%
   Class A Common Stock             Mark W. Hester                             240,778 shares (B)          1.12%
   Class A Common Stock             Lorenzo Tellez                             412,440 shares (B)          1.92%
   Class A Common Stock             John B. Wood                             1,491,863 shares (C)          6.57%
   Class A Common Stock             All Officers and
                                    Directors As A Group
                                    (9 persons)                              3,124,616 shares (D)         13.03%

   12% Cumulative Exchangeable      Value Partners, Ltd.                       714,317 shares (E)         22.42%
   Redeemable Preferred Stock       2200 Ross Avenue, Ste 4660
                                    Dallas, TX  75201

   12% Cumulative Exchangeable      Fisher Ewing Partners                      714,317 shares (E)         22.42%
   Redeemable Preferred Stock       2200 Ross Avenue, Ste 4660
                                    Dallas, TX  75201


   12% Cumulative Exchangeable      Wynnefield Partners Small                  228,500 shares (F)         7.17%
   Redeemable Preferred Stock       Cap Value L.P.
                                    Channel Partnership II, L.P.
                                    Wynnefield Small Cap Value
                                    Offshore Fund, Ltd.
                                    One Penn Plaza, Suite 4720
                                    New York, NY  10119

   12% Cumulative Exchangeable      Magten Asset Management Corp.              221,200 shares             6.94%
   Redeemable Preferred Stock       35 East 21st Street
                                    New York, NY  10010
<FN>

(A)   Mr. Porter's  holdings  include 6,388,916  shares of Class A Common  Stock
      purchasable upon exercise of a warrant. 
(B)   Messrs. Aldrich, Marino,Hester,and Tellez hold options to acquire 162,000,
      371,300, 170,000, and 260,000 shares of the Company's Class A Common Stock,
      respectively, in addition to their current common stock  holdings.  These 
      shares are purchasable upon exercise of warrant and are exercisable within 
      60 days of March 1, 1999.
(C)   Mr.  Wood owns  8,392  shares  of  Common  Stock and he holds an option to
      acquire 1,483,471 shares of the Company's Class A Common Stock purchasable
      upon exercise of options 60 days from March 1, 1999.
(D)   Under the Company's stock option plan and certain stock option agreements,
      all  officers and  directors as a group hold options to acquire  2,737,971
      shares of Class A Common Stock  exercisable  within 60 days after March 1,
      1999.
(E)   Value  Partners  Ltd.  and Fisher  Ewing  Partners  have  filed  jointly a
      Schedule  13D under  which they  disclosed  that they may act as a "group"
      within the meaning of Section 13(d) of the  Securities  Exchange Act. Each
      of the reporting  persons  disclosed that it may be deemed to beneficially
      own the aggregate of 714,317 shares of the Public  Preferred Stock held of
      record by the reporting persons collectively.
(F)   Wynnefield Partners Small Cap Value L.P., Channel Partnership II, L.P. and
      Wynnefield  Small Cap Value  Offshore  Fund,  Ltd.  Have  filed  jointly a
      Schedule  13D under  which they  disclosed  that they may act as a "group"
      within the meaning of Section 13 (d) of the Securities Exchange Act.
</FN>
</TABLE>

<PAGE>

Item 13.                 Certain Relationships and Related Transactions

     Mr. Joseph P. Beninati  served as Chairman of the Board for the majority of
1994 before  resigning  January 5, 1995.  The  Company  paid  $165,000  annually
subject to a three year  employment  agreement that began in 1995 and terminated
January 8, 1998. Mr.  Beninati  resigned from the Board in 1996 and received his
final payment in 1998.

     Mr. John R. Porter has a consulting  agreement with the Company  whereby he
will be compensated for specific  services.  Expense  recorded  pursuant to this
agreement was $200,000 for both 1998 and 1997.

     Mr. Byers, a Director of the Company,  has a consulting  agreement with the
Company  to  help  the  Company   expand  its  business   operations   into  the
international  marketplace.  Under this agreement Mr. Byers  receives  $10,500 a
month for his  services.  Mr.  Byers was  compensated  $125,000,  $130,000,  and
$128,000 for 1998,  1997 and 1996,  respectively.  The consulting  agreement was
terminated in the fourth quarter of 1998.

<PAGE>


                                    PART IV

Item 14.  Exhibits, Financial Statement Schedules, and Reports on Form 8-K

(a)    1.     Financial Statements

              All  financial  statements  of the  registrant as set forth under
              Item 8 of this report on Form 10-K.

(a)    2.     Financial Statement Schedules

              All schedules are omitted  because they are not  applicable or the
              required  information  is included in the  consolidated  financial
              statements or notes thereto.

(a)    3.     Exhibits:
     Exhibits  marked with (1*) are  incorporated  by reference to the Company's
Registration Statement No. 2-84171 filed June 2, 1983. Exhibits marked with (3*)
are  incorporated  by reference to the Company's Form 10-K report for the fiscal
year  ended  March 31,  1987.  Exhibits  marked  with (4*) are  incorporated  by
reference to the Company's  Form 10-K report for the fiscal year ended March 31,
1989. The registrant  will furnish to stockholders a copy of other exhibits upon
payment  of $.20  per page to cover  the  expense  of  furnishing  such  copies.
Requests  should be directed to the  attention  of Investor  Relations  at Telos
Corporation, 19886 Ashburn Road, Ashburn, Virginia 20147-2358.

     2.6            Stock  Purchase  Agreement  dated as of January 14, 1992, by
                    and among C3, Inc.,  Telos  Corporation  and Contel  Federal
                    Systems, Inc.(Incorporated by reference to C3, Inc. Form 8-K
                    filed January 29, 1992)

     3.1            (1*) Articles of Amendment and Restatement of C3, Inc.

     3.2            (1*)  Articles of  Amendment  of C3, Inc.  dated  August 31,
                    1981.

     3.3            (3*) Articles supplementary of C3, Inc. dated May 31, 1984.

     3.4            (4*) Articles of Amendment of C3, Inc.dated August 18, 1988.

     3.5            Articles of Amendment and Restatement  Supplementary  to the
                    Articles   of   Incorporation    dated   August   3,   1990.
                    (Incorporated  by reference to C3, Inc. 10-Q for the quarter
                    ended June 30, 1990)

     3.6            Restated  Bylaws of C3, Inc.  (Incorporated  by reference to
                    C3, Inc.10-Q for the quarter ended December 31,1990)

     3.7            Articles of Amendment of C3, Inc. dated April 13, 1995

     4.1            Form of Indenture  between the  Registrant and Bankers Trust
                    Company, as Trustee, relating to the 12% Junior Subordinated
                    Debentures  Due 2009.  (Incorporated  herein by reference to
                    C3's  Registration  Statement on Form S-4 filed  October 20,
                    1989)

     4.3            Form  of  the  terms  of  the  12%  Cumulative  Exchangeable
                    Redeemable Preferred Stock of the Registrant.  (Incorporated
                    herein by reference to C3's  Registration  Statement on Form
                    S-4 filed October 20, 1989)

     4.4            Shareholders  Agreement  dated as of  August  3, 1990 by and
                    among C3, Inc.; Union de Banques Suisses Luxembourg),  S.A.;
                    C3  Investors,   L.P.;  Anthony  Craig,  together  with  the
                    investors;  the  Class A  holders;  MIM  Limited;  Knoll and
                    Associates,    Inc.;   Murray   Enterprises   PLC;   Electra
                    Development Holdings; and Hartley Limited.  (Incorporated by
                    reference  to C3, Inc.  10-Q for the quarter  ended June 30,
                    1990)


<PAGE>


    4.5             Articles of Amendment and Restatement of the Company,  filed
                    with the  Secretary  of State of the  State of  Maryland  on
                    January 14,  1992.  (Incorporated  by  reference to C3, Inc.
                    Form 8-K filed January 29, 1992)

   10.20            Revolving and Reducing Senior Facility Credit Agreement
                    dated as of  January 14,  1992,  among C3,  Inc.,  Telos
                    Corporation  and   NationsBank,  N.A.  (Incorporated  by
                    reference to C3, Inc.  Form  8-K filed January 29, 1992)

   10.31            September 27, 1993 Settlement Agreement among John R.C.
                    Porter,  Toxford  Corporation,   Cantrade Nominees Ltd.,
                    Cantrade Trust Company (Cayman) Ltd.,  Cantrade Trustee,
                    AG, Fred  Knoll,    Cottonwood  Holdings,  C3  Investors
                    L.P., C3, Inc., Telos Corporation,  Joseph P.  Beninati,
                    John B. Wood and Beninati & Wood, Inc.  (Incorporated by
                    reference to C3, Inc. Form 8-K filed October 18, 1993)

  10.32             September 27, 1993 Stock  Purchase   and Sale  Agreement
                    between  Mr. John  R.C.  Porter and C3  Investors,  L.P.
                    (Incorporated by  reference  to C3, Inc. Form  8-K filed
                    October 18, 1993)

  10.33             September 27, 1993 Stock Purchase   and  Sale Agreement 
                    between  Mr. John R.C.  Porter and Cottonwood  Holdings,
                    Inc. (Incorporated   by reference to C3, Inc.   Form 8-K
                    filed October 18, 1993)

  10.34             September 27, 1993 Note Interest Purchase and Sale Agreement
                    among Mr.John R.C. Porter, Cottonwood and C3,Inc.
                    (Incorporated by reference to C3, Inc.Form 8-K filed October
                    18, 1993)

  10.35             October 8, 1993 Promissory Note in the amount of  $8,438,000
                    issued by Mr.John R.C.Porter in favor of C3 Investors,  L.P.
                    (Incorporated by reference to C3, Inc.Form 8-K filed October
                    18, 1993)

  10.36             October  8, 1993   Promissory   Note  in  the  amount of
                    $1,562,000  issued by Mr.  John R.C.  Porter in favor of
                    Cottonwood Holdings, Inc. (Incorporated by reference to C3,
                    Inc. Form 8-K filed October 18, 1993)

  10.37             September 27,  1993  Collateral   Agency,   Security and
                    Pledge  Agreement among Mr. John R.C.  Porter,  Mr. Fred
                    Knoll,  Cottonwood  Holdings,  C3 Investors, L.P., C3, Inc.,
                    Telos Corporation,  Toxford Corporation,  Cantrade  Nominees
                    Limited,  Mr. Robert M. Ercole and Mr.Frank S.Jones, Jr.
                    (Incorporated  by reference to C3, Inc. Form 8-K filed
                    October 18, 1993)

  10.38             September 27, 1993 Standstill Agreement among Mr.John R.C.
                    Porter,  Mr.  Fred  Knoll, Mr. Alfredo Frohlich and C3, Inc.
                    (Incorporated by reference to C3, Inc. Form 8-K filed
                    October 18, 1993)

  10.39             September  27, 1993 Mutual  Release  among Mr. John R.C.
                    Porter, Mr.Fred Knoll,Cottonwood Holdings, C3 Investors,
                    L.P.,C3, Inc., Telos Corporation, Mr.Joseph P. Beninati,
                    Mr. John B. Wood, and Beninati & Wood, Inc.(Incorporated
                    by reference to C3,Inc. Form 8-K filed October 18, 1993)

  10.40             September 27, 1993 Consulting  Agreement among Mr. Fred
                    Knoll, C3, Inc. and Telos Corporation. (Incorporated  by
                    reference to C3, Inc. Form 8-K filed October 18, 1993)

  10.43             Amendment to Revolving and Reducing Senior Credit Facility
                    dated as of December 31, 1993 among C3, Inc., Telos
                    Corporation and NationsBank, N.A.

  10.44             Amendment to Revolving and Reducing Senior Credit Facility
                    dated as of April 11, 1994 among C3, Inc., Telos Corporation
                    and NationsBank, N.A.


<PAGE>

  10.45             Amendment to Revolving and Reducing Senior Credit Facility
                    dated as of June 8, 1994 among C3, Inc., Telos Corporation
                    and NationsBank, N.A.

  10.46             Amendment to Revolving and Reducing Senior Credit Facility
                    dated as of October 7, 1994 among C3,Inc., Telos Corporation
                    and NationsBank, N.A.

  10.47             October 7, 1994 Letter Agreement among C3,Inc., Toxford
                    Corporation, and NationsBank, N.A.regarding cash collateral
                    held on behalf of the Company.

  10.48             October 25, 1994 General Release and Settlement memorandum
                    among Sapiens International Corporation N.V., Sapiens
                    International Corporation B.V., Sapiens U.S.A., Inc., C3,
                    Inc. and Telos Corporation.

  10.49             Amendment to Revolving and Reducing Senior Credit Facility
                    dated as of January 5, 1995 among C3, Inc.,Telos Corporation
                    and NationsBank, N.A.

  10.50             Amendment to Revolving and Reducing Senior Credit Facility
                    dated as of  January  12, 1995  among C3, Inc., Telos
                    Corporation and NationsBank, N.A.

  10.51             Waiver and Amendment to Revolving and Reducing  Senior
                    Credit Facility dated as of April 17,1995 among C3,Inc.,
                    Telos Corporation and NationsBank, N.A.

  10.58             Series B Senior Subordinated  Secured Note due October 1,
                    2000 as of October 13, 1995 between Telos Corporation
                    (Maryland) and Drayton English and International Investment
                    Trust.

  10.59             Series B Senior Subordinated Secured Note due October 1,2000
                    as of October 13, 1995 between Telos Corporation (Maryland)
                    and J.O.Hambro Investment Management, Ltd.

  10.60             Series B Senior Subordinated Secured  Note  due  October
                    1, 2000 as of October 13, 1995 between Telos Corporation
                    (Maryland) and  North Atlantic Smaller Companies  Investment
                    Trust, PLC.

  10.61             Series B Senior Subordinated Secured Note due October 1,2000
                    as of October 13, 1995  between Telos Corporation (Maryland)
                    and Mr. John R.C. Porter.

  10.62             Series B Senior Subordinated  Secured  Note  due  October 1,
                    2000 as of  October 13,  1995  between  Telos  Corporation
                    (Maryland) and Sir Leslie Porter.

  10.63             Series B Senior  Subordinated  Secured  Note due October
                    1, 2000 as of October 13, 1995 between Telos Corporation
                    (Maryland) and Second Consolidated Trust, PLC

  10.64             Series B Senior Subordinated Secured Note due October 1,2000
                    as of October 13, 1995 between Telos Corporation (Maryland)
                    and Toxford Corp.

  10.65             Series C Senior Subordinated Unsecured Note due  October
                    1, 2000 as of October 13, 1995 between Telos  Corporation
                    (Maryland)and Drayton English and  International  Investment
                    Trust

  10.66             Series C Senior Subordinated Unsecured Note due October   1,
                    2000 as of October 13, 1995 between Telos Corporation
                    (Maryland) and J.O. Hambro Investment Management, Ltd.

  10.67             Series C Senior Subordinated Unsecured Note due October  1,
                    2000 as of October 13, 1995 between Telos  Corporation
                    (Maryland) and North Atlantic Smaller Companies   Investment
                    Trust, PLC.


<PAGE>


  10.68             Series C Senior Subordinated Unsecured Note due October
                    1, 2000 as of October 13, 1995 between Telos Corporation
                    (Maryland) and Mr. John R.C. Porter.

  10.69             Series C Senior Subordinated  Unsecured Note due October
                    1, 2000 as of October 13, 1995 between Telos Corporation
                    (Maryland) and Sir Leslie Porter.

  10.70             Series C Senior Subordinated Unsecured Note due  October
                    1, 2000 as of October 13, 1995 between Telos Corporation
                    (Maryland) and Second Consolidated Trust, PLC.

  10.71             Series C Senior Subordinated Unsecured Note due October 1,
                    2000 as of October  13,  1995  between  Telos  Corporation
                    (Maryland) and Toxford Corp.

  10.72             Amendment to Revolving and Reducing Senior Credit Facility
                    dated as of August 4, 1995 Telos Corporation (Maryland),
                    Telos Corporation (California) and NationsBank N.A.

  10.73             Amendment to Revolving and  Reducing Senior Credit Facility
                    dated as of October 13, 1995 Telos  Corporation (Maryland),
                    Telos Corporation (California) and NationsBank N.A.

  10.74             1996 Stock Option Plan

  10.76             Sixteenth Amendment to Credit Facility and Tenth Amended and
                    Restated Promissory Note

  10.77             Enterworks, Inc. 1996 Stock Option Plan

  10.78             Form of Series A Senior Subordinated Unsecured Note

  10.79             Form of Enterworks, Inc., Capital Stock Purchase Series A
                    Warrant

  10.80             Asset Purchase Agreement

  10.81             Amendment No. 1 to Asset Purchase Agreement

  10.82             Amended and Restated Credit Agreement between Telos
                    Corporation, a Maryland corporation; Telos Corporation, a 
                    California corporation; and NationsBank, N.A. dated as of 
                    July 1, 1997

  10.83             Asset Purchase Agreement

  10.84             Interim Agreement

  10.85             Share Purchase Agreement between Telos  Corporation,  a
                    Maryland  corporation,  formerly named and known as C3,
                    Inc. and Union Bank of Switzerland, dated May 7, 1998

  10.86             Series D Senior Subordinated  Unsecured Note due October
                    1, 2000 as of November 20,1998 between Telos Corporation
                    (Maryland) and Foreign and Colonial Enterprise Trust PLC

  10.87             Series D Senior Subordinated  Unsecured Note due October
                    1, 2000 as of November 20, 1998 between Telos Corporation
                    (Maryland)and Foreign and Colonial Enterprise Trust LP

  10.88             Common Stock Purchase Series D Warrant between Telos 
                    Corporation (Maryland) and Foreign and Colonial Enterprise
                    Trust PLC

  10.89             Common Stock Purchase Series D Warrant between Telos 
                    Corporation (Maryland) and Foreign and Colonial Enterprise
                    Trust LP

  10.90             Form of Stock Purchase Agreement

  21                Schedule of Subsidiaries.

  27                Financial Data Schedule

  (b)     Reports on Form 8-K

          None
<PAGE>


                                                              SIGNATURES

Pursuant to the  requirements of Section 13 or 15(d) of the Securities  Exchange
Act of 1934,  Telos  Corporation has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized.

                                               TELOS CORPORATION

                                                By:     John B. Wood
                                                ----------------------------
                                                         President and
                                                     Chief Executive Officer

                                                     Date:    April 1, 1999
    
Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed by the following  persons on behalf of Telos  Corporation and in
the capacities and on the date indicated.
<TABLE>
<CAPTION>


       Signature                                     Title                                       Date
- ----------------------                         ----------------------                        ----------------
<S>                                            <C>                                            <C>   



/s/  Fred Charles Ikle                         Chairman of the                                April 1, 1999
- ----------------------                         Board of Directors
Fred Charles Ikle                               



/s/  John B. Wood                              President, Chief Executive
- ----------------------                         Officer & Director 
John B. Wood                                   (Principal Executive Officer)                  April 1, 1999




/s/  Stephen D. Bryen                          Director                                       April 1, 1999
- ------------------------
Stephen D. Bryen




/s/  Norman P. Byers                           Director                                       April 1, 1999
- ------------------------
 Norman P. Byers




/s/  Lorenzo Tellez                            Chief Financial Officer                        April 1, 1999
- ------------------------                       (Principal Financial Officer)
Lorenzo Tellez                                  & Principal Accounting Officer)




                                               Director                                       April 1, 1999
- ------------------------------
Julio E. Heurtematte, Jr.




                                               Director                                       April 1, 1999
- --------------------------
Malcolm M.B. Sterrett
</TABLE>

<PAGE>


                              Telos Corporation
                                Exhibit Index


<TABLE>
<CAPTION>


 Exhibit
 Number                        Exhibit Name                           Page
 ------                        ------------                           ----
  <S>               <C>                                                <C>
  10.86             Series D Senior Subordinated Unsecured Note        
                    due October 1, 2000 as of November 20, 1998
                    between  Telos  Corporation (Maryland)  and 
                    Foreign  and Colonial  Enterprise Trust PLC 

  10.87             Series D Senior Subordinated Unsecured Note       
                    due October 1, 2000 as of November 20, 1998
                    between  Telos  Corporation  (Maryland) and
                    Foreign  and  Colonial  Enterprise Trust LP

  10.88             Common   Stock   Purchase  Series D Warrant 
                    between  Telos   Corporation (Maryland) and
                    Foreign and  Colonial  Enterprise Trust PLC

  10.89             Common  Stock  Purchase  Series  D  Warrant 
                    between  Telos  Corporation  (Maryland) and
                    Foreign and  Colonial  Enterprise  Trust LP

  10.90             Form of Stock Purchase Agreement
</TABLE>


     THIS  NOTE HAS NOT BEEN  REGISTERED  UNDER  THE  SECURITIES  ACT OF 1933 OR
APPLICABLE  STATE  SECURITIES LAWS AND MAY NOT BE SOLD,  TRANSFERRED OR ASSIGNED
UNLESS IT IS SO REGISTERED OR AN EXEMPTION FROM  REGISTRATION IS AVAILABLE UNDER
SAID ACT AND LAWS.  THIS NOTE IS  SUBORDINATE  AND JUNIOR IN RIGHT OF PAYMENT TO
SENIOR  INDEBTEDNESS  DUE TO  NATIONSBANK,  N.A.  AND/OR  CERTAIN OTHER BANKS OR
FINANCIAL INSTITUTIONS.

                                                             Ashburn, Virginia
                                                             November 20, 1998


         SERIES D SENIOR SUBORDINATED UNSECURED NOTE DUE OCTOBER 1, 2000

     FOR VALUE RECEIVED, Telos Corporation, a Maryland corporation, with offices
at 19886 Ashburn Road, Ashburn,  Virginia 20147 (hereinafter referred to as "the
Borrower" or the "Company"),  promises to pay to the order of Foreign & Colonial
Enterprise Trust PLC,  (hereinafter referred to as "F&C Enterprise Trust PLC" or
"Lender"),  at c/o  Berkeley  Square  House,  Berkeley  Square,  London W1X 5PA,
England, or at such other offices or at such other place or places as the holder
hereof may from time to time  designate  in writing,  the  principal  sum of One
Million Four Hundred  Forty  Thousand  Dollars  ($1,440,000)  on October 1, 2000
together  with  interest  on the  principal  amount  hereof  from  time  to time
outstanding at the rate hereinafter provided until paid in full.

     This is one of a series of the Company's Notes known as its Series D Senior
Subordinated  Unsecured  Notes Due  October 1, 2000  (collectively  referred  to
herein as the "Series D Notes", all of like tenor,  except as to the identifying
number and principal amount thereof.  The Series D Notes have been issued in the
aggregate principal amount of $1,800,000.

                                I. GENERAL TERMS

     1.1 Interest  only shall be payable at the rate of fourteen  percent  (14%)
per annum, on the principal  balance of this Note from time to time  outstanding
from and after the date hereof,  and shall be due and payable  quarterly,  until
the principal has been paid in full, on the first day of April,  July,  October,
and January in each year.  Interest  shall accrue from the date hereof,  but the
first interest  payment shall not be due until April 1, 1999. Such payment shall
include  all  interest  accrued  from the  date  hereof  until  the date of such
interest payment.

     1.2 If not sooner paid, the outstanding and unpaid principal  balance shall
be paid on October 1, 2000,  together  with accrued and unpaid  interest on this
Note. In addition, interest shall be payable at the rate provided in Section 1.1
hereof on any Payment  Premium  from the date such  premium is due until paid in
full.

     1.3  Principal,  premium,  if any, and interest on this Note are payable in
lawful money of the United States.  The principal of this Note may be prepaid at
any time after ten (10) days' written notice to the Lender, in whole or in part,
and shall be accompanied  by payment in cash of all accrued and unpaid  interest
on the  amount so  prepaid,  together  with,  to the extent  not  prohibited  by
applicable law, a Payment Premium.

     1.4 In the event of a Public  Offering of the common  stock of the Company,
or in the event of a Refinancing,  the principal then  outstanding  shall become
immediately due and payable, together with, accrued and unpaid interest thereon,
and, to the extent not  prohibited  by applicable  law, a Payment  Premium in an
amount  equal to the lesser of (i) the Net  Proceeds of such Public  Offering or
Refinancing,  or (ii) the amount determined in accordance with 1.6(iv). The Net
Proceeds  shall be applied  toward the  payment  of the  outstanding  and unpaid
principal balance of the Notes,  accrued and unpaid interest thereon and, to the
extent not prohibited by applicable law, such Payment Premium.

     1.5 In the event of a Merger or Dissolution, the principal then outstanding
shall  become  immediately  due and  payable,  together  with accrued and unpaid
interest  thereon and, to the extent not prohibited by applicable law, a Payment
Premium in the amount determined in accordance with 1.6(iv).

    1.6      Definitions.

     (i) "Public Offering" shall mean the distribution and sale of the Company's
common stock (some of the  proceeds of which sale are  available to the Company)
pursuant to a registration  statement  (other than a  registration  statement on
Form S-4 or Form S-8) which has been filed with the U.S. Securities and Exchange
Commission and become effective.

     (ii)  "Refinancing"  shall mean a sale of  securities  of the Company which
results in Net Proceeds to the Company in excess of $10,000,000,  other than (a)
obligations  for  borrowed  money due and payable  within one year which are not
extended,  renewed or refinanced  beyond such due date; or (b) other obligations
for money borrowed money from NationsBank and/or its successors, substitutes and
participants and their respective assigns and any refinancing thereof.

     (iii) "Net Proceeds"  shall mean the proceeds to the Company after expenses
of sale and  distribution,  including  discounts,  commissions and brokerage and
legal fees.

     (iv) "Payment Premium" shall, except as otherwise provided in 1.4, mean an
amount equal to 13.5% per annum, compounded semiannually from and after the date
hereof until paid, on the principal amount of this Note outstanding from time to
time until the time of payment.

     (v) "Merger"  shall mean a merger,  consolidation  or other  combination to
which the Company or any subsidiary is a party,  in which the Company is not the
surviving  corporation  or  which  results  in the  acquisition  of  "beneficial
ownership" of securities  of the Company  representing  50% or more of the total
number of votes that may be cast for the  election of  directors by any "person"
or "group"  (as such  terms are  defined  in Rule  13(d)  promulgated  under the
Securities Exchange Act of 1934, as amended), or a sale by the Company of all or
substantially all of its assets.

     (vi) "Dissolution" shall mean the adoption by the Board of Directors and/or
the  shareholders  of the Company of a  resolution  to dissolve  the Company and
liquidate its assets,  the filing by the Company of articles of dissolution or a
similar application for dissolution with the appropriate officer of the state of
incorporation  of the  Company,  the  entry of an order or other  action by such
state  dissolving the Company,  or the adoption by the Board of Directors or the
shareholders of the Company of a plan of liquidation or a resolution approving a
liquidating distribution of the Company's assets, whichever shall first occur.

     1.7 At any time after the issuance of this Note,  the holders of a majority
in outstanding  principal  amount of the Series D Notes,  the Series C Notes and
the Series B Senior Secured Notes issued by the Company may request, in writing,
that the Company  effect a Public  Offering,  at the Company's cost and expense.
Upon  receipt of any such  request,  the  Company  shall,  as  expeditiously  as
possible,  use its best efforts to effect a Public Offering,  with the objective
of  realizing  Net Proceeds  sufficient  to pay the  then-outstanding  principal
balance  of the  Series D Notes,  the  Series  C Notes  and the  Series B Senior
Secured Notes together with accrued, unpaid interest thereon, and, to the extent
not prohibited by applicable law, a Payment  Premium in an amount  determined in
accordance with 1.4.

     1.8 If any payment of  principal  or interest on this Note shall become due
on a Saturday,  Sunday,  or legal holiday under the laws of the  Commonwealth of
Virginia,  or any other day on which banking institutions in the Commonwealth of
Virginia are obligated or authorized  by law or executive  order to close,  such
payment  shall be made on the next  succeeding  business day in Virginia and any
such  extended  time of the  payment  of  principal  shall  not be  included  in
computing compound interest in connection with such payment.

     1.9 Upon receipt by the Borrower of evidence reasonably  satisfactory to it
of the  mutilation,  destruction,  loss or theft of this Note, the Borrower will
make and  deliver  to the owner a new note of like tenor in lieu of this Note so
mutilated, destroyed, lost or stolen.

     1.10 Payments made on account  hereof shall be applied first to accrued and
unpaid interest, then to principal, and then to the Payment Premium, if any.

     1.11 All  payments  made by the Company on account of the Series D Notes or
any of them shall be made pro rata, in proportion to the  outstanding  principal
balance  of each of the  Series  D Notes  outstanding  at the  time of any  such
payment.

<PAGE>
                                           II. DEFAULT

     2.1 It is expressly  agreed by Borrower that the following  shall be deemed
to be Events of Default  under this Note:  (a) the failure to pay, when due, any
amount of principal,  or not more than five days after due date of any amount of
premium,  if any, or interest on this Note or the Series B or Series C Notes, or
(b) in the event the  Borrower  files any  petition,  or any  petition  is filed
against it and not  dismissed  within sixty (60) days,  under any  bankruptcy or
insolvency law or for the  appointment of a receiver for  substantially  all its
assets or in the event the Borrower  makes a general  assignment for the benefit
of  creditors,  (c) or any failure by the  Borrower to perform or observe any of
the other covenants,  agreements or provisions to be performed or observed by it
under this Note or the Series B or Series C Notes, and such default shall not be
rectified or cured within 10 days after written  notice thereof by the Lender to
the  Company,  and (d) an event of  default  as  specified  in the  Amended  and
Restated  Credit  Agreement,  as amended  from time to time,  among the Company,
Telos Corporation (a California corporation) and NationsBank,  N.A. (the "Credit
Agreement")  shall have occurred and be continuing,  if (and only if) such event
results in  acceleration of the maturity of the  indebtedness  under such Credit
Agreement and such acceleration continues in effect.

     2.2  If an  Event  of  Default  occurs,  the  Lender,  at his  option,  may
accelerate  this Note and may by written  notice to Borrower  declare the entire
unpaid principal amount of this Note and all interest accrued and unpaid thereon
to be immediately due and payable  whereupon the unpaid principal amount and all
such accrued  interest  shall become and be forthwith  due and payable,  without
presentment,  demand,  protest or further notice of any kind. The failure of the
Lender to give such notice shall,  in no event, be deemed a waiver of any of the
Lender rights hereunder as long as the Event of Default continues.

     2.3 Upon default in the payment of the  principal of this Note or any other
sum  payable  hereunder  when due upon  demand,  at  maturity  or by  reason  of
acceleration  of maturity,  or upon the occurrence of any other Event of Default
hereunder Borrower agrees to pay all reasonable costs of collection  incurred by
the holder of the Note,  including  reasonable  attorneys' fees, whether suit is
brought or not,  and all other  costs and  expenses  reasonably  connected  with
collection of the indebtedness evidenced hereby.

                                  III. SUBORDINATION

     3.1 Payment of the principal,  or interest and Payment Premium on this Note
are  subordinate  and  subject  in right of  payment  to the prior  indefeasible
payment in full in cash or cash equivalents of all Senior Indebtedness, and each
holder  of this  Note by  such  holder's  acceptance  hereof,  acknowledges  and
confirms such subordination.  "Senior Indebtedness" means all present and future
obligations,  liabilities  and  indebtedness  of the  Company  of every type and
nature,  currently or hereafter  due,  incurred or created,  arising under or in
connection  with  the  Credit  Agreement  or  any  refinancing  loan  documents,
including,  without  limitation  (i) all  Obligations  (as defined in the Credit
Agreement) and any refinancing  thereof,  (ii) all interest  provided for in the
Credit  Agreement,  or  any  refinancing  loan  documents  (including,   without
limitation,  interest  arising  prior  to  and  after  the  commencement  of any
bankruptcy or similar proceeding in which the Company is the debtor,  whether or
not such interest is an allowed claim in such proceeding) at the rates specified
in the Credit Agreement or any refinancing  loan documents;  and (iii) all fees,
charges, expenses,  indemnities and other amounts payable under or incidental to
the Credit Agreement  (excluding any such amounts payable in respect of warrants
or other equity-related obligations or earning participations that may be issued
by  the  Company).  Notwithstanding  the  foregoing,  Senior  Indebtedness  held
(whether as a result of  subrogation  or otherwise)  by the Company,  any of the
subsidiaries  or any other  affiliate  of the  Company  (whether  as a result of
subrogation or otherwise)  (Telos,  the subsidiaries and any other affiliates of
the Company being collectively referred to herein as "Affiliated Parties") or by
any person who has acquired Senior Indebtedness,  directly or indirectly,  which
has been held by any of the Affiliated  Parties,  shall not  constitute  "Senior
Indebtedness"  under this Agreement  (other than under this sentence) until such
time as all Senior  Indebtedness  held by Persons other than Affiliated  Parties
has  been  indefeasibly  paid  in full  in  cash  or  cash  equivalents,  and no
Affiliated  Party or Person  acquiring  Senior  Indebtedness  from an Affiliated
Party  shall  acquire  any rights  hereunder  by virtue of holding  such  Senior
Indebtedness.
<PAGE>

     This Note shall be construed and enforced in accordance  with, and governed
by the laws of, the  Commonwealth of Virginia  without giving effect to conflict
of laws principles.

     The parties hereto,  including the undersigned  Borrower and all guarantors
and endorsers,  hereby waive presentment,  demand, notice, protest and all other
demands and notices in connection with the delivery, acceptance, performance and
enforcement  of this  Note,  and assent to  extensions  of time of  payment,  or
forbearance or other indulgence without notice.

                                                           TELOS CORPORATION



                                       By:/s/              William L.P. Brownley
                                       Name:               William L.P. Brownley
                                       Title:   Vice President & General Counsel


Series D Senior Subordinated Unsecured Note
Due October 1, 2000
Series D Senior Subordinated Unsecured Note
Due October 1, 2000
     THIS  NOTE HAS NOT BEEN  REGISTERED  UNDER  THE  SECURITIES  ACT OF 1933 OR
APPLICABLE  STATE  SECURITIES LAWS AND MAY NOT BE SOLD,  TRANSFERRED OR ASSIGNED
UNLESS IT IS SO REGISTERED OR AN EXEMPTION FROM  REGISTRATION IS AVAILABLE UNDER
SAID ACT AND LAWS.  THIS NOTE IS  SUBORDINATE  AND JUNIOR IN RIGHT OF PAYMENT TO
SENIOR  INDEBTEDNESS  DUE TO  NATIONSBANK,  N.A.  AND/OR  CERTAIN OTHER BANKS OR
FINANCIAL INSTITUTIONS.

     Ashburn, Virginia November 20, 1998

          SERIES D SENIOR SUBORDINATED UNSECURED NOTE DUE OCTOBER 1, 2000

     FOR VALUE RECEIVED, Telos Corporation, a Maryland corporation, with offices
at 19886 Ashburn Road, Ashburn,  Virginia 20147 (hereinafter referred to as "the
Borrower" or the "Company"),  promises to pay to the order of Foreign & Colonial
Enterprise  Trust  Limited  Partnership,   (hereinafter   referred  to  as  "F&C
Enterprise  Trust LP" or  "Lender"),  at c/o  Berkeley  Square  House,  Berkeley
Square, London W1X 5PA, England, or at such other offices or at such other place
or places as the holder hereof may from time to time  designate in writing,  the
principal sum of Three Hundred Sixty Thousand  Dollars  ($360,000) on October 1,
2000 together  with  interest on the  principal  amount hereof from time to time
outstanding at the rate hereinafter provided until paid in full.

     This is one of a series of the Company's Notes known as its Series D Senior
Subordinated  Unsecured  Notes Due  October 1, 2000  (collectively  referred  to
herein as the "Series D Notes", all of like tenor,  except as to the identifying
number and principal amount thereof.  The Series D Notes have been issued in the
aggregate principal amount of $1,800,000.

                              I. GENERAL TERMS

     1.1 Interest  only shall be payable at the rate of fourteen  percent  (14%)
per annum, on the principal  balance of this Note from time to time  outstanding
from and after the date hereof,  and shall be due and payable  quarterly,  until
the principal has been paid in full, on the first day of April,  July,  October,
and January in each year.  Interest  shall accrue from the date hereof,  but the
first interest  payment shall not be due until April 1, 1999. Such payment shall
include  all  interest  accrued  from the  date  hereof  until  the date of such
interest payment.

     1.2 If not sooner paid, the outstanding and unpaid principal  balance shall
be paid on October 1, 2000,  together  with accrued and unpaid  interest on this
Note. In addition, interest shall be payable at the rate provided in Section 1.1
hereof on any Payment  Premium  from the date such  premium is due until paid in
full.

     1.3  Principal,  premium,  if any, and interest on this Note are payable in
lawful money of the United States.  The principal of this Note may be prepaid at
any time after ten (10) days' written notice to the Lender, in whole or in part,
and shall be accompanied  by payment in cash of all accrued and unpaid  interest
on the  amount so  prepaid,  together  with,  to the extent  not  prohibited  by
applicable law, a Payment Premium.

     1.4 In the event of a Public  Offering of the common  stock of the Company,
or in the event of a Refinancing,  the principal then  outstanding  shall become
immediately due and payable, together with, accrued and unpaid interest thereon,
and, to the extent not  prohibited  by applicable  law, a Payment  Premium in an
amount  equal to the lesser of (i) the Net  Proceeds of such Public  Offering or
Refinancing,  or (ii) the amount determined in accordance with 1.6(iv). The Net
Proceeds  shall be applied  toward the  payment  of the  outstanding  and unpaid
principal balance of the Notes,  accrued and unpaid interest thereon and, to the
extent not prohibited by applicable law, such Payment Premium.

     1.5 In the event of a Merger or Dissolution, the principal then outstanding
shall  become  immediately  due and  payable,  together  with accrued and unpaid
interest  thereon and, to the extent not prohibited by applicable law, a Payment
Premium in the amount determined in accordance with 1.6(iv).
<PAGE>
     1.6      Definitions.

     (i) "Public Offering" shall mean the distribution and sale of the Company's
common stock (some of the  proceeds of which sale are  available to the Company)
pursuant to a registration  statement  (other than a  registration  statement on
Form S-4 or Form S-8) which has been filed with the U.S. Securities and Exchange
Commission and become effective.

     (ii)  "Refinancing"  shall mean a sale of  securities  of the Company which
results in Net Proceeds to the Company in excess of $10,000,000,  other than (a)
obligations  for  borrowed  money due and payable  within one year which are not
extended,  renewed or refinanced  beyond such due date; or (b) other obligations
for money borrowed money from NationsBank and/or its successors, substitutes and
participants and their respective assigns and any refinancing thereof.

     (iii) "Net Proceeds"  shall mean the proceeds to the Company after expenses
of sale and  distribution,  including  discounts,  commissions and brokerage and
legal fees.

     (iv) "Payment Premium" shall, except as otherwise provided in 1.4, mean an
amount equal to 13.5% per annum, compounded semiannually from and after the date
hereof until paid, on the principal amount of this Note outstanding from time to
time until the time of payment.

     (v) "Merger"  shall mean a merger,  consolidation  or other  combination to
which the Company or any subsidiary is a party,  in which the Company is not the
surviving  corporation  or  which  results  in the  acquisition  of  "beneficial
ownership" of securities  of the Company  representing  50% or more of the total
number of votes that may be cast for the  election of  directors by any "person"
or "group"  (as such  terms are  defined  in Rule  13(d)  promulgated  under the
Securities Exchange Act of 1934, as amended), or a sale by the Company of all or
substantially all of its assets.

     (vi) "Dissolution" shall mean the adoption by the Board of Directors and/or
the  shareholders  of the Company of a  resolution  to dissolve  the Company and
liquidate its assets,  the filing by the Company of articles of dissolution or a
similar application for dissolution with the appropriate officer of the state of
incorporation  of the  Company,  the  entry of an order or other  action by such
state  dissolving the Company,  or the adoption by the Board of Directors or the
shareholders of the Company of a plan of liquidation or a resolution approving a
liquidating distribution of the Company's assets, whichever shall first occur.

     1.7 At any time after the issuance of this Note,  the holders of a majority
in outstanding  principal  amount of the Series D Notes,  the Series C Notes and
the Series B Senior Secured Notes issued by the Company may request, in writing,
that the Company  effect a Public  Offering,  at the Company's cost and expense.
Upon  receipt of any such  request,  the  Company  shall,  as  expeditiously  as
possible,  use its best efforts to effect a Public Offering,  with the objective
of  realizing  Net Proceeds  sufficient  to pay the  then-outstanding  principal
balance  of the  Series D Notes,  the  Series  C Notes  and the  Series B Senior
Secured Notes together with accrued, unpaid interest thereon, and, to the extent
not prohibited by applicable law, a Payment  Premium in an amount  determined in
accordance with 1.4.

     1.8 If any payment of  principal  or interest on this Note shall become due
on a Saturday,  Sunday,  or legal holiday under the laws of the  Commonwealth of
Virginia,  or any other day on which banking institutions in the Commonwealth of
Virginia are obligated or authorized  by law or executive  order to close,  such
payment  shall be made on the next  succeeding  business day in Virginia and any
such  extended  time of the  payment  of  principal  shall  not be  included  in
computing compound interest in connection with such payment.

     1.9 Upon receipt by the Borrower of evidence reasonably  satisfactory to it
of the  mutilation,  destruction,  loss or theft of this Note, the Borrower will
make and  deliver  to the owner a new note of like tenor in lieu of this Note so
mutilated, destroyed, lost or stolen.

     1.10 Payments made on account  hereof shall be applied first to accrued and
unpaid interest, then to principal, and then to the Payment Premium, if any.

     1.11 All  payments  made by the Company on account of the Series D Notes or
any of them shall be made pro rata, in proportion to the  outstanding  principal
balance  of each of the  Series  D Notes  outstanding  at the  time of any  such
payment.
<PAGE>

                                 II. DEFAULT

     2.1 It is expressly  agreed by Borrower that the following  shall be deemed
to be Events of Default  under this Note:  (a) the failure to pay, when due, any
amount of principal,  or not more than five days after due date of any amount of
premium,  if any, or interest on this Note or the Series B or Series C Notes, or
(b) in the event the  Borrower  files any  petition,  or any  petition  is filed
against it and not  dismissed  within sixty (60) days,  under any  bankruptcy or
insolvency law or for the  appointment of a receiver for  substantially  all its
assets or in the event the Borrower  makes a general  assignment for the benefit
of  creditors,  (c) or any failure by the  Borrower to perform or observe any of
the other covenants,  agreements or provisions to be performed or observed by it
under this Note or the Series B or Series C Notes, and such default shall not be
rectified or cured within 10 days after written  notice thereof by the Lender to
the  Company,  and (d) an event of  default  as  specified  in the  Amended  and
Restated  Credit  Agreement,  as amended  from time to time,  among the Company,
Telos Corporation (a California corporation) and NationsBank,  N.A. (the "Credit
Agreement")  shall have occurred and be continuing,  if (and only if) such event
results in  acceleration of the maturity of the  indebtedness  under such Credit
Agreement and such acceleration continues in effect.

     2.2  If an  Event  of  Default  occurs,  the  Lender,  at his  option,  may
accelerate  this Note and may by written  notice to Borrower  declare the entire
unpaid principal amount of this Note and all interest accrued and unpaid thereon
to be immediately due and payable  whereupon the unpaid principal amount and all
such accrued  interest  shall become and be forthwith  due and payable,  without
presentment,  demand,  protest or further notice of any kind. The failure of the
Lender to give such notice shall,  in no event, be deemed a waiver of any of the
Lender rights hereunder as long as the Event of Default continues.

     2.3 Upon default in the payment of the  principal of this Note or any other
sum  payable  hereunder  when due upon  demand,  at  maturity  or by  reason  of
acceleration  of maturity,  or upon the occurrence of any other Event of Default
hereunder Borrower agrees to pay all reasonable costs of collection  incurred by
the holder of the Note,  including  reasonable  attorneys' fees, whether suit is
brought or not,  and all other  costs and  expenses  reasonably  connected  with
collection of the indebtedness evidenced hereby.

                                 III. SUBORDINATION

     3.1 Payment of the principal,  or interest and Payment Premium on this Note
are  subordinate  and  subject  in right of  payment  to the prior  indefeasible
payment in full in cash or cash equivalents of all Senior Indebtedness, and each
holder  of this  Note by  such  holder's  acceptance  hereof,  acknowledges  and
confirms such subordination.  "Senior Indebtedness" means all present and future
obligations,  liabilities  and  indebtedness  of the  Company  of every type and
nature,  currently or hereafter  due,  incurred or created,  arising under or in
connection  with  the  Credit  Agreement  or  any  refinancing  loan  documents,
including,  without  limitation  (i) all  Obligations  (as defined in the Credit
Agreement) and any refinancing  thereof,  (ii) all interest  provided for in the
Credit  Agreement,  or  any  refinancing  loan  documents  (including,   without
limitation,  interest  arising  prior  to  and  after  the  commencement  of any
bankruptcy or similar proceeding in which the Company is the debtor,  whether or
not such interest is an allowed claim in such proceeding) at the rates specified
in the Credit Agreement or any refinancing  loan documents;  and (iii) all fees,
charges, expenses,  indemnities and other amounts payable under or incidental to
the Credit Agreement  (excluding any such amounts payable in respect of warrants
or other equity-related obligations or earning participations that may be issued
by  the  Company).  Notwithstanding  the  foregoing,  Senior  Indebtedness  held
(whether as a result of  subrogation  or otherwise)  by the Company,  any of the
subsidiaries  or any other  affiliate  of the  Company  (whether  as a result of
subrogation or otherwise)  (Telos,  the subsidiaries and any other affiliates of
the Company being collectively referred to herein as "Affiliated Parties") or by
any person who has acquired Senior Indebtedness,  directly or indirectly,  which
has been held by any of the Affiliated  Parties,  shall not  constitute  "Senior
Indebtedness"  under this Agreement  (other than under this sentence) until such
time as all Senior  Indebtedness  held by Persons other than Affiliated  Parties
has  been  indefeasibly  paid  in full  in  cash  or  cash  equivalents,  and no
Affiliated  Party or Person  acquiring  Senior  Indebtedness  from an Affiliated
Party  shall  acquire  any rights  hereunder  by virtue of holding  such  Senior
Indebtedness.
<PAGE>

     This Note shall be construed and enforced in accordance  with, and governed
by the laws of, the  Commonwealth of Virginia  without giving effect to conflict
of laws principles.

     The parties hereto,  including the undersigned  Borrower and all guarantors
and endorsers,  hereby waive presentment,  demand, notice, protest and all other
demands and notices in connection with the delivery, acceptance, performance and
enforcement  of this  Note,  and assent to  extensions  of time of  payment,  or
forbearance or other indulgence without notice.

                                       TELOS CORPORATION



                                                 By:  /s/ William L. P. Brownley
                                               Name:      William L. P. Brownley
                                        Title:  Vice President & General Counsel
                                   



     THIS WARRANT AND THE SHARES  ISSUABLE  HEREUNDER  HAVE NOT BEEN  REGISTERED
UNDER THE SECURITIES ACT OF 1933 OR APPLICABLE STATE SECURITIES LAWS AND MAY NOT
BE SOLD, TRANSFERRED OR ASSIGNED UNLESS IT IS SO REGISTERED OR AN EXEMPTION FROM
REGISTRATION IS AVAILABLE UNDER SAID ACT AND LAWS.


                               TELOS CORPORATION
                             COMMON STOCK PURCHASE
                                SERIES D WARRANT
     This certifies  that,  for value  received,  Foreign & Colonial  Enterprise
Trust PLC, c/o Berkeley Square House,  Berkeley Square, London W1X 5PA, England,
is  entitled  to  purchase  and  receive  from  Telos  Corporation,  a  Maryland
corporation (the "Company"),  during the period hereinafter provided,  1,200,000
fully paid and  non-assessable  shares of the $.01 par value common voting stock
of the Company (the "Common  Stock") upon  surrender  hereof,  at the  principal
office of the  Company in Ashburn,  Virginia,  and  simultaneous  payment of the
purchase  price of $.01 for each share of the Common  Stock so to be  purchased;
such number of shares and such purchase price per share being subject,  however,
to adjustment as hereinafter provided. The purchase price per share, as adjusted
from time to time, is hereinafter referred to as the "Purchase Price."

     This Warrant shall be exercisable  commencing November 20, 1998, that being
the issuance date of that certain  Series D Senior  Subordinated  Unsecured Note
Due  October 1,  2000,  issued by the  Company  to the  Holder of this  Series D
Warrant, and shall expire on October 1, 2000.

1.       Purchase Price Adjustments.

     a. General.  The Purchase Price shall be subject to adjustment from time to
time pursuant to the terms of this Section 1.

     b.  Recapitalizations.  If outstanding shares of the Company's Common Stock
shall be  subdivided  into a greater  number of shares or a  dividend  in Common
Stock shall be paid in respect of Common  Stock,  the  Purchase  Price in effect
immediately  prior to such  subdivision  or at the record date of such  dividend
shall  simultaneously  with the effectiveness of such subdivision or immediately
after  the  record  date  of  such  dividend  be  proportionately   reduced.  If
outstanding  shares of Common Stock shall be combined  into a smaller  number of
shares,  the  Purchase  Price in effect  immediately  prior to such  combination
shall,   simultaneously   with  the  effectiveness  of  such   combination,   be
proportionately increased.

     c.  Mergers,  etc.  If there  shall  occur any  capital  reorganization  or
reclassification of the Company's Common Stock (other than a change in par value
or a subdivision or combination as provided for in Subsection 1b, above), or any
consolidation  or merger of the Company with or into another  corporation,  or a
transfer of all or substantially all of the assets of the Company, then, as part
of any such reorganization, reclassification,  consolidation, merger or sale, as
the case may be, lawful provision shall be made so that the registered Holder of
this Warrant shall have the right thereafter to receive upon the exercise hereof
the kind and amount of shares of stock or other  securities  or  property  which
such registered Holder would have been entitled to receive if, immediately prior
to any such reorganization, reclassification,  consolidation, merger or sale, as
the case may be, such registered  Holder had held the number of shares of Common
Stock which were then purchasable upon the exercise of this Warrant. In any such
case,  appropriate  adjustment  (as  reasonably  determined in good faith by the
Board of  Directors  of the  Company)  shall be made in the  application  of the
provisions set forth herein with respect to the rights and interests  thereafter
of the registered Holder of this Warrant,  such that the provisions set forth in
this Section 1 (including  provisions with respect to adjustment of the Purchase
Price) shall thereafter be applicable,  as nearly as is reasonably  practicable,
in relation to any shares of stock or other  securities  or property  thereafter
deliverable upon the exercise of this Warrant.

     d.  Certificate of  Adjustment.  When any adjustment is required to be made
pursuant to this Section 1, the Company shall  promptly  mail to the  registered
Holder a certificate  setting forth the Purchase Price after such adjustment and
setting forth a brief  statement of the facts  requiring such  adjustment.  Such
certificate  shall  also  set  forth  the  kind  and  amount  of  stock or other
securities or property into which this Warrant  shall be  exercisable  following
such adjustment.

     2. Registration Rights.
     a. Certain Definitions.  As used in this Warrant, the following terms shall
have the following respective meanings:

     "Commission"  means the  Securities and Exchange  Commission,  or any other
Federal agency at the time administering the Securities Act.

     "Common  Stock" means the common  stock,  $.01 par value per share,  of the
Company.

     "Exchange  Act" means the Securities  Exchange Act of 1934, as amended,  or
any similar  Federal  statute,  and the rules and  regulations of the Commission
issued under such Act, as they each may, from time to time, be in effect.

     "Registration  Statement"  means  a  registration  statement  filed  by the
Company  with the  Commission  for a public  offering  and sale of Common  Stock
(other  than a  registration  statement  on  Form  S-8 or  Form  S-4,  or  their
successors, or any other form for a similar limited purpose, or any registration
statement  covering  only  securities  proposed  to be  issued in  exchange  for
securities or assets of another corporation).

     "Registration Expenses" means the expenses described in Subsection e.

     "Registrable  Shares"  means the shares of Common  Stock issued or issuable
upon   exercise   of  this   Warrant   or  other   Series  D   Warrants   issued
contemporaneously;  provided,  however,  that  shares of Common  Stock which are
Registrable  Shares shall cease to be  Registrable  Shares upon any sale of such
Registrable  Shares  pursuant to a Registration  Statement or Rule 144 under the
Securities  Act.  Wherever  reference  is made in this  Warrant  to a request or
consent  of  holders  of  a  certain  percentage  of  Registrable   Shares,  the
determination  of such percentage  shall include shares of Common Stock issuable
upon exercise of the Warrant even if such exercise  conversion  has not yet been
effected.

     "Securities  Act" means the  Securities  Act of 1933,  as  amended,  or any
similar Federal statute,  and the rules and regulations of the Commission issued
under such Act, as they each may, from time to time, be in effect.

     "Stockholders"  means the  Holders  and any persons or entities to whom the
rights  granted  under  this  Warrant  are  transferred  by any  Holders,  their
successors or assigns pursuant to Section 4 hereof.

     b. Required Registrations.
     (1) At any time after the Company  becomes  eligible to file a Registration
Statement on Form S-3 (or any successor form relating to secondary offerings), a
Stockholder  or  Stockholders  holding  in the  aggregate  at  least  20% of the
Registrable  Shares  issued  pursuant  to the Series D Warrants  may request the
Company,  in writing,  to effect the registration on Form S-3 (or such successor
form), of Registrable Shares having an aggregate offering price of at least Five
Hundred  Thousand  Dollars  ($500,000)  (based on the then current public market
price).  Upon  receipt of any such  request,  the Company  shall  promptly  give
written  notice  of  such  proposed  registration  to  all  Stockholders.   Such
Stockholders  shall  have the right,  by giving  written  notice to the  Company
within 30 days after the Company provides its notice,  to elect to have included
in such registration  such of their Registrable  Shares as such Stockholders may
request in such notice of election;  provided that if the  underwriter  (if any)
managing the offering determines that, because of marketing factors,  all of the
Registrable  Shares  requested to be registered by all  Stockholders  may not be
included in the offering,  then all Stockholders who have requested registration
shall  participate  in the  registration  pro  rata  based  upon the  number  of
Registrable Shares which they have requested to be so registered. Thereupon, the
Company shall, as expeditiously as possible,  use its best efforts to effect the
registration  on Form S-3 (or such  successor  form) of all  Registrable  Shares
which the Company has been requested to so register.

     (2) The Company  shall not be required to effect more than 3  registrations
pursuant to Subparagraph  (1) above, nor shall the Company be required to effect
a registration  pursuant to  Subparagraph  (1) above within six months after the
effective date of any other Registration Statement of the Company (other than on
Form S-3, or S-8, or any successor form).

     (3) If at the time of any request to register  Registrable  Shares pursuant
to this Subsection b, the Company is engaged or has fixed plans to engage within
30 days of the time of the request in a registered  public  offering as to which
the Stockholders may include  Registrable  Shares pursuant to Subsection c or is
engaged in any other  activity  which,  in the good faith  determination  of the
Company's  Board of  Directors,  would be  adversely  affected by the  requested
registration to the material  detriment of the Company,  then the Company may at
its option direct that such request be delayed for a period not in excess of six
months from the effective date of such offering or the date of  commencement  of
such other material activity, as the case may be.

     c. Incidental Registration.

     (1) Whenever the Company  proposes to file a Registration  Statement (other
than  pursuant to  Subsection  b(1)) at any time and from time to time, it will,
prior to such filing,  give written notice to all  Stockholders of its intention
to do so and, upon the written  request of a Stockholder or  Stockholders  given
within 20 days after the Company provides such notice (which request shall state
the intended  method of disposition  of such  Registrable  Shares),  the Company
shall use its best efforts to cause all Registrable Shares which the Company has
been requested by such  Stockholder or Stockholders to register to be registered
under the Securities  Act to the extent  necessary to permit their sale or other
disposition in accordance with the intended methods of distribution specified in
the request of such Stockholder or Stockholders; provided that the Company shall
have the right to postpone or withdraw  any  registration  effected  pursuant to
this Subsection c without obligation to any Stockholder.

     (2) In connection with any  registration  under this Subsection c involving
an  underwriting,  the Company shall not be required to include any  Registrable
Shares in such  registration  unless the holders thereof accept the terms of the
underwriting as agreed upon between the Company and the underwriters selected by
it (provided that such terms must be consistent  with this  Warrant).  If in the
opinion of the  managing  underwriter  it is  appropriate  because of  marketing
factors  to limit  the  number  of  Registrable  Shares  to be  included  in the
offering, then the Company shall be required to include in the registration only
that  number of  Registrable  Shares,  if any,  which the  managing  underwriter
believes should be included therein.  If the number of Registrable  Shares to be
included in the offering in accordance with the foregoing is less than the total
number of shares which the holders of  Registrable  Shares have  requested to be
included, then the holders of Registrable Shares who have requested registration
and other  holders of securities  entitled to include them in such  registration
shall  participate in the registration pro rata based upon their total ownership
of shares of Common Stock (giving effect to the conversion  into Common Stock of
all securities convertible  thereinto).  If any holder would thus be entitled to
include more securities than such holder requested to be registered,  the excess
shall be  allocated  among  other  requesting  holders  pro  rata in the  manner
described in the preceding sentence.

     d. Registration Procedures.  If and whenever the Company is required by the
provisions of this Warrant to use its best efforts to effect the registration of
any of the Registrable Shares under the Securities Act, the Company shall:

     (1) file with the Commission a Registration  Statement with respect to such
Registrable Shares and use its best efforts to cause that Registration Statement
to become and remain effective;

     (2) as  expeditiously  as possible prepare and file with the Commission any
amendments  and  supplements  to the  Registration  Statement and the prospectus
included  in the  Registration  Statement  as  may  be  necessary  to  keep  the
Registration Statement effective,  in the case of a firm commitment underwritten
public  offering,  until each  underwriter has completed the distribution of all
securities  purchased  by it and, in the case of any other  offering,  until the
earlier of the sale of all Registrable  Shares covered thereby or 120 days after
the effective date thereof;

     (3) as expeditiously  as possible furnish to each selling  Stockholder such
reasonable  numbers  of  copies  of  the  prospectus,  including  a  preliminary
prospectus,  in conformity with the requirements of the Securities Act, and such
other documents as the selling  Stockholder  may reasonably  request in order to
facilitate the public sale or other disposition of the Registrable  Shares owned
by the selling Stockholder; and

     (4) as  expeditiously  as  possible  use its best  efforts to  register  or
qualify the Registrable  Shares covered by the Registration  Statement under the
securities  or Blue Sky laws of such  states as the selling  Stockholders  shall
reasonably  request,  and do any and all  other  acts  and  things  that  may be
necessary or  desirable to enable the selling  Stockholders  to  consummate  the
public sale or other disposition in such states of the Registrable  Shares owned
by the selling  Stockholder;  provided,  however,  that the Company shall not be
required  in  connection  with this  Subparagraph  (4) to  qualify  as a foreign
corporation  or  execute  a  general  consent  to  service  of  process  in  any
jurisdiction.

     If the Company  has  delivered  preliminary  or final  prospectuses  to the
selling  Stockholders  and after  having  done so the  prospectus  is amended to
comply with the  requirements  of the Securities Act, the Company shall promptly
notify the selling  Stockholders  and, if  requested,  the selling  Stockholders
shall  immediately  cease  making  offers of  Registrable  Shares and return all
prospectuses  to the Company.  The Company  shall  promptly  provide the selling
Stockholders  with revised  prospectuses  and,  following receipt of the revised
prospectuses,  the selling Stockholders shall be free to resume making offers of
the Registrable Shares.

     e. Allocation of Expenses.  The Company will pay all Registration  Expenses
of  all  registrations  under  this  Warrant;  provided,   however,  that  if  a
registration  under Subsection b is withdrawn at the request of the Stockholders
requesting such registration  (other than as a result of information  concerning
the  business or financial  condition of the Company  which is made known to the
Stockholders after the date on which such registration was requested) and if the
requesting  Stockholders  elect  not to  have  such  registration  counted  as a
registration requested under Subection b, the requesting  Stockholders shall pay
the Registration  Expenses of such  registration pro rata in accordance with the
number of their Registrable Shares included in such  registration.  For purposes
of this Subsection e, the term  "Registration  Expenses" shall mean all expenses
incurred by the  Company in  complying  with this  Warrant,  including,  without
limitation,  all registration and filing fees,  exchange listing fees,  printing
expenses, fees and expenses of counsel for the Company and the fees and expenses
of one counsel  selected by the selling  Stockholders  to represent  the selling
Stockholders,  state Blue Sky fees and expenses,  and the expense of any special
audits  incident  to  or  required  by  any  such  registration,  but  excluding
underwriting discounts, selling commissions and the fees and expenses of selling
Stockholders'  own counsel  (other than the counsel  selected to  represent  all
selling Stockholders).
<PAGE>

    f.       Indemnification and Contribution.

     (1) In the event of any registration of any of the Registrable Shares under
the Securities Act pursuant to this Warrant, the Company will indemnify and hold
harmless  the  seller  of such  Registrable  Shares,  each  underwriter  of such
Registrable  Shares,  and each other person, if any, who controls such seller or
underwriter within the meaning of the Securities Act or the Exchange Act against
any losses,  claims,  damages or  liabilities,  joint or several,  to which such
seller,   underwriter  or  controlling  person  may  become  subject  under  the
Securities  Act,  the  Exchange  Act,  state  securities  or  Blue  Sky  laws or
otherwise, insofar as such losses, claims, damages or liabilities (or actions in
respect  thereof) arise out of or are based upon any untrue statement or alleged
untrue  statement of any material fact contained in any  Registration  Statement
under which such  Registrable  Shares were registered  under the Securities Act,
any preliminary  prospectus or final  prospectus  contained in the  Registration
Statement,  or any amendment or supplement to such  Registration  Statement,  or
arise out of or are based  upon the  omission  or  alleged  omission  to state a
material fact required to be stated  therein or necessary to make the statements
therein not misleading;  and the Company will reimburse such seller, underwriter
and each such controlling person for any legal or any other expenses  reasonably
incurred by such seller,  underwriter or controlling  person in connection  with
investigating or defending any such loss,  claim,  damage,  liability or action;
provided,  however,  that the Company will not be liable in any such case to the
extent that any such loss, claim,  damage or liability arises out of or is based
upon any untrue  statement  or  omission  made in such  Registration  Statement,
preliminary prospectus or final prospectus, or any such amendment or supplement,
in reliance upon and in conformity with information furnished to the Company, in
writing,  by or on behalf of such  seller,  underwriter  or  controlling  person
specifically for use in the preparation thereof.

     (2) In the event of any registration of any of the Registrable Shares under
the Securities Act pursuant to this Warrant,  each seller of Registrable Shares,
severally and not jointly, will indemnify and hold harmless the Company, each of
its directors  and officers and each  underwriter  (if any) and each person,  if
any, who controls the Company or any such underwriter  within the meaning of the
Securities  Act or the  Exchange  Act,  against any losses,  claims,  damages or
liabilities,  joint or  several,  to  which  the  Company,  such  directors  and
officers,  underwriter  or  controlling  person  may  become  subject  under the
Securities  Act,  Exchange Act, state  securities or Blue Sky laws or otherwise,
insofar as such losses,  claims,  damages or liabilities  (or actions in respect
thereof) arise out of or are based upon any untrue  statement of a material fact
contained in any Registration Statement under which such Registrable Shares were
registered  under  the  Securities  Act,  any  preliminary  prospectus  or final
prospectus  contained  in  the  Registration  Statement,  or  any  amendment  or
supplement to the Registration  Statement, or arise out of or are based upon any
omission to state a material fact required to be stated  therein or necessary to
make the  statements  therein not  misleading,  if the statement or omission was
made in reliance upon and in conformity with information relating to such seller
furnished in writing to the Company by or on behalf of such seller  specifically
for use in  connection  with the  preparation  of such  Registration  Statement,
prospectus,  amendment or supplement; provided, however, that the obligations of
such Stockholders  hereunder shall be limited to an amount equal to the proceeds
to  each  Stockholder  of  Registrable  Shares  sold  in  connection  with  such
registration.

     (3) Each party  entitled to  indemnification  under this  Subsection f (the
"Indemnified  Party")  shall  give  notice  to the  party  required  to  provide
indemnification (the "Indemnifying Party") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought, and shall
permit the  Indemnifying  Party to assume  the  defense of any such claim or any
litigation  resulting  therefrom;  provided,  that counsel for the  Indemnifying
Party,  who shall  conduct  the  defense of such claim or  litigation,  shall be
approved by the  Indemnified  Party (whose  approval  shall not be  unreasonably
withheld); and, provided,  further, that the failure of any Indemnified Party to
give notice as provided herein shall not relieve the  Indemnifying  Party of its
obligations  under this Subsection f. The  Indemnified  Party may participate in
such defense at such party's expense;  provided,  however, that the Indemnifying
Party shall pay such expense if  representation of such Indemnified Party by the
counsel retained by the Indemnifying  Party would be inappropriate due to actual
or potential  differing  interests  between the Indemnified  Party and any other
party represented by such counsel in such proceeding.  No Indemnifying Party, in
the defense of any such claim or  litigation  shall,  except with the consent of
each  Indemnified  Party,  consent  to entry of any  judgment  or enter into any
settlement which does not include as an unconditional term thereof the giving by
the  claimant  or  plaintiff  to such  Indemnified  Party of a release  from all
liability in respect of such claim or litigation, and no Indemnified Party shall
consent to entry of any judgment or settle such claim or litigation  without the
prior written consent of the Indemnifying Party.
<PAGE>

     (4) In  order to  provide  for just  and  equitable  contribution  to joint
liability under the Securities Act in any case in which either (i) any holder of
Registrable  Shares  exercising  rights under this Warrant,  or any  controlling
person of any such holder,  makes a claim for  indemnification  pursuant to this
Subsection f but it is judicially  determined  (by the entry of a final judgment
or decree by a court of competent  jurisdiction  and the  expiration  of time to
appeal or the denial of the last right of appeal) that such  indemnification may
not be enforced in such case  notwithstanding  the fact that this  Subsection  f
provides  for  indemnification  in such  case,  or (ii)  contribution  under the
Securities  Act may be required on the part of any such selling  Stockholder  or
any such  controlling  person  in  circumstances  for which  indemnification  is
provided under this  Subsection f; then, in each such case, the Company and such
Stockholder  will  contribute  to  the  aggregate  losses,  claims,  damages  or
liabilities  to which they may be subject  (after  contribution  from others) in
such proportions so that such holder is responsible for the portion  represented
by the  percentage  that the public  offering  price of its  Registrable  shares
offered by the Registration  Statement bears to the public offering price of all
securities  offered  by  such  Registration   Statement,   and  the  Company  is
responsible  for the remaining  portion;  provided,  however,  that, in any such
case,  (A) no such holder will be required to contribute any amount in excess of
the  proceeds  to it of all  Registrable  Shares  sold  by it  pursuant  to such
Registration  Statement,  and (B) no  person  or  entity  guilty  of  fraudulent
misrepresentation,  within the meaning of Section 11(f) of the  Securities  Act,
shall be entitled to contribution from any person or entity who is not guilty of
such fraudulent misrepresentation.

     g. Indemnification with Respect to Underwritten Offering. In the event that
Registrable  Shares  are  sold  pursuant  to  a  Registration  Statement  in  an
underwritten offering pursuant to Subsection b, the Company agrees to enter into
an underwriting  agreement containing  customary  representations and warranties
with respect to the business and operations of an issuer of the securities being
registered  and  customary  covenants  and  agreements  to be  performed by such
issuer,  including  without  limitation  customary  provisions  with  respect to
indemnification by the Company of the underwriters of such offering.

     h. Information by Holder. Each Stockholder  including Registrable Shares in
any registration  shall furnish to the Company such  information  regarding such
Stockholder and the distribution proposed by such Stockholder as the Company may
reasonably  request in writing and as shall be required in  connection  with any
registration, qualification or compliance referred to in this Warrant.

     i. "Stand-Off"  Agreement".  Each Stockholder,  if requested by the Company
and the  managing  underwriter  of an offering by the Company of Common Stock or
other  securities of the Company  pursuant to a  Registration  Statement,  shall
agree not to sell publicly or otherwise  transfer or dispose of any  Registrable
Shares  or  other  securities  of the  Company  held by such  Stockholder  for a
specified  period of time (not to exceed 180 days)  following the effective date
of such Registration Statement; provided, that:

     (1) such  agreement  shall only apply to the first  Registration  Statement
covering  Common Stock to be sold on its behalf to the public in an underwritten
offering; and
     (2) all  Stockholders  holding not less than the number of shares of Common
Stock held by such Stockholder  (including  shares of Common Stock issuable upon
the conversion of Shares, or other convertible securities,  or upon the exercise
of options,  warrants or rights) and all officers  and  directors of the Company
enter into similar agreements.
     j. Termination.  All of the Company's  obligations to register  Registrable
Shares  under this Warrant  shall  terminate  on the tenth  anniversary  of this
Warrant.

     3. Exercise of Warrant.

     a. The Company  covenants  that it will at all times  maintain an available
and adequate  reserve of duly authorized but unissued share of its Common Stock,
free from  preemptive  rights,  sufficient  to effect the full  exercise of this
Warrant as herein provided, and that it will at all times maintain in full force
and effect an appropriate  permit of the Delaware  Commissioner  of Corporations
authorizing  the  issuance and sale by the Company of all shares of Common Stock
issuable upon exercise of this Warrant by the holder.

     The Company  covenants  that all shares of Common Stock  issuable  upon the
exercise of this Warrant will, upon issuance,  be validly issued, fully paid and
non-assessable,  and free from all taxes,  liens and charges with respect to the
issue thereof.

     The holder hereof may surrender  this Warrant for exchange at the principal
office of the Company.  Within a reasonable  time thereafter and without expense
(other than transfer taxes,  if any) to each holder,  the Company shall issue in
exchange  therefor,  in such  denominations  (of not less than 100  shares)  and
issued in such name or names as the holder shall  designate (if permitted by the
Federal  Securities laws and the relevant Blue Sky law(s),  as amended from time
to time), a new certificate or certificates dated the date hereof evidencing the
right to purchase  the same  aggregate  number of shares of Common  Stock as are
evidenced  hereby,  and otherwise  containing the same provisions and subject to
the same terms and conditions of this certificate.
<PAGE>

     Upon surrender of this Warrant at the office of the Company  accompanied by
payment of the  appropriate  Purchase  Price of the  Common  Stock in cash or as
otherwise  allowed  herein,  the Company shall  forthwith  cause to be executed,
issued and delivered to the holder of the Warrant a certificate or  certificates
for the  proper  number of shares of  common  stock or other  securities  of the
Company;  and the Company  covenants  that the  issuance of this  Warrant  shall
constitute full authority to those of its officers who are charged with the duty
of issuing  stock  certificates  to promptly  execute,  issue and deliver to the
holder of the Warrant the  necessary  certificate  for shares of Common Stock or
other securities of the Company required by such exercise.

     This  Warrant  may be  exercised  in  accordance  with its  terms  prior to
expiration  as a whole,  or from time to time in part.  In the event of  partial
exercise  of the  Warrant,  the  Company  shall,  in addition to delivery of the
securities  thereby  purchased,  deliver  to the  holder of the  Warrant,  a new
Warrant for the remaining shares then subject to the unexercised  portion of the
Warrant;  such new Warrant being dated the date hereof and otherwise  containing
the same  provisions and subject to the same  conditions and subject to the same
terms and conditions as this Warrant. Certificates for shares of Common Stock or
other  securities of the Company  issuable by reason of the exercise of Warrants
shall be dated and shall be  effective  as of the date of the  surrender  of the
Warrants  for  exercise  or  acceptance  of the  offering  of  shares  or  other
securities,  as the case may be,  and the  payment of the  appropriate  Purchase
Price,  notwithstanding any delay in the actual execution,  issuance or delivery
of the certificates or securities so purchased.

     This Warrant shall be  registered on the books of the Company,  which shall
be kept at its principal office for that purpose, and shall be transferable only
on said books by the holder hereof in person or by duly authorized attorney upon
surrender of this Warrant properly endorsed.

     b. This Warrant may be exercised by the holder hereof, in whole or in part,
by surrendering this Warrant at the principal office of the Company,  or at such
other office or agency as the Company may  designate,  accompanied by payment in
full,  in lawful money of the United  States,  of the Purchase  Price payable in
respect of the number of Warrant Shares purchased upon such exercise.

     c. The holder  hereof may,  at its option,  elect to pay some or all of the
Purchase  Price  payable upon an exercise of this Warrant by canceling a portion
of this Warrant  exercisable  for such number of Warrant Shares as is determined
by dividing  (i) the total  Purchase  Price  payable in respect of the number of
Warrant Shares being purchased upon such exercise by (ii) the excess of the Fair
Market Value per share of Common Stock as of the effective date of exercise (the
"Exercise  Date") over the Purchase  Price per share.  The Fair Market Value per
share of Common Stock shall be determined as follows:

     (1) If the Common Stock is listed on a national  securities  exchange,  the
NASDAQ  National  Market  System,  the  NASDAQ  system,  or  another  nationally
recognized  exchange or trading  system as of the Exercise Date, the Fair Market
Value per share of Common  Stock  shall be deemed to be the last  reported  sale
price per share of Common  Stock  thereon on the Exercise  Date;  or, if no such
price is reported on such date,  such price on the next  preceding  business day
(provided that if no such price is reported on the next preceding  business day,
the Fair Market Value per share of Common Stock shall be determined  pursuant to
Clause (2)).
     (2) If the Common  Stock is not listed on a national  securities  exchange,
the NASDAQ  National  Market  System,  the NASDAQ  system or another  nationally
recognized  exchange or trading  system as of the Exercise Date, the Fair Market
Value per share of Common  Stock shall be deemed to be the amount most  recently
determined  by the Board of  Directors  to  represent  the fair market value per
share of the Common Stock  (including  without  limitation a  determination  for
purposes of  granting  Common  Stock  options or issuing  Common  Stock under an
employee  benefit plan of the Company);  and, upon request of the holder hereof,
the Board of Directors (or a  representative  thereof) shall promptly notify the
holder   hereof  of  the  Fair   Market   Value  per  share  of  Common   Stock.
Notwithstanding  the  foregoing,  if the Board of Directors  has not made such a
determination within the three-month period prior to the Exercise Date, then (A)
the Fair  Market  Value per  share of  Common  Stock  shall be the  amount  next
determined  by the Board of  Directors  to  represent  the fair market value per
share of the Common Stock  (including  without  limitation a  determination  for
purposes of  granting  Common  Stock  options or issuing  Common  Stock under an
employee  benefit plan of the  Company),  (B) the Board of Directors  shall make
such a determination within 30 days of a request by the holder hereof that it do
so, and (C) the exercise of this Warrant pursuant to this Subsection 2c shall be
delayed until such determination is made.

     4.  Transfers of Rights.  This Warrant,  and the rights and  obligations of
each holder  hereof,  may be  assigned  by such  holder  hereof to any person or
entity to which  not fewer  than 100  Shares  (issued  or  issuable  under  this
Warrant) are  transferred by such holder hereof,  and such  transferee  shall be
deemed a  "holder  hereof"  for  purposes  of this  Warrant;  provided  that the
transferee provides written notice of such assignment to the Company.

     5.       General.

     a. Notices. All notices, requests, consents, and other communications under
this  Warrant  shall be in writing and shall be  delivered  by hand or mailed by
first class  certified or registered  mail,  return receipt  requested,  postage
prepaid:

     If to the Company,  at 19886 Ashburn Road,  Ashburn,  VA 20147,  Attention:
President,  or at such other address or addresses as may have been  furnished in
writing  by the  Company  to the  Holders,  with a copy to the  Chief  Financial
Officer and General Counsel; or

     If to a holder  hereof,  at his or its address set forth above,  or at such
other address or addresses as may have been  furnished to the Company in writing
by such holder hereof.
                         
     Notices  provided  in  accordance  with  this  Section  5 shall  be  deemed
delivered upon personal delivery or two business days after deposit in the mail.

     b.  Entire  Agreement.  This  Warrant  embodies  the entire  agreement  and
understanding  between the parties  hereto  with  respect to the subject  matter
hereof and supersedes all prior agreements and  understandings  relating to such
subject matter.

     c. Amendments and Waivers.  Any term of this Warrant may be amended and the
observance of any term of this Warrant may be waived  (either  generally or in a
particular instance and either retroactively or prospectively), with the written
consent  of the  Company  and the  holders  of at least  90% of the  Registrable
Shares;  provided,  that this  Warrant  may be amended  with the  consent of the
holders of less than all  Registrable  Shares only in a manner which affects all
Registrable Shares in the same fashion. No waivers of or exceptions to any term,
condition or provision of this Warrant,  in any one or more instances,  shall be
deemed to be, or construed as, a further or continuing  waiver of any such term,
condition or provision.

     d. Fractional  Shares.  The Company shall not be required upon the exercise
of this Warrant to issue any  fractional  shares,  but shall make an  adjustment
therefor  in cash on the  basis of the Fair  Market  Value  per  share of Common
Stock, as determined in good faith by the Board of Directors or as quoted if the
Common Stock is publicly traded on the day the Warrant was exercised.

Executed in Ashburn, Virginia as of the 20th day of November, 1998.

 
                                                               TELOS CORPORATION



                                         By:/s/            William L.P. Brownley
                                                           William L.P. Brownley
                                              Vice President and General Counsel



[SEAL]

Attest: /s/ Gerald D. Calhoun, Secretary                                        
            Gerald D. Calhoun, Secretary



     THIS WARRANT AND THE SHARES  ISSUABLE  HEREUNDER  HAVE NOT BEEN  REGISTERED
UNDER THE SECURITIES ACT OF 1933 OR APPLICABLE STATE SECURITIES LAWS AND MAY NOT
BE SOLD, TRANSFERRED OR ASSIGNED UNLESS IT IS SO REGISTERED OR AN EXEMPTION FROM
REGISTRATION IS AVAILABLE UNDER SAID ACT AND LAWS.

                                     TELOS CORPORATION
                                    COMMON STOCK PURCHASE
                                      SERIES D WARRANT

     This certifies  that,  for value  received,  Foreign & Colonial  Enterprise
Trust Limited Partnership,  c/o Berkeley Square House,  Berkeley Square,  London
W1X 5PA, England, is entitled to purchase and receive from Telos Corporation,  a
Maryland  corporation (the "Company"),  during the period hereinafter  provided,
300,000 fully paid and non-assessable shares of the $.01 par value common voting
stock  of the  Company  (the  "Common  Stock")  upon  surrender  hereof,  at the
principal office of the Company in Ashburn,  Virginia,  and simultaneous payment
of the  purchase  price  of $.01 for each  share  of the  Common  Stock so to be
purchased;  such  number  of shares  and such  purchase  price  per share  being
subject,  however, to adjustment as hereinafter provided. The purchase price per
share,  as  adjusted  from  time to  time,  is  hereinafter  referred  to as the
"Purchase Price."

     This Warrant shall be exercisable  commencing November 20, 1998, that being
the issuance date of that certain  Series D Senior  Subordinated  Unsecured Note
Due  October 1,  2000,  issued by the  Company  to the  Holder of this  Series D
Warrant, and shall expire on October 1, 2000.

     1. Purchase Price Adjustments.

     a. General.  The Purchase Price shall be subject to adjustment from time to
time pursuant to the terms of this Section 1.

     b.  Recapitalizations.  If outstanding shares of the Company's Common Stock
shall be  subdivided  into a greater  number of shares or a  dividend  in Common
Stock shall be paid in respect of Common  Stock,  the  Purchase  Price in effect
immediately  prior to such  subdivision  or at the record date of such  dividend
shall  simultaneously  with the effectiveness of such subdivision or immediately
after  the  record  date  of  such  dividend  be  proportionately   reduced.  If
outstanding  shares of Common Stock shall be combined  into a smaller  number of
shares,  the  Purchase  Price in effect  immediately  prior to such  combination
shall,   simultaneously   with  the  effectiveness  of  such   combination,   be
proportionately increased.

     c.  Mergers,  etc.  If there  shall  occur any  capital  reorganization  or
reclassification of the Company's Common Stock (other than a change in par value
or a subdivision or combination as provided for in Subsection 1b, above), or any
consolidation  or merger of the Company with or into another  corporation,  or a
transfer of all or substantially all of the assets of the Company, then, as part
of any such reorganization, reclassification,  consolidation, merger or sale, as
the case may be, lawful provision shall be made so that the registered Holder of
this Warrant shall have the right thereafter to receive upon the exercise hereof
the kind and amount of shares of stock or other  securities  or  property  which
such registered Holder would have been entitled to receive if, immediately prior
to any such reorganization, reclassification,  consolidation, merger or sale, as
the case may be, such registered  Holder had held the number of shares of Common
Stock which were then purchasable upon the exercise of this Warrant. In any such
case,  appropriate  adjustment  (as  reasonably  determined in good faith by the
Board of  Directors  of the  Company)  shall be made in the  application  of the
provisions set forth herein with respect to the rights and interests  thereafter
of the registered Holder of this Warrant,  such that the provisions set forth in
this Section 1 (including  provisions with respect to adjustment of the Purchase
Price) shall thereafter be applicable,  as nearly as is reasonably  practicable,
in relation to any shares of stock or other  securities  or property  thereafter
deliverable upon the exercise of this Warrant.

     d.  Certificate of  Adjustment.  When any adjustment is required to be made
pursuant to this Section 1, the Company shall  promptly  mail to the  registered
Holder a certificate  setting forth the Purchase Price after such adjustment and
setting forth a brief  statement of the facts  requiring such  adjustment.  Such
certificate  shall  also  set  forth  the  kind  and  amount  of  stock or other
securities or property into which this Warrant  shall be  exercisable  following
such adjustment.
<PAGE>

     2. Registration Rights.

     a. Certain Definitions.  As used in this Warrant, the following terms shall
have the following respective meanings:

     "Commission"  means the  Securities and Exchange  Commission,  or any other
Federal agency at the time administering the Securities Act.

     "Common  Stock" means the common  stock,  $.01 par value per share,  of the
Company.

     "Exchange  Act" means the Securities  Exchange Act of 1934, as amended,  or
any similar  Federal  statute,  and the rules and  regulations of the Commission
issued under such Act, as they each may, from time to time, be in effect.
     "Registration  Statement"  means  a  registration  statement  filed  by the
Company  with the  Commission  for a public  offering  and sale of Common  Stock
(other  than a  registration  statement  on  Form  S-8 or  Form  S-4,  or  their
successors, or any other form for a similar limited purpose, or any registration
statement  covering  only  securities  proposed  to be  issued in  exchange  for
securities or assets of another corporation).

     "Registration Expenses" means the expenses described in Subsection e.

     "Registrable  Shares"  means the shares of Common  Stock issued or issuable
upon   exercise   of  this   Warrant   or  other   Series  D   Warrants   issued
contemporaneously;  provided,  however,  that  shares of Common  Stock which are
Registrable  Shares shall cease to be  Registrable  Shares upon any sale of such
Registrable  Shares  pursuant to a Registration  Statement or Rule 144 under the
Securities  Act.  Wherever  reference  is made in this  Warrant  to a request or
consent  of  holders  of  a  certain  percentage  of  Registrable   Shares,  the
determination  of such percentage  shall include shares of Common Stock issuable
upon exercise of the Warrant even if such exercise  conversion  has not yet been
effected.

     "Securities  Act" means the  Securities  Act of 1933,  as  amended,  or any
similar Federal statute,  and the rules and regulations of the Commission issued
under such Act, as they each may, from time to time, be in effect.

     "Stockholders"  means the  Holders  and any persons or entities to whom the
rights  granted  under  this  Warrant  are  transferred  by any  Holders,  their
successors or assigns pursuant to Section 4 hereof.

     b. Required Registrations.

     (1) At any time after the Company  becomes  eligible to file a Registration
Statement on Form S-3 (or any successor form relating to secondary offerings), a
Stockholder  or  Stockholders  holding  in the  aggregate  at  least  20% of the
Registrable  Shares  issued  pursuant  to the Series D Warrants  may request the
Company,  in writing,  to effect the registration on Form S-3 (or such successor
form), of Registrable Shares having an aggregate offering price of at least Five
Hundred  Thousand  Dollars  ($500,000)  (based on the then current public market
price).  Upon  receipt of any such  request,  the Company  shall  promptly  give
written  notice  of  such  proposed  registration  to  all  Stockholders.   Such
Stockholders  shall  have the right,  by giving  written  notice to the  Company
within 30 days after the Company provides its notice,  to elect to have included
in such registration  such of their Registrable  Shares as such Stockholders may
request in such notice of election;  provided that if the  underwriter  (if any)
managing the offering determines that, because of marketing factors,  all of the
Registrable  Shares  requested to be registered by all  Stockholders  may not be
included in the offering,  then all Stockholders who have requested registration
shall  participate  in the  registration  pro  rata  based  upon the  number  of
Registrable Shares which they have requested to be so registered. Thereupon, the
Company shall, as expeditiously as possible,  use its best efforts to effect the
registration  on Form S-3 (or such  successor  form) of all  Registrable  Shares
which the Company has been requested to so register.

     (2) The Company  shall not be required to effect more than 3  registrations
pursuant to Subparagraph  (1) above, nor shall the Company be required to effect
a registration  pursuant to  Subparagraph  (1) above within six months after the
effective date of any other Registration Statement of the Company (other than on
Form S-3, or S-8, or any successor form).

     (3) If at the time of any request to register  Registrable  Shares pursuant
to this Subsection b, the Company is engaged or has fixed plans to engage within
30 days of the time of the request in a registered  public  offering as to which
the Stockholders may include  Registrable  Shares pursuant to Subsection c or is
engaged in any other  activity  which,  in the good faith  determination  of the
Company's  Board of  Directors,  would be  adversely  affected by the  requested
registration to the material  detriment of the Company,  then the Company may at
its option direct that such request be delayed for a period not in excess of six
months from the effective date of such offering or the date of  commencement  of
such other material activity, as the case may be.
<PAGE>

     c. Incidental Registration.

     (1) Whenever the Company  proposes to file a Registration  Statement (other
than  pursuant to  Subsection  b(1)) at any time and from time to time, it will,
prior to such filing,  give written notice to all  Stockholders of its intention
to do so and, upon the written  request of a Stockholder or  Stockholders  given
within 20 days after the Company provides such notice (which request shall state
the intended  method of disposition  of such  Registrable  Shares),  the Company
shall use its best efforts to cause all Registrable Shares which the Company has
been requested by such  Stockholder or Stockholders to register to be registered
under the Securities  Act to the extent  necessary to permit their sale or other
disposition in accordance with the intended methods of distribution specified in
the request of such Stockholder or Stockholders; provided that the Company shall
have the right to postpone or withdraw  any  registration  effected  pursuant to
this Subsection c without obligation to any Stockholder.

     (2) In connection with any  registration  under this Subsection c involving
an  underwriting,  the Company shall not be required to include any  Registrable
Shares in such  registration  unless the holders thereof accept the terms of the
underwriting as agreed upon between the Company and the underwriters selected by
it (provided that such terms must be consistent  with this  Warrant).  If in the
opinion of the  managing  underwriter  it is  appropriate  because of  marketing
factors  to limit  the  number  of  Registrable  Shares  to be  included  in the
offering, then the Company shall be required to include in the registration only
that  number of  Registrable  Shares,  if any,  which the  managing  underwriter
believes should be included therein.  If the number of Registrable  Shares to be
included in the offering in accordance with the foregoing is less than the total
number of shares which the holders of  Registrable  Shares have  requested to be
included, then the holders of Registrable Shares who have requested registration
and other  holders of securities  entitled to include them in such  registration
shall  participate in the registration pro rata based upon their total ownership
of shares of Common Stock (giving effect to the conversion  into Common Stock of
all securities convertible  thereinto).  If any holder would thus be entitled to
include more securities than such holder requested to be registered,  the excess
shall be  allocated  among  other  requesting  holders  pro  rata in the  manner
described in the preceding sentence.

     d. Registration Procedures.  If and whenever the Company is required by the
provisions of this Warrant to use its best efforts to effect the registration of
any of the Registrable Shares under the Securities Act, the Company shall:

     (1) file with the Commission a Registration  Statement with respect to such
Registrable Shares and use its best efforts to cause that Registration Statement
to become and remain effective;

     (2) as  expeditiously  as possible prepare and file with the Commission any
amendments  and  supplements  to the  Registration  Statement and the prospectus
included  in the  Registration  Statement  as  may  be  necessary  to  keep  the
Registration Statement effective,  in the case of a firm commitment underwritten
public  offering,  until each  underwriter has completed the distribution of all
securities  purchased  by it and, in the case of any other  offering,  until the
earlier of the sale of all Registrable  Shares covered thereby or 120 days after
the effective date thereof;

     (3) as expeditiously  as possible furnish to each selling  Stockholder such
reasonable  numbers  of  copies  of  the  prospectus,  including  a  preliminary
prospectus,  in conformity with the requirements of the Securities Act, and such
other documents as the selling  Stockholder  may reasonably  request in order to
facilitate the public sale or other disposition of the Registrable  Shares owned
by the selling Stockholder; and

     (4) as  expeditiously  as  possible  use its best  efforts to  register  or
qualify the Registrable  Shares covered by the Registration  Statement under the
securities  or Blue Sky laws of such  states as the selling  Stockholders  shall
reasonably  request,  and do any and all  other  acts  and  things  that  may be
necessary or  desirable to enable the selling  Stockholders  to  consummate  the
public sale or other disposition in such states of the Registrable  Shares owned
by the selling  Stockholder;  provided,  however,  that the Company shall not be
required  in  connection  with this  Subparagraph  (4) to  qualify  as a foreign
corporation  or  execute  a  general  consent  to  service  of  process  in  any
jurisdiction.

     If the Company  has  delivered  preliminary  or final  prospectuses  to the
selling  Stockholders  and after  having  done so the  prospectus  is amended to
comply with the  requirements  of the Securities Act, the Company shall promptly
notify the selling  Stockholders  and, if  requested,  the selling  Stockholders
shall  immediately  cease  making  offers of  Registrable  Shares and return all
prospectuses  to the Company.  The Company  shall  promptly  provide the selling
Stockholders  with revised  prospectuses  and,  following receipt of the revised
prospectuses,  the selling Stockholders shall be free to resume making offers of
the Registrable Shares.

     e. Allocation of Expenses.  The Company will pay all Registration  Expenses
of  all  registrations  under  this  Warrant;  provided,   however,  that  if  a
registration  under Subsection b is withdrawn at the request of the Stockholders
requesting such registration  (other than as a result of information  concerning
the  business or financial  condition of the Company  which is made known to the
Stockholders after the date on which such registration was requested) and if the
requesting  Stockholders  elect  not to  have  such  registration  counted  as a
registration requested under Subection b, the requesting  Stockholders shall pay
the Registration  Expenses of such  registration pro rata in accordance with the
number of their Registrable Shares included in such  registration.  For purposes
of this Subsection e, the term  "Registration  Expenses" shall mean all expenses
incurred by the  Company in  complying  with this  Warrant,  including,  without
limitation,  all registration and filing fees,  exchange listing fees,  printing
expenses, fees and expenses of counsel for the Company and the fees and expenses
of one counsel  selected by the selling  Stockholders  to represent  the selling
Stockholders,  state Blue Sky fees and expenses,  and the expense of any special
audits  incident  to  or  required  by  any  such  registration,  but  excluding
underwriting discounts, selling commissions and the fees and expenses of selling
Stockholders'  own counsel  (other than the counsel  selected to  represent  all
selling Stockholders).


<PAGE>

     f. Indemnification and Contribution.

     (1) In the event of any registration of any of the Registrable Shares under
the Securities Act pursuant to this Warrant, the Company will indemnify and hold
harmless  the  seller  of such  Registrable  Shares,  each  underwriter  of such
Registrable  Shares,  and each other person, if any, who controls such seller or
underwriter within the meaning of the Securities Act or the Exchange Act against
any losses,  claims,  damages or  liabilities,  joint or several,  to which such
seller,   underwriter  or  controlling  person  may  become  subject  under  the
Securities  Act,  the  Exchange  Act,  state  securities  or  Blue  Sky  laws or
otherwise, insofar as such losses, claims, damages or liabilities (or actions in
respect  thereof) arise out of or are based upon any untrue statement or alleged
untrue  statement of any material fact contained in any  Registration  Statement
under which such  Registrable  Shares were registered  under the Securities Act,
any preliminary  prospectus or final  prospectus  contained in the  Registration
Statement,  or any amendment or supplement to such  Registration  Statement,  or
arise out of or are based  upon the  omission  or  alleged  omission  to state a
material fact required to be stated  therein or necessary to make the statements
therein not misleading;  and the Company will reimburse such seller, underwriter
and each such controlling person for any legal or any other expenses  reasonably
incurred by such seller,  underwriter or controlling  person in connection  with
investigating or defending any such loss,  claim,  damage,  liability or action;
provided,  however,  that the Company will not be liable in any such case to the
extent that any such loss, claim,  damage or liability arises out of or is based
upon any untrue  statement  or  omission  made in such  Registration  Statement,
preliminary prospectus or final prospectus, or any such amendment or supplement,
in reliance upon and in conformity with information furnished to the Company, in
writing,  by or on behalf of such  seller,  underwriter  or  controlling  person
specifically for use in the preparation thereof.

     (2) In the event of any registration of any of the Registrable Shares under
the Securities Act pursuant to this Warrant,  each seller of Registrable Shares,
severally and not jointly, will indemnify and hold harmless the Company, each of
its directors  and officers and each  underwriter  (if any) and each person,  if
any, who controls the Company or any such underwriter  within the meaning of the
Securities  Act or the  Exchange  Act,  against any losses,  claims,  damages or
liabilities,  joint or  several,  to  which  the  Company,  such  directors  and
officers,  underwriter  or  controlling  person  may  become  subject  under the
Securities  Act,  Exchange Act, state  securities or Blue Sky laws or otherwise,
insofar as such losses,  claims,  damages or liabilities  (or actions in respect
thereof) arise out of or are based upon any untrue  statement of a material fact
contained in any Registration Statement under which such Registrable Shares were
registered  under  the  Securities  Act,  any  preliminary  prospectus  or final
prospectus  contained  in  the  Registration  Statement,  or  any  amendment  or
supplement to the Registration  Statement, or arise out of or are based upon any
omission to state a material fact required to be stated  therein or necessary to
make the  statements  therein not  misleading,  if the statement or omission was
made in reliance upon and in conformity with information relating to such seller
furnished in writing to the Company by or on behalf of such seller  specifically
for use in  connection  with the  preparation  of such  Registration  Statement,
prospectus,  amendment or supplement; provided, however, that the obligations of
such Stockholders  hereunder shall be limited to an amount equal to the proceeds
to  each  Stockholder  of  Registrable  Shares  sold  in  connection  with  such
registration.

     (3) Each party  entitled to  indemnification  under this  Subsection f (the
"Indemnified  Party")  shall  give  notice  to the  party  required  to  provide
indemnification (the "Indemnifying Party") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought, and shall
permit the  Indemnifying  Party to assume  the  defense of any such claim or any
litigation  resulting  therefrom;  provided,  that counsel for the  Indemnifying
Party,  who shall  conduct  the  defense of such claim or  litigation,  shall be
approved by the  Indemnified  Party (whose  approval  shall not be  unreasonably
withheld); and, provided,  further, that the failure of any Indemnified Party to
give notice as provided herein shall not relieve the  Indemnifying  Party of its
obligations  under this Subsection f. The  Indemnified  Party may participate in
such defense at such party's expense;  provided,  however, that the Indemnifying
Party shall pay such expense if  representation of such Indemnified Party by the
counsel retained by the Indemnifying  Party would be inappropriate due to actual
or potential  differing  interests  between the Indemnified  Party and any other
party represented by such counsel in such proceeding.  No Indemnifying Party, in
the defense of any such claim or  litigation  shall,  except with the consent of
each  Indemnified  Party,  consent  to entry of any  judgment  or enter into any
settlement which does not include as an unconditional term thereof the giving by
the  claimant  or  plaintiff  to such  Indemnified  Party of a release  from all
liability in respect of such claim or litigation, and no Indemnified Party shall
consent to entry of any judgment or settle such claim or litigation  without the
prior written consent of the Indemnifying Party.
<PAGE>

     (4) In  order to  provide  for just  and  equitable  contribution  to joint
liability under the Securities Act in any case in which either (i) any holder of
Registrable  Shares  exercising  rights under this Warrant,  or any  controlling
person of any such holder,  makes a claim for  indemnification  pursuant to this
Subsection f but it is judicially  determined  (by the entry of a final judgment
or decree by a court of competent  jurisdiction  and the  expiration  of time to
appeal or the denial of the last right of appeal) that such  indemnification may
not be enforced in such case  notwithstanding  the fact that this  Subsection  f
provides  for  indemnification  in such  case,  or (ii)  contribution  under the
Securities  Act may be required on the part of any such selling  Stockholder  or
any such  controlling  person  in  circumstances  for which  indemnification  is
provided under this  Subsection f; then, in each such case, the Company and such
Stockholder  will  contribute  to  the  aggregate  losses,  claims,  damages  or
liabilities  to which they may be subject  (after  contribution  from others) in
such proportions so that such holder is responsible for the portion  represented
by the  percentage  that the public  offering  price of its  Registrable  shares
offered by the Registration  Statement bears to the public offering price of all
securities  offered  by  such  Registration   Statement,   and  the  Company  is
responsible  for the remaining  portion;  provided,  however,  that, in any such
case,  (A) no such holder will be required to contribute any amount in excess of
the  proceeds  to it of all  Registrable  Shares  sold  by it  pursuant  to such
Registration  Statement,  and (B) no  person  or  entity  guilty  of  fraudulent
misrepresentation,  within the meaning of Section 11(f) of the  Securities  Act,
shall be entitled to contribution from any person or entity who is not guilty of
such fraudulent misrepresentation.

     g. Indemnification with Respect to Underwritten Offering. In the event that
Registrable  Shares  are  sold  pursuant  to  a  Registration  Statement  in  an
underwritten offering pursuant to Subsection b, the Company agrees to enter into
an underwriting  agreement containing  customary  representations and warranties
with respect to the business and operations of an issuer of the securities being
registered  and  customary  covenants  and  agreements  to be  performed by such
issuer,  including  without  limitation  customary  provisions  with  respect to
indemnification by the Company of the underwriters of such offering.

     h. Information by Holder. Each Stockholder  including Registrable Shares in
any registration  shall furnish to the Company such  information  regarding such
Stockholder and the distribution proposed by such Stockholder as the Company may
reasonably  request in writing and as shall be required in  connection  with any
registration, qualification or compliance referred to in this Warrant.

     i. "Stand-Off"  Agreement".  Each Stockholder,  if requested by the Company
and the  managing  underwriter  of an offering by the Company of Common Stock or
other  securities of the Company  pursuant to a  Registration  Statement,  shall
agree not to sell publicly or otherwise  transfer or dispose of any  Registrable
Shares  or  other  securities  of the  Company  held by such  Stockholder  for a
specified  period of time (not to exceed 180 days)  following the effective date
of such Registration Statement; provided, that:

     (1) such  agreement  shall only apply to the first  Registration  Statement
covering  Common Stock to be sold on its behalf to the public in an underwritten
offering; and

     (2) all  Stockholders  holding not less than the number of shares of Common
Stock held by such Stockholder  (including  shares of Common Stock issuable upon
the conversion of Shares, or other convertible securities,  or upon the exercise
of options,  warrants or rights) and all officers  and  directors of the Company
enter into similar agreements.

     j. Termination.  All of the Company's  obligations to register  Registrable
Shares  under this Warrant  shall  terminate  on the tenth  anniversary  of this
Warrant.
     3. Exercise of Warrant.

     a. The Company  covenants  that it will at all times  maintain an available
and adequate  reserve of duly authorized but unissued share of its Common Stock,
free from  preemptive  rights,  sufficient  to effect the full  exercise of this
Warrant as herein provided, and that it will at all times maintain in full force
and effect an appropriate  permit of the Delaware  Commissioner  of Corporations
authorizing  the  issuance and sale by the Company of all shares of Common Stock
issuable upon exercise of this Warrant by the holder.

     The Company  covenants  that all shares of Common Stock  issuable  upon the
exercise of this Warrant will, upon issuance,  be validly issued, fully paid and
non-assessable,  and free from all taxes,  liens and charges with respect to the
issue thereof.

     The holder hereof may surrender  this Warrant for exchange at the principal
office of the Company.  Within a reasonable  time thereafter and without expense
(other than transfer taxes,  if any) to each holder,  the Company shall issue in
exchange  therefor,  in such  denominations  (of not less than 100  shares)  and
issued in such name or names as the holder shall  designate (if permitted by the
Federal  Securities laws and the relevant Blue Sky law(s),  as amended from time
to time), a new certificate or certificates dated the date hereof evidencing the
right to purchase  the same  aggregate  number of shares of Common  Stock as are
evidenced  hereby,  and otherwise  containing the same provisions and subject to
the same terms and conditions of this certificate.

     Upon surrender of this Warrant at the office of the Company  accompanied by
payment of the  appropriate  Purchase  Price of the  Common  Stock in cash or as
otherwise  allowed  herein,  the Company shall  forthwith  cause to be executed,
issued and delivered to the holder of the Warrant a certificate or  certificates
for the  proper  number of shares of  common  stock or other  securities  of the
Company;  and the Company  covenants  that the  issuance of this  Warrant  shall
constitute full authority to those of its officers who are charged with the duty
of issuing  stock  certificates  to promptly  execute,  issue and deliver to the
holder of the Warrant the  necessary  certificate  for shares of Common Stock or
other securities of the Company required by such exercise.
<PAGE>

     This  Warrant  may be  exercised  in  accordance  with its  terms  prior to
expiration  as a whole,  or from time to time in part.  In the event of  partial
exercise  of the  Warrant,  the  Company  shall,  in addition to delivery of the
securities  thereby  purchased,  deliver  to the  holder of the  Warrant,  a new
Warrant for the remaining shares then subject to the unexercised  portion of the
Warrant;  such new Warrant being dated the date hereof and otherwise  containing
the same  provisions and subject to the same  conditions and subject to the same
terms and conditions as this Warrant. Certificates for shares of Common Stock or
other  securities of the Company  issuable by reason of the exercise of Warrants
shall be dated and shall be  effective  as of the date of the  surrender  of the
Warrants  for  exercise  or  acceptance  of the  offering  of  shares  or  other
securities,  as the case may be,  and the  payment of the  appropriate  Purchase
Price,  notwithstanding any delay in the actual execution,  issuance or delivery
of the certificates or securities so purchased.

     This Warrant shall be  registered on the books of the Company,  which shall
be kept at its principal office for that purpose, and shall be transferable only
on said books by the holder hereof in person or by duly authorized attorney upon
surrender of this Warrant properly endorsed.

     b. This Warrant may be exercised by the holder hereof, in whole or in part,
by surrendering this Warrant at the principal office of the Company,  or at such
other office or agency as the Company may  designate,  accompanied by payment in
full,  in lawful money of the United  States,  of the Purchase  Price payable in
respect of the number of Warrant Shares purchased upon such exercise.

     c. The holder  hereof may,  at its option,  elect to pay some or all of the
Purchase  Price  payable upon an exercise of this Warrant by canceling a portion
of this Warrant  exercisable  for such number of Warrant Shares as is determined
by dividing  (i) the total  Purchase  Price  payable in respect of the number of
Warrant Shares being purchased upon such exercise by (ii) the excess of the Fair
Market Value per share of Common Stock as of the effective date of exercise (the
"Exercise  Date") over the Purchase  Price per share.  The Fair Market Value per
share of Common Stock shall be determined as follows:

     (1) If the Common Stock is listed on a national  securities  exchange,  the
NASDAQ  National  Market  System,  the  NASDAQ  system,  or  another  nationally
recognized  exchange or trading  system as of the Exercise Date, the Fair Market
Value per share of Common  Stock  shall be deemed to be the last  reported  sale
price per share of Common  Stock  thereon on the Exercise  Date;  or, if no such
price is reported on such date,  such price on the next  preceding  business day
(provided that if no such price is reported on the next preceding  business day,
the Fair Market Value per share of Common Stock shall be determined  pursuant to
Clause (2)).

     (2) If the Common  Stock is not listed on a national  securities  exchange,
the NASDAQ  National  Market  System,  the NASDAQ  system or another  nationally
recognized  exchange or trading  system as of the Exercise Date, the Fair Market
Value per share of Common  Stock shall be deemed to be the amount most  recently
determined  by the Board of  Directors  to  represent  the fair market value per
share of the Common Stock  (including  without  limitation a  determination  for
purposes of  granting  Common  Stock  options or issuing  Common  Stock under an
employee  benefit plan of the Company);  and, upon request of the holder hereof,
the Board of Directors (or a  representative  thereof) shall promptly notify the
holder   hereof  of  the  Fair   Market   Value  per  share  of  Common   Stock.
Notwithstanding  the  foregoing,  if the Board of Directors  has not made such a
determination within the three-month period prior to the Exercise Date, then (A)
the Fair  Market  Value per  share of  Common  Stock  shall be the  amount  next
determined  by the Board of  Directors  to  represent  the fair market value per
share of the Common Stock  (including  without  limitation a  determination  for
purposes of  granting  Common  Stock  options or issuing  Common  Stock under an
employee  benefit plan of the  Company),  (B) the Board of Directors  shall make
such a determination within 30 days of a request by the holder hereof that it do
so, and (C) the exercise of this Warrant pursuant to this Subsection 2c shall be
delayed until such determination is made.

     4.  Transfers of Rights.  This Warrant,  and the rights and  obligations of
each holder  hereof,  may be  assigned  by such  holder  hereof to any person or
entity to which  not fewer  than 100  Shares  (issued  or  issuable  under  this
Warrant) are  transferred by such holder hereof,  and such  transferee  shall be
deemed a  "holder  hereof"  for  purposes  of this  Warrant;  provided  that the
transferee provides written notice of such assignment to the Company.
<PAGE>
     5. General.

     a. Notices. All notices, requests, consents, and other communications under
this  Warrant  shall be in writing and shall be  delivered  by hand or mailed by
first class  certified or registered  mail,  return receipt  requested,  postage
prepaid:

     If to the Company,  at 19886 Ashburn Road,  Ashburn,  VA 20147,  Attention:
President,  or at such other address or addresses as may have been  furnished in
writing  by the  Company  to the  Holders,  with a copy to the  Chief  Financial
Officer and General Counsel; or

     If to a holder  hereof,  at his or its address set forth above,  or at such
other address or addresses as may have been  furnished to the Company in writing
by such holder hereof.

     Notices  provided  in  accordance  with  this  Section  5 shall  be  deemed
delivered upon personal delivery or two business days after deposit in the mail.

     b.  Entire  Agreement.  This  Warrant  embodies  the entire  agreement  and
understanding  between the parties  hereto  with  respect to the subject  matter
hereof and supersedes all prior agreements and  understandings  relating to such
subject matter.

     c. Amendments and Waivers.  Any term of this Warrant may be amended and the
observance of any term of this Warrant may be waived  (either  generally or in a
particular instance and either retroactively or prospectively), with the written
consent  of the  Company  and the  holders  of at least  90% of the  Registrable
Shares;  provided,  that this  Warrant  may be amended  with the  consent of the
holders of less than all  Registrable  Shares only in a manner which affects all
Registrable Shares in the same fashion. No waivers of or exceptions to any term,
condition or provision of this Warrant,  in any one or more instances,  shall be
deemed to be, or construed as, a further or continuing  waiver of any such term,
condition or provision.

     d. Fractional  Shares.  The Company shall not be required upon the exercise
of this Warrant to issue any  fractional  shares,  but shall make an  adjustment
therefor  in cash on the  basis of the Fair  Market  Value  per  share of Common
Stock, as determined in good faith by the Board of Directors or as quoted if the
Common Stock is publicly traded on the day the Warrant was exercised.


Executed in Ashburn, Virginia as of the 20th day of November, 1998.


                                                             TELOS CORPORATION



                                                   By:/s/  William L.P. Brownley
                                                           William L.P. Brownley
                                              Vice President and General Counsel



[SEAL]

Attest:/s/ Gerald D. Calhoun, Secretary                                         
      

                                                  
                               Stock Purchase Agreement

     THIS STOCK PURCHASE AGREEMENT ("Agreement") made this 20th day of November,
1998, among  ____________________ (the "Seller"),  Telos Corporation, a Maryland
corporation  (the  "Purchaser"),  and John B. Connor,  Escrow Agent (the "Escrow
Agent").

                                        RECITALS

     The  Seller is the  owner of _____  shares  of Telos  Corporation's  twelve
percent (12%) cumulative  exchangeable,  redeemable,  preferred stock, par value
one penny  ($.01) per share (the  "Public  Preferred  Stock"),  with such shares
owned by Seller hereinafter referred to as "Seller's Shares".

     The parties have agreed upon the purchase and sale of such Public Preferred
Stock under the terms and conditions contained in this Agreement.

     It is therefore agreed:

     1. Sale. The Seller shall sell and the Purchaser  shall purchase all of the
Seller's  shares in the  Public  Preferred  Stock at the  price of Four  Dollars
($4.00) per share.

     2.  Escrow  Deposit.  Within  five (5) days  after  the  execution  of this
Agreement,  the Seller will  deposit  with the Escrow  Agent a  certificate  for
Seller's shares in the Public Preferred Stock,  endorsed in blank.  Upon receipt
by the Escrow Agent of all  certificates  representing the Seller's Shares to be
purchased in this offer, the Purchaser will deposit within two (2) days with the
Escrow Agent the funds to purchase all of said Seller's Shares. If the condition
set forth in  paragraph  3 is  satisfied  on or before  December  1st and if the
Escrow Agent shall  receive  written  notice  thereof  from the  Purchaser on or
before  that date,  the Escrow  Agent  shall  promptly  thereafter  deliver  the
certificate  for such  shares  to the  Purchaser,  and shall pay the sum for the
shares specified in paragraph 1 above to the Seller.  If the condition set forth
in paragraph 3 is not  satisfied or waived on or before  December 1st, or if the
Escrow Agent shall not receive written notice of that fact from the Purchaser on
or before that date,  the Escrow  Agent shall  promptly  thereafter  deliver the
certificate for such shares to the Seller,  and shall pay the sum for the shares
specified in  paragraph 1 above  (provided  the funds have been  received by the
Escrow Agent) to the Purchaser.  Upon the performance by the Escrow Agent of its
obligations hereunder,  all obligations of the Escrow Agent and of the Purchaser
and Seller shall cease.

     3. Conditions precedent. The obligations of the Purchaser to buy the Public
Preferred Stock are conditioned upon the Purchaser having the funds to do so and
the Purchaser being satisfied with  Shareholder's  title to the Public Preferred
Stock tendered pursuant to the Stock Purchase Agreement.

     4. Notice.  All notices  pursuant to this Agreement shall be in writing and
shall be sufficient if delivered,  sent or mailed  registered or certified mail,
postage prepaid, or by personal delivery as follows:

     If to Escrow Agent:                John B. Connor, Escrow Agent
                                        John B. Connor, P.L.C.
                                        1033 North Fairfax St. #310
                                        Alexandria, VA 22314
 

     If to Seller:                      __________________________

                                        __________________________

                                        __________________________


     If to Purchaser:                   Telos Corporation
                                        19886 Ashburn Road
                                        Ashburn, VA 20147

<PAGE>
 
     5. Waiver.  Any condition in paragraph 3 of this  agreement is deemed to be
exclusively  for the  benefit of  Purchaser,  and the  Purchaser  shall have the
right,  but not the obligation,  to waive said  contingency  upon giving written
notice to Escrow Agent in  accordance  with the procedure set forth in paragraph
2.

     6.  Benefit.  This  agreement  shall be binding upon and shall inure to the
benefit of the parties, their legal representative, successors, and assigns.

     IN WITNESS WHEREOF, the parties have signed this agreement.


ATTEST:                                SELLER


                                                                       
                                       Name:                           
                                       Address:                        
                                                                       

                                                Telos Corporation
ATTEST:/s/ Gerald D. Calhoun


                                        By:/s/William L.P. Brownley
                                        Name:William L.P. Brownley
                                        Title:Vice President & General Counsel


<PAGE>                                              
                                        ESCROW AGREEMENT

     THIS ESCROW AGREEMENT  ("Agreement") made this 20th day of November,  1998,
by and  between  TELOS  CORPORATION  (the  "Purchaser")  and JOHN B. CONNOR (the
"Escrow Agent") for the benefit of the Purchaser and various  shareholders  (the
"Shareholders") of the Twelve Percent (12%) Cumulative Exchangeable, Redeemable,
Preferred  Stock,  Par Value One Penny ($.01) Per Share (the  "Public  Preferred
Stock").

                                    W I T N E S S E T H:
     WHEREAS,  some or all of the  Shareholders  and the Purchaser  have or will
enter into various Stock Purchase  Agreements dated various dates (the "Purchase
Agreements"),  for the sale of certain shares of the Public  Preferred  Stock, a
copy of which form Purchase Agreement has been delivered to the Escrow Agent, is
attached hereto as Exhibit A, and the terms of which are incorporated  herein by
reference  (all  terms not  otherwise  defined  herein  shall  have the  meaning
attributed thereto in the Purchase Agreement); and

     WHEREAS,  Paragraph  2 of the  Purchase  Agreement  provides,  among  other
things,  that the  Shareholders  will deposit share  certificates  of the Public
Preferred Stock, endorsed in blank, with the Escrow Agent; and

     WHEREAS,  Paragraph  2 of the  Purchase  Agreement  provides,  among  other
things,  that the Purchaser will deposit funds with the Escrow Agent to purchase
all of the shares;

     NOW,  THEREFORE,  in  consideration  of the promises  made herein and other
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged, the parties agree as follows:

     1. Deposit of Share  Certificates and Purchase Funds.  Within ten (10) days
after the execution of the various Purchase Agreements, each of the Shareholders
will deposit with the Escrow Agent their certificate for the number of shares of
the Public Preferred Stock listed below,  endorsed in blank. Upon receipt by the
Escrow Agent of all certificates representing the shares to be purchased in this
offer,  the Escrow Agent will notify Purchaser and the Purchaser will thereafter
deposit with the Escrow Agent the funds to purchase all of said shares.

     2.  Disposition  of  Share  Certificates  and  Purchase  Funds.  (a) If the
condition  set forth in Paragraph 3 is satisfied on or before  December 1st,  or
the date of any extension  thereof,  (the  "Deadline"),  and if the Escrow Agent
receives the funds  required to finalize the purchase from the Purchaser  within
fifteen (15) days after the Deadline, the Escrow Agent shall promptly thereafter
deliver the  certificates  for such shares to the  Purchaser,  and shall pay the
sums for the  purchase to each of the  Shareholders  as required by the Purchase
Agreements. (b) If the condition set forth in Paragraph 3 is not satisfied on or
before the Deadline,  or if the Escrow Agent has not received  written notice of
waiver of such  condition  from the Purchaser on or before that date, the Escrow
Agent shall promptly  thereafter deliver the certificates for such shares to the
Shareholders,  and shall pay all funds received from Purchaser to the Purchaser.
(c) If the Purchaser waives the condition precedent in Paragraph 3 and instructs
the Escrow Agent to proceed with the purchase even though all Shareholders  have
not agreed thereto,  Purchaser shall forthwith deliver the funds required by the
Purchase Agreement to the Escrow Agent, whereupon the Escrow Agent shall deliver
the  shares  he has  received  to  Purchaser  and  distribute  the  funds to the
Shareholders as required by the Purchase Agreements. (d) Upon the performance by
the Escrow Agent of its  obligations  hereunder,  all  obligations of the Escrow
Agent and of the Purchaser and Shareholders hereunder shall cease.

     3. Conditions precedent. The obligations of the Purchaser to buy the Public
Preferred Stock are conditioned upon the Purchaser having the funds to do so and
the Purchaser being satisfied with  Shareholder's  title to the Public Preferred
Stock tendered pursuant to the Stock Purchase  Agreement.  Purchaser agrees that
it will diligently seek and use its best efforts to acquire the Public Preferred
Stock from the Shareholders.

     4. Notwithstanding any provision herein to the contrary, Purchaser reserves
the right to terminate  the Purchase  Agreements  and not proceed with the stock
purchases at any time up to the delivery of funds to the Escrow Agent.

     5.  Extension of Deadline.  The Purchaser  reserves the right to extend the
Deadline, in its sole and absolute discretion.
<PAGE>

     6. Limitations of Liability.  The foregoing instructions are subject to the
following provisions:

     6.1 Depository  Duty. The Escrow Agent will be liable as a depository only,
and will  not be  responsible  for the  sufficiency  or  accuracy  of the  form,
execution,  or  validity  of  any  document  delivered  to it  hereunder  or any
description  of the property or other thing  contained  therein or the identity,
authority,  or rights of the persons  executing or delivering,  or purporting to
execute or deliver,  any such document.  The Escrow Agent's duties hereunder are
limited to the  safekeeping and the delivery of the shares and purchase funds in
accordance  with this  Agreement.  The Escrow  Agent  shall not be liable in the
event of bank failure.

     6.2  Standard of Care.  The Escrow  Agent will not be liable for any act or
omission done in good faith, or for any claim,  demand,  loss, or damage made or
suffered by any party to this  Agreement,  unless it arose through or was caused
by the Escrow Agent's willful misconduct or gross negligence.

     6.3 Reliance.  The Escrow Agent shall in all cases be entitled to rely upon
and be fully  protected  in acting  or in  refraining  from  acting  under  this
Agreement in accordance with any and all written notices,  demands,  directions,
orders, or other documents  received by it in accordance with this Agreement and
believed  by it to be genuine and correct and to have been signed or sent by the
proper person.

     6.4  Substitution  of Escrow  Agent.  If for any reason the Escrow Agent is
unable to serve hereunder, a successor shall be appointed by mutual agreement of
the Shareholders and the Purchaser.

     6.5  Modification.  This  Agreement  is the only  agreement  binding on the
Escrow  Agent  relating to the deposit of shares and the deposit of the purchase
funds,  and the  Escrow  Agent  may rely  absolutely  on this  Agreement  to the
exclusion  of any  and  all  other  agreements  between  the  Purchaser  and the
Shareholders.

     7.  Compensation  of  Escrow  Agent.  The  Escrow  Agent  shall  be paid by
Purchaser the amount of Two Hundred and Twenty-Five  Dollars  ($225.00) per hour
for his service within thirty (30) days of rendering an invoice to Purchaser.

     8. Miscellaneous. It is further agreed as follows:

     8.1 Time. Time is of the essence of this Agreement.

     8.2 Notice. All notices or communications  required or permitted under this
Agreement  shall be in writing  and shall be deemed duly given if in writing and
delivered  personally,  or sent by reliable  overnight  delivery  service,  each
method with  written  receipt or other  evidence of delivery  requested,  to the
following addresses (or such other addresses as may be designated in writing):

     (a) if to the Shareholders:  To each at the address in the records of Telos
Corporation.

     (b)  if to the Purchaser:  Telos Corporation
                                19886 Ashburn Road
                                Ashburn, VA 20147

    (c)  if to Escrow Agent:    John B. Connor, Escrow Agent
                                John B. Connor, P.L.C.
                                1033 North Fairfax St. #310
                                Alexandria, VA 22314
<PAGE>

     The date of such  notice  shall be the date it is  received  by  Purchaser,
Shareholders or Escrow Agent, as the case may be.

     8.3 Binding  Effect.  This Agreement  shall be binding on, and inure to the
benefit of, the parties and their respective  heirs,  personal  representatives,
successors and permitted assigns.

     8.4 Governing Law. This Agreement is made pursuant to and shall be governed
,  construed  and  enforced  in all  respects  and  for all  purposes  by and in
accordance with the laws of the Commonwealth of Virginia.

     8.5   Counterparts.   This  Agreement  may  be  executed  in  two  or  more
counterparts,  each of  which  shall  be  deemed  an  original  but all of which
together shall constitute one and the same document.

     IN WITNESS  WHEREOF,  this Agreement has been executed and delivered on the
date written above.

ATTEST:                                   PURCHASER:
/s/ Gerald D. Calhoun
                                          Telos Corporation


                                          By:/s/ William L.P. Brownley
                                          Name:William L.P. Brownley
                                          Title:Vice President & General Counsel



Receipt of these  instructions is acknowledged and accepted this 20th day of
November, 1998.

ATTEST:                                  ESCROW AGENT:
/s/ Irene Coulter

                                         By: /s/ John B. Connor
                                         Name:_________________________________
                                         Title:________________________________
     




                      TELOS CORPORATION AND SUBSIDIARIES
    
                                 Form 10-K

                           SCHEDULE OF SUBSIDIARIES

                   Telos Corporation, Santa Monica, California
                    Incorporated:  California, April 11, 1969 

                     Telos Field Engineering, Inc., Delaware
                    Incorporated: Delaware, February 25, 1994

                     Telos International Corporation, Delaware
                       Incorporated:  Delaware, May 16, 1995

                             Enterworks, Inc., Delaware
                          Incorporated:  February 22, 1994

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     This schedule  contains summary  financial  information  extracted from the
consolidated  balance sheets and statements of operations for Telos  Corporation
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK>                         0000320121
<NAME>                        Telos Corporation
<CURRENCY>                    U.S. Dollars
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 JAN-01-1998
<PERIOD-END>                                   DEC-31-1998
<EXCHANGE-RATE>                                1
<CASH>                                             408,000
<SECURITIES>                                             0
<RECEIVABLES>                                   57,522,000
<ALLOWANCES>                                       739,000
<INVENTORY>                                      8,662,000 
<CURRENT-ASSETS>                                70,724,000
<PP&E>                                          38,480,000
<DEPRECIATION>                                  24,159,000
<TOTAL-ASSETS>                                  95,251,000
<CURRENT-LIABILITIES>                           37,451,000
<BONDS>                                         54,651,000
                           37,360,000
                                              0
<COMMON>                                            78,000
<OTHER-SE>                                     (45,999,000)   
<TOTAL-LIABILITY-AND-EQUITY>                    95,251,000
<SALES>                                        101,736,000 
<TOTAL-REVENUES>                               207,086,000
<CGS>                                           93,153,000
<TOTAL-COSTS>                                  182,915,000 
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                    39,000
<INTEREST-EXPENSE>                               6,555,000
<INCOME-PRETAX>                                 (8,068,000)
<INCOME-TAX>                                     1,103,000 
<INCOME-CONTINUING>                             (9,171,000) 
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                    (9,171,000)
<EPS-PRIMARY>                                            0
<EPS-DILUTED>                                            0
        


</TABLE>


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