HBO & CO
10-Q, 1997-08-06
COMPUTER INTEGRATED SYSTEMS DESIGN
Previous: CENTURY PROPERTIES FUND XIV, 10QSB, 1997-08-06
Next: PRE PAID LEGAL SERVICES INC, 4, 1997-08-06



<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
 
                              WASHINGTON, DC 20549
                            ------------------------
 
                                   FORM 10-Q
                                ---------------
 
<TABLE>
<S>        <C>
/X/        QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
           SECURITIES EXCHANGE ACT OF 1934
</TABLE>
 
FOR THE QUARTERLY PERIOD ENDED JUNE 30, 1997
 
                                       OR
 
<TABLE>
<S>        <C>
/ /        TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
           SECURITIES EXCHANGE ACT OF 1934
</TABLE>
 
For the transition period from           to
 
Commission file number 0-9900
 
                                 HBO & COMPANY
 
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                         <C>
         DELAWARE                37-0986839
     (State or other          (I.R.S. Employer
     jurisdiction of
     incorporation or          Identification
      organization)                Number)
</TABLE>
 
                           301 PERIMETER CENTER NORTH
                                ATLANTA, GEORGIA
                                     30346
 
                    (Address of principal executive offices)
                                   (Zip Code)
 
                                 (770) 393-6000
 
              (Registrant's telephone number, including area code)
 
                                      N/A
 
   (Former name, former address and former fiscal year, if changed since last
                                    report.)
 
    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 / /.
 
                     APPLICABLE ONLY TO CORPORATE ISSUERS:
 
    Indicate the number of shares outstanding of each of the issuer's classes of
common stock as of the latest practicable date.
 
<TABLE>
<CAPTION>
              CLASS                         SHARES OUTSTANDING AT JULY 31, 1997
- ----------------------------------  ----------------------------------------------------
<S>                                 <C>
   Common Stock, $.05 par value                          98,978,153
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                         PART 1--FINANCIAL INFORMATION
 
ITEM 1. FINANCIAL STATEMENTS.
 
                     CONSOLIDATED BALANCE SHEETS--UNAUDITED
                                 (000 OMITTED)
 
<TABLE>
<CAPTION>
                                                                                         JUNE 30,    DECEMBER 31,
                                                                                           1997          1996
                                                                                       ------------  ------------
<S>                                                                                    <C>           <C>
                                                     ASSETS
CURRENT ASSETS:
  Cash and Cash Equivalents..........................................................  $    261,273   $  199,959
  Short-Term Investments.............................................................        33,825       25,639
  Receivables, Net of Allowance For Doubtful Accounts of $13,757 and $10,770.........       325,505      331,598
  Current Deferred Income Taxes......................................................        31,253       25,020
  Inventories........................................................................         7,237        7,025
  Prepaids and Other Current Assets..................................................        16,545       16,557
                                                                                       ------------  ------------
    Total Current Assets.............................................................       675,638      605,798
                                                                                       ------------  ------------
INTANGIBLES
  Net of Accumulated Amortization of $39,791 and $31,967.............................       171,056      181,440
CAPITALIZED SOFTWARE
  Net of Accumulated Amortization of $44,542 and $38,251.............................        67,621       62,677
PROPERTY AND EQUIPMENT
  Net of Accumulated Depreciation of $120,082 and $110,468...........................        71,869       55,839
DEFERRED INCOME TAXES................................................................        40,123       39,869
OTHER NONCURRENT ASSETS, NET.........................................................         8,380       13,724
                                                                                       ------------  ------------
TOTAL ASSETS.........................................................................  $  1,034,687   $  959,347
                                                                                       ------------  ------------
                                                                                       ------------  ------------
                                      LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Deferred Revenue...................................................................  $     99,570   $   98,178
  Other Current Liabilities..........................................................       204,362      238,212
                                                                                       ------------  ------------
    Total Current Liabilities........................................................       303,932      336,390
                                                                                       ------------  ------------
LONG-TERM DEBT.......................................................................           155          192
OTHER LONG-TERM LIABILITIES..........................................................         8,145        7,054
                                                                                       ------------  ------------
    Total Liabilities................................................................       312,232      343,636
                                                                                       ------------  ------------
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
  Preferred Stock, 1,000 Shares Authorized and No Shares Issued......................       --            --
  Common Stock, $.05 Par Value, 250,000 Shares Authorized and 128,702 and 128,574
    Shares Issued....................................................................         6,434        6,428
  Additional Paid-in Capital.........................................................       562,024      514,698
  Retained Earnings..................................................................       227,440      171,466
                                                                                       ------------  ------------
                                                                                            795,898      692,592
  Treasury Stock, at Cost (29,971 and 31,535 Shares).................................       (73,443)     (76,881)
                                                                                       ------------  ------------
    Total Stockholders' Equity.......................................................       722,455      615,711
                                                                                       ------------  ------------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY...........................................  $  1,034,687   $  959,347
                                                                                       ------------  ------------
                                                                                       ------------  ------------
</TABLE>
 
All prior periods have been restated to reflect the 1997 acquisitions of AMISYS
    Managed Care Systems, Inc. and Enterprise Systems, Inc. in pooling
    transactions.
 
The accompanying Notes to Consolidated Financial Statements are an integral part
    of these consolidated financial statements.
 
                                       2
<PAGE>
                  CONSOLIDATED STATEMENTS OF INCOME--UNAUDITED
                    (000 OMITTED EXCEPT FOR PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                     THREE MONTHS ENDED       SIX MONTHS ENDED
                                                                          JUNE 30,                JUNE 30,
                                                                   ----------------------  ----------------------
<S>                                                                <C>         <C>         <C>         <C>
                                                                      1997        1996        1997        1996
                                                                   ----------  ----------  ----------  ----------
REVENUE:
  Systems........................................................  $  133,714  $  102,999  $  246,882  $  182,406
  Services.......................................................     136,748     113,298     269,640     225,632
                                                                   ----------  ----------  ----------  ----------
    Total Revenue................................................     270,462     216,297     516,522     408,038
OPERATING EXPENSE:
  Cost of Operations.............................................     118,574      96,638     226,412     181,665
  Marketing......................................................      37,347      31,636      73,128      60,582
  Research and Development.......................................      20,316      19,359      39,536      37,158
  General and Administrative.....................................      23,538      24,784      47,152      48,571
  Nonrecurring Charge............................................      35,420       8,453      35,420       8,453
                                                                   ----------  ----------  ----------  ----------
    Total Operating Expense......................................     235,195     180,870     421,648     336,429
                                                                   ----------  ----------  ----------  ----------
OPERATING INCOME.................................................      35,267      35,427      94,874      71,609
Other Income, Net................................................       4,191       1,359       6,471       2,883
                                                                   ----------  ----------  ----------  ----------
Income Before Income Taxes.......................................      39,458      36,786     101,345      74,492
Provision for Income Taxes.......................................      15,783      14,471      40,538      29,254
                                                                   ----------  ----------  ----------  ----------
NET INCOME.......................................................  $   23,675  $   22,315  $   60,807  $   45,238
                                                                   ----------  ----------  ----------  ----------
                                                                   ----------  ----------  ----------  ----------
EARNINGS PER SHARE:
  Primary........................................................  $      .23  $      .22  $      .60  $      .45
                                                                   ----------  ----------  ----------  ----------
                                                                   ----------  ----------  ----------  ----------
  Fully Diluted..................................................  $      .23  $      .22  $      .60  $      .45
                                                                   ----------  ----------  ----------  ----------
                                                                   ----------  ----------  ----------  ----------
WEIGHTED AVERAGE SHARES OUTSTANDING:
  Primary........................................................     101,337      99,975     100,793      99,517
                                                                   ----------  ----------  ----------  ----------
                                                                   ----------  ----------  ----------  ----------
  Fully Diluted..................................................     101,569     100,169     100,998      99,971
                                                                   ----------  ----------  ----------  ----------
                                                                   ----------  ----------  ----------  ----------
CASH DIVIDENDS DECLARED PER SHARE................................  $      .02  $      .02  $      .04  $      .04
                                                                   ----------  ----------  ----------  ----------
                                                                   ----------  ----------  ----------  ----------
</TABLE>
 
All prior periods have been restated to reflect the 1997 acquisitions of AMISYS
    Managed Care Systems, Inc. and Enterprise Systems, Inc. in pooling
    transactions.
 
The accompanying Notes to Consolidated Financial Statements are an integral part
    of these consolidated financial statements.
 
                                       3
<PAGE>
                CONSOLIDATED STATEMENTS OF CASH FLOWS--UNAUDITED
                                 (000 OMITTED)
 
<TABLE>
<CAPTION>
                                                                                             FOR THE SIX MONTHS
                                                                                               ENDED JUNE 30,
                                                                                           ----------------------
<S>                                                                                        <C>         <C>
                                                                                              1997        1996
                                                                                           ----------  ----------
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net Income for the Period..............................................................  $   60,807  $   45,238
  Adjustments to Reconcile Net Income to Net Cash
  Provided by Operating Activities:
    Depreciation and Amortization........................................................      28,303      25,425
    Nonrecurring Charge..................................................................      35,420       8,453
    Provision for Noncurrent Deferred Income Taxes.......................................       3,089       9,133
    Gain on Sale of Investments..........................................................      (1,582)     --
    Changes in Assets and Liabilities, Net of Acquisitions:
      Receivables........................................................................       5,383     (31,724)
      Current Deferred Income Taxes......................................................      (5,633)      1,481
      Inventories........................................................................        (212)      1,985
      Prepaids and Other Current Assets..................................................      (6,149)     (2,191)
      Noncurrent Deferred Income Tax.....................................................      (3,343)     --
      Other Noncurrent Assets............................................................         913      (1,529)
      Deferred Revenue...................................................................       1,392       2,805
      Other Current Liabilities..........................................................     (25,902)    (11,097)
    Other, Net...........................................................................        (120)         (5)
                                                                                           ----------  ----------
        Total Adjustments................................................................      31,559       2,736
                                                                                           ----------  ----------
        Net Cash Provided by Operating Activities........................................      92,366      47,974
                                                                                           ----------  ----------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Sale of Property and Equipment.........................................................       2,497         640
  Capital Expenditures...................................................................     (31,983)    (10,069)
  Capitalized Software...................................................................     (15,590)    (13,769)
  Purchases of Businesses, Net of Cash Acquired..........................................        (300)    (17,892)
  Proceeds from Sale or Maturity of Investments..........................................      36,349      12,727
  Purchase of Investments................................................................     (39,986)     (8,075)
  Other..................................................................................        (490)        477
                                                                                           ----------  ----------
        Net Cash Used in Investing Activities............................................     (49,503)    (35,961)
                                                                                           ----------  ----------
        Net Cash Provided Before Financing Activities....................................      42,863      12,013
                                                                                           ----------  ----------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from Issuance of Common Stock.................................................      23,100      10,669
  Repayment of Long-Term Debt............................................................        (447)       (759)
  Repayment of Capital Leases............................................................        (165)       (413)
  Purchase of Treasury Stock.............................................................        (401)     (1,026)
  Payment of Dividends...................................................................      (3,636)     (4,923)
                                                                                           ----------  ----------
        Net Cash Provided by Financing Activities........................................      18,451       3,548
                                                                                           ----------  ----------
INCREASE IN CASH AND CASH EQUIVALENTS....................................................      61,314      15,561
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD.........................................     199,959     103,369
                                                                                           ----------  ----------
CASH AND CASH EQUIVALENTS AT END OF PERIOD...............................................  $  261,273  $  118,930
                                                                                           ----------  ----------
                                                                                           ----------  ----------
CASH PAID DURING THE PERIOD FOR:
  Interest...............................................................................  $      116  $      578
  Income Taxes...........................................................................  $   26,856  $   10,925
</TABLE>
 
All prior periods have been restated to reflect the 1997 acquisitions of AMISYS
    Managed Care Systems, Inc. and Enterprise Systems, Inc. in pooling
    transactions.
 
The accompanying Notes to Consolidated Financial Statements are an integral part
    of these consolidated financial statements.
 
                                       4
<PAGE>
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
    1. The consolidated financial statements include all adjustments that, in
the opinion of management, are necessary for a fair presentation of the results
for the periods indicated. All such adjustments are of a normal recurring
nature. Quarterly results of operations are not necessarily indicative of annual
results. Certain previously reported amounts have been reclassified to conform
to the current presentation. These statements should be read in conjunction with
the consolidated financial statements and the notes thereto included in the HBO
& Company (the "Company" or "HBOC") 1996 Annual Report on Form 10-K for the
fiscal year ended December 31, 1996.
 
    2. In the second quarter of 1997, the Company amended and restated its $50
million long-term revolving credit agreement. As of June 30, 1997, there was no
outstanding balance on the agreement. Interest is payable at the Company's
option of prime or LIBOR plus 0.5% (6.1875% as of June 30, 1997). A commitment
fee of 0.25% per annum is payable quarterly on the unused portion of the
commitment. The agreement, which expires June 30, 1999, contains certain net
worth, cash flow and financial ratio covenants. The Company is in compliance
with these covenants at June 30, 1997.
 
    The Company had an agreement with a financial institution whereby the
Company could sell on an ongoing basis, with partial recourse, an undivided
interest in a pool of customer receivables. This agreement was canceled on April
7, 1997.
 
    3. On June 13, 1997, the Company completed the acquisition of AMISYS Managed
Care Systems, Inc. (AMISYS), a leading provider of information systems for
managed care entities and other parties that assume financial risk for
healthcare populations. The acquisition was accounted for as a pooling of
interests, therefore all prior period amounts have been restated. AMISYS
stockholders received 0.35 of a share of HBOC common stock for each share of
AMISYS common stock, or approximately 2.7 million HBOC shares.
 
    4. On June 26, 1997, the Company completed the acquisition of Enterprise
Systems, Inc. (ESi), a leading developer of resource management solutions,
including materials management, operating room logistics, scheduling and
financial management. The acquisition was accounted for as a pooling of
interests, therefore all prior period amounts have been restated. The
stockholders of ESi received 0.4579 of a share of HBOC common stock for each
share of ESi common stock, or approximately 3.8 million HBOC shares.
 
    5. During the second quarter of 1997, the Company recorded a $35.4 million
nonrecurring charge related to the acquisitions of AMISYS and ESi. The charge
consisted of transaction costs of $5.8 million, write-downs of long-lived assets
of $10.2 million, severance and employee-related costs of $6.6 million and other
product-related costs of $12.8 million.
 
                                       5
<PAGE>
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
    6. During the first quarter of 1997, the Financial Accounting Standards
Board (FASB) issued Statement No. 128, Earnings Per Share. This statement sets
out new guidelines for the calculation and presentation of earnings per share
but cannot be adopted until December 31, 1997. The following table presents a
reconciliation of basic and diluted weighted average shares outstanding and a
pro forma calculation of earnings per share using the guidelines of Statement
No. 128.
 
<TABLE>
<CAPTION>
                                                         FOR THE THREE MONTHS    FOR THE SIX MONTHS
                                                            ENDED JUNE 30,         ENDED JUNE 30,
                                                         ---------------------  ---------------------
(000 OMITTED EXCEPT PER SHARE DATA)                         1997       1996        1997       1996
- -------------------------------------------------------  ----------  ---------  ----------  ---------
<S>                                                      <C>         <C>        <C>         <C>
Basic weighted average shares outstanding..............      98,529     95,603      97,958     95,390
ADD: Shares of common stock assumed issued upon
  exercise of stock options using the "treasury stock"
  method as it applies to the computation of diluted
  earnings per share...................................       2,808      4,372       2,835      4,127
                                                         ----------  ---------  ----------  ---------
Diluted weighted average shares outstanding............     101,337     99,975     100,793     99,517
                                                         ----------  ---------  ----------  ---------
                                                         ----------  ---------  ----------  ---------
Net income used in the computation of basic and diluted
  earnings per share...................................  $   23,675  $  22,315  $   60,807  $  45,238
                                                         ----------  ---------  ----------  ---------
                                                         ----------  ---------  ----------  ---------
Earnings per share
  Basic................................................  $      .24  $     .23  $      .62  $     .47
                                                         ----------  ---------  ----------  ---------
                                                         ----------  ---------  ----------  ---------
  Diluted..............................................  $      .23  $     .22  $      .60  $     .45
                                                         ----------  ---------  ----------  ---------
                                                         ----------  ---------  ----------  ---------
</TABLE>
 
    Excluding all nonrecurring charges, diluted earnings per share under the
guidelines of Statement No. 128 would be as follows: $.44 and $.27 for the Three
Months ended June 30, 1997 and 1996, respectively; and $.81 and $.51 for the Six
Months ended June 30, 1997 and 1996, respectively.
 
                                       6
<PAGE>
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
  CONDITION AND RESULTS OF OPERATIONS.
 
    IN THE SECOND QUARTER OF 1997, HBOC COMPLETED THE ACQUISITIONS OF AMISYS
MANAGED CARE SYSTEMS, INC. (AMISYS) AND ENTERPRISE SYSTEMS, INC. (ESI) IN
POOLING TRANSACTIONS. ALL PRIOR PERIOD INFORMATION HAS BEEN RESTATED FOR THESE
TRANSACTIONS. UNLESS STATED OTHERWISE, ALL EXPENSE, INCOME AND PER SHARE AMOUNTS
EXCLUDE THE $35.4 MILLION NONRECURRING CHARGE RELATED TO THE 1997 ACQUISITIONS
OF AMISYS AND ESI, AND A SECOND QUARTER 1996 NONRECURRING CHARGE OF $8.5 MILLION
RELATED TO AN ACQUISITION COMPLETED BY ESI.
 
RESULTS OF OPERATIONS
 
    QUARTER AND SIX MONTHS ENDED JUNE 30, 1997, COMPARED TO QUARTER AND SIX
MONTHS ENDED JUNE 30, 1996:
 
SUMMARY
 
    For the quarter and six months ended June 30, 1997, HBOC posted earnings per
share of $.44 and $.81, respectively, a 63% increase over earnings per share of
$.27 for the second quarter of 1996 and a 62% increase over earnings per share
of $.50 for the first six months of 1996. Including nonrecurring charges,
earnings per share for the quarter and six months ended June 30, 1997, were $.23
and $.60, respectively, compared to $.22 and $.45 for the quarter and six months
ended June 30, 1996.
 
    Total revenue for the second quarter of 1997 increased 25% to $270.5 million
from $216.3 million in the second quarter of 1996, and 27% to $516.5 million
from $408.0 million for the six months ended June 30, 1997, compared to the same
period in 1996, primarily due to strong software license fee, service and
hardware revenue.
 
    Operating expense excluding nonrecurring charges increased only 16% for the
second quarter and 18% for the six months ended June 30, 1997, compared to the
same periods in 1996. The Company continues to make progress in the area of
employee productivity, with revenue per average employee at June 30, 1997 of
$193,000, up from $164,000 at June 30, 1996.
 
    These changes in revenue and expense combined to boost net income for the
quarter and six months ended June 30, 1997, by 64% to $44.9 million and 63% to
$82.1 million, respectively. Including nonrecurring charges, net income
increased 6% to $23.7 million and 34% to $60.8 million for the quarter and six
months ended June 30, 1997, compared to the same periods in 1996.
 
REVENUE
 
    Software license fee revenue grew 31% to $86.0 million for the second
quarter of 1997 and 40% to $163.6 million for the six months ended June 30,
1997, compared to the same periods in 1996. Contributing to these increases was
the continuing strong demand for the Pathways 2000-Registered Trademark- line of
enterprisewide solutions, including a significant increase in the sale of
Pathways Homecare, HBOC's solution for the home health industry. The Company
also experienced strong growth in its products for physician practices and in
its TRENDSTAR-Registered Trademark- decision support software. In addition,
HBOC's newest acquisition, ESi, closed its largest contract ever in the second
quarter of 1997. The significant growth in sales from these products
demonstrates not only the Company's ability to transition and quickly integrate
products into its portfolio, but also the growing desire of customers to partner
with a single vendor for solutions that span the full continuum of care.
 
    Hardware revenue increased 27% to $47.8 million for the second quarter and
27% to $83.3 million for the six months ended June 30, 1997, compared to the
same periods in 1996. These increases were primarily from hardware related to
the strong sales of RISC-based processors sold in conjunction with the
previously mentioned software and a continuing effort to increase sales of
add-on hardware to existing customers
 
                                       7
<PAGE>
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
  CONDITION AND RESULTS OF OPERATIONS. (CONTINUED)
through an expanded sales center. Hardware margins have remained stable for the
quarter and six months ended June 30, 1997 and also for the same periods in
1996.
 
    Implementation and one-time services revenue for the quarter and six months
ended June 30, 1997, increased 40% to $45.2 million from $32.2 million, and 36%
to $87.0 million from $63.8 million, compared to the same periods in 1996. This
increase was primarily due to the numerous implementations resulting from strong
system sales of the Company's STAR 2000, Pathways 2000 products and the newly
acquired AMISYS products for the managed care industry. The Company continues to
invest in programs designed to streamline the implementation process by giving
customer organizations more control over their implementation process and the
extent of HBOC involvement. As a result, the productivity of the Company's
implementation personnel continues to improve across most business groups.
 
    Maintenance and support revenue increased 12% to $54.7 million for the
second quarter of 1997 and 12% to $109.8 million for the six months ended June
30, 1997, compared to the same periods in 1996. This increase is the result of
an annual price increase, new maintenance contracts from increased software
sales and the expansion of the customer base. To manage this growth, improve
employee productivity and increase customer satisfaction, the Company has
completed the implementation of a central support system for the entire employee
and customer base.
 
    Outsourcing revenue increased 44% for the second quarter of 1997 and 46% for
the six months ended June 30, 1997, compared to the same periods in 1996. This
increase was mainly in international outsourcing revenue from a new site, which
began operations on January 1, 1997, and which performs computer processing
operations for healthcare providers in the South Thames region of the United
Kingdom.
 
    Systems revenue, which represents all software and hardware revenue,
increased to 49% of total revenue for the second quarter of 1997 and to 48% for
the six months ended June 30, 1997, compared to 48% and 45% for the same periods
in 1996. These increases in systems revenue as a percent of total revenue, were
mainly due to increases in software revenue as a percent of total revenue.
 
EXPENSE
 
    Cost of operations as a percent of revenue decreased to 44% from 45% in both
the quarter and the six months ended June 30, 1997, compared to the same periods
in 1996. These decreases were primarily a result of employee productivity
enhancements in implementation and support, and strong high-margin software
sales. In conjunction with decreases in cost of operations as a percent of
revenue, the gross margin for the quarter and the six months ended June 30,
1997, was 56% for both periods, compared to 55% for the same periods in 1996.
Cost of operations expense increased in both periods as compared to 1996
primarily due to increased personnel expense as a result of the overall growth
of the Company, increased hardware costs associated with the growth in hardware
sales and increased software royalties expense due to increases in software
sales.
 
    Marketing expense as a percent of revenue decreased to 14% from 15% for both
the quarter and six months ended June 30, 1997, compared to the same periods in
1996. Marketing expense increased for both periods primarily due to higher
personnel and commission expenses related to the growth in size and revenue of
the Company.
 
    Research and development (R&D) expense as a percent of revenue decreased to
8% from 9% for both the quarter and six months ended June 30, 1997, compared to
the same periods in 1996. The R&D capitalization rate increased to 30% from 27%
for the second quarter, and to 28% from 27% for the six months ended June 30,
1997, compared to the same periods in 1996. The R&D capitalization rates
increased due to continued leveraging of fixed costs and the restatement of
prior periods due to
 
                                       8
<PAGE>
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
  CONDITION AND RESULTS OF OPERATIONS. (CONTINUED)
acquisitions. The increase in actual R&D expense is mainly due to increases in
personnel costs associated with growth in the Company to handle the increased
project load.
 
    General and administrative (G&A) expense as a percent of revenue decreased
to 9% in the second quarter of 1997 from 11% in the second quarter of 1996, and
to 9% for the six months ended June 30, 1997 from 12% for the same period in
1996. Actual G&A expense decreased slightly for both periods primarily due to
realized cost saving from the integration of operations of acquired companies.
 
    Operating expense excluding nonrecurring charges grew at a slower rate than
revenue for both the quarter and six months ended June 30, 1997, compared to the
same period in 1996, due to strong software sales, successful cost-control
programs and productivity enhancements. Total operating income increased 61% for
the quarter and 63% for the six months ended June 30, 1997, compared to the same
periods in 1996. In addition, operating income as a percent of revenue increased
to 26% for the second quarter of 1997 from 20% for the second quarter of 1996,
and to 25% for the six months ended June 30, 1997, compared to 20% for the same
period in 1996. These increases represent a significant growth in volume and
increased efficiency in operations.
 
    The tax rate increased to 40% for the quarter and six months ended June 30,
1997, from 39% for the same periods in 1996. This increase was due to the
September 1996 pooling acquisition of Management Software, Inc. which had
formerly been a Subchapter S Corporation and therefore did not provide for
corporate taxes on a historical basis.
 
LIQUIDITY AND CAPITAL RESOURCES
 
    JUNE 30, 1997, COMPARED TO DECEMBER 31, 1996:
 
    The Company continues to improve the strength and quality of its balance
sheet. At June 30, 1997, with $295 million in cash and short-term investments,
no bank debt and an improving current ratio, the Company remains well-positioned
for continued growth.
 
    During the first six months of 1997, the Company generated $92.4 million in
cash flow from operations. The Company used $49.5 million in investing
activities, primarily consisting of $15.6 million for software development
capitalization and $32.0 million for capital expenditures. An additional $18.5
million was provided from financing activities, primarily proceeds from the
issuance of common stock pursuant to employee benefit plans. As a result, the
Company's cash balance increased 31% to $261 million at June 30, 1997, from $200
million at December 31, 1996.
 
    The Company's current ratio increased to 2.2:1 at June 30, 1997, from 1.8:1
at December 31, 1996. Current assets increased $70 million, primarily reflecting
a large increase in cash and short-term investments, partially offset by a
decrease in receivables. Receivables as a percent of current assets decreased to
48% at June 30, 1997, from 55% at December 31, 1996. The Company's management
places a high priority on the area of receivables and the Company continues to
maintain a low delinquency rate. Current liabilities decreased $32 million,
mainly due to the pay-down of year-end accruals.
 
    The Company has access to several financing sources, including a $5 million
line of credit and a $50 million revolving credit agreement. As of June 30,
1997, there were no outstanding balances on either. Management believes that the
Company's existing cash and short-term investment balances, future cash flow
from operations and amounts available under existing credit arrangements are
sufficient to meet ongoing operational and capital expenditure requirements, as
well as to fund costs associated with future equity acquisitions and small
acquisitions for cash.
 
FORWARD-LOOKING STATEMENTS
 
    This report contains certain forward-looking statements, which are qualified
by the risks and uncertainties described from time to time in HBOC's reports
filed with the Securities and Exchange Commission, including the Annual Report
on Form 10-K for the fiscal year ended December 31, 1996 and the Quarterly
Report on Form 10-Q for the quarter ended March 31, 1997.
 
                                       9
<PAGE>
                              ARTHUR ANDERSEN LLP
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To the Stockholders and
Board of Directors of
HBO & Company:
 
    We have reviewed the accompanying consolidated condensed balance sheet of
HBO & COMPANY (a Delaware corporation) AND SUBSIDIARIES as of June 30, 1997 and
the related statement of income for the three-month and six-month periods ended
June 30, 1997 and 1996, and the statement of cash flows for the six-month
periods ended June 30, 1997 and 1996. These financial statements are the
responsibility of the Company's management.
 
    We conducted our review in accordance with standards established by the
American Institute of Certified Public Accountants. A review of interim
financial information consists principally of applying analytical procedures to
financial data and making inquiries of persons responsible for financial and
accounting matters. It is substantially less in scope than an audit conducted in
accordance with generally accepted auditing standards, the objective of which is
the expression of an opinion regarding the financial statements taken as a
whole. Accordingly, we do not express such an opinion.
 
    Based on our review, we are not aware of any material modifications that
should be made to the financial statements referred to above for them to be in
conformity with generally accepted accounting principles.
 
                                          ARTHUR ANDERSEN LLP
 
Atlanta, Georgia
 
July 16, 1997
 
                                       10
<PAGE>
                           PART II--OTHER INFORMATION
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.
 
    The Company held its Annual Meeting of Stockholders on May 12, 1997. Of the
91,218,193 shares of common stock outstanding and entitled to vote at this
meeting, 83,641,368 were represented at the meeting, in person or by proxy. The
following matters were voted upon.
 
    1. The election of a Board of Directors consisting of eight persons named as
nominees for Director in the Proxy Statement of the Company, to serve as
Directors of the Company, each to serve until the next Annual Meeting of the
Stockholders or until their successor shall have been elected. The result of the
vote for each individual Director was:
 
<TABLE>
<CAPTION>
                                                                                               FOR       WITHHOLD
                                                                                           ------------  ---------
<S>                                                                                        <C>           <C>
Alfred C. Eckert III.....................................................................    82,941,043    700,325
Holcombe T. Green, Jr....................................................................    83,457,922    183,446
Philip A. Incarnati......................................................................    83,459,160    182,208
Alton F. Irby III........................................................................    83,459,974    181,394
Gerald E. Mayo...........................................................................    83,456,243    185,125
Charles W. McCall........................................................................    83,400,258    241,110
James V. Napier..........................................................................    83,447,979    193,389
Donald C. Wegmiller......................................................................    83,452,275    189,093
</TABLE>
 
    Accordingly, all eight nominees were duly elected Directors of the Company.
 
    2. The approval of the HBO & Company Omnibus Stock Incentive Plan. The
result of the vote was 48,034,912 shares in favor, 32,042,807 shares opposed,
202,864 shares abstained and 3,360,785 shares Broker non-vote. Accordingly, the
Plan was approved.
 
    3. The ratification of the appointment of Arthur Andersen LLP as independent
public accountants to audit the account of the Company for the fiscal year
ending December 31, 1997. The result of the vote was 83,435,647 shares in favor,
110,622 shares opposed and 95,099 shares abstained. Accordingly, the appointment
of Arthur Andersen LLP was ratified.
 
ITEM 5. OTHER INFORMATION
 
    The unaudited combined operations for the first full month subsequent to the
June, 1997 pooling acquisitions of AMISYS and ESi were as follows:
 
<TABLE>
<CAPTION>
                                                                                                 FOR THE MONTH
                                                                                                 ENDED JULY 31,
                                                                                              --------------------
(000 OMITTED)                                                                                   1997       1996
- --------------------------------------------------------------------------------------------  ---------  ---------
<S>                                                                                           <C>        <C>
Revenue.....................................................................................  $  66,765  $  52,099
Net Income..................................................................................  $   2,753  $    (313)
</TABLE>
 
                                       11
<PAGE>
ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K.
 
(a) Exhibits:
 
<TABLE>
<S>        <C>                                                                                   <C>
10         Second Amended and Restated Revolving Credit Agreement dated June 30, 1997 among HBO
           & Company, HBO & Company of Georgia, BankBoston, N.A., NationsBank of Texas, N.A.
           and other lending institutions, and BankBoston, N.A. as Agent.
 
11         Statement regarding computation of per share earnings...............................
 
15         Letter re: unaudited interim financial information..................................
 
27a        Financial Data Schedule.............................................................
 
27b        Financial Data Schedule restated for March 31, 1997.................................
 
27c        Financial Data Schedule restated for December 31, 1996..............................
 
27d        Financial Data Schedule restated for September 30, 1996.............................
 
27e        Financial Data Schedule restated for June 30, 1996..................................
 
27f        Financial Data Schedule restated for March 31, 1996.................................
 
27g        Financial Data Schedule restated for December 31, 1995..............................
 
27h        Financial Data Schedule restated for December 31, 1994..............................
</TABLE>
 
(b) Reports on Form 8-K filed during the quarter ended June 30, 1997, or
subsequent to that date but prior to the filing date of this Form 10-Q: NONE
 
                                       12
<PAGE>
                                   SIGNATURE
 
    Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.
 
<TABLE>
<S>                                          <C>        <C>
                                             HBO & COMPANY
                                             (Registrant)
 
Date: August 6, 1997                         By:        /s/ JAY P. GILBERTSON
                                                        ------------------------------------------
                                                        Jay P. Gilbertson
                                                        EXECUTIVE VICE PRESIDENT,
                                                        CHIEF FINANCIAL OFFICER, TREASURER,
                                                        PRINCIPAL ACCOUNTING OFFICER AND
                                                        SECRETARY
</TABLE>
 
                                       13

<PAGE>

                                                                 EXHIBIT 10


                          SECOND AMENDED AND RESTATED
 
                           REVOLVING CREDIT AGREEMENT
 
                           dated as of June 30, 1997

                                     among
 
                                 HBO & COMPANY,
 
                           HBO & COMPANY OF GEORGIA,
 
    BANKBOSTON, N.A. (formerly known as The First National Bank of Boston),
 
                           NATIONSBANK OF TEXAS, N.A.

     and the other lending institutions set forth on Schedule 1 hereto,

                                      and
 
                               BANKBOSTON, N.A., 

     as Agent with BancBoston Securities Inc. having acted as Arranger



<PAGE>

                               TABLE OF CONTENTS
 
<TABLE>
<S> <C>                                                                       <C>
1.  DEFINITIONS AND RULES OF INTERPRETATION.................................    1
       1.1.  Definitions....................................................    1
       1.2.  Rules of Interpretation........................................   13
 
2.  THE REVOLVING CREDIT FACILITY...........................................   14
       2.1.  Commitment to Lend.............................................   14
       2.2.  Commitment Fee.................................................   14
       2.3.  Reduction of Total Commitment..................................   15
       2.4.  The Revolving Credit Notes.....................................   15
       2.5.  Interest on Revolving Credit Loans.............................   15
       2.6.  Requests for Revolving Credit Loans............................   16
       2.7.  Conversion Options.............................................   16
                2.7.1.  Conversion to Different Type 
                          of Revolving Credit Loan..........................   16
                2.7.2.  Continuation of Type of 
                          Revolving Credit Loan.............................   17
                2.7.3.  LIBOR Rate Loans....................................   17
       2.8.  Funds for Revolving Credit Loan................................   17
                2.8.1.  Funding Procedures..................................   17
                2.8.2.  Advances by Agent...................................   18

3. REPAYMENT OF THE REVOLVING CREDIT LOANS..................................   18
       3.1.  Maturity.......................................................   18
       3.2.  Mandatory Repayments of Revolving Credit
              Loans.........................................................   19
       3.3.  Optional Repayments of Revolving Credit
              Loans.........................................................   19
 
4. LETTERS OF CREDIT........................................................   19
       4.1.  Letter of Credit Commitments...................................   19
                4.1.1.  Commitment to Issue Letters of Credit...............   19
                4.1.2.  Letter of Credit Applications.......................   20
                4.1.3.  Terms of Letters of Credit..........................   20
                4.1.4.  Reimbursement Obligations of Banks..................   20
                4.1.5.  Participations of Banks.............................   20
       4.2.  Reimbursement Obligation of the Borrower.......................   21
       4.3.  Letter of Credit Payments......................................   21
       4.4.  Obligations Absolute...........................................   22
       4.5.  Reliance by Issuer.............................................   23
       4.6.  Letter of Credit Fee...........................................   23
 
5. CERTAIN GENERAL PROVISIONS...............................................   23
       5.1.  Fees...........................................................   23
       5.2.  Funds for Payments.............................................   24
                5.2.1.  Payments to Agent...................................   24
                5.2.2.  No Offset, etc.  ...................................   24
       5.3.  Computations...................................................   25
       5.4.  Inability to Determine LIBOR Rate..............................   25
       5.5.  Illegality.....................................................   25
       5.6.  Additional Costs, etc.  .......................................   26
       5.7.  Capital Adequacy...............................................   27
       5.8.  Certificate....................................................   28

<PAGE>

                                     -ii-

       5.9.  Indemnity......................................................   28
       5.10. Interest After Default.........................................   28
                5.10.1.  Overdue Amounts....................................   28
                5.10.2.  Amounts Not Overdue................................   29

6.  GUARANTY................................................................   29
 
7.  REPRESENTATIONS AND WARRANTIES..........................................   29
       7.1.  Corporate Authority............................................   29
                7.1.1.   Incorporation; Good Standing.......................   29
                7.1.2.   Authorization......................................   29
                7.1.3.   Enforceability.....................................   30
       7.2.   Governmental Approvals........................................   30
       7.3.   Title to Properties; Leases...................................   30
       7.4.   Financial Statements..........................................   30
       7.5.   No Material Changes, etc.  ...................................   31
       7.6    Franchises, Patents, Copyrights, etc.  .......................   31
       7.7    Litigation....................................................   31
       7.8    No Materially Adverse Contracts, etc. ........................   31
       7.9.   Compliance with Other Instruments, Laws, etc.  ...............   32
       7.10.  Tax Status....................................................   32
       7.11.  No Event of Default...........................................   32
       7.12.  Holding Company and Investment Company Acts...................   32
       7.13.  Absence of Financing Statements, etc.  .......................   32
       7.14.  Certain Transactions..........................................   33
       7.15.  Employee Benefit Plans........................................   33
                7.15.1.  In General.........................................   33
                7.15.2.  Terminability of Welfare Plans.....................   33
                7.15.3.  Guaranteed Pension Plans...........................   33
                7.15.4.  Multiemployer Plans................................   34
       7.16.  Regulations U and X...........................................   34
       7.17.  Environmental Compliance......................................   34
       7.18.  Subsidiaries, etc.  ..........................................   36
       7.19.  No Amendments to Certain Documents............................   36
       7.20.  Disclosure....................................................   36
 
8.  AFFIRMATIVE COVENANTS OF THE BORROWER...................................   37
       8.1.   Punctual Payment..............................................   37
       8.2.   Maintenance of Office.........................................   37
       8.3.   Records and Accounts..........................................   37
       8.4.   Financial Statements, Certificates and Information............   38
       8.5.   Notices.......................................................   39
                8.5.1.  Defaults............................................   39
                8.5.2.  Environmental Events................................   39
                8.5.3.  Notice of Litigation and Judgments..................   39
       8.6.   Corporate Existence; Maintenance of Properties................   40
       8.7.   Insurance.....................................................   40
       8.8.   Taxes.........................................................   41
       8.9.   Inspection of Properties and Books, etc.......................   41
                8.9.1.  General.............................................   41
 
<PAGE>

                                      -iii-


                8.9.2. Communications with Accountants......................   41
        8.10.  Compliance with Laws, Contracts, Licenses, and Permits.......   41
        8.11.  Employee Benefit Plans.......................................   42
        8.12.  Use of Proceeds..............................................   42
        8.13.  Further Assurances...........................................   42
 
9.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER..............................   42
        9.1.   Restrictions on Indebtedness.................................   43
        9.2.   Restrictions on Liens........................................   43
        9.3.   Restrictions on Investments..................................   44
        9.4.   Distributions................................................   45
        9.5.   Merger, Consolidation and Disposition of Assets..............   45
                9.5.1. Mergers and Acquisitions.............................   45
                9.5.2. Disposition of Assets................................   46
        9.6.   Compliance with Environmental Laws...........................   46
        9.7.   Employee Benefit Plans.......................................   46
 
10. FINANCIAL COVENANTS OF THE BORROWER.....................................   47
        10.1.  Operating Cash Flow to Total Debt Service....................   47
        10.2.  Leverage Ratio...............................................   47
        10.3.  Minimum Tangible Net Worth...................................   47
 
11.  CLOSING CONDITIONS.....................................................   47
        11.1.  Loan Documents...............................................   48
        11.2.  Certified Copies of Charter Documents........................   48
        11.3.  Corporate Action.............................................   48
        11.4.  Incumbency Certificate.......................................   48
        11.5.  Certificates of Insurance....................................   48
        11.6.  Solvency Certificate.........................................   48
        11.7.  Opinion of Counsel...........................................   49
        11.8.  Payment of Fees..............................................   49
        11.9.  Disbursement Instructions....................................   49
 
12. CONDITIONS TO ALL BORROWINGS............................................   49
        12.1.  Representations True; No Event of Default....................   49
        12.2.  No Legal Impediment..........................................   50
        12.3.  Governmental Regulation......................................   50
        12.4.  Proceedings and Documents....................................   50
 
13. EVENTS OF DEFAULT; ACCELERATION; ETC.  .................................   50
        13.1.  Events of Default and Acceleration...........................   50
        13.2.  Termination of Commitments...................................   54
        13.3.  Remedies.....................................................   54
        13.4.  Distribution of Proceeds.....................................   54
 
14. SETOFF..................................................................   55
 
15.  THE AGENT..............................................................   56
        15.1.  Authorization................................................   56
        15.2.  Employees and Agents.........................................   57
        15.3.  No Liability.................................................   57
        15.4.  No Representations...........................................   57
        15.5.  Payments.....................................................   58


<PAGE>

                                      -iv-


                15.5.1.  Payments to Agent..................................   58
                15.5.2.  Distribution by Agent..............................   58
                15.5.3.  Delinquent Banks...................................   58
        15.6.  Holders of Revolving Credit Notes............................   59
        15.7.  Indemnity....................................................   59
        15.8.  Agent as Bank................................................   59
        15.9.  Resignation..................................................   59
        15.10. Notification of Defaults and Events of Default...............   60
 
16. EXPENSES................................................................   60
 
17. INDEMNIFICATION.........................................................   61
 
18. SURVIVAL OF COVENANTS, ETC.  ...........................................   61

19. ASSIGNMENT AND PARTICIPATION............................................   62
        19.1.  Conditions to Assignment by Banks............................   62
        19.2.  Certain Representations and Warranties;
                  Limitations; Covenants....................................   62
        19.3.  Register.....................................................   64
        19.4.  New Revolving Credit Notes...................................   64
        19.5.  Participations...............................................   64
        19.6.  Disclosure...................................................   65
        19.7.  Assignee or Participant Affiliated with the Borrower.........   65
        19.8.  Miscellaneous Assignment Provisions..........................   65
        19.9.  Assignment by Borrower.......................................   66
 
20. NOTICES, ETC.  .........................................................   66
 
21. GOVERNING LAW...........................................................   67
 
22. HEADINGS................................................................   67
 
23. COUNTERPARTS............................................................   67
 
24. ENTIRE AGREEMENT, ETC.  ................................................   68
 
25. WAIVER OF JURY TRIAL....................................................   68
 
26. CONSENTS, AMENDMENTS, WAIVERS, ETC.   ..................................   68
 
27. SEVERABILITY............................................................   69
 
28. TRANSITIONAL ARRANGEMENTS...............................................   69
        28.1. Original Credit Agreement Superseded..........................   69
        28.2. Return and Cancellation of Revolving Credit Notes.............   69
        28.3. Interest and Fees Under Superseded Agreement..................   69

29. CONFIDENTIALITY.........................................................   69
</TABLE>

<PAGE>

                             SECOND AMENDED AND RESTATED
                              REVOLVING CREDIT AGREEMENT

     This SECOND AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT is made as 
of June 30, 1997, by and among HBO & COMPANY, a Delaware corporation 
("HBOC"), HBO & COMPANY OF GEORGIA, a Delaware corporation having its 
principal place of business at 301 Perimeter Center North, Atlanta, Georgia 
30346 (the "Borrower"), BANKBOSTON, N.A. (formerly known as The First 
National Bank of Boston), a national banking association, NATIONSBANK OF 
TEXAS, N.A., a national banking association and the other lending 
institutions listed on Schedule 1 hereto and BANKBOSTON, N.A. as agent for 
itself and such other lending institutions.

     WHEREAS, pursuant to an Amended and Restated Revolving Credit and Term 
Loan Agreement dated as of May 27, 1994 (as amended from time to time, the 
"Original Credit Agreement"), by and among HBOC, the Borrower, certain of the 
Banks (as hereinafter defined) and the Agent (as hereinafter defined), the 
Banks party thereto made a term loan to the Borrower for the purpose of 
financing an acquisition and made available revolving credit loans for 
general corporate and working capital purposes; and

     WHEREAS, HBOC and the Borrower have requested, among other things, to 
amend and restate the Original Credit Agreement and to provide additional 
financing, to refinance certain Indebtedness (as hereinafter defined) and for 
working capital and general corporate purposes, and the Banks are willing to 
amend and restate the Original Credit Agreement and to provide such 
additional financing on the terms and conditions set forth herein;

     NOW, THEREFORE, HBOC, the Borrower, the Banks and the Agent agree that 
on the Closing Date (as hereinafter defined) the Original Credit Agreement is 
hereby amended and restated in its entirety and shall remain in full force 
and effect only as set forth herein.

     1.  DEFINITIONS AND RULES OF INTERPRETATION.

     1.1  Definitions.   The following terms shall have the meanings set 
forth in this Section 1 or elsewhere in the provisions of this Credit 
Agreement referred to below:

     Affiliate.  Any Person that would be considered to be an affiliate of  
the Borrower under Rule 144(a) of the Rules and Regulations of the Securities 
and Exchange Commission, as in effect on the date hereof, if the Borrower 
were issuing securities.

                                     

<PAGE>


     Agent's Head Office.  The Agent's head office located at 100 Federal 
Street, Boston, Massachusetts 02110, or at such other location as the Agent 
may designate in writing from time to time.

     Agent.  BankBoston, N.A. (formerly known as The First National Bank of 
Boston) acting as agent for the Banks.

     Agent's Special Counsel.  Bingham, Dana & Gould LLP or such other 
counsel as may be approved by the Agent.

     Assignment and Acceptance.  See Section 19.1.

     Balance Sheet Date.  March 31, 1997.

     Banks.  BKB, NationsBank of Texas, N.A. and the other lending 
institutions listed on Schedule 1 hereto and any other Person who becomes an 
assignee of any rights and obligations of a Bank pursuant to Section 19.

     Base Rate.  The higher of (a) the annual rate of interest announced from 
time to time by BKB at its head office in Boston, Massachusetts, as its "base 
rate" and (b) one-half of one percent (1/2%) above the Federal Funds 
Effective Rate.  For the purposes of this definition, "Federal Funds 
Effective Rate" shall mean for any day, the rate per annum equal to the 
weighted average of the rates on overnight federal funds transactions with 
members of the Federal Reserve System arranged by federal funds brokers, as 
published for such day (or, if such day is not a Business Day, for the next 
preceding Business Day) by the Federal Reserve Bank of New York, or, if such 
rate is not so published for any day that is a Business Day, the average of 
the quotations for such day on such transactions received by the Agent from 
three funds brokers of recognized standing selected by the Agent.

     Base Rate Loans.  Revolving Credit Loans bearing interest calculated by 
reference to the Base Rate.

     BKB.  BankBoston, N.A. (formerly known as The First National Bank of 
Boston), a national banking association, in its individual capacity.

     Borrower.  As defined in the preamble hereto.

     Business Day.  Any day on which banking institutions in Boston, 
Massachusetts, are open for the transaction of banking business and, in the 
case of LIBOR Rate Loans, also a day which is a LIBOR Business Day.

     Capital Assets.  Fixed assets, both tangible (such as land, buildings, 
fixtures, machinery and equipment) and intangible (such as patents, 
copyrights, trademarks, franchises and good will); provided that Capital 
Assets shall not include any item customarily charged directly to expense or 
depreciated over a useful life of twelve (12) months or less in accordance 
with generally accepted accounting principles.

                                 2

<PAGE>

     Capital Expenditures.  Amounts paid or indebtedness incurred by the 
Borrower or any of its Subsidiaries in connection with the purchase or lease 
by the Borrower or any of its Subsidiaries of Capital Assets that would be 
required to be capitalized and shown on the balance sheet of such Person in 
accordance with generally accepted accounting principles or the lease of any 
assets by the Borrower or any of its Subsidiaries as lessee, under any 
Synthetic Lease to the extent that such assets would have been Capital Assets 
had the Synthetic Lease been treated for accounting purposes as a Capitalized 
Lease.

     Capitalized Leases.  Leases under which the Borrower or any of its 
Subsidiaries is the lessee or obligor, the discounted future rental payment 
obligations under which are required to be capitalized on the balance sheet 
of the lessee or obligor in accordance with generally accepted accounting 
principles.

     Cash Investment Policy.  The Cash Investment Policy of HBOC and its 
Subsidiaries, dated as of a date on or prior to the Closing Date and in form 
and substance satisfactory to the Agent.

     CERCLA.  See Section 7.18.

     Closing Date.  The first date on which the conditions set forth in 
Section 11 have been satisfied and any Revolving Credit Loans are to be made 
or any Letter of Credit is to be issued hereunder.

     Code.  The Internal Revenue Code of 1986.

     
     Commitment.  With respect to each Bank, the amount set forth on Schedule 
1 hereto as the amount of such Bank's commitment to make Revolving Credit 
Loans to the Borrower, as the same may be reduced from time to time; or if 
such commitment is terminated pursuant to the provisions hereof, zero.

     Commitment Percentage.  With respect to each Bank, the percentage set 
forth on Schedule 1 hereto as such Bank's percentage of the aggregate 
Commitments of all of the Banks, and with respect to the Letters of Credit, 
the percentage amount of each Bank as set forth on Schedule 1 hereto.

     Consolidated or consolidated.  With reference to any term defined 
herein, shall mean that term as applied to the accounts of HBOC, the Borrower 
and their Subsidiaries, consolidated in accordance with generally accepted 
accounting principles.

     Consolidated Net Income (or Deficit).  The consolidated net income (or 
deficit) of HBOC, the Borrower and their Subsidiaries, after deduction of all 
expenses, taxes, and other proper charges, determined in accordance with 
generally accepted accounting principles.

                                  3

<PAGE>


     Consolidated Net Worth.  The excess of Consolidated Total Assets over 
Consolidated Total Liabilities, less, to the extent otherwise includable in 
the computations of Consolidated Net Worth, any subscriptions receivable.

     Consolidated Operating Cash Flow.  For any quarter, an amount equal to 
(a) EBITDA for such period, less (b) the sum of (i) cash payments for all 
taxes paid during such period, plus (ii) Capital Expenditures made during the 
immediately preceding twelve month period, divided by four, plus (iii) the 
portion of the costs of software development required to be capitalized 
pursuant to Financial Accounting Standards Board Statement No. 86.

     Consolidated Tangible Net Worth.  The excess of Consolidated Total 
Assets over Consolidated Total Liabilities, and less the sum of:

          (a)  the total book value of all assets of HBOC, the Borrower and 
     their Subsidiaries properly classified as  intangible assets under 
     generally accepted accounting principles, including such items as good 
     will, the purchase price of acquired assets in excess of the fair market 
     value thereof, trademarks, trade names, service marks, brand names, 
     copyrights, patents and licenses, and rights with respect to the 
     foregoing; plus

          (b)  all amounts representing any write-up in the book value of any 
     assets of HBOC, the Borrower or their Subsidiaries resulting from a 
     revaluation thereof subsequent to the Balance Sheet Date (except as 
     result of the use of the purchase accounting method to record the 
     Acquisition), excluding adjustments to translate foreign assets and 
     liabilities for changes in foreign exchange rates made in accordance 
     with Financial Accounting Standards Board Statement No. 52; plus

          (c)  to the extent otherwise includable in the computation of 
     Consolidated Tangible Net Worth, any subscriptions receivable.

     Consolidated Total Assets.  The sum of (a) all assets of HBOC, the 
Borrower and their Subsidiaries determined on a consolidated basis in 
accordance with generally accepted accounting principles (the "consolidated 
balance sheet assets") plus (b) without duplication, all assets leased by 
HBOC, the Borrower or any of their Subsidiaries as lessee under any Synthetic 
Lease to the extent that such assets would have been consolidated balance 
sheet assets had the synthetic lease been treated for accounting purposes as 
a Capitalized Lease, plus (c) without duplication, all sold receivables 
referred to in clause (g) of the definition of the term "Indebtedness" to the 
extent that such receivables would have been consolidated balance sheet 
assets had they not been sold.

     Consolidated Total Debt Service.  For any period, the sum of (a) 
Consolidated Total Interest Expense for such period plus (b) an amount equal 
to the sum of all principal payments on Indebtedness that become due and 
payable or that are to become due and payable during such period pursuant to 
any agreement or 

                                  4

<PAGE>

instrument to which HBOC, the Borrower or any of their Subsidiaries is a 
party relating to the borrowing of money or the obtaining of credit or in 
respect of Capitalized Leases or any Synthetic Leases.  Demand obligations 
shall be deemed to be due and payable during any period during which such 
obligations are outstanding.

     Consolidated Total Interest Expense.  For any period, the aggregate 
amount of interest required to be paid or accrued by HBOC and its 
Subsidiaries during such period on all Indebtedness of HBOC and its 
Subsidiaries outstanding during all or any part of such period, whether such 
interest was or is required to be reflected as an item of expense or 
capitalized, including payments consisting of interest in respect of any 
Capitalized Leases or any Synthetic Lease, and including commitment fees, 
agency fees, facility fees, balance deficiency fees and similar fees or 
expenses in connection with the borrowing of money.

     Consolidated Total Liabilities.  All liabilities of HBOC, the Borrower 
and their Subsidiaries determined on a consolidated basis in accordance with 
generally accepted accounting principles and all Indebtedness of HBOC, the 
Borrower and their Subsidiaries, whether or not so classified.

     Conversion Request.  A notice given by the Borrower to the Agent of the 
Borrower's election to convert or continue a Revolving Credit Loan in 
accordance with Section 2.7.

     Credit Agreement.  This Second Amended and Restated Revolving Credit 
Agreement, including the Schedules and Exhibits hereto.

     Default.  See Section 13.1.

     Distribution.  The declaration or payment of any dividend on or in 
respect of any shares of any class of capital stock of HBOC or the Borrower, 
other than dividends payable solely in shares of common stock of HBOC or the 
Borrower; the purchase, redemption, or other retirement of any shares of any 
class of capital stock of HBOC or the Borrower, directly or indirectly 
through a Subsidiary of HBOC or the Borrower or otherwise; the return of 
capital by HBOC or the Borrower to its respective shareholders as such; or 
any other distribution on or in respect of any shares of any class of capital 
stock of the Borrower or HBOC.

     Dollars or $.  Dollars in lawful currency of the United States of 
America.

     Domestic Lending Office.  Initially, the office of each Bank designated 
as such in Schedule 1 hereto; thereafter, such other office of such Bank, if 
any, located within the United States that will be making or maintaining Base 
Rate Loans.

     Drawdown Date.  The date on which any Revolving Credit Loan is made or 
is to be made, and the date on which any Revolving Credit Loan is converted 
or continued in accordance with Section 2.7.

                                       5

<PAGE>

     EBITDA.  With respect to any fiscal period, an amount equal to the sum 
of (a) Consolidated Net Income for such period, plus (b) in each case to the 
extent deducted in the calculation of Consolidated Net Income and without 
duplication, (i) depreciation and amortization for such period, plus (ii) 
other noncash charges made in calculating Consolidated Net Income for such 
period, plus (iii) income tax expense for such period, plus (iv) Consolidated 
Total Interest Expense paid or accrued in such period.

     Eligible Assignee.  Any of (a) a commercial bank or finance company 
organized under the laws of the United States, or any State thereof or the 
District of Columbia, and having total assets in excess of $1,000,000,000; 
(b) a savings and loan association or savings bank organized under the laws 
of the United States, or any State thereof or the District of Columbia, and 
having a net worth of at least $100,000,000, calculated in accordance with 
generally accepted accounting principles; (c) a commercial bank organized 
under the laws of any other country which is a member of the Organization for 
Economic Cooperation and Development (the "OECD"), or a political subdivision 
of any such country, and having total assets in excess of $1,000,000,000, 
provided that such bank is acting through a branch or agency located in the 
country in which it is organized or another country which is also a member of 
the OECD; (d) the central bank of any country which is a member of the OECD; 
and (e) if, but only if, any Event of Default has occurred and is continuing, 
any other bank, insurance company, commercial finance company or other 
financial institution or other Person approved by the Agent, such approval 
not to be unreasonably withheld.

     Employee Benefit Plan.  Any employee benefit plan within the meaning of 
Section 3(3) of ERISA maintained or contributed to by HBOC, the Borrower or 
any ERISA Affiliate, other than a Multiemployer Plan.

     Environmental Laws.  See Section 7.17(a).

     ERISA.  The Employee Retirement Income Security Act of 1974.

     ERISA Affiliate.  Any Person which is treated as a single employer with 
the Borrower under Section 414 of the Code.

     ERISA Reportable Event.  A reportable event with respect to a Guaranteed 
Pension Plan within the meaning of Section 4043 of ERISA and the regulations 
promulgated thereunder as to which the requirement of notice has not been 
waived.

     Eurocurrency Reserve Rate.  For any day with respect to a LIBOR Rate 
Loan, the maximum rate (expressed as a decimal) at which any lender subject 
thereto would be required to maintain reserves under Regulation D of the 
Board of Governors of the Federal Reserve System (or any successor or similar 
regulations relating to such reserve requirements) against "Eurocurrency 
Liabilities" (as that term is used in Regulation D), if such liabilities were 
outstanding.  

                                  6

<PAGE>

The Eurocurrency Reserve Rate shall be adjusted automatically on and as of 
the effective date of any change in the Eurocurrency Reserve Rate.

     Event of Default.  See Section 13.1.

     Funded Debt.  At any time of determination, the aggregate amount of the 
outstanding Revolving Credit Loans and Maximum Drawing Amount on all issued 
and outstanding Letters of Credit on such date and other Indebtedness of the 
Borrower evidencing any Indebtedness of the Borrower to any seller of assets 
to the Borrower.

     generally accepted accounting principles.  (a) When used in Section 10, 
whether directly or indirectly through reference to a capitalized term used 
therein, means (i) principles that are consistent with the principles 
promulgated or adopted by the Financial Accounting Standards Board and its 
predecessors, in effect for the fiscal year ended on the Balance Sheet Date, 
and (ii) to the extent consistent with such principles, the accounting 
practice of HBOC and the Borrower reflected in their financial statements for 
the year ended on the Balance Sheet Date, and (b) when used in general, other 
than as provided above, means principles that are (i) consistent with the 
principles promulgated or adopted by the Financial Accounting Standards Board 
and its predecessors, as in effect from time to time, and (ii) consistently 
applied with past financial statements of HBOC and the Borrower adopting the 
same principles, provided that in each case referred to in this definition of 
"generally accepted accounting principles" a certified public accountant 
would, insofar as the use of such accounting principles is pertinent, be in a 
position to deliver an unqualified opinion (other than a qualification 
regarding changes in generally accepted accounting principles) as to 
financial statements in which such principles have been properly applied.

     Guaranteed Pension Plan.  Any employee pension benefit plan within the 
meaning of Section 3(2) of ERISA maintained or contributed to by HBOC, the 
Borrower or any ERISA Affiliate the benefits of which are guaranteed on 
termination in full or in part by the PBGC pursuant to Title IV of ERISA, 
other than a Multiemployer Plan.

     Guaranty.  The Amended and Restated Guaranty, dated or to be dated on or 
prior to the Closing Date, made by HBOC in favor of the Banks and the Agent 
pursuant to which HBOC guaranties to the Banks and the Agent the payment and 
performance of the Obligations and in form and substance satisfactory to the 
Banks and the Agent.

     Hazardous Substances.  See Section 7.17(b).

     Indebtedness.  As to any Person and whether recourse is secured by or is 
otherwise available against all or only a portion of the assets of such 
Person and whether or not contingent, but without duplication:

          (a)  every obligation of such Person for money borrowed;


                                 7

<PAGE>

          (b)  every obligation of such Person evidenced by bonds, 
     debentures, notes or other similar instruments, including obligations 
     incurred in connection with the acquisition of property, assets or 
     businesses;

          (c)  every reimbursement obligation of such Person with respect to 
     letters of credit, bankers' acceptances or similar facilities issued for 
     the account of such Person;

          (d)  every obligation of such Person issued or assumed as the 
     deferred purchase price of property or services (including securities 
     repurchase agreements but excluding trade accounts payable or accrued 
     liabilities arising in the ordinary course of business which are not 
     overdue or which are being contested in good faith);

          (e)  every obligation of such Person under any Capitalized Lease;

          (f)  every obligation of such Person under any lease (a "Synthetic 
     Lease") treated as an operating lease under generally accepted 
     accounting principles and as a loan or financing for United States 
     income tax purposes;

          (g)  all sales by such Person of (i) accounts or general 
     intangibles for money due or to become due, (ii) chattel paper, 
     instruments or documents creating or evidencing a right to payment of 
     money or (iii) other receivables (collectively, the "Receivables"), 
     whether pursuant to a purchase facility or otherwise, other than sales 
     of Receivables to HBOC Capital or sales in connection with the 
     disposition of the business operations of such Person relating thereto 
     or a disposition of defaulted receivables for collection and not as a 
     financing arrangement, and together with any obligation of such Person 
     to pay any discount, interest, fees, indemnities, penalties, recourse, 
     expenses or other amounts in connection therewith;

          (h)  every obligation of such Person (an "Equity Related Purchase 
     Obligation") to purchase, redeem, retire or otherwise acquire for value 
     any shares of capital stock of any class issued by such Person, any 
     warrants, options or other rights to acquire any such shares, or any 
     rights measured by the value of such shares, warrants, options or other 
     rights;

          (i)  every obligation of such Person under any forward contract, 
     futures contract, swap, option or other financing agreement or 
     arrangement (including, without limitation, caps, floors, collars and 
     similar agreements), the value of which is dependent upon interest 
     rates, currency exchange rates, commodities or other indices;

          (j)  every obligation in respect of Indebtedness of any other 
     entity (including any partnership in which such Person is a general 
     partner) to the extent that such Person is liable therefor as a result 
     of such Person's ownership interest in or other relationship with such 
     entity, except to the extent that the terms of such Indebtedness provide 
     that such Person is not liable therefor and such terms are enforceable 
     under applicable law; and 

                                     8

<PAGE>

          (k)  every obligation, contingent or otherwise, of such Person 
     guaranteeing, or having the economic effect of guarantying or otherwise 
     acting as surety for, any obligation of a type described in any of 
     clauses (a) through (j) other than sales of Receivables to or the 
     assumption of any credit risk on third party leases through HBOC Capital 
     (the "Primary Obligation") of another Person (the "Primary Obligor"), in 
     any manner, whether directly or indirectly, and including, without 
     limitation, any obligation of such Person (i) to purchase or pay (or 
     advance or supply funds for the purchase of) any security for the 
     payment of such Primary Obligation, (ii) to purchase property, 
     securities or services for the purpose of assuring the payment of such 
     Primary Obligation, or (iii) to maintain working capital, equity capital 
     or other financial statement condition or liquidity of the Primary 
     Obligor so as to enable the Primary Obligor to pay such Primary 
     Obligation.

The "amount" or "principal amount" of any Indebtedness at any time of 
determination represented by (v) any Indebtedness, issued at a price that is 
less than the principal amount at maturity thereof, shall be the amount of 
the liability in respect in respect thereof determined in accordance with 
generally accepted accounting principles, (w) any Capitalized Lease shall be 
the principal component of the aggregate of the rental obligations under such 
Capitalized Lease payable over the term thereof that is not subject to 
termination by the lessee, (x) any sale of receivables shall be the amount of 
unrecovered capital or principal investment of the purchaser (other than the 
Borrower or any of its wholly-owned Subsidiaries) thereof, excluding amounts 
representative of yield or interest earned on such investment, (y) any 
Synthetic lease shall be the stipulated loss value, termination value or 
other equivalent amount and (z) any equity related purchase obligation shall 
be the maximum fixed redemption or purchase price thereof inclusive of any 
accrued and unpaid dividends to be comprised in such redemption or purchase 
price.

     Interest Payment Date.  (a) As to any Base Rate Loan, the last day of 
each calendar month which includes the Drawdown Date thereof; and (b) as to 
any LIBOR Rate Loan in respect of which the Interest Period is (A) three (3) 
months or less, the last day of such Interest Period and (B) more than three 
(3) months, the date that is three (3) months from the first day of each 
Interest Period and, in addition, the last day of such Interest Period.

     Interest Period.  With respect to each Revolving Credit Loan, (a) 
initially, the period commencing on the Drawdown Date of such Loan and ending 
on the last day of one of the periods set forth below, as selected by the 
Borrower in a Loan Request (i) for any Base Rate Loan, the last day of the 
calendar month; and (ii) for any LIBOR Rate Loan, 1, 2, 3, 6, 9 or 12 months; 
and (b) thereafter, each period commencing on the last day of the next 
preceding Interest Period applicable to such Revolving Credit Loan and ending 
on the last day of one of the periods set forth above, as selected by the 
Borrower in a Conversion Request; provided that all of the foregoing 
provisions relating to Interest Periods are subject to the following:

                                    9

<PAGE>

          (a)  if any Interest Period with respect to a LIBOR Rate Loan would 
     otherwise end on a day that is not a LIBOR Business Day, that Interest 
     Period shall be extended to the next succeeding LIBOR Business Day 
     unless the result of such extension would be to carry such Interest 
     Period into another calendar month, in which event such Interest Period 
     shall end on the immediately preceding LIBOR Business Day;

     
          (b)  if any Interest Period with respect to a Base Rate Loan would 
     end on a day that is not a Business Day, that Interest Period shall end 
     on the next succeeding Business Day;

          (c)  if the Borrower shall fail to give notice as provided in 
     Section  2.7, the Borrower shall be deemed to have requested a 
     conversion of the  affected LIBOR Rate Loan to a Base Rate Loan and the 
     continuance of all  Base Rate Loans as Base Rate Loans on the last day 
     of the then current  Interest Period with respect thereto;

          (d)  any Interest Period relating to any LIBOR Rate Loan that 
     begins on the last LIBOR Business Day of a calendar month (or on a day 
     for which there is no numerically corresponding day in the calendar 
     month at the end of such Interest Period) shall end on the last LIBOR 
     Business Day of a calendar month; and

          (e)  any Interest Period relating to any LIBOR Rate Loan that would 
     otherwise extend beyond the Revolving Credit Loan Maturity Date and 
     shall end on the Revolving Credit Loan Maturity Date.
               
     Investments.  All expenditures made and all liabilities incurred 
(contingently or otherwise) for the acquisition of stock or Indebtedness of, 
or for loans, advances, capital contributions or transfers of property to, or 
in respect of any guaranties (or other commitments as described under 
Indebtedness), or obligations of, any Person.  In determining the aggregate 
amount of Investments outstanding at any particular time: (a) the amount of 
any Investment represented by a guaranty shall be taken at not less than the 
principal amount of the obligations guaranteed and still outstanding; (b) 
there shall be included as an Investment all interest accrued with respect to 
Indebtedness constituting an Investment unless and until such interest is 
paid; (c) there shall be deducted in respect of each such Investment any 
amount received as a return of capital (but only by repurchase, redemption, 
retirement, repayment, liquidating dividend or liquidating distribution); (d) 
there shall not be deducted in respect of any Investment any amounts received 
as earnings on such Investment, whether as dividends, interest or otherwise, 
except that accrued interest included as provided in the foregoing clause (b) 
may be deducted when paid; and (e) there shall not be deducted from the 
aggregate amount of Investments any decrease in the value thereof.

     Letters of Credit.  See Section 4.1.1.


                                  10

<PAGE>

     Letter of Credit Application.  See Section 4.1.1.

     Letter of Credit Participation.  See Section 4.1.4.

     Leverage Ratio.  As at any date of determination, the ratio of (a) Total 
Funded Debt of HBOC and its Subsidiaries outstanding on such date to (b) 
Consolidated Operating Cash Flow for the period of the most recent four 
consecutive fiscal quarters (treated as a single accounting period) ended on 
such date.

     LIBOR Business Day.  Any day on which commercial banks are open for 
international business (including dealings in Dollar deposits) in London or 
such other eurodollar interbank market as may be selected by the Agent in its 
sole discretion acting in good faith.

     LIBOR Lending Office.  Initially, the office of each Bank designated as 
such in Schedule 1 hereto; thereafter, such other office of such Bank, if 
any, that shall be making or maintaining LIBOR Rate Loans.

     LIBOR Rate.  For any Interest Period with respect to a LIBOR Rate Loan, 
the rate of interest equal to (a) the rate determined by the Agent at which 
Dollar deposits for such Interest Period are offered based on information 
presented on Telerate Page 3750 as of 11:00 a.m. London time on the second 
LIBOR Business Day prior to the first day of such Interest Period, divided by 
(b) a number equal to 1.00 minus the Eurocurrency Reserve Rate, if applicable.

     LIBOR Rate Loans.  Revolving Credit Loans bearing interest calculated by 
reference to the LIBOR Rate.

     Loan Documents.  This Credit Agreement, the Revolving Credit Notes, the 
Letter of Credit Applications, and the Letters of Credit.

     Loan Request.  See Section 2.6.

     Majority Banks.  As of any date, the Banks holding at least sixty-six 
and two thirds percent (66 2/3%) of the outstanding principal amount of the 
Revolving Credit Notes and Letters of Credit on such date prior to giving 
effect to any repayment of such Revolving Credit Notes from any collection 
actions or rights of setoff; and if no such principal is outstanding, the 
Banks whose aggregate Commitments constitutes at least sixty-six and two 
thirds percent (66 2/3%) of the Total Commitment.

     Maximum Drawing Amount.  The maximum aggregate amount that any 
beneficiary may at any time draw under the outstanding Letters of Credit, as 
such amount may be reduced from time to time pursuant to the terms of the 
Letters of Credit.

                                 11

<PAGE>

     Multiemployer Plan.  Any multiemployer plan within the meaning of 
Section 3(37) of ERISA maintained or contributed to by HBOC, the Borrower or 
any ERISA Affiliate.

     Obligations.  All indebtedness, obligations and liabilities of any of 
HBOC, the Borrower and their Subsidiaries to any of the Banks and the Agent, 
individually or collectively, existing on the date of this Credit Agreement 
or arising thereafter, direct or indirect, joint or several, absolute or 
contingent, matured or unmatured, liquidated or unliquidated, secured or 
unsecured, arising by contract, operation of law or otherwise, arising or 
incurred under this Credit Agreement or any of the other Loan Documents or in 
respect of any of the Revolving Credit Loans made or Reimbursement 
Obligations incurred or any of the Revolving Credit Notes, Letter of Credit 
Application, Letters of Credit or other instruments at any time evidencing 
any thereof.

     outstanding.  With respect to the Revolving Credit Loans, the aggregate 
unpaid principal thereof as of any date of determination.

     PBGC.  The Pension Benefit Guaranty Corporation created by Section 4002 
of ERISA and any successor entity or entities having similar responsibilities.

     Permitted Liens.  Liens, security interests and other encumbrances 
permitted by Section 9.2.

     Person.  Any individual, corporation, partnership, trust, unincorporated 
association, business, or other legal entity, and any government or any 
governmental agency or political subdivision thereof.

     Real Estate.  All real property at any time owned or leased (as lessee 
or sublessee) by the Borrower or any of its Subsidiaries.

     Record.  The grid attached to a Revolving Credit Note, or the 
continuation of such grid, or any other similar record, including computer 
records, maintained by any Bank with respect to any Revolving Credit Loan 
referred to in such Revolving Credit Note.

     Reference Bank.  BankBoston, N.A.

     Reimbursement Obligation.  The Borrower's obligation to reimburse the 
Agent and the Banks on account of any drawing under the Letters of Credit as 
provided in Section 4.2.

     Revolving Credit Loan Maturity Date.  June 30, 1999.

     Revolving Credit Loans.  Revolving credit loans made or to be 
made by the Banks to the Borrower pursuant to Section 2.

     Revolving Credit Notes.  See Section 2.4.


                                       12

<PAGE>

     Subsidiary.  Any corporation, association, trust, or other business 
entity of which the designated parent shall at any time own directly or 
indirectly through a Subsidiary or Subsidiaries at least a majority (by 
number of votes) of the outstanding Voting Stock.

     Synthetic Lease.  See clause (f) of the definition of Indebtedness.

     Total Commitment.  The sum of the Commitments, as in effect from time to 
time.

     Total Funded Debt.  As of any date of determination, the sum of (a) 
Funded Debt, plus (b) Capitalized Lease and Synthetic Lease obligations of 
HBOC and its Subsidiaries, plus (c) all other liabilities of HBOC and its 
Subsidiaries which bear interest (other than liabilities consisting of 
operating leases), including but not limited to long-term liabilities.

     Type.  As to any Revolving Credit Loan, its nature as a Base Rate Loan 
or a LIBOR Rate Loan.

     Uniform Customs.  With respect to any Letter of Credit, the Uniform 
Customs and Practice for Documentary Credits (1993 Revision), International 
Chamber of Commerce Publication No. 500 or any successor version thereto 
adopted by the Agent in the ordinary course of its business as a letter of 
credit issuer and in effect at the time of issuance of such Letter of Credit.

     Unpaid Reimbursement Obligation.  Any Reimbursement Obligation for which 
the Borrower does not reimburse the Agent and the Banks on the date specified 
in, and in accordance with, Section 4.2.

     Voting Stock.  Stock or similar interests, of any class or classes 
(however designated), the holders of which are at the time entitled, as such 
holders, to vote for the election of a majority of the directors (or persons 
performing similar functions) of the corporation, association, trust or other 
business entity involved, whether or not the right so to vote exists by 
reason of the happening of a contingency.

      1.2  Rules of Interpretation.  

           (a)  A reference to any document or agreement shall include 
      such document or agreement as amended, modified or supplemented 
      from time to time in accordance with its terms and the terms of 
      this Credit Agreement.
               
          (b)  The singular includes the plural and the plural includes the 
      singular.

          (c)  A reference to any law includes any amendment or modification 
     to such law.


                                     13

<PAGE>

          (d)  A reference to any Person includes its permitted successors and 
     permitted assigns.

          (e)  Accounting terms not otherwise defined herein have the meanings 
     assigned to them by generally accepted accounting principles applied on a 
     consistent basis by the accounting entity to which they refer.

          (f)  The words "include", "includes" and "including" are not limiting.

          (g)  All terms not specifically defined herein or by generally 
     accepted accounting principles, which terms are defined in the Uniform 
     Commercial Code as in effect in the Commonwealth of Massachusetts, have 
     the  meanings assigned to them therein, with the term "instrument" being 
     that defined under Article 9 of the Uniform Commercial Code.

          (h)  Reference to a particular "Section " refers to that section of 
     this Credit Agreement unless otherwise indicated.

          (i)  The words "herein", "hereof", "hereunder" and words of like 
     import shall refer to this Credit Agreement as a whole and not to any 
     particular section or subdivision of this Credit Agreement.

     2.     THE REVOLVING CREDIT FACILITY

     2.1  Commitment to Lend. Subject to the terms and conditions set forth 
in this Credit Agreement, each of the Banks severally agrees to lend to the 
Borrower and the Borrower may borrow, repay and reborrow from time to time 
between the Closing Date and the Revolving Credit Loan Maturity Date, upon 
notice by the Borrower to the Agent given in accordance with Section 2.6, 
such sums as may be requested by the Borrower up to a maximum aggregate 
amount outstanding (after giving effect to all amounts requested) at any one 
time equal to such Bank's Commitment, provided that the sum of the 
outstanding amount of the Revolving Credit Loans (after giving effect to all 
amounts requested) shall not at any time exceed the Total Commitment.  The 
Revolving Credit Loans shall be made pro rata in accordance with each Bank's 
Commitment Percentage.  Each request for a Revolving Credit Loan hereunder 
shall constitute a representation and warranty by the Borrower that the 
conditions set forth in Section 11 and Section 12, in the case of the initial 
Revolving Credit Loans to be made on the Closing Date, and Section 12, in the 
case of all other Revolving Credit Loans, have been satisfied on the date of 
such request.

     2.2  Commitment Fee.     The Borrower agrees to pay to the Agent for the 
accounts of the Banks in accordance with their respective Commitment 
Percentages a commitment fee calculated at the rate of one quarter of one 
percent (1/4%) per annum on the average daily amount during each calendar 
quarter or portion thereof from the Closing Date to the Revolving Credit Loan 
Maturity Date by which the Total Commitment minus the sum of the Maximum 
Drawing Amount and all Unpaid Reimbursement Obligations exceeds the 
outstanding amount of Revolving

                                14




<PAGE>
Credit Loans during such calendar quarter.  The commitment fee shall be 
payable quarterly in arrears on the first day of each calendar quarter for 
the immediately preceding calendar quarter commencing on the first such date 
following the date hereof, with a final payment on the Revolving Credit 
Maturity Date or any earlier date on which the Commitments shall terminate.

     2.3 Reduction of Total Commitment. The Borrower shall have the right at 
any time and from time to time upon five (5) Business Days prior written 
notice to the Agent to reduce by $100,000 or an integral multiple thereof or 
terminate entirely the Total Commitment, whereupon the Commitments of the 
Banks shall be reduced pro rata in accordance with their respective 
Commitment Percentages of the amount specified in such notice or, as the case 
may be, terminated.  Promptly after receiving any notice of the Borrower 
delivered pursuant to this Section 2.3, the Agent will notify the Banks of 
the substance thereof.  Upon the effective date of any such reduction or 
termination, the Borrower shall pay to the Agent for the respective accounts 
of the Banks the full amount of any commitment fee then accrued on the amount 
of the reduction. No reduction or termination of the Commitments may be 
reinstated.

     2.4 The Revolving Credit Notes. The Revolving Credit Loans shall be 
evidenced by separate amended and restated promissory notes of the Borrower 
in substantially the form of Exhibit A hereto (each a "Revolving Credit 
Note"), dated as of the Closing Date and completed with appropriate 
insertions.  One Revolving Credit Note shall be payable to the order of each 
Bank in a principal amount equal to such Bank's Commitment or, if less, the 
outstanding amount of all Revolving Credit Loans made by such Bank, plus 
interest accrued thereon, as set forth below.  The Borrower irrevocably 
authorizes each Bank to make or cause to be made, at or about the time of the 
Drawdown Date of any Revolving Credit Loan or at the time of receipt of any 
payment of principal on such Bank's Revolving Credit Note, an appropriate 
notation on such Bank's Record reflecting the making of such Revolving Credit 
Loan or (as the case may be) the receipt of such payment.  The outstanding 
amount of the Revolving Credit Loans set forth on such Bank's Record shall be 
prima facie evidence of the principal amount thereof owing and unpaid to such 
Bank, but the failure to record, or any error in so recording, any such 
amount on such Bank's Record shall not limit or otherwise affect the 
obligations of the Borrower hereunder or under any Revolving Credit Note to 
make payments of principal of or interest on any Revolving Credit Note when 
due.

     2.5 Interest on Revolving Credit Loans. Except as otherwise provided in 
Section 5.10,

          (a) Each Base Rate Loan shall bear interest for the period 
     commencing with the Drawdown Date thereof and ending on the last day of 
     the Interest Period with respect thereto at the Base Rate.

          (b) Each LIBOR Rate Loan shall bear interest for the period 
     commencing with the Drawdown Date thereof and ending on the last day of 
     the Interest Period with respect thereto at the rate of one half of one 
     

                                      15

<PAGE>

     percent (1/2%) per annum above the LIBOR Rate determined for such 
     Interest Period.

          (c) The Borrower promises to pay interest on each Revolving Credit 
     Loan in arrears on each Interest Payment Date with respect thereto.

     2.6 Requests for Revolving Credit Loans. The Borrower shall give to the 
Agent telephonic notice (or, at the Borrower's election, written notice in 
the form of Exhibit B hereto) of each Revolving Credit Loan requested 
hereunder (a "Loan Request") no less than (a) 2:00 p.m. (Boston time) on the 
proposed Drawdown Date of any Base Rate Loan and (b) two (2) LIBOR Business 
Days prior to the proposed Drawdown Date of any LIBOR Rate Loan.  Each such 
notice shall specify (i) the principal amount of the Revolving Credit Loan 
requested, (ii) the proposed Drawdown Date of such Revolving Credit Loan, 
(iii) the Interest Period for such Revolving Credit Loan and (iv) the Type of 
such Revolving Credit Loan.  Promptly upon receipt of any such notice, the 
Agent shall notify each of the Banks thereof. Each Loan Request shall be 
irrevocable and binding on the Borrower and shall obligate the Borrower to 
accept the Revolving Credit Loan requested from the Banks on the proposed 
Drawdown Date.  Each Loan Request shall be in a minimum aggregate amount of 
$100,000 or a whole multiple of $50,000 in excess thereof, or if the 
availability of the Revolving Credit Loans is less than $100,000, such lesser 
amount.

     2.7  Conversion Options.

          2.7.1 Conversion to Different Type of Revolving Credit Loan.  The 
     Borrower may elect from time to time to convert any outstanding 
     Revolving Credit Loan to a Revolving Credit Loan of another Type, provided 
     that (a) with respect to any such conversion of a Revolving Credit Loan to 
     a Base Rate Loan, the Borrower shall give the Agent by 11:00 a.m. (Boston 
     time) on the effective date thereof prior written notice of such election;
     (b) with respect to any such conversion of a Revolving Credit Loan to a 
     LIBOR Rate Loan, the Borrower shall give the Agent at least two (2) LIBOR 
     Business Days prior written notice of such election; (c) with respect to 
     any such conversion of a LIBOR Rate Loan into a Revolving Credit Loan of 
     another Type, such conversion shall only be made on the last day of the 
     Interest Period with respect thereto and (d) no Revolving Credit Loan may 
     be converted into a LIBOR Rate Loan when any Default or Event of Default 
     has occurred and is continuing.  On the date on which such conversion is 
     being made each Bank shall take such action as is necessary to transfer 
     its Commitment Percentage of such Revolving Credit Loans to its Domestic 
     Lending Office or its LIBOR Lending Office, as the case may be.  All or 
     any part of outstanding Revolving Credit Loans of any Type may be converted
     into a Revolving Credit Loan of another Type as provided herein, provided 
     that any partial conversion shall be in an aggregate principal amount of 
     $100,000 or a whole multiple of $50,000 in excess thereof.  Each Conversion
           
                                      16
<PAGE>

     Request relating to the conversion of a Revolving Credit Loan to a LIBOR 
     Rate Loan shall be irrevocable by the Borrower.

          2.7.2 Continuation of Type of Revolving Credit Loan. Any Revolving 
     Credit Loan of any Type may be continued as a Revolving Credit Loan of 
     the same Type upon the expiration of an Interest Period with respect 
     thereto by compliance by the Borrower with the notice provisions contained
     in Section 2.7.1; provided that no LIBOR Rate Loan may be continued as 
     such when any Default or Event of Default has occurred and is continuing, 
     but shall be automatically converted to a Base Rate Loan on the last day 
     of the first Interest Period relating thereto ending during the continuance
     of any Default or Event of Default of which officers of the Agent active 
     upon the Borrower's account have actual knowledge.  In the event that the
     Borrower fails to provide any such notice with respect to the continuation
     of any LIBOR Rate Loan as such, then such LIBOR Rate Loan shall be 
     automatically converted to a Base Rate Loan on the last day of the first 
     Interest Period relating thereto.  The Agent shall notify the Banks 
     promptly when any such automatic conversion contemplated by this Section 
     2.7 is scheduled to occur.

          2.7.3 LIBOR Rate Loans. Any conversion to or from LIBOR Rate Loans 
     shall be in such amounts and be made pursuant to such elections so that, 
     after giving effect thereto, (a) the aggregate principal amount of all 
     LIBOR Rate Loans having the same Interest Period shall not be less than 
     $100,000 or a whole multiple of $50,000 in excess thereof and (b) there 
     shall not be at any one time more than ten (10) LIBOR Rate Loans 
     outstanding with different Interest Periods.

     2.8  Funds for Revolving Credit Loan.  

          2.8.1 Funding Procedures. Not later than 1:00 p.m. (Boston time) on 
     the proposed Drawdown Date of any Revolving Credit Loans, each of the 
     Banks will make available to the Agent, at the Agent's Head Office, in 
     immediately available funds, the amount of such Bank's Commitment 
     Percentage of the amount of the requested Revolving Credit Loans.  Upon
     receipt from each Bank of such amount, and upon receipt of the documents 
     required by Sections 11 and 12 and the satisfaction of the other conditions
     set forth therein, to the extent applicable, the Agent will make available
     to the Borrower the aggregate amount of such Revolving Credit Loans made 
     available to the Agent by the Banks.  The failure or refusal of any Bank 
     to make available to the Agent at the aforesaid time and place on any 
     Drawdown Date the amount of its Commitment Percentage of the requested 
     Revolving Credit Loans shall not relieve any other Bank from its several 
     obligation hereunder to make available to the Agent the amount of such 
     other Bank's Commitment Percentage of any requested Revolving Credit Loans.

                                     17
<PAGE>

          2.8.2. Advances by Agent. The Agent may, unless notified to the 
     contrary by any Bank prior to 1:00 p.m. on the Drawdown Date, assume that
     such Bank has made available to the Agent on such Drawdown Date the 
     amount of such Bank's Commitment Percentage of the Revolving Credit Loans
     to be made on such Drawdown Date, and the Agent may (but it shall not be 
     required to), in reliance upon such assumption, make available to the 
     Borrower a corresponding amount.  If any Bank makes available to the Agent
     such amount on a date after such Drawdown Date, such Bank shall pay to the
     Agent on demand an amount equal to the product of (a) the average computed
     for the period referred to in clause (c) below, of the weighted average
     interest rate paid by the Agent for federal funds acquired by the Agent 
     during each day included in such period, times (b) the amount of such 
     Bank's Commitment Percentage of such Revolving Credit Loans, times (c) a 
     fraction, the numerator of which is the number of days that elapse from 
     and including such Drawdown Date to the date on which the amount of such 
     Bank's Commitment Percentage of such Revolving Credit Loans shall become 
     immediately available to the Agent, and the denominator of which is 365.  
     A statement of the Agent submitted to such Bank with respect to any amounts
     owing under this paragraph shall be prima facie evidence of the amount due
     and owing to the Agent by such Bank.  If the amount of such Bank's 
     Commitment Percentage of such Revolving Credit Loans is not made available
     to the Agent by such Bank within three (3) Business Days following such 
     Drawdown Date, the Agent shall be entitled to recover such amount from the
     Borrower on demand, with interest thereon at the rate per annum applicable
     to the Revolving Credit Loans made on such Drawdown Date, provided, that 
     such payment shall be without prejudice to any right the Borrower may have
     against such non-funding Bank.

     3. REPAYMENT OF THE REVOLVING CREDIT LOANS.

     3.1. Maturity. The Borrower promises to pay on the Revolving Credit Loan 
Maturity Date, and there shall become absolutely due and payable on the 
Revolving Credit Loan Maturity Date, all of the Revolving Credit Loans 
outstanding on such date, together with any and all accrued and unpaid 
interest thereon.

     3.2. Mandatory Repayments of Revolving Credit Loans. If at any time the 
outstanding amount of the Revolving Credit Loans, the Maximum Drawing Amount 
and all Unpaid Reimbursement Obligations exceeds the Total Commitment, then 
the Borrower shall immediately pay the amount of such excess to the Agent for 
the respective accounts of the Banks for application: first, to any Unpaid 
Reimbursement Obligations; second, to the Revolving Credit Loans; and third, 
to provide to the Agent cash collateral for Reimbursement Obligations as 
contemplated by Section 4.2(b) and (c).  Each payment of any Unpaid 
Reimbursement Obligations or prepayment of Revolving Credit Loans shall be 
allocated among the Banks, in proportion, as nearly as practicable, to each 
Reimbursement Obligation or (as the case may be) the respective unpaid 
principal amount of each Bank's Revolving Credit Note, with adjustments to 

                                      18
<PAGE>

the extent practicable to equalize any prior payments or repayments not 
exactly in proportion.                

     3.3. Optional Repayments of Revolving Credit Loans. The Borrower 
shall have the right, at its election, to repay the outstanding amount of the 
Revolving Credit Loans, as a whole or in part, at any time without penalty or 
premium, provided that any full or partial prepayment of the outstanding 
amount of any LIBOR Rate Loans pursuant to this Section 3.3 may be made only 
on the last day of the Interest Period relating thereto or, if not made on 
such date, shall be subject to the provisions of Section 5.9(c) hereof.  The 
Borrower shall give the Agent, no later than 10:00 a.m., Boston time, at 
least one (1) Business Day prior written notice of any proposed prepayment 
pursuant to this Section 3.3 of Base Rate Loans, and two (2) LIBOR Business 
Days notice of any proposed prepayment pursuant to this Section 3.3 of LIBOR 
Rate Loans, in each case specifying the proposed date of prepayment of 
Revolving Credit Loans and the principal amount to be prepaid.  Each such 
partial prepayment of the Revolving Credit Loans shall be in an integral 
multiple of $100,000, shall be accompanied by the payment of accrued interest 
on the principal prepaid to the date of prepayment and shall be applied, in 
the absence of instruction by the Borrower, first to the principal of Base 
Rate Loans and then to the principal of LIBOR Rate Loans, at the Agent's 
option.  Each partial prepayment shall be allocated among the Banks, in 
proportion, as nearly as practicable, to the respective unpaid principal 
amount of each Bank's Revolving Credit Note, with adjustments to the extent 
practicable to equalize any prior repayments not exactly in proportion.       
         

     4. LETTERS OF CREDIT.

     4.1. Letter of Credit Commitments.    
                             
          4.1.1 Commitment to Issue Letters of Credit. Subject to the terms and
     conditions hereof and the execution and delivery by the Borrower of a 
     letter of credit application on the Agent's customary form (a "Letter of 
     Credit Application"), the Agent on behalf of the Banks and in reliance 
     upon the agreement of the Banks set forth in Section 4.1.4 and upon the 
     representations and warranties of the Borrower contained herein, agrees, 
     in its individual capacity, to issue, extend and renew for the account of 
     the Borrower one or more standby or documentary letters of credit 
     (individually, a "Letter of Credit"), in such form as may be requested 
     from time to time by the Borrower and agreed to by the Agent; provided, 
     however, that, after giving effect to such request, (a) the sum of the 
     Maximum Drawing Amount and all Unpaid Reimbursement Obligations shall not 
     exceed $25,000,000 at any one time, and (b) the sum of (i) the Maximum 
     Drawing Amount on all Letters of Credit, (ii) all Unpaid Reimbursement 
     Obligations and (iii) the amount of all Revolving Credit Loans outstanding
     shall not exceed the Total Commitment.                   

          4.1.2. Letter of Credit Applications. Each Letter of Credit 
     Application shall be completed to the satisfaction of the Agent. In the 
     event that any provision of any Letter of Credit Application shall be 

                                      19
<PAGE>
     inconsistent with any provision of this Credit Agreement, then the 
     provisions of this Credit Agreement shall, to the extent of any such 
     inconsistency, govern.

          4.1.3  Terms of Letters of Credit. Each Letters of Credit issued,
     extended or renewed hereunder shall, among other things, (a) provide 
     for the payment of sight drafts for honor thereunder when presented in 
     accordance with the terms thereof and when accompanied by the documents 
     described therein, and (b) have an expiry date no later than the date which
     is fourteen (14) days (or, if the Letter of Credit is confirmed by a 
     confirming bank or otherwise provides for one or more nominated persons, 
     forty-five (45) days) prior to the Revolving Credit Loan Maturity Date.  
     Each Letter of Credit so issued, extended or renewed shall be subject to 
     the Uniform Customs.                                    

          4.1.4 Reimbursement Obligations of Banks. Each Bank severally agrees 
     that it shall be absolutely liable, without regard to the occurrence of 
     any Default or Event of Default or any other condition precedent 
     whatsoever, to the extent of such Bank's Commitment Percentage, to 
     reimburse the Agent on demand for the amount of each draft paid by the 
     Agent under each Letter of Credit to the extent that such amount is not 
     reimbursed by the Borrower pursuant to Section 4.2 (such agreement for a 
     Bank being called herein the "Letter of Credit Participation" of such 
     Bank).

          4.1.5 Participations of Banks. Each such payment made by a Bank shall
     be treated as the purchase by such Bank of a participating interest in 
     the Borrower's Reimbursement Obligation under Section 4.2 in an amount 
     equal to such payment.  Each Bank shall share in accordance with its 
     participating interest in any interest which accrues pursuant to Section 
     5.2.

     4.2. Reimbursement Obligation of the Borrower. In order to induce the 
Agent to issue, extend and renew each Letter of Credit and the Banks to 
participate therein, the Borrower hereby agrees to reimburse or pay to the 
Agent, for the account of the Agent or (as the case may be) the Banks, with 
respect to the Letter of Credit issued, extended or renewed by the Agent 
hereunder,                     

          (a) except as otherwise expressly provided in Section 4.2(b) and (c),
     on each date that any draft presented under such Letter of Credit is 
     honored by the Agent, or the Agent otherwise makes a payment with respect 
     thereto, (i) the amount paid by the Agent under or with respect to such
     Letter of Credit, and (ii) the amount of any taxes, fees, charges or other
     costs and expenses whatsoever incurred by the Agent or any Bank in 
     connection with any payment made by the Agent or any Bank under, or with
     respect to, such Letter of Credit,
                     
          (b) upon the reduction (but not termination) of the Total Commitment
     to an amount less than the Maximum Drawing Amount, an amount equal to such
     difference, which amount shall be held by the Agent for the benefit of the

                                      20
<PAGE>

     Banks and the Agent as cash collateral for all Reimbursement Obligations;
     and                     

          (c) upon the termination of the Total Commitment, or the acceleration
     of the Reimbursement Obligations with respect to the Letter of Credit in
     accordance with Section 13, an amount equal to the then Maximum Drawing
     Amount on the Letter of Credit, which amount shall be held by the Agent for
     the benefit of the Banks and the Agent as cash collateral for all 
     Reimbursement Obligations. 

Each such payment shall be made to the Agent at the Agent's Head Office in 
immediately available funds.  Interest on any and all amounts remaining unpaid 
by the Borrower under this Section 4.2 at any time from the date such amounts 
become due and payable (whether as stated in this Section 4.2, by acceleration 
or otherwise) until payment in full (whether before or after judgment) shall be 
payable to the Agent on demand at the rate specified in Section 5.10 for overdue
principal on the Revolving Credit Loans.
     

     4.3. Letter of Credit Payments. If any draft shall be presented or other 
demand for payment shall be made under the Letter of Credit, the Agent shall 
notify the Borrower of the date and amount of the draft presented or demand 
for payment and of the date and time when it expects to pay such draft or 
honor such demand for payment.  If the Borrower fails to reimburse the Agent 
as provided in Section 4.2 on or before the date that such draft is paid or 
other payment is made by the Agent, the Agent may at any time thereafter 
notify the Banks of the amount of any such Unpaid Reimbursement Obligation.  
No later than 3:00 p.m. (Boston time) on the Business Day next following the 
receipt of such notice, each Bank shall make available to the Agent, at the 
Agent's Head Office, in immediately available funds, such Bank's Commitment 
Percentage of such Unpaid Reimbursement Obligation, together with an amount 
equal to the product of (a) the average, computed for the period referred to 
in clause (c) below, of the weighted average interest rate paid by the Agent 
for federal funds acquired by the Agent during each day included in such 
period, times (b) the amount equal to such Bank's Commitment Percentage of 
such Unpaid Reimbursement Obligation, times (c) a fraction, the numerator of 
which is the number of days that elapse from and including the date the Agent 
noticed the Banks that it paid the draft presented for honor or otherwise 
made payment to the date on which such Bank's Commitment Percentage of such 
Unpaid Reimbursement obligation shall become immediately available to the 
Agent, and the denominator of which is 365.  The responsibility of the Agent 
to the Borrower and the Banks shall be only to examine the documents 
(including each draft) delivered under each Letter of Credit in connection 
with such presentment with reasonable care and determine that they appear on 
their face to be in compliance with the terms and conditions of such Letter 
of Credit.                               

     4.4. Obligations Absolute. The Borrower's obligations under this Section 
4 shall be absolute and unconditional under any and all circumstances and 
irrespective of the occurrence of any Default or Event 

                                      21
<PAGE>

of Default or any condition precedent whatsoever or any setoff, counterclaim 
or defense to payment which the Borrower may have or have had against the 
Agent, any Bank or any beneficiary of a Letter of Credit.  The Borrower 
further agrees with the Agent and the Banks that  the Agent and the Banks 
shall not be responsible for, and the Borrower's Reimbursement Obligations 
under Section 4.2 shall not be affected by, among other things, the validity 
or genuineness of documents or of any endorsements thereon, even if such 
documents should in fact prove to be in any or all respects invalid, 
fraudulent or forged, or any dispute between or among the Borrower, the 
beneficiary of any Letter of Credit or any financing institution or other 
party to which any Letter of Credit may be transferred or any claims or 
defenses whatsoever of the Borrower against the beneficiary of any Letter of 
Credit or any such transferee.  The Agent and the Banks shall not be liable 
for any error, omission, interruption or delay in transmission, dispatch or 
delivery of any message or advice, however transmitted, in connection with 
any Letter of Credit.  The Borrower agrees that any action taken or omitted 
by the Agent or any Bank under or in connection with each Letter of Credit 
and the related drafts and documents, if done in good faith, shall be binding 
upon the Borrower and shall not result in any liability on the part of the 
Agent or any Bank to the Borrower.

     4.5. Reliance by Issuer. To the extent not inconsistent with Section 
4.4, the Agent shall be entitled to rely, and shall be fully protected in 
relying upon, any Letter of Credit, draft, writing, resolution, notice, 
consent, certificate, affidavit, letter, cablegram, telegram, telecopy, telex 
or teletype message, statement, order or other document believed by it to be 
genuine and correct and to have been signed, sent or made by the proper 
Person or Persons and upon advice and statements of legal counsel, 
independent accountants and other experts selected by the Agent. The Agent 
shall be fully justified in failing or refusing to take any action under this 
Agreement unless it shall first have received such advice or concurrence of 
the Majority Banks as it reasonably deems appropriate or it shall first be 
indemnified to its reasonable satisfaction by the Banks against any and all 
liability and expense which may be incurred by it by reason of taking or 
continuing to take any such action. The Agent shall in all cases be fully 
protected in acting, or in refraining from acting, under this Agreement in 
accordance with a request of the Majority Banks, and such request and any 
action taken or failure to act pursuant thereto shall be binding upon the 
Banks and all future holders of the Revolving Credit Notes or of a Letter of 
Credit Participation.

     4.6. Letter of Credit Fee. The Borrower shall, on the date of issuance, 
extension or renewal of any Letter of Credit and at such other time or times 
as such charges are customarily made by the Agent, pay a fee (in each case, a 
"Letter of Credit Fee") (a) in respect of each standby Letter of Credit 
issued pursuant to this Credit Agreement, equal to one-half of one percent 
(1/2%) of the face amount of such Letter of Credit plus the Agent's customary 
issuance fee (but not such issuance, amendment, negotiation or document 
examination fee) to be for the accounts of the Banks in accordance with their 
respective Commitment Percentages, and (b) in respect of each documentary 
Letter of Credit issued pursuant to this 

                                      22
<PAGE>

Credit Agreement, equal to one-quarter of one percent (1/4%) of the face 
amount of such Letter of Credit plus the Agent's customary issuance fee (but 
not such issuance, amendment, negotiation or document examination fee) to be 
for the accounts of the Banks in accordance with their respective Commitment 
Percentages.

     5. CERTAIN GENERAL PROVISIONS.      

     5.1. Fees. The Borrower agrees to pay to the Agent for the Agent's own 
account quarterly in advance, an annual Agent's fee in such amount as is 
agreed to by and among the Borrower in an Agent's fee letter dated as of the 
date hereof.                                

     5.2.  Funds for Payments.

          5.2.1. Payments to Agent. All payments of principal, interest, 
     Reimbursement Obligations, commitment fees, Letter of Credit Fees and 
     any other amounts due hereunder or under any of the other Loan Documents 
     shall be made to the Agent, for the respective accounts of the Banks and 
     the Agent, at the Agent's Head Office or at such other location in the 
     Boston, Massachusetts, area that the Agent may from time to time designate,
     in each case in immediately available funds.                               

          5.2.2. No Offset, etc. All payments by the Borrower hereunder and 
     under any of the other Loan Documents shall be made without setoff or 
     counterclaim and free and clear of and without deduction for any taxes, 
     levies, imposts, duties, charges, fees, deductions, withholdings, 
     compulsory loans, restrictions or conditions of any nature now or hereafter
     imposed or levied by any jurisdiction or any political subdivision thereof
     or taxing or other authority therein (the "Taxes") unless the Borrower is
     compelled by law to make such deduction or withholding.  If any such 
     obligation is imposed upon the Borrower with respect to any amount payable
     by it hereunder or under any of the other Loan Documents, the Borrower will
     pay to the Agent, for the account of the Banks or (as the case may be) the
     Agent, on the date on which such amount is due and payable hereunder or 
     under such other Loan Document, such additional amount in Dollars as shall
     be necessary to enable the Banks or the Agent to receive the same net 
     amount which the Banks or the Agent would have received on such due date 
     had no such obligation been imposed upon the Borrower.  The Borrower will
     deliver promptly to the Agent certificates or other valid vouchers for all
     taxes or other charges deducted from or paid with respect to payments made 
     by the Borrower hereunder or under such other Loan Document.  Each Bank 
     which is not a bank organized under the laws of the United States or any 
     state thereof agrees, as soon as practicable after a request by the 
     Borrower to do so, to file all appropriate forms and take other appropriate
     action to obtain a certificate or other appropriate document from the 
     appropriate governmental authority in the jurisdiction imposing the 
     relevant taxes, establishing that it is entitled to receive payments of 
     principal and interest under this Credit Agreement and the Revolving 
     Credit Notes without deduction and free from withholding of any Taxes 
     imposed by such jurisdiction; provided, that, if it is unable, for any 
     
                                      23
<PAGE>

     reason, to establish such exemption, or to file such forms and, in any 
     event, during such period of time as such request for exemption is pending,
     the Borrower shall nonetheless remain obligated under the terms of the 
     immediately preceding paragraph.  In the event any such Bank receives a 
     refund of any Taxes paid by the Borrower pursuant to this Section 6.2 it 
     will pay to the Borrower the amount of such refund promptly upon receipt
     thereof; provided, however, if at any time thereafter it is required to 
     return such refund, the Borrower shall promptly repay to it the amount of 
     such refund.

     5.3. Computations. All computations of interest on the Loans and of 
commitment fees, Letter of Credit Fees or other fees shall, unless otherwise 
expressly provided herein, be based on a 360-day year and paid for the actual 
number of days elapsed.  Except as otherwise provided in the definition of 
the term "Interest Period" with respect to LIBOR Rate Loans, whenever a 
payment hereunder or under any of the other Loan Documents becomes due on a 
day that is not a Business Day, the due date for such payment shall be 
extended to the next succeeding Business Day, and interest shall accrue 
during such extension.  The outstanding amount of the Loans as reflected on 
the Records from time to time shall be considered correct and binding on the 
Borrower unless within five (5) Business Days after receipt of any notice by 
the Agent or any of the Banks of such outstanding amount, the Agent or such 
Bank shall notify the Borrower to the contrary.                

     5.4. Inability to Determine LIBOR Rate. In the event, prior to the 
commencement of any Interest Period relating to any LIBOR Rate Loan, the 
Agent shall determine or be notified by the Majority Banks that adequate and 
reasonable methods do not exist for ascertaining the LIBOR Rate that would 
otherwise determine the rate of interest to be applicable to any LIBOR Rate 
Loan during any Interest Period, the Agent shall forthwith give notice of 
such determination (which shall be conclusive and binding on the Borrower and 
the Banks) to the Borrower and the Banks.  In such event (a) any Loan Request 
or Conversion Request with respect to LIBOR Rate Loans shall be automatically 
withdrawn and shall be deemed a request for Base Rate Loans, (b) each LIBOR 
Rate Loan will automatically, on the last day of the then current Interest 
Period relating thereto, become a Base Rate Loan, and (c) the obligations of 
the Banks to make LIBOR Rate Loans shall be suspended until the Agent or the 
Majority Banks determines that the circumstances giving rise to such 
suspension no longer exist, whereupon the Agent or, as the case may be, the 
Agent upon the instruction of the Majority Banks, shall so notify the 
Borrower and the Banks.                               

     5.5 Illegality. Notwithstanding any other provisions herein, if any 
present or future law, regulation, treaty or directive or in the 
interpretation or application thereof shall make it unlawful for any Bank to 
make or maintain LIBOR Rate Loans, such Bank shall forthwith give notice of 
such circumstances to the Borrower and the other Banks and thereupon (a) the 
commitment of such Bank to make LIBOR Rate Loans or convert Loans of another 
Type to LIBOR Rate Loans shall forthwith be suspended and (b) such Bank's 

                                      24
<PAGE>

Revolving Credit Loans then outstanding as LIBOR Rate Loans, if any, shall be 
converted automatically to Base Rate Loans on the last day of each Interest 
Period applicable to such LIBOR Rate Loans or within such earlier period as 
may be required by law.  Before giving any notice to the Agent pursuant to 
this Section 5.5, such Bank shall designate a different LIBOR Lending office 
if such designation will avoid the need for giving such notice and will not, 
in the sole and absolute judgment of such Bank, be otherwise materially 
disadvantageous to such Bank, which determination by such Bank shall be 
conclusive.  The Borrower hereby agrees promptly to pay the Agent for the 
account of such Bank, upon demand by such Bank, any additional amounts 
necessary to compensate such Bank for any costs incurred by such Bank in 
making any conversion in accordance with this Section 5.5, including any 
interest or fees payable by such Bank to lenders of funds obtained by it in 
order to make or maintain its LIBOR Loans hereunder.  

     5.6. Additional Costs, etc. If any present or future applicable law, 
which expression, as used herein, includes statutes, rules and regulations 
thereunder and interpretations thereof by any competent court or by any 
governmental or other regulatory body or official charged with the 
administration or the interpretation thereof and requests, directives, 
instructions and notices at any time or from time to time hereafter made upon 
or otherwise issued to any Bank or the Agent by any central bank or other 
fiscal, monetary or other authority (whether or not having the force of law), 
shall:                                    

          (a) subject any Bank or the Agent to any tax, levy, impost, duty, 
     charge, fee, deduction or withholding of any nature with respect to this 
     Credit Agreement, the other Loan Documents, any Letters of Credit, such 
     Bank's Commitment or the Loans (other than taxes based upon or measured by
     the income or profits of such Bank or the Agent), or               

          (b) materially change the basis of taxation (except for changes in 
     taxes on income or profits) of payments to any Bank of the principal of or
     the interest on any Loans or any other amounts payable to any Bank or the
     Agent under this Credit Agreement or any of the other Loan Documents, or
                               
          (c) impose or increase or render applicable (other than to the extent
     specifically provided for elsewhere in this Credit Agreement) any special
     deposit, reserve, assessment, liquidity, capital adequacy or other similar
     requirements (whether or not having the force of law) against assets held 
     by, or deposits in or for the account of, or loans by, or letters of credit
     issued by, or commitments of an office of any Bank, or

          (d) impose on any Bank or the Agent any other conditions or 
     requirements with respect to this Credit Agreement, the other Loan 
     Documents, any Letters of Credit, the Loans, such Bank's Commitment, or 
     any class of loans, letters of credit or commitments of which any of the 
     Loans or such Bank's Commitment forms a part, and the result of any of the
     foregoing is                               

                                     25
<PAGE>

               (i) to increase the cost to any Bank of making, funding, issuing,
          renewing, extending or maintaining any of the Loans or such Bank's 
          Commitment or any Letter of Credit, or                

               (ii) to reduce the amount of principal, interest, Reimbursement
          Obligation or other amount payable to such Bank or the Agent 
          hereunder on account of such Bank's Commitment, any Letter of Credit
          or any of the Revolving Credit Loans, or

               (iii) to require such Bank or the Agent to make any payment or 
          to forego any interest or Reimbursement Obligation or other sum 
          payable hereunder, the amount of which payment or foregone interest or
          Reimbursement Obligation or other sum is calculated by reference to 
          the gross amount of any sum receivable or deemed received by such Bank
          or the Agent from the Borrower hereunder, 

then, and in each such case, the Borrower will, upon demand made by such Bank 
or (as the case may be) the Agent at any time and from time to time and as 
often as the occasion therefor may arise, pay to such Bank or the Agent such 
additional amounts as will be sufficient to compensate such Bank or the Agent 
for such additional cost, reduction, payment or foregone interest or 
Reimbursement Obligation or other sum, provided, that the Borrower shall have 
no liability hereunder for amounts which were incurred or accrued prior to a 
date which is more than 180 days before the Borrower's receipt of such demand.

          (e) Each Bank will promptly notify the Borrower and the Agent of any
     event of which it has knowledge, occurring after the date hereof, which
     will entitle such Bank to compensation pursuant to this Section 5.6, and
     such Bank will designate a different Domestic Lending Office or LIBOR 
     Lending Office if such designation will avoid the need for, or 
     substantially reduce the amount of such compensation and will not, in the 
     sole and absolute judgment of such Bank, be otherwise materially 
     disadvantageous to such Bank, which determination by such Bank shall be 
     conclusive.  Each Bank shall allocate such additional cost increases among
     its customers in good faith and on an equitable basis.

     5.7. Capital Adequacy. If after the date hereof any Bank or the Agent 
determines that (a) the adoption of or change in any law, governmental rule, 
regulation, policy, guideline or directive (whether or not having the force 
of law) regarding capital requirements for banks or bank holding companies or 
any change in the interpretation or application thereof by a court or 
governmental authority with appropriate jurisdiction, or (b) compliance by 
such Bank or the Agent or any corporation controlling such Bank or the Agent 
with any law, governmental rule, regulation, policy, guideline or directive 
(whether or not having the force of law) of any such entity regarding capital 
adequacy, has the effect of reducing the return on such Bank's or the Agent's 
commitment with respect to any Loans to a level below that which such Bank or 

                                      26
<PAGE>

the Agent could have achieved but for such adoption, change or compliance 
(taking into consideration such Bank's or the Agent's then existing policies 
with respect to capital adequacy and assuming full utilization of such 
entity's capital) by any amount deemed by such Bank or (as the case may be) 
the Agent to be material, then such Bank or the Agent may notify the Borrower 
of such fact.  To the extent that the amount of such reduction in the return 
on capital is not reflected in the Base Rate, the Borrower agrees to pay such 
Bank or (as the case may be) the Agent for the amount of such reduction in 
the return on capital as and when such reduction is determined upon 
presentation by such Bank or (as the case may be) the Agent of a certificate 
in accordance with Section 5.8 hereof, provided, that the Borrower shall have 
no liability hereunder for amounts which were incurred or accrued prior to a 
date which is more than 180 days before the Borrower's receipt of such 
certificate.  Each Bank shall allocate such cost increases among its 
customers in good faith and on an equitable basis.        
                         
     5.8. Certificate. A certificate setting forth any additional amounts 
payable pursuant to Sections 5.6 or 5.7 and a reasonably detailed explanation 
of such amounts which are due and the allocation and attribution methods 
employed in connection therewith, submitted by any Bank or the Agent to the 
Borrower, shall be conclusive, absent manifest error, that such amounts are 
due and owing.                

     5.9. Indemnity. The Borrower agrees to indemnify each Bank and to 
hold each Bank harmless from and against any loss, cost or expense (including 
loss of anticipated profits) that such Bank may sustain or incur as a 
consequence of (a) default by the Borrower in payment of the principal amount 
of or any interest on any LIBOR Rate Loans as and when due and payable, 
including any such loss or expense arising from interest or fees payable by 
such Bank to lenders of funds obtained by it in order to maintain its LIBOR 
Rate Loans, (b) default by the Borrower in making a borrowing or conversion 
after the Borrower has given (or is deemed to have given) a Loan Request or a 
Conversion Request relating thereto in accordance with Section 2.6 or Section 
2.7 or (c) the making of any payment of a LIBOR Rate Loan or the making of 
any conversion of any such Revolving Credit Loan to a Base Rate Loan on a day 
that is not the last day of the applicable Interest Period with respect 
thereto, including interest or fees payable by such Bank to lenders of funds 
obtained by it in order to maintain any such Loans.                           

     5.10. Interest After Default.                      

          5.10.1. Overdue Amounts. Overdue principal and (to the extent 
     permitted by applicable law) interest on the Revolving Credit Loans and 
     all other overdue amounts payable hereunder or under any of the other 
     Loan Documents shall bear interest compounded monthly and payable on 
     demand at a rate per annum equal to three percent (3%) above the Base 
     Rate until such amount shall be paid in full (after as well as before 
     judgment).

          5.10.2. Amounts Not Overdue. During the continuance of an Event of 
     Default the principal of the Revolving Credit Loans not overdue shall,
     until such Event of Default has been cured or remedied or such Event of
     
                                      27
<PAGE>

     Default has been waived by the Majority Banks pursuant to Section 26, bear
     interest at a rate per annum equal to the greater of (a) two percent (2%)
     above the rate of interest otherwise applicable to such Revolving Credit
     Loans pursuant to Section 2.5 and (b) the rate of interest applicable to
     overdue principal pursuant to Section 5.10.1.

     6. GUARANTY. The Obligations shall be guaranteed pursuant to the terms of 
the Guaranty.                                 

     7. REPRESENTATIONS AND WARRANTIES.                 

     Each of the Borrower and HBOC represents and warrants to the Banks and the
Agent as follows:

     7.1. Corporate Authority.                                    
   
          7.1.1 Incorporation; Good Standing. Each of HBOC, the Borrower and 
     their Subsidiaries (a) is a corporation duly organized, validly existing 
     and in good standing under the laws of its state of incorporation, (b) has
     all requisite corporate power to own its property and conduct its business
     as now conducted and as presently contemplated, and (c) is in good standing
     as a foreign corporation and is duly authorized to do business in each 
     jurisdiction where such qualification is necessary except where a failure 
     to be so qualified would not have a materially adverse effect on the 
     business, assets or financial condition of HBOC, the Borrower and the 
     Subsidiaries, taken as a whole.

          7.1.2. Authorization. The execution, delivery and performance of this
     Credit Agreement and the other Loan Documents to which HBOC, the Borrower 
     or any of their Subsidiaries is or is to become a party and the 
     transactions contemplated hereby and thereby (a) are within the corporate
     authority of such Person, (b) have been duly authorized by all necessary
     corporate proceedings, (c) do not conflict with or result in any breach or
     contravention of any provision of law, statute, rule or regulation to which
     HBOC, the Borrower or any of their Subsidiaries is subject or any judgment,
     order, writ, injunction, license or permit applicable to HBOC, the Borrower
     or any of their Subsidiaries and (d) do not conflict with any provision of
     the corporate charter or bylaws of, or any material agreement or other
     instrument binding upon, HBOC, the Borrower and their Subsidiaries, taken
     as a whole.

          7.1.3. Enforceability. The execution and delivery of this Credit 
     Agreement and the other Loan Documents to which HBOC, the Borrower or any 
     of their Subsidiaries is or is to become a party will result in valid and 
     legally binding obligations of such Person enforceable against it in 
     accordance with the respective terms and provisions hereof and thereof, 
     except as enforceability is limited by bankruptcy, insolvency, 

                                      28
<PAGE>

reorganization, moratorium or other laws relating to or affecting generally
the enforcement of creditors' rights and except to the extent that 
availability of the remedy of specific performance or injunctive relief is
subject to the discretion of the court before which any proceeding therefor
may be brought.

     7.2. Governmental Approvals. The execution, delivery and performance by 
HBOC, the Borrower and any of their Subsidiaries of this Credit Agreement and 
the other Loan Documents to which HBOC, the Borrower or any of their 
Subsidiaries is or is to become a party and the transactions contemplated 
hereby and thereby do not require the approval or consent of, or filing with, 
any governmental agency or authority other than those already obtained.

     7.3. Title to Properties; Leases. Except as indicated on Schedule 7.3 
hereto, HBOC the Borrower and their Subsidiaries own all of the assets 
reflected in the consolidated balance sheet of HBOC, the Borrower and their 
Subsidiaries as at the Balance Sheet Date or acquired since that date (except 
property and assets sold or otherwise disposed of in the ordinary course of 
business since that date), subject to no rights of others, including any 
mortgages, leases, conditional sales agreements, title retention agreements, 
liens or other encumbrances except Permitted Liens.

     7.4. Financial Statements. There has been furnished to each of the Banks 
a consolidated balance sheet of HBOC, the Borrower and their Subsidiaries as 
at the Balance Sheet Date, and a consolidated statement of income of HBOC, 
the Borrower and their Subsidiaries for the fiscal year then ended, certified 
by Arthur Andersen LLP  Such balance sheet and statement of income have been 
prepared in accordance with generally accepted accounting principles and 
fairly present the financial condition of HBOC, the Borrower and their 
Subsidiaries as at the close of business on the date thereof and the results 
of operations for the fiscal year then ended. There are no contingent 
liabilities of HBOC, the Borrower or any of their Subsidiaries as of such 
date involving material amounts, know to the officers of the Borrower, which 
were not disclosed in such balance sheet and the notes related thereto.

     7.5. No Material Changes, etc. Since the Balance Sheet Date there has 
occurred no materially adverse change in the financial condition or business 
of HBOC, the Borrower and their Subsidiaries as shown on or reflected in the 
consolidated balance sheet of HBOC, the Borrower and their Subsidiaries as at 
the Balance Sheet Date, or the consolidated statement of income for the 
fiscal year then ended, other than changes in the ordinary course of business 
that have not had any materially adverse effect on the business or financial 
condition of HBOC, the Borrower or any of their Subsidiaries, taken as a 
whole.  Since the Balance Sheet Date, neither HBOC nor the Borrower has made 
any Distributions.                

     7.6  Franchises, Patents, Copyrights, etc. Each of the Borrower and 
their Subsidiaries possesses all franchises, patents, copyrights, trademarks, 
trade names, licenses and permits, and rights in respect of the foregoing, 
adequate for the conduct of its business substantially as now conducted 
without known conflict with

                                     29
<PAGE>

any rights of others.  Neither the Borrower's nor any of their Subsidiaries' 
copyrights have been federally registered with the United States Copyright 
Office.

     7.7.   Litigation.  Except as set forth in Schedule 7.7 hereto, there 
are no actions, suits, proceedings or investigations of any kind pending or 
threatened against HBOC, the Borrower or any of their Subsidiaries before any 
court, tribunal or administrative agency or board that, if adversely 
determined, might, either in any case or in the aggregate, materially 
adversely affect the properties, assets, financial condition or business of 
HBOC, the Borrower and their Subsidiaries or materially impair the right of 
HBOC, the Borrower and their Subsidiaries, considered as a whole, to carry on 
business substantially as now conducted by them, or result in any substantial 
liability not adequately covered by insurance, or for which adequate reserves 
are not maintained on the consolidated balance sheet of HBOC, the Borrower 
and their Subsidiaries, or which question the validity of this Credit 
Agreement or any of the other Loan Documents, or any action taken or to be 
taken pursuant hereto or thereto.

     7.8.   No Materially Adverse Contracts, etc.  Neither HBOC, the Borrower 
nor any of their Subsidiaries is subject to any charter, corporate or other 
legal restriction, or any judgment, decree, order, rule or regulation that 
has or is expected in the future to have a materially adverse effect on the 
business, assets or financial condition of HBOC, the Borrower or any of their 
Subsidiaries.  Neither HBOC, the Borrower nor any of their Subsidiaries taken 
as a whole is a party to any contract or agreement that has or is expected, 
in the judgment of HBOC's or the Borrower's officers, to have any materially 
adverse effect on the business of HBOC, the Borrower and their Subsidiaries, 
taken as a whole.

     7.9.   Compliance with Other Instruments, Laws, etc.  Neither HBOC, the 
Borrower nor any of their Subsidiaries is in violation of any provision of 
its charter documents, bylaws, or any agreement or instrument to which it may 
be subject or by which it or any of its properties may be bound or any 
decree, order, judgment, statute, license, rule or regulation, in any of the 
foregoing cases in a manner that could result in the imposition of 
substantial penalties or materially and adversely affect the financial 
condition, properties or business of HBOC, the Borrower and their 
Subsidiaries taken as a whole.

     7.10.  Tax Status.  Except as otherwise disclosed to the Agent and the 
Banks prior to the Closing Date, HBOC, the Borrower and their Subsidiaries 
(a) have made or filed all federal and state income and all other tax 
returns, reports and declarations required by any jurisdiction to which any 
of them is subject, (b) have paid all taxes and other governmental 
assessments and charges shown or determined to be due on such returns, 
reports and declarations, except those being contested in good faith and by 
appropriate proceedings and (c) have set aside on their books provisions 
reasonably adequate for the payment of all taxes for periods subsequent to 
the periods to which such returns, reports or declarations apply.  There are 
no unpaid taxes in any material amount claimed to be due by the taxing 
authority of any jurisdiction, and the officers of HBOC and the Borrower know 
of no basis for any such claim.

                                      30
<PAGE>

     7.11.  No Event of Default.  No Default or Event of Default has occurred 
and is continuing.

     7.12.  Holding Company and Investment Company Acts.  Neither HBOC, the 
Borrower nor any of their Subsidiaries is a "holding company", or a 
"subsidiary company" of a "holding company", or an affiliate" of a "holding 
company", as such terms are defined in the Public Utility Holding Company Act 
of 1935; nor is it an "investment company", or an "affiliated company" or a 
"principal underwriter" of an "investment company", as such terms are defined 
in the Investment Company Act of 1940.

     7.13.  Absence of Financing Statements, etc.  Except with respect to 
Permitted Liens, there is no financing statement, security agreement, chattel 
mortgage, real estate mortgage or other document filed or recorded with any 
filing records, registry or other public office, that purports to cover, 
affect or give notice of any present or possible future lien on, or security 
interest in, any assets or property of HBOC, the Borrower or any of their 
Subsidiaries or any rights relating thereto.

     7.14.  Certain Transactions.  Except for arm's length transactions 
pursuant to which HBOC, the Borrower or any of their Subsidiaries makes 
payments in the ordinary course of business upon terms no less favorable than 
HBOC, the Borrower or such Subsidiary could obtain from third parties, none 
of the officers, directors, or employees of HBOC, the Borrower or any of 
their Subsidiaries is presently a party to any material transaction with 
HBOC, the Borrower or any of their Subsidiaries (other than for services as 
employees, officers and directors), including any contract, agreement or 
other arrangement providing for the furnishing of services to or by, 
providing for rental of real or personal property to or from, or otherwise 
requiring payments to or from any officer, director or such employee or, to 
the knowledge of HBOC or the Borrower, any corporation, partnership, trust or 
other entity in which any officer, director, or any such employee has a 
substantial interest or is an officer, director, trustee or partner.

     7.15.  Employee Benefit Plans.

            7.15.1.  In General Each Employee Benefit Plan has been maintained
     and operated in compliance in all material respects with the provisions of
     ERISA and, to the extent applicable, the Code, including but not limited
     to the provisions thereunder respecting prohibited transactions.

            7.15.2.  Terminability of Welfare Plans Under each Employee Benefit
     Plan which is an employee welfare benefit plan within the meaning of
     Section 3(1) or Section 3(2)(B) of ERISA, no benefits are due unless the
     event giving rise to the benefit entitlement occurs prior to plan
     termination (except as required by Title I, Part 6 of ERISA) . HBOC and the
     Borrower or an ERISA Affiliate,

                                      31
<PAGE>

     as appropriate, may terminate each such Plan at any time (or at any time 
     subsequent to the expiration of any applicable bargaining agreement) in
     the discretion of HBOC, the Borrower or such ERISA Affiliate without
     liability to any Person.

            7.15.3.  Guaranteed Pension Plans.  Each contribution required to be
     made to a Guaranteed Pension Plan, whether required to be made to avoid the
     incurrence of an accumulated funding deficiency, the notice or lien
     provisions of Section 302(f) of ERISA, or otherwise, has been timely made. 
     No waiver of an accumulated funding deficiency or extension of amortization
     periods has been received with respect to any Guaranteed Pension Plan.  No
     liability to the PBGC (other than required insurance premiums, all of which
     have been paid) has been incurred by the Borrower or any ERISA Affiliate
     with respect to any Guaranteed Pension Plan and there has not been any
     ERISA Reportable Event, or any other event or condition which presents a
     material risk of termination of any Guaranteed Pension Plan by the PBGC.
     Based on the latest valuation of each Guaranteed Pension Plan (which in
     each case occurred within twelve months of the date of this
     representation), and on the actuarial methods and assumptions employed for
     that valuation, the aggregate benefit liabilities of all such Guaranteed
     Pension Plans within the meaning of Section 4001 of ERISA did not exceed
     the aggregate value of the assets of all such Guaranteed Pension Plans,
     disregarding for this purpose the benefit liabilities and assets of any
     Guaranteed Pension Plan with assets in excess of benefit liabilities.

            7.15.4.  Multiemployer Plans  Neither HBOC, the Borrower nor any
     ERISA Affiliate has incurred any material liability (including secondary
     liability) to any Multiemployer Plan as a result of a complete or partial
     withdrawal from such Multiemployer Plan under Section 4201 of ERISA or as
     a result of a sale of assets described in Section 4204 of ERISA.  Neither
     HBOC, the Borrower nor any ERISA Affiliate has been notified that any
     Multiemployer Plan is in reorganization or insolvent under and within the
     meaning of Section 4241 or Section 4245 of ERISA or that any Multiemployer
     Plan intends to terminate or has been terminated under Section 4041A of
     ERISA.

     7.16.  Regulations U and X.  The proceeds of the Revolving Credit Loans 
shall be used for general corporate and working capital purposes.  The 
Borrower will obtain Letters of Credit solely for working capital and general 
corporate purposes.  No portion of any of the Revolving Credit Loans is to be 
used, and no portion of any Letter of Credit is to be obtained, for the 
purpose of purchasing or carrying any "margin security" or "margin stock" as 
such terms are used in Regulations U and X of the Board of Governors of the 
Federal Reserve System, 12 C.F.R. Parts 221 and 224.

     7.17.  Environmental Compliance.  HBOC and the Borrower have taken all 
necessary steps to investigate the past and present condition and usage of 
the Real 

                                      32
<PAGE>

Estate and the operations conducted thereon and, based upon such diligent 
investigation, have determined that:

             (a)  none of HBOC, the Borrower, their Subsidiaries or any
     operator of the Real Estate or any operations thereon is in violation,
     or alleged violation, of any judgment, decree, order, law, license, rule
     or regulation pertaining to environmental matters, including without
     limitation, those arising under the Resource Conservation and Recovery Act
     ("RCRA"), the Comprehensive Environmental Response, Compensation and
     Liability Act of 1980 as amended ("CERCLA"), the Superfund Amendments
     and Reauthorization Act of 1986 ("SARA"), the Federal Clean Water Act, the
     Federal Clean Air Act, the Toxic Substances Control Act, or any state or
     local statute, regulation, ordinance, order or decree relating to health,
     safety or the environment (hereinafter "Environmental Laws"), which
     violation would have a material adverse effect on the environment or the
     business, assets or financial condition of HBOC, the Borrower and their
     Subsidiaries taken as a whole;

            (b)  neither HBOC, the Borrower nor any of their Subsidiaries has
     received notice from any third party including, without limitation: any
     federal, state or local governmental authority, (i) that any one of them
     has been identified by the United States Environmental Protection Agency
     ("EPA") as a potentially responsible party under CERCLA with respect to a
     site listed on the National Priorities List, 40 C.F.R. Part 300 Appendix B;
     (ii) that any hazardous waste, as defined by 42 U.S.C. Section 6903(5), any
     hazardous substances as defined by 42 U.S.C. Section 9601(14), any
     pollutant or contaminant as defined by 42 U.S.C. Section 9601(33) and any
     toxic substances, oil or hazardous materials or other chemicals or
     substances regulated by any Environmental Laws ("Hazardous Substances")
     which any one of them has generated, transported or disposed of has been
     found at any site at which a federal, state or local agency or other third
     party has conducted or has ordered that HBOC, the Borrower or any of their
     Subsidiaries conduct a remedial investigation, removal or other response
     action pursuant to any Environmental Law; or (iii) that it is or shall be a
     named party to any claim, action, cause of action, complaint, or legal or
     administrative proceeding (in each case, contingent or otherwise) arising
     out of any third party's incurrence of costs, expenses, losses or damages
     of any kind whatsoever in connection with the release of Hazardous
     Substances;

            (c)  except as set forth on Schedule 7.17 attached hereto: (i) to
     the best of HBOC's and the Borrower's knowledge no portion of the Real
     Estate has been used for the handling, processing, storage or disposal of
     Hazardous Substances except in accordance in all material respects with
     applicable Environmental Laws; and no underground tank or other
     underground storage receptacle for Hazardous Substances is located on any
     portion of the Real Estate; (ii) in the course of any activities conducted
     by HBOC, the Borrower, their Subsidiaries or operators of its properties,
     no Hazardous Substances have been generated or are being used on the Real
     Estate except

                                      33
<PAGE>

     in accordance in all material respects with applicable Environmental Laws;
     (iii) to the best of HBOC's and the Borrower's knowledge there have been
     no releases (i.e. any past or present releasing, spilling, leaking,
     pumping, pouring, emitting, emptying, discharging, injecting, escaping,
     disposing or dumping) or threatened releases of Hazardous Substances on,
     upon, into or from the properties of HBOC, the Borrower or their
     Subsidiaries, which releases would have a material adverse effect on the
     value of any of the Real Estate or adjacent properties or the environment;
     (iv) to the best of HBOC's and the Borrower's knowledge there have been no
     releases on, upon, from or into any real property in the vicinity of any
     of the Real Estate which, through soil or groundwater contamination, may
     have come to be located on, and which would have a material adverse effect
     on the value of, the Real Estate; and (v) to the best of HBOC's and the
     Borrower's knowledge in addition, any Hazardous Substances that have been
     generated on any of the Real Estate have been transported offsite only by
     carriers having an identification number issued by the EPA, treated or
     disposed of only by treatment or disposal facilities maintaining valid
     permits as required under applicable Environmental Laws, which
     transporters and facilities have been and are, to the best of HBOC's and
     the Borrower's knowledge, operating in compliance with such permits and
     applicable Environmental Laws; and

            (d)  To the best of HBOC's and the Borrower's knowledge, none of
     HBOC, the Borrower, their Subsidiaries, or any of the other Real Estate is
     subject to any applicable environmental law requiring the performance of
     Hazardous Substances site assessments, or the removal or remediation of
     Hazardous Substances, or the giving of notice to any governmental agency or
     the recording or delivery to other Persons of an environmental disclosure
     document or statement by virtue of the transactions set forth herein and
     contemplated hereby.

     7.18.  Subsidiaries, etc.  The Borrower, HBO & Company Canada Ltd. 
("Ltd."), HBO & Company (UK) Limited ("HBO UK") and HBO & Company (VI), Inc. 
are the only Subsidiaries of HBOC.  HBOC Medical Ltd. and First Data Health 
Systems (Ireland), Ltd. are the only Subsidiaries of the Borrower.  Data-Med 
Computer Services, Ltd. and HBO & Company (ST & SW), Ltd. are the only 
Subsidiaries of HBO UK.  Except as set forth on Schedule 7.18 hereto, neither 
the Borrower nor any Subsidiary of any of the Borrower is engaged in any 
joint venture or partnership with any other Person.

     7.19.  No Amendments to Certain Documents.

     Each of the representations and warranties made by HBOC and the Borrower 
in each of the Loan Documents was true and correct in all material respects 
when made and continues to be true and correct in all material respects on 
the Closing Date, except to the extent that any of such representations and 
warranties relate, by the express terms thereof, solely to a date falling 
prior to the Closing Date, and except to the extent that any of such 
representations and warranties may have been 

                                      34
<PAGE>

affected by the consummation of the transactions contemplated and permitted 
or required by the Loan Documents.

     7.20.  Disclosure.  No representation or warranty made by HBOC or the 
Borrower in this Credit Agreement or in any agreement, instrument, document, 
certificate, statement or letter furnished to the Agent or any Bank by or on 
behalf of HBOC and the Borrower in connection with any of the transactions 
contemplated by any of the Loan Documents contains any untrue statement of a 
material fact or omits to state a material fact necessary in order to make 
the statements contained therein not misleading in light of the circumstances 
in which they are made.  Other than the transactions reflected by the balance 
sheet referred to in Section 7.4 hereof and other than as set forth in the 
other Loan Documents, there is no fact known to HBOC or the Borrower as of 
the Closing Date (other than general economic and political conditions 
affecting business generally) which materially adversely affects, or which is 
reasonably likely to in the future materially adversely affect, the financial 
position, business, operations, or affairs of HBOC, the Borrower and their 
respective Subsidiaries taken as a whole.

     8.  AFFIRMATIVE COVENANTS OF THE BORROWER.  

     Each of HBOC and the Borrower covenants and agrees that, so long as any 
Revolving Credit Loan, Unpaid Reimbursement Obligation, Letter of Credit or 
Revolving Credit Note is outstanding or any Bank has any obligation to make 
any Revolving Credit Loans or the Agent has any obligation to issue, extend 
or renew any Letters of Credit:

     8.1.   Punctual Payment.  The Borrower will duly and punctually pay or 
cause to be paid the principal and interest on the Revolving Credit Loans, 
all Reimbursement Obligations, the Letter of Credit Fees, the commitment 
fees, the Agent's fee and all other amounts provided for in this Credit 
Agreement and the other Loan Documents to which HBOC, the Borrower or any of 
their Subsidiaries are a party, all in accordance with the terms of this 
Credit Agreement and such other Loan Documents.

     8.2.   Maintenance of Office.  The Borrower will maintain its chief 
executive office at 301 Perimeter Center North, Atlanta, Georgia 30346 or at 
such other place in the United States of America as the Borrower shall 
designate upon prior written notice to the Agent, where notices, 
presentations and demands to or upon the Borrower in respect of the Loan 
Documents to which the Borrower is a party may be given or made.              

     8.3.   Records and Accounts.  HBOC and the Borrower will (a) keep, and 
cause each of their Subsidiaries to keep, true and accurate records and books 
of account in which full, true and correct entries will be made in accordance 
with generally accepted accounting principles and (b) maintain adequate 
accounts and reserves for all taxes (including income taxes), depreciation, 
depletion, obsolescence 

                                     35
<PAGE>

and amortization of their properties and the properties of their 
Subsidiaries, contingencies, and other reserves.

     8.4.   Financial Statements, Certificates and Information.  HBOC and the 
Borrower will deliver to each of the Banks:

            (a)  as soon as practicable, but in any event not later than ninety
     (90) days after the end of each fiscal year of the Borrower, the
     consolidated balance sheet of HBOC, the Borrower and their Subsidiaries
     and the consolidating balance sheet of HBOC, the Borrower and their
     Subsidiaries, each as at the end of such year, and the related
     consolidated statement of income and consolidated statement of cash flow
     and consolidating statement of income and consolidating statement of cash
     flow for such year, each setting forth in comparative form the figures for
     the previous fiscal year and all such consolidated and consolidating
     statements to be in reasonable detail, prepared in accordance with
     generally accepted accounting principles, and certified without
     qualification by Arthur Andersen LLP or by other independent certified
     public accountants satisfactory to the Agent, together with a written
     statement from such accountants to the effect that they have read the
     relevant portions of this Credit Agreement necessary to deliver such
     statement, and that, in making the examination necessary to said
     certification, they have obtained no knowledge of any Default or Event of
     Default which relate to any issue or matters which, according to generally
     accepted auditing standards, such accountants would generally examine and
     issue such a statement, or, if such accountants shall have obtained
     knowledge of any then existing Default or Event of Default they shall
     disclose in such statement any such Default or Event of Default; provided
     that such accountants shall not be liable to the Banks for failure to
     obtain knowledge of any Default or Event of Default;

            (b)  as soon as practicable, but in any event not later than
     forty-five (45) days after the end of each of the fiscal quarters of the
     Borrower, copies of the unaudited consolidated balance sheet of HBOC, the
     Borrower and their Subsidiaries and the unaudited consolidating balance
     sheet of HBOC, the Borrower and their Subsidiaries, each as at the end of
     such quarter, and the related consolidated statement of income and
     consolidated statement of cash flow and consolidating statement of income
     and consolidating statement of cash flow for the portion of the Borrower's
     fiscal year then elapsed, all in reasonable detail and prepared in
     accordance with generally accepted accounting principles, together with a
     certification by the principal financial or accounting officer of HBOC and
     the Borrower that the information contained in such financial statements
     fairly presents the financial position of HBOC, the Borrower and their
     Subsidiaries on the date thereof (subject to year-end adjustments);

            (c)  simultaneously with the delivery of the financial statements
     referred to in subsections (a) and (b) above, a statement certified by the

                                      36
<PAGE>

     principal financial or accounting officer of the Borrower in substantially
     the form of Exhibit C hereto (the "Compliance Certificate") and setting
     forth in reasonable detail computations evidencing compliance with the
     covenants contained in Section 10 and (if applicable) reconciliations to
     reflect changes in generally accepted accounting principles since the
     Balance Sheet Date;

            (d)  contemporaneously with the filing or mailing thereof, copies
     of all material of a financial nature filed with the Securities and
     Exchange Commission or sent to the stockholders of HBOC; and

            (e)  from time to time such other financial data and information
     (including accountants, management letters) as the Agent or any Bank may
     reasonably request.

     8.5.   Notices.

            8.5.1.  Defaults.  HBOC and the Borrower will promptly upon 
     becoming aware thereof, notify the Agent and each of the Banks in writing
     of the occurrence of any Default or Event of Default.  If any Person shall
     give any notice or take any other action in respect of a claimed default
     (whether or not constituting an Event of Default) under this Credit
     Agreement or any other note, evidence of indebtedness, indenture or other
     obligation to which or with respect to which HBOC, the Borrower or any of
     their Subsidiaries is a party or obligor, whether as principal, guarantor,
     surety or otherwise, HBOC and the Borrower shall forthwith give written
     notice thereof to the Agent and each of the Banks, describing the notice
     or action and the nature of the claimed default.

            8.5.2.   Environmental Events.  HBOC and the Borrower will promptly
     give notice to the Agent and each of the Banks (a) of any violation of any
     Environmental Law that HBOC, the Borrower or any of their Subsidiaries
     reports in writing or is reportable by such Person in writing (or for
     which any written report supplemental to any oral report is made) to any
     federal, state or local environmental agency and (b) upon becoming aware
     thereof, of any inquiry, proceeding, investigation, or other action,
     including a notice from any agency of potential environmental liability,
     or any federal, state or local environmental agency or board, that has the
     potential to materially affect the assets, liabilities, financial
     conditions or operations of HBOC, the Borrower and their Subsidiaries,
     taken as a whole.

            8.5.3.   Notice of Litigation and Judgments.  HBOC and the Borrower
     will, and will cause each of their Subsidiaries to, give notice to the
     Agent and each of the Banks in writing within fifteen (15) days of
     becoming aware of any litigation or proceedings threatened in writing or
     any pending litigation and proceedings affecting HBOC, the Borrower or any
     of their Subsidiaries or to which HBOC, the Borrower or any of

                                      37
<PAGE>

     their Subsidiaries is or becomes a party involving an uninsured claim
     against HBOC, the Borrower or any of their Subsidiaries that could
     reasonably be expected to have a materially adverse effect on HBOC, the
     Borrower and their Subsidiaries, taken as a whole, and stating the nature
     and status of such litigation or proceedings.  HBOC and the Borrower will,
     and will cause each of their Subsidiaries to, give notice to the Agent and
     each of the Banks, in writing, in form and detail satisfactory to the
     Agent, at the earlier of (10) days (a) of the Borrower receiving notice
     of, or (b) after the Borrower should have known of, any judgment not
     covered by insurance, final or otherwise, against HBOC, the Borrower or
     any of their Subsidiaries in an amount in excess of $10,000,000.

     8.6.   Corporate Existence; Maintenance of Properties.  Each of HBOC and 
the Borrower will do or cause to be done all things necessary to preserve and 
keep in full force and effect its corporate existence, rights and franchises 
and those of their Subsidiaries.  Each of HBOC and the Borrower (a) will 
cause all of its material properties and those of its Subsidiaries used or 
useful in the conduct of its business or the business of its Subsidiaries to 
be maintained and kept in good condition, repair and working order and 
supplied with all necessary equipment, (b) will cause to be made all 
necessary repairs, renewals, replacements, betterments and improvements 
thereof, all as in the judgment of HBOC and the Borrower may be necessary so 
that the business carried on in connection therewith may be properly and 
advantageously conducted at all times, and (c) will, and will cause each of 
its Subsidiaries to, continue to engage primarily in the businesses now 
conducted by them and in related businesses; provided that nothing in this 
Section 8.6 shall prevent HBOC or the Borrower from discontinuing the 
operation and maintenance of any of its properties or any of those of its 
Subsidiaries if such discontinuance is, in the judgment of HBOC or the 
Borrower, as the case may be, desirable in the conduct of its or their 
business and that do not in the aggregate materially adversely affect the 
business of HBOC, the Borrower and their Subsidiaries on a consolidated basis.

     8.7.   Insurance.  Each of HBOC and the Borrower will, and will cause 
each of its Subsidiaries to, maintain with financially sound and reputable 
insurers insurance with respect to its properties and business against such 
casualties and contingencies as shall be in accordance with the general 
practices of businesses engaged in similar activities in similar geographic 
areas and in amounts, containing such terms, in such forms and for such 
periods as may be reasonable and prudent.

     8.8.   Taxes.  HBOC and the Borrower will, and will cause each of its 
Subsidiaries to, duly pay and discharge, or cause to be paid and discharged, 
before the same shall become overdue, all taxes, assessments and other 
governmental charges imposed upon it and its real properties, sales and 
activities, or any part thereof, or upon the income or profits therefrom, as 
well as all claims for labor, materials, or supplies that if unpaid might by 
law become a lien or charge upon any of its property; provided that any such 
tax, assessment, charge, levy or claim need not be paid if the validity or 
amount thereof shall currently be contested in good faith by appropriate 
proceedings and if HBOC, the Borrower or such Subsidiary shall have set aside 
on its books adequate reserves with respect thereto; and provided further 
that HBOC, the Borrower and each Subsidiary of the Borrower will

                                      38
<PAGE>

pay all such taxes, assessments, charges, levies or claims forthwith upon the 
commencement of proceedings to foreclose any lien that may have attached as 
security therefor.

     8.9.   Inspection of Properties and Books, etc.

            8.9.1.   General.  HBOC and the Borrower shall permit the Agent,
     through the Agent's other designated representatives, to visit and inspect
     any of the properties of HBOC, the Borrower or any of their Subsidiaries,
     to examine the books of account of HBOC, the Borrower and their
     Subsidiaries (and, at the expense of the Agent and the Banks if no Default
     or Event of Default has occurred or is continuing, to make copies thereof
     and extracts therefrom), and to discuss the affairs, finances and accounts
     of HBOC, the Borrower and their Subsidiaries with, and to be advised as to
     the same by, its and their officers, all at such reasonable times and
     intervals as the Agent or any Bank may reasonably request, provided,
     however, if a Default or Event of Default has occurred and is continuing,
     any of the Banks shall be permitted to visit and inspect the properties of
     HBOC, the Borrower or any of their Subsidiaries in accordance with the
     provisions of this Section 8.9.1.

            8.9.2.   Communications with Accountants.  Each of HBOC and the
     Borrower authorizes the Agent, when accompanied by the Borrower and, if
     accompanied by the Borrower and the Agent, the Banks to communicate
     directly with HBOC's and the Borrower's independent certified public
     accountants and authorizes such accountants to disclose to the Agent and
     the Banks any and all financial statements and other supporting financial
     documents and schedules including copies of any management letter with
     respect to the business, financial condition and other affairs of HBOC and
     the Borrower or any of their Subsidiaries.

     8.10.  Compliance with Laws, Contracts, Licenses, and Permits.  Each of 
HBOC and the Borrower will, and will cause each of its Subsidiaries to, 
comply with (a) the applicable laws and regulations in all material respects 
wherever its business is conducted, including all Environmental Laws, (b) the 
provisions of its charter documents and by-laws, (c) all material agreements 
and instruments by which it or any of its properties may be bound and (d) all 
applicable decrees, orders, and judgments.  If any authorization, consent, 
approval, permit or license from any officer, agency or instrumentality of 
any government shall become necessary or required in order that HBOC, the 
Borrower or any of their Subsidiaries may fulfill any of its obligations 
hereunder or any of the other Loan Documents to which HBOC, the Borrower or 
such Subsidiary is a party, HBOC and the Borrower will, or (as the case may 
be) will cause such Subsidiary to, immediately take or cause to be taken all 
reasonable steps within the power of HBOC, the Borrower or such Subsidiary to 
obtain such authorization, consent, approval, permit or license and furnish 
the Agent and the Banks with evidence thereof.

                                      39
<PAGE>

     8.11.  Employee Benefit Plans.  HBOC and the Borrower will (a) promptly 
upon filing the same with the Department of Labor or Internal Revenue Service 
and upon the request of the Agent, furnish to the Agent a copy of the most 
recent actuarial statement required to be submitted under Section 103(d) of 
ERISA and Annual Report, Form 5500, with all required attachments, in respect 
of each Guaranteed Pension Plan and (b) promptly upon receipt or dispatch, 
furnish to the Agent any notice, report or demand sent or received in respect 
of a Guaranteed Pension Plan under Sections 302, 4041, 4042, 4043, 4063, 
4065, 4066 and 4068 of ERISA, or in respect of a Multiemployer Plan, under 
Sections 4041A, 4202, 4219, 4242, or 4245 of ERISA.

     8.12.  Use of Proceeds.  The Borrower will use the proceeds of the 
Revolving Credit Loans for general corporate and working capital purposes.  
The Borrower will obtain Letters of Credit solely for general corporate and 
working capital purposes.

     8.13.  Further Assurances.    HBOC and the Borrower will, and will cause 
each of their Subsidiaries to, cooperate with the Banks and the Agent and 
execute such further instruments and documents as the Banks or the Agent 
shall reasonably request to carry out to their satisfaction the transactions 
contemplated by this Credit Agreement and the other Loan Documents.

     9.  CERTAIN NEGATIVE COVENANTS OF THE BORROWER.  

     HBOC and the Borrower covenant and agree that, so long as any Revolving 
Credit Loan, Unpaid Reimbursement Obligation, Letter of Credit or Revolving 
Credit Note is outstanding or any Bank has any obligation to make any 
Revolving Credit Loans or the Agent has any obligations to issue any Letters 
of Credit:

     9.1.   Restrictions on Indebtedness.  Each of HBOC and the Borrower will 
not, and will not permit any of its Subsidiaries to, create, incur, assume, 
guarantee or become liable, contingently or otherwise (collectively, the 
"Debt Incurrence"), with respect to any Indebtedness; provided, however, so 
long as no Default or Event of Default has occurred and is continuing or 
would result therefrom, HBOC and its Subsidiaries shall be permitted to 
create, incur, assume, guarantee or become liable, contingently or otherwise, 
with respect to any Indebtedness.  If such Debt Incurrence is in connection 
with an acquisition, the principal amount of such Debt Incurrence is greater 
than or equal to $100,000,000 and there are Revolving Credit Loans 
outstanding or Letters of Credit with an aggregate face amount in excess of 
$10,000,000 outstanding at the time of the proposed Debt Incurrence, the 
Borrower shall prior to such Debt Incurrence demonstrate to the satisfaction 
of the Agent based on a pro forma Compliance Certificate covenant compliance 
with Section 10 on a pro forma basis immediately prior to and after giving 
effect to such Debt Incurrence on the assumption that such Debt Incurrence 
occurred at the beginning of the covenant calculations period, and any 
payments on such Indebtedness shall be included in the calculation of Total 
Debt Service.

                                      40
<PAGE>

     9.2.   Restrictions on Liens.  Each of HBOC and the Borrower will not, 
and will not permit any of its Subsidiaries to, (a) create or incur or suffer 
to be created or incurred or to exist any lien, encumbrance, mortgage, 
pledge, charge, restriction or other security interest of any kind upon any 
of its property or assets of any character whether now owned or hereafter 
acquired, or upon the income or profits therefrom; (b) transfer any of such 
property or assets or the income or profits therefrom for the purpose of 
subjecting the same to the payment of Indebtedness or performance of any 
other obligation in priority to payment of its general creditors; (c) 
acquire, or agree or have an option to acquire, any property or assets upon 
conditional sale or other title retention or purchase money security 
agreement, device or arrangement; (d) suffer to exist for a period of more 
than thirty (30) days after the same shall have been incurred any 
Indebtedness or claim or demand against it that if unpaid might by law or 
upon bankruptcy or insolvency, or otherwise, be given any priority whatsoever 
over its general creditors; or (e) except with respect to sales of 
Receivables to HBOC Capital or the assumption of credit risk on third party 
leases through HBOC Capital, sell, assign, pledge or otherwise transfer any 
accounts, contract rights, general intangibles, chattel paper or instruments, 
with or without recourse without the Banks' prior written consent; provided 
that HBOC, the Borrower and any Subsidiary of the Borrower may create or 
incur or suffer to be created or incurred or to exist:

              (i)  liens in favor of HBOC or the Borrower on all or part of the
     assets of Subsidiaries of HBOC or the Borrower securing Indebtedness owing
     by Subsidiaries of HBOC or the Borrower to the Borrower;

             (ii)  liens to secure taxes, assessments and other government
     charges in respect of obligations not overdue or liens on properties to
     secure claims for labor, material or supplies in respect of obligations
     not overdue;

            (iii)  deposits or pledges made in connection with, or to secure
     payment of, workmen's compensation, unemployment insurance, old age
     pensions or other social security obligations;

             (iv)  liens on properties in respect of judgments or awards, the
     Indebtedness with respect to which is permitted by Section 9.1;

              (v)  liens of carriers, warehousemen, mechanics and materialmen,
     and other like liens on properties in existence less than 120 days from
     the date of creation thereof in respect of obligations not overdue;

             (vi)  encumbrances on Real Estate consisting of easements, rights
      of way, zoning restrictions, restrictions on the use of real property and
      defects and irregularities in the title thereto, landlord's or lessor's
      liens under leases to which HBOC, the Borrower or a Subsidiary of HBOC or
      the Borrower is a party, and other minor liens or encumbrances none of
      which in the opinion of HBOC or the Borrower interferes materially with
      the use of the property affected in the ordinary conduct of the business
      of HBOC, the Borrower and

                                      41
<PAGE>

     their Subsidiaries, which defects do not individually or in the aggregate
     have a materially adverse effect on the business of HBOC or the Borrower
     individually or of HBOC, the Borrower and their Subsidiaries on a
     consolidated basis;

            (vii)  liens existing on the date hereof and listed on Schedule 9.2
     hereto;

           (viii)  purchase money security interests in or purchase money
      mortgages on real or personal property acquired after the date hereof to
      secure purchase money Indebtedness permitted by Section 9.1, incurred in
      connection with the acquisition of such property, which security
      interests or mortgages cover only the real or personal property so
      acquired; and

             (ix)  liens on assets of a new Subsidiary which is not party to
     any Loan Document, which liens are in existence on the date of
     acquisition of the stock or assets of such new Subsidiary and not created
     in contemplation of such acquisition, and, if such Subsidiary is
     thereafter merged with and HBOC, the Borrower or any other Subsidiary,
     liens on assets of the survivor of such merger which existed on the date
     of such merger.

     9.3.   Restrictions on Investments.  Each of HBOC and the Borrower will 
not, and will not permit any of its Subsidiaries to, make or permit to exist 
or to remain outstanding any Investment except, so long as no Default or 
Event of Default has occurred and is continuing or would exist as a result 
thereof, Investments consisting of Investments made in connection with, and 
pursuant to the terms of, HBOC's and the Borrower's Cash Investment Policy.

     9.4.   Distributions.  HBOC will not make any Distributions or any other 
payments to stockholders, provided, however, if no Default or Event of 
Default has occurred or is continuing or would exist after giving effect 
thereto, HBOC shall be permitted to make Distributions.

     9.5.   Merger, Consolidation and Disposition of Assets.

            9.5.1.  Mergers and Acquisitions.  Neither HBOC nor the Borrower
     will, and will not permit any of their Subsidiaries to, become a party to
     any  merger or consolidation, or agree to or effect any asset acquisition
     or stock acquisition (other than the acquisition of assets in the ordinary
     course of business consistent with past practices) except (a) the merger
     or consolidation of one or more of the Subsidiaries of the Borrower or
     HBOC with and into the Borrower or HBOC, as the case may be; (b) the
     merger or consolidation of two or more Subsidiaries of the Borrower or
     HBOC; and (c) other asset or stock acquisitions where (i) if such
     acquisition involves the merger of the Borrower or HBOC and any other
     Person, as the case may be, HBOC or the Borrower, as the case may be,
     is the surviving entity of any such acquisition and merger; (ii) no
     Default or Event or Event of Default has

                                      42
<PAGE>

     occurred or is continuing or would exist after giving effect thereto;
     (iii) the Borrower has provided the Agent with prior written notice of
     such acquisition; (iv) the Borrower has, (1) if the consideration for
     such acquisition equals or exceeds $100,000,000 in cash or $200,000,000 in
     stock or (2) assumed or incurred any Indebtedness in connection with such
     acquisition in an aggregate amount equal to or greater than $100,000,000,
     and there are any Revolving Credit Loans outstanding or Letters of Credit
     with an aggregate face amount in excess of $10,000,000 outstanding at the
     time of the proposed acquisition, demonstrated to the Agent based on a pro
     forma Compliance Certificate covenant compliance with Section 10 on a pro
     forma basis immediately prior to and after giving effect to each such
     acquisition on the assumption that such acquisition occurred at the
     beginning of the covenant calculations period; (v) any payments on
     acquisition-related debt instruments shall be included in the calculation
     of Total Debt Service; and (vi) any acquisition-related debt instruments
     would not violate the restrictions on Indebtedness set forth in Section
     9.1.  If a pro forma Compliance Certificate is not required under clause
     (iv) solely due to the fact that there are no Revolving Credit Loans or
     Letters of Credit outstanding, the Borrower shall not thereafter request
     a Revolving Credit Loan or Letter of Credit until either an actual
     Compliance Certificate or a pro forma Compliance Certificate has been
     delivered.

            9.5.2.   Disposition of Assets.  Each of HBOC and the Borrower will
     not, and will not permit any of its Subsidiaries to, become a party to or
     agree to or effect any disposition of assets, provided, however, HBOC and
     the Borrower shall be permitted to dispose of assets provided (a) no
     Default or Event of Default has occurred and is continuing or would exist
     as a result thereof; and (ii) the Borrower has provided the Agent with
     prior written notice of any such material disposition; and in the case of
     all dispositions of assets the aggregate maximum amount of all assets
     disposed of during the term of this Credit Agreement shall not exceed an
     amount equal to twenty percent (20%) of Consolidated Total Assets prior to
     such dispositions.

     9.6.   Compliance with Environmental Laws.  The Borrower will not, and 
will not permit any of its Subsidiaries to do any of the following in any 
manner that would violate in any material respect any Environmental Law or 
bring any of the Real Estate in material violation of any Environmental Law, 
(a) use any of the Real Estate or any portion thereof for the handling, 
processing, storage or disposal of Hazardous Substances, (b) cause or permit 
to be located on any of the Real Estate any underground tank or other 
underground storage receptacle for Hazardous Substances, (c) generate any 
Hazardous Substances on any of the Real Estate, (d) conduct any activity at 
any Real Estate or use any Real Estate in any manner so as to cause a release 
(i.e. releasing, spilling, leaking, pumping, pouring, emitting, emptying, 
discharging, injecting, escaping, leaching, disposing or dumping) or 
threatened release of Hazardous Substances on, upon or into the Real Estate 
or (e) otherwise conduct any activity at any Real Estate or use any Real 
Estate in any

                                      43
<PAGE>

manner that would violate in any material respect any Environmental Law or 
bring such Real Estate in material violation of any Environmental Law.

     9.7.   Employee Benefit Plans.  Neither HBOC, the Borrower nor any ERISA 
Affiliate will

            (a)  engage in any "prohibited transaction" within the meaning of
     Section 406 of ERISA or Section 4975 of the Code which could result in a
     material liability for HBOC, the Borrower or any of their Subsidiaries; or

            (b)  permit any Guaranteed Pension Plan to incur an "accumulated
     funding deficiency", as such term is defined in Section 302 of ERISA,
     whether or not such deficiency is or may be waived; or

            (c)  fail to contribute to any Guaranteed Pension Plan to an extent
     which, or terminate any Guaranteed Pension Plan in a manner which, could
     result in the imposition of a lien or encumbrance on the assets of HBOC,
     the Borrower or any of its Subsidiaries pursuant to Section 302(f) or
     Section 4068 of ERISA; or

            (d)  permit or take any action which would result in the aggregate
     benefit liabilities (with the meaning of Section 4001 of ERISA) of all
     Guaranteed Pension Plans exceeding the value of the aggregate assets of
     such Plans, disregarding for this purpose the benefit liabilities and
     assets of any such Plan with assets in excess of benefit liabilities, by
     more than the amount set forth in Section 7.15.3.

     10.  FINANCIAL COVENANTS OF THE BORROWER.  

     Each of HBOC and the Borrower covenants and agrees that, so long as any
Revolving Credit Loan, Unpaid Reimbursement Obligation, Letter of Credit or
Revolving Credit Note is outstanding or any Bank has any obligation to make any
Revolving Credit Loans or the Agent has any obligation to issue, extend or renew
any Letters of Credit:

     10.1.  Operating Cash Flow to Total Debt Service.  HBOC and the Borrower 
will not permit the ratio of Consolidated Operating Cash Flow to Consolidated 
Total Debt Service for any fiscal quarter to be less than 3.75:1.00.

     10.2.  Leverage Ratio.  Neither HBOC nor the Borrower will, at any time 
during any fiscal quarter, permit the Leverage Ratio to exceed 1.00:1.00.

     10.3.  Minimum Tangible Net Worth.  Neither HBOC nor the Borrower will 
permit Consolidated Tangible Net Worth at the end of any fiscal quarter to be 
less than the sum of (a) ninety percent (90%) of the Consolidated Tangible 
Net Worth of HBOC and its Subsidiaries as of March 31, 1997 plus, on a 
cumulative basis, (b) 75% of positive Consolidated Net Income (which 
calculation shall include any noncash nonrecurring writedowns taken in 
connection with any acquisition accruing after the Closing Date) for each 
fiscal quarter subsequent to March 31, 1997, plus (c) 50%

                                      44

<PAGE>

of the proceeds of any sale by HBOC or any of its Subsidiaries of equity 
securities issued by such Person or warrants or subscription rights for 
equity securities issued by such Person after March 31, 1997; provided, 
however, to the extent HBOC or its Subsidiaries issue any securities to be 
paid as consideration for all or any portion of the purchase price of any 
asset or stock acquired by HBOC or such Subsidiary (the "Equity 
Consideration"), the proceeds of such Equity Consideration shall be excluded 
from this subparagraph (c) to the extent such proceeds were used to purchase 
assets which would not be included in the calculation of Consolidated 
Tangible Net Worth.

     11.  CLOSING CONDITIONS.  

     The obligations of the Banks to make the initial Revolving Credit Loans 
and of the Agent to issue any initial Letters of Credit shall be subject to 
the satisfaction of the following conditions precedent on or prior to the 
date hereof:

      11.1  Loan Documents.  Each of the Loan Documents shall have been duly 
executed and delivered by the respective parties thereto, shall be in full 
force and effect and shall be in form and substance satisfactory to each of 
the Banks. Each Bank shall have received a fully executed copy of each such 
document.

     11.2  Certified Copies of Charter Documents. Each of the Banks shall 
have received from HBOC and the Borrower a copy, certified by a duly 
authorized officer of such Person to be true and complete on the Closing 
Date, of each of (a) its charter or other incorporation documents as in 
effect on such date of certification, and (b) its by-laws as in effect on 
such date.

     11.3  Corporate Action.  All corporate action necessary for the valid 
execution, delivery and performance by HBOC and the Borrower of this Credit 
Agreement and the other Loan Documents to which it is or is to become a party 
shall have been duly and effectively taken, and evidence thereof satisfactory 
to the Banks shall have been provided to each of the Banks.

     11.4  Incumbency Certificate.  Each of the Banks shall have received 
from HBOC and the Borrower an incumbency certificate, dated as of the Closing 
Date, signed by a duly authorized officer of HBOC and the Borrower, and 
giving the name and bearing a specimen signature of each individual who shall 
be authorized: (a) to sign, in the name and on behalf of each of HBOC and the 
Borrower, each of the Loan Documents and Security Documents to which HBOC and 
the Borrower is or is to become a party; (b) in the case of the Borrower, to 
make Loan Requests and Conversion Requests and to apply for Letters of 
Credit; and (c) to give notices and to take other action on its behalf under 
the Loan Documents.

     11.5.  Certificates of Insurance.  The Agent shall have received a 
certificate of insurance from an independent insurance broker dated as of or 
prior to the Closing Date, identifying insurers, types of insurance, 
insurance limits, and policy terms.

                                      45
<PAGE>

     11.6  Solvency Certificate.   Each of the Banks shall have received an 
officer's certificate of HBOC and the Borrower dated as of the Closing Date 
as to the solvency of HBOC, the Borrower and their Subsidiaries on a 
consolidated basis following the consummation of the transactions 
contemplated herein and in form and substance satisfactory to the Banks.

     11.7  Opinion of Counsel.  Each of the Banks and the Agent shall have 
received a favorable legal opinion addressed to the Banks and the Agent, 
dated as of the Closing Date, in form and substance satisfactory to the Banks 
and the Agent, from:

          (a)  internal counsel to the Borrower and HBOC as to
     corporate matters; and

          (b)  external counsel to HBOC and the Borrower.

     11.8.  Payment of Fees.  The Borrower shall have paid to the Banks or 
the Agent, as appropriate, the fee pursuant to Section 5.1 and the letter 
referenced therein.

     11.9  Disbursement Instructions.  The Agent shall have received 
disbursement instructions from the Borrower with respect to the proceeds of 
the initial Revolving Credit Loan.

     12.  CONDITIONS TO ALL BORROWINGS.  

     The obligations of the Banks to make any Revolving Credit Loan and of 
the Agent to issue, extend or renew any Letter of Credit, in each case 
whether on or after the Closing Date, shall also be subject to the 
satisfaction of the following conditions precedent:

     12.1.  Representations True; No Event of Default.  Each of the 
representations and warranties of any of HBOC, the Borrower and their 
Subsidiaries contained in this Credit Agreement, the other Loan Documents or 
in any document or instrument delivered pursuant to or in connection with 
this Credit Agreement shall be true as of the date as of which they were made 
and shall also be true at and as of the time of the making of such Loan or 
the issuance, extension or renewal of any Letter of Credit, with the same 
effect as if made at and as of that time (except to the extent of changes 
resulting from transactions contemplated or permitted by this Credit 
Agreement and the other Loan Documents and changes occurring in the ordinary 
course of business that singly or in the aggregate are not materially 
adverse, and to the extent that such representations and warranties relate 
expressly to an earlier date) and no Default or Event of Default shall have 
occurred and be continuing.  The Agent shall have received a certificate of 
each of HBOC and the Borrower signed by an authorized officer of the Borrower 
to such effect.

     12.2.  No Legal Impediment.  No change shall have occurred in any law or 
regulations thereunder or interpretations thereof that in the reasonable 
opinion of any Bank would make it illegal for such Bank to make such 
Revolving Credit Loan

                                      46
<PAGE>

or to participate in the issuance, extension or renewal of such Letter of 
Credit or in the reasonable opinion of the Agent would make it illegal for 
the Agent to issue, extend or renew such Letter of Credit.

     12.3.  Governmental Regulation.  Each Bank shall have received such 
statements in substance and form reasonably satisfactory to such Bank as such 
Bank shall reasonably require for the purpose of compliance with any 
applicable regulations of the Comptroller of the Currency or the Board of 
Governors of the Federal Reserve System.

     12.4.  Proceedings and Documents.  All proceedings in connection with 
the transactions contemplated by this Credit Agreement, the other Loan 
Documents and all other documents incident thereto shall be reasonably 
satisfactory in substance and in form to the Banks and to the Agent and the 
Agent's Special Counsel, and the Banks, the Agent and such counsel shall have 
received all information and such counterpart originals or certified or other 
copies of such documents as the Agent or any Bank may reasonably request.

     13.  EVENTS OF DEFAULT; ACCELERATION; ETC.  

     13.1  Events of Default and Acceleration.  If any of the following 
events ("Events of Default" or, if the giving of notice or the lapse of time 
or both is required, then, prior to such notice or lapse of time, "Defaults") 
shall occur:

           (a)  the Borrower shall fail to pay any principal of the Revolving 
     Credit Loans or any Reimbursement Obligation when the same shall become 
     due and payable, whether at the stated date of maturity or any 
     accelerated date of maturity or at any other date fixed for payment;

          (b)  the Borrower shall fail to pay any interest on the Revolving 
     Credit Loans, the commitment fee, any Letter of Credit Fee, the Agent's 
     fee, or other sums due hereunder or under any of the other Loan 
     Documents, within (i) three (3) Business Days as to interest and (ii) 
     five (5) Business Days as to fees and other sums, of the date when the 
     same shall become due and payable, whether at the stated date of 
     maturity or any accelerated date of maturity or at any other date fixed 
     for payment;

          (c)  HBOC, the Borrower or any of their Subsidiaries, as applicable 
     shall fail to comply with any of its covenants contained in Sections 8.1 
     (other than those specified in 13.1(a) and (b)), 8.5.1, 8.9, 8.12, 9.1 - 
     9.5 or 10;

          (d)  HBOC, the Borrower or any of any of their Subsidiaries shall 
     fail to perform any term, covenant or agreement contained in Sections 
     8.4 and 8.5.2, 8.5.3 and 8.5.4 for a period of which is the lesser of 
     (i) two (2) Business Days after written notice of such failure has been 
     given to the Borrower by the Agent or (ii) 10 days from the date of 
     noncompliance with such covenant;

                                      47
<PAGE>


          (e)  HBOC, the Borrower or any of their Subsidiaries shall fail to 
     perform any term, covenant or agreement contained herein or in any of 
     the other Loan Documents (other than those specified elsewhere in this 
     Section 13.1) for thirty (30) days after written notice of such failure 
     has been given to the Borrower by the Agent;

          (f)  any representation or warranty of HBOC, the Borrower or any of 
     their Subsidiaries in this Credit Agreement or any of the other Loan 
     Documents or in any other document or instrument delivered pursuant to 
     or in connection with this Credit Agreement shall prove to have been 
     false in any material respect upon the date when made or deemed to have 
     been made or repeated;

          (g)  HBOC, the Borrower or any of their Subsidiaries shall fail to 
     pay at maturity, or within any applicable period of grace, any 
     obligation for borrowed money or credit received or in respect of any 
     Capitalized Leases or Synthetic Leases in excess of $5,000,000 in the 
     aggregate, or fail to observe or perform any term, covenant or agreement 
     contained in any agreement by which it is bound, evidencing or securing 
     borrowed money or credit received or in respect of any Capitalized 
     Leases or Synthetic Leases for such period of time as would permit 
     (assuming the giving of appropriate notice if required) the holder or 
     holders thereof or of any obligations issued thereunder to accelerate 
     the maturity thereof;

          (h)  HBOC, the Borrower or any of their Subsidiaries party to any 
     Loan Document shall make an assignment for the benefit of creditors, or 
     admit in writing its inability to pay or generally fail to pay its debts 
     as they mature or become due, or shall petition or apply for the 
     appointment of a trustee or other custodian, liquidator or receiver of 
     HBOC, the Borrower or any of their Subsidiaries party to any Loan 
     Document or of any substantial part of the assets of the Borrower or any 
     of its Subsidiaries party to any Loan Document or shall commence any 
     case or other proceeding relating to HBOC, the Borrower or any of their 
     Subsidiaries party to any Loan Document under any bankruptcy, 
     reorganization, arrangement, insolvency, readjustment of debt, 
     dissolution or liquidation or similar law of any jurisdiction, now or 
     hereafter in effect, or shall take any action to authorize or in 
     furtherance of any of the foregoing, or if any such petition or 
     application shall be filed or any such case or other proceeding shall be 
     commenced against HBOC, the Borrower or any of their Subsidiaries party 
     to any Loan Document and HBOC, the Borrower or any of their Subsidiaries 
     party to any Loan Document shall indicate its approval thereof, consent 
     thereto or acquiescence therein;

          (i)  a decree or order is entered appointing any such trustee, 
     custodian, liquidator or receiver or adjudicating HBOC, the Borrower or 
     any of their Subsidiaries party to any Loan Document bankrupt or 
     insolvent, or approving a petition in any such case or other proceeding, 
     or a decree or

                                      48
<PAGE>

     order for relief is entered in respect of HBOC, the Borrower or any 
     Subsidiary party to any Loan Document of HBOC or the Borrower in an 
     involuntary case under federal bankruptcy laws as now or hereafter 
     constituted;

          (j)  there shall remain in force, undischarged, unsatisfied and 
     unstayed, for more than thirty days, whether or not consecutive, any 
     final judgment against HBOC, the Borrower or any of their Subsidiaries 
     that, with other outstanding final judgments, undischarged, against 
     HBOC, the Borrower or any of their Subsidiaries exceeds in the aggregate 
     $5,000,000;

          (k)  if any of the Loan Documents shall be cancelled, terminated, 
     revoked or rescinded otherwise than in accordance with the terms thereof 
     or with the express prior written agreement, consent or approval of the 
     Banks, or any action at law, suit or in equity or other legal proceeding 
     to cancel, revoke or rescind any of the Loan Documents shall be 
     commenced by or on behalf of HBOC, the Borrower or any of their 
     Subsidiaries party thereto or any of their respective stockholders, or 
     any court or any other governmental or regulatory authority or agency of 
     competent jurisdiction shall make a determination that, or issue a 
     judgment, order, decree or ruling to the effect that, any one or more of 
     the Loan Documents is illegal, invalid or unenforceable in accordance 
     with the terms thereof;

          (l)  with respect to any Guaranteed Pension Plan, an ERISA 
     Reportable Event shall have occurred and the Majority Banks shall have 
     determined in their reasonable discretion that such event reasonably 
     could be expected to result in liability of HBOC, the Borrower or any of 
     their Subsidiaries to the PBGC or such Guaranteed Pension Plan in an 
     aggregate amount exceeding $5,000,000 and such event in the 
     circumstances occurring reasonably could constitute grounds for the 
     termination of such Guaranteed Pension Plan by the PBGC or for the 
     appointment by the appropriate United States District Court of a trustee 
     to administer such Guaranteed Pension Plan; or a trustee shall have been 
     appointed by the United States District Court to administer such Plan; 
     or the PBGC shall have instituted proceedings to terminate such 
     Guaranteed Pension Plan;

          (m)  HBOC, the Borrower or any of their Subsidiaries shall be 
     enjoined, restrained or in any way prevented by the order of any court 
     or any administrative or regulatory agency from conducting any material 
     part of its business and such order shall continue in effect for more 
     than thirty (30) days;

          (n)  there shall occur any material damage to, or loss, theft or 
     destruction of, any assets, whether or not insured, or any strike, 
     lockout, labor dispute, embargo, condemnation, act of God or public 
     enemy, or other casualty, which in any such case causes, for more than 
     fifteen (15) consecutive days, the cessation or substantial curtailment 
     of revenue

                                      49
<PAGE>

     producing activities at any facility of the Borrower or any of its 
     Subsidiaries if such event or circumstance is not covered by business 
     interruption insurance and could reasonably be expected to have a 
     material adverse effect on the business or financial condition of HBOC, 
     the Borrower and their Subsidiaries, taken as a whole;

          (o)  there shall occur the loss, suspension or revocation of, or 
     failure to renew, any license or permit now held or hereafter acquired 
     by HBOC, the Borrower or any of their Subsidiaries if such loss, 
     suspension, revocation or failure to renew could reasonably be expected 
     to have a material adverse effect on the business or financial condition 
     of HBOC, the Borrower and their Subsidiaries, taken as a whole;

          (p)  HBOC, the Borrower or any of their Subsidiaries shall be 
     indicted for a state or federal crime, or any civil or criminal action 
     shall otherwise have been brought or threatened against HBOC, the 
     Borrower or any of their Subsidiaries, a punishment for which in any 
     such case could include the forfeiture of any assets of the Borrower or 
     such Subsidiary having a fair market value in excess of $5,000,000;  or

          (q)  any person or group of persons (within the meaning of Section 
     13 or 14 of the Securities Exchange Act of 1934, as amended) shall have 
     acquired after the Closing Date beneficial ownership (within the meaning 
     of Rule 13d-3 promulgated by the Securities and Exchange Commission 
     under said Act) of fifty-one percent (51%) or more of the outstanding 
     shares of common stock of HBOC or the Borrower;

then, and in any such event, so long as the same may be continuing, the Agent 
shall upon the request of the Majority Banks by notice in writing to the 
Borrower declare all amounts owing with respect to this Credit Agreement, the 
Revolving Credit Notes and the other Loan Documents and all Reimbursement 
Obligations to be, and they shall thereupon forthwith become, immediately due 
and payable without presentment, demand, protest or other notice of any kind, 
all of which are hereby expressly waived by the Borrower; provided that in 
the event of any Event of Default specified in Sections 13.1(h) or 13.1(i), 
all such amounts shall become immediately due and payable automatically and 
without any requirement of notice from the Agent or any Bank.

     13.2  Termination of Commitments.  If any one or more of the 
Events of Default specified in Section 13.1(h) or Section 13.1(i) shall 
occur, any unused portion of the credit hereunder shall forthwith terminate 
and each of the Banks shall be relieved of all further obligations to make 
Loans to the Borrower and the Agent shall be relieved of all further 
obligations to issue, extend or renew Letters of Credit.  If any other Event 
of Default shall have occurred and be continuing, or if on any Drawdown Date 
or other date for issuing, extending or renewing any Letter of Credit the 
conditions precedent to the making of the Revolving Credit Loans to be made 
on such Drawdown Date or (as the case may be) to issuing, extending or 
renewing such

                                     50
<PAGE>
                                    

Letter of Credit on such other date are not satisfied, the Agent shall upon 
the request of the Majority Banks by notice to the Borrower, terminate the 
unused portion of the credit hereunder, and upon such notice being given such 
unused portion of the credit hereunder shall terminate immediately and each 
of the Banks shall be relieved of all further obligations to make Revolving 
Credit Loans and the Agent shall be relieved of all further obligations to 
issue, extend or renew Letters of Credit.  No termination of the credit 
hereunder shall relieve HBOC, the Borrower or any of their Subsidiaries of 
any of the Obligations.

     13.3.  Remedies.  In case any one or more of the Events of Default shall 
have occurred and be continuing, and whether or not the Banks shall have 
accelerated the maturity of the Revolving Credit Loans pursuant to Section 
13.1, each Bank, if owed any amount with respect to the Revolving Credit 
Loans or the Reimbursement Obligations, may, with the consent of the Majority 
Banks but not otherwise, proceed to protect and enforce its rights by suit in 
equity, action at law or other appropriate proceeding, whether for the 
specific performance of any covenant or agreement contained in this Credit 
Agreement and the other Loan Documents or any instrument pursuant to which 
the Obligations to such Bank are evidenced, including as permitted by 
applicable law the obtaining of the ex parte appointment of a receiver, and, 
if such amount shall have become due, by declaration or otherwise, proceed to 
enforce the payment thereof or any other legal or equitable right of such 
Bank.  No remedy herein conferred upon any Bank or the Agent or the holder of 
any Revolving Credit Note or purchaser of any Letter of Credit Participation 
is intended to be exclusive of any other remedy and each and every remedy 
shall be cumulative and shall be in addition to every other remedy given 
hereunder or now or hereafter existing at law or in equity or by statute or 
any other provision of law.

     13.4.  Distribution of Proceeds.  In the event that, following 
the occurrence or during the continuance of any Default or Event of Default, 
the Agent or any Bank, as the case may be, receives any monies in connection 
with the enforcement of any of its rights under any of the Loan Documents, 
such monies shall be distributed for application as follows:

          (a)  First, to the payment of, or (as the case may be) the 
     reimbursement of the Agent for or in respect of all reasonable costs, 
     expenses, disbursements and losses which shall have been incurred or 
     sustained by the Agent in connection with the collection of such monies 
     by the Agent, for the exercise, protection or enforcement by the Agent 
     of all or any of the rights, remedies, powers and privileges of the 
     Agent under this Credit Agreement or any of the other Loan Documents or 
     in respect of the Collateral or in support of any provision of adequate 
     indemnity to the Agent against any taxes or liens which by law shall 
     have, or may have, priority over the rights of the Agent to such monies;

          (b)  Second, to all other Obligations in such order or preference 
     as the Majority Banks may determine; provided, however, that 
     distributions in

                                    51
<PAGE>

     respect of such obligations shall be made (i) pari passu among 
     Obligations with respect to the Agent's fee payable pursuant to Section 
     5.2 and all other Obligations and (ii) Obligations owing to the Banks 
     with respect to each type of Obligation such as interest, principal, 
     fees and expenses, shall be made among the Banks pro rata; and provided, 
     further, that the Agent may in its discretion make proper allowance to 
     take into account any Obligations not then due and payable;

          (c)  Third, upon payment and satisfaction in full or other 
     provisions for payment in full satisfactory to the Banks and the Agent 
     of all of the Obligations, to the payment of any obligations required to 
     be paid pursuant to Section 9-504(1)(c) of the Uniform Commercial Code 
     of the Commonwealth of Massachusetts; and

          (d)  Fourth, the excess, if any, shall be returned to the Borrower 
     or to such other Persons as are entitled thereto.

     14. SETOFF.  
                                       
     Regardless of the adequacy of any collateral, during the continuance of 
any Event of Default, any deposits or other sums credited by or due from any 
of the Banks to the Borrower and any securities or other property of the 
Borrower in the possession of such Bank may be applied to or set off by such 
Bank against the payment of Obligations and any and all other liabilities, 
direct, or indirect, absolute or contingent, due or to become due, now 
existing or hereafter arising, of the Borrower to such Bank.  Each of the 
Banks agrees with each other Bank that (a) if an amount to be set off is to 
be applied to Indebtedness of the Borrower to such Bank, other than 
Indebtedness evidenced by the Revolving Credit Notes held by such Bank or 
constituting Reimbursement Obligations owed to such Bank, such amount shall 
be applied ratably to such other Indebtedness and to the Indebtedness 
evidenced by all such Revolving Credit Notes held by such Bank or 
constituting Reimbursement Obligations owed to such Bank, and (b) if such 
Bank shall receive from the Borrower, whether by voluntary payment, exercise 
of the right of setoff, counterclaim, cross action, enforcement of the claim 
evidenced by the Revolving Credit Notes held by, or constituting 
Reimbursement Obligations owed to, such Bank by proceedings against the 
Borrower at law or in equity or by proof thereof in bankruptcy, 
reorganization, liquidation, receivership or similar proceedings, or 
otherwise, and shall retain and apply to the payment of the Revolving Credit 
Note or Revolving Credit Notes held by, or Reimbursement Obligations owed to, 
such Bank any amount in excess of its ratable portion of the payments 
received by all of the Banks with respect to the Revolving Credit Notes held 
by, and Reimbursement Obligations owed to, all of the Banks, such Bank will 
make such disposition and arrangements with the other Banks with respect to 
such excess, either by way of distribution, pro tanto assignment of claims, 
subrogation or otherwise as shall result in each Bank receiving in respect of 
the Revolving Credit Notes held by it or Reimbursement Obligations owed it, 
its proportionate payment as contemplated by this Credit Agreement; provided 
that if all or any part of such excess payment is

                                      52
<PAGE>


thereafter recovered from such Bank, such disposition and arrangements shall 
be rescinded and the amount restored to the extent of such recovery, but 
without interest.

     15. THE AGENT.  

     15.1  Authorization.  

          (a)  The Agent is authorized to take such action on behalf of each 
     of the Banks and to exercise all such powers as are hereunder and under 
     any of the other Loan Documents and any related documents delegated to 
     the Agent, together with such powers as are reasonably incident thereto, 
     provided that no duties or responsibilities not expressly assumed herein 
     or therein shall be implied to have been assumed by the Agent.

          (b)  The relationship between the Agent and each of the Banks is 
     that of an independent contractor.  The use of the term "Agent" is for 
     convenience only and is used to describe, as a form of convention, the 
     independent contractual relationship between the Agent and each of the 
     Banks.  Nothing contained in this Credit Agreement nor the other Loan 
     Documents shall be construed to create an agency, trust or other 
     fiduciary relationship between the Agent and any of the Banks.

          (c)  As an independent contractor empowered by the Banks to 
     exercise certain rights and perform certain duties and responsibilities 
     hereunder and under the other Loan Documents, the Agent is nevertheless 
     a "representative" of the Banks, as that term is defined in Article 1 of 
     the Uniform Commercial Code, for purposes of actions for the benefit of 
     the Banks and the Agent with respect to all collateral security and 
     guaranties contemplated by the Loan Documents.  Such actions include the 
     designation of the Agent as "secured party", "mortgagee" or the like on 
     all financing statements and other documents and instruments, whether 
     recorded or otherwise, relating to the attachment, perfection, priority 
     or enforcement of any security interests, mortgages or deeds of trust in 
     collateral security intended to secure the payment or performance of any 
     of the Obligations, all for the benefit of the Banks and the Agent.

     15.2.  Employees and Agents.  The Agent may exercise its powers and 
execute its duties by or through affiliates, employees or agents and shall be 
entitled to take, and to rely on, advice of counsel concerning all matters 
pertaining to its rights and duties under this Credit Agreement and the other 
Loan Documents.  The Agent may utilize the services of such Persons as the 
Agent in its sole discretion may reasonably determine, and all reasonable 
fees and expenses of any such Persons shall be paid by the Borrower.

     15.3  No Liability.  Neither the Agent nor any of its affiliates, 
shareholders, directors, officers or employees nor any other Person assisting 
them in their duties

                                     53
<PAGE>

nor any agent or employee thereof, shall be liable for any waiver, consent or 
approval given or any action taken, or omitted to be taken, in good faith by 
it or them hereunder or under any of the other Loan Documents, or in 
connection herewith or therewith, or be responsible for the consequences of 
any oversight or error of judgment whatsoever, except that the Agent or such 
other Person, as the case may be, may be liable for losses due to its willful 
misconduct or gross negligence.
               

     15.4.  No Representations.  The Agent shall not be responsible for the 
execution or validity or enforceability of this Credit Agreement, the 
Revolving Credit Notes, the Letters of Credit, any of the other Loan 
Documents or any instrument at any time constituting, or intended to 
constitute, collateral security for the Revolving Credit Notes, or for the 
value of any such collateral security or for the validity, enforceability or 
collectability of any such amounts owing with respect to the Revolving Credit 
Notes, or for any recitals or statements, warranties or representations made 
herein or in any of the other Loan Documents or in any certificate or 
instrument hereafter furnished to it by or on behalf of HBOC, the Borrower or 
any of their Subsidiaries, or be bound to ascertain or inquire as to the 
performance or observance of any of the terms, conditions, covenants or 
agreements herein or in any instrument at any time constituting, or intended 
to constitute, collateral security for the Revolving Credit Notes or to 
inspect any of the properties, books or records of HBOC, the Borrower or any 
of their Subsidiaries.  The Agent shall not be bound to ascertain whether any 
notice, consent, waiver or request delivered to it by the Borrower or any 
holder of any of the Revolving Credit Notes shall have been duly authorized 
or is true, accurate and complete.  The Agent has not made nor does it now 
make any representations or warranties, express or implied, nor does it 
assume any liability to the Banks, with respect to the credit worthiness or 
financial conditions of HBOC, the Borrower or any of their Subsidiaries.  
Each Bank acknowledges that it has, independently and without reliance upon 
the Agent or any other Bank, and based upon such information and documents as 
it has deemed appropriate, made its own credit analysis and decision to enter 
into this Credit Agreement.

     15.5.  Payments.  

            15.5.1.  Payments to Agent.  A payment by the Borrower to the 
     Agent hereunder or any of the other Loan Documents for the account of 
     any Bank shall constitute a payment to such Bank.  The Agent agrees 
     promptly to distribute to each Bank such Bank's pro rata share of 
     payments received by the Agent for the account of the Banks except as 
     otherwise expressly provided herein or in any of the other Loan 
     Documents.

            15.5.2.  Distribution by Agent.  If in the opinion of the Agent 
     the distribution of any amount received by it in such capacity 
     hereunder, under the Revolving Credit Notes or under any of the other 
     Loan Documents might involve it in liability, it may refrain from making 
     distribution until its right to make distribution shall have been 
     adjudicated by a court of competent

                                     54
<PAGE>


     jurisdiction.  If a court of competent jurisdiction shall adjudge that 
     any amount received and distributed by the Agent is to be repaid, each 
     Person to whom any such distribution shall have been made shall either 
     repay to the Agent its proportionate share of the amount so adjudged to 
     be repaid or shall pay over the same in such manner and to such Persons 
     as shall be determined by such court.

            15.5.3.  Delinquent Banks.  Notwithstanding anything to the 
     contrary contained in this Credit Agreement or any of the other Loan 
     Documents, any Bank that fails (a) to make available to the Agent its 
     pro rata share of any Revolving Credit Loan or to purchase any Letter of 
     Credit Participation or (b) to comply with the provisions of Section 14 
     with respect to making dispositions and arrangements with the other 
     Banks, where such Bank's share of any payment received, whether by 
     setoff or otherwise, is in excess of its pro rata share of such payments 
     due and payable to all of the Banks, in each case as, when and to the 
     full extent required by the provisions of this Credit Agreement, shall 
     be deemed delinquent (a "Delinquent Bank") and shall be deemed a 
     Delinquent Bank until such time as such delinquency is satisfied. A 
     Delinquent Bank shall be deemed to have assigned any and all payments 
     due to it from the Borrower, whether on account of outstanding Revolving 
     Credit Loans, Unpaid Reimbursement Obligations, interest, fees or 
     otherwise, to the remaining nondelinquent Banks for application to, and 
     reduction of, their respective pro rata shares of all outstanding 
     Revolving Credit Loans and Unpaid Reimbursement Obligations.  The 
     Delinquent Bank hereby authorizes the Agent to distribute such payments 
     to the nondelinquent Banks in proportion to their respective pro rata 
     shares of all outstanding Revolving Credit Loans and Unpaid 
     Reimbursement Obligations.  A Delinquent Bank shall be deemed to have 
     satisfied in full a delinquency when and if, as a result of application 
     of the assigned payments to all outstanding Revolving Credit Loans and 
     Unpaid Reimbursement Obligations of the nondelinquent Banks, the Banks' 
     respective pro rata shares of all outstanding Revolving Credit Loans and 
     Unpaid Reimbursement Obligations have returned to those in effect 
     immediately prior to such delinquency and without giving effect to the 
     nonpayment causing such delinquency.

     15.6.  Holders of Revolving Credit Notes.  The Agent may deem and treat 
the payee of any Revolving Credit Note or the purchaser of any Letter of 
Credit Participation as the absolute owner or purchaser thereof for all 
purposes hereof until it shall have been furnished in writing with a 
different name by such payee or by a subsequent holder, assignee or 
transferee.

     15.7.  Indemnity.  The Banks ratably agree hereby to indemnify and hold 
harmless the Agent and its affiliates from and against any and all claims, 
actions and suits (whether groundless or otherwise), losses, damages, costs, 
expenses (including any expenses for which the Agent has not been reimbursed 
by the Borrower as required by Section 16), and liabilities of every nature 
and character arising

                                      55
                  
<PAGE>

out of or related to this Credit Agreement, the Revolving Credit Notes, or 
any of the other Loan Documents or the transactions contemplated or evidenced 
hereby or thereby, or the Agent's actions taken hereunder or thereunder, 
except to the extent that any of the same shall be directly caused by the 
Agent's willful misconduct or gross negligence.

      15.8. Agent as Bank.  In its individual capacity, BKB shall have the 
same obligations and the same rights, powers and privileges in respect to its 
Commitment and the Revolving Credit Loans made by it, and as the holder of 
any of the Revolving Credit Notes and as the purchaser of any Letter of 
Credit Participations, as it would have were it not also the Agent.

      15.9  Resignation.  The Agent may resign at any time by giving sixty 
(60) days prior written notice thereof to the Banks and the Borrower.  Upon 
any such resignation, the Majority Banks shall have the right to appoint a 
successor Agent.  Unless a Default or Event of Default shall have occurred 
and be continuing, such successor Agent shall be reasonably acceptable to the 
Borrower. If no successor Agent shall have been so appointed by the Majority 
Banks and shall have accepted such appointment within thirty (30) days after 
the retiring Agent's giving of notice of resignation, then the retiring Agent 
may, on behalf of the Banks, appoint a successor Agent, which shall be a 
financial institution having a rating of not less than A or its equivalent by 
Standard & Poor's Corporation.  Upon the acceptance of any appointment as 
Agent hereunder by a successor Agent, such successor Agent shall thereupon 
succeed to and become vested with all the rights, powers, privileges and 
duties of the retiring Agent, and the retiring Agent shall be discharged from 
its duties and obligations hereunder.  After any retiring Agent's 
resignation, the provisions of this Credit Agreement and the other Loan 
Documents shall continue in effect for its benefit in respect of any actions 
taken or omitted to be taken by it while it was acting as Agent.

     15.10. Notification of Defaults and Events of Default.  Each Bank hereby 
agrees that, upon learning of the existence of a Default or an Event of 
Default, it shall promptly notify the Agent thereof.  The Agent hereby agrees 
that upon receipt of any notice under this Section 16.10, or upon learning of 
the existence of a Default or an Event of Default, it shall promptly notify 
the other Banks of the existence of such Default or Event of Default.

     16 EXPENSES.  
                                       
     The Borrower agrees to pay (a) the reasonable costs incurred by the 
Agent of producing and reproducing this Credit Agreement, the other Loan 
Documents and the other agreements and instruments mentioned herein, (b) any 
taxes (including any interest and penalties in respect thereto) payable by 
the Agent or any of the Banks (other than taxes based upon the Agent's or any 
Bank's net income) on or with respect to the transactions contemplated by 
this Credit Agreement (the Borrower hereby agreeing to indemnify the Agent 
and each Bank with respect thereto), (c) the reasonable fees, expenses and 
disbursements of the Agent's Special

                                     56
<PAGE>

Counsel or any local counsel to the Agent incurred in connection with the 
preparation, administration or interpretation of the Loan Documents and other 
instruments mentioned herein, each closing hereunder, and amendments, 
modifications, approvals, consents or waivers hereto or hereunder, (d) the 
reasonable fees, expenses and disbursements of the Agent incurred by the 
Agent in connection with the preparation, administration or interpretation of 
the Loan Documents and other instruments mentioned herein; (e) all reasonable 
out-of-pocket expenses (including without limitation reasonable attorneys' 
fees and costs, which attorneys may be employees of any Bank or the Agent, 
and reasonable consulting, accounting, appraisal, investment banking and 
similar professional fees and charges) incurred by any Bank or the Agent in 
connection with (i) the enforcement of or preservation of rights under any of 
the Loan Documents against HBOC, the Borrower or any of their Subsidiaries or 
the administration thereof after the occurrence of a Default or Event of 
Default and (ii) any litigation, proceeding or dispute whether arising 
hereunder or otherwise, in any way related to any Bank's or the Agent's 
relationship with HBOC, the Borrower or any of their Subsidiaries and (f) all 
reasonable fees, expenses and disbursements of the Agent incurred in 
connection with UCC searches made prior to the Closing Date.  The covenants 
of this Section 16. shall survive payment or satisfaction of all other 
Obligations.

     17.  INDEMNIFICATION.  

     The Borrower agrees to indemnify and hold harmless the Agent, its 
affiliates and the Banks from and against any and all claims, actions and 
suits whether groundless or otherwise, and from and against any and all 
liabilities, losses, damages and expenses of every nature and character 
arising out of this Credit Agreement or any of the other Loan Documents or 
the transactions contemplated hereby including, without limitation, (a) any 
actual or proposed use by the Borrower or any of their Subsidiaries of the 
proceeds of any of the Revolving Credit Loans or Letters of Credit, (b) HBOC, 
the Borrower or any of their Subsidiaries entering into or performing this 
Credit Agreement or any of the other Loan Documents or (c) with respect to 
HBOC, the Borrower and their Subsidiaries and their respective properties and 
assets, the violation of any Environmental Law, the presence, disposal, 
escape, seepage, leakage, spillage, discharge, emission, release or 
threatened release of any Hazardous Substances or any action, suit, 
proceeding or investigation brought or threatened with respect to any 
Hazardous Substances (including, but not limited to, claims with respect to 
wrongful death, personal injury or damage to property), in each case 
including, without limitation, the reasonable fees and disbursements of 
counsel and allocated costs of internal counsel incurred in connection with 
any such investigation, litigation or other proceeding.  The Borrower shall 
not be required to indemnify the Agent or any Bank for any loss or damage 
arising from the gross negligence or willful misconduct of such party seeking 
indemnification.  In litigation, or the preparation therefor, the Banks and  
the Agent shall be entitled to select their own counsel and, in addition to 
the foregoing indemnity, the Borrower agrees to pay promptly the reasonable 
fees and expenses of such counsel.  If, and to the extent that the 
obligations of the Borrower under this Section 18 are unenforceable for any 
reason, the Borrower agrees to make the

                                     57
<PAGE>

maximum contribution to the payment in satisfaction of such obligations which 
is permissible under applicable law.  The covenants contained in this Section 
18 shall survive payment or satisfaction in full of all other Obligations.

     18.  SURVIVAL OF COVENANTS, ETC.  

     All covenants, agreements, representations and warranties made herein, 
in the Revolving Credit Notes, in any of the other Loan Documents or in any 
documents or other papers delivered by or on behalf of HBOC, the Borrower or 
any of their Subsidiaries pursuant hereto shall be deemed to have been relied 
upon by the Banks and the Agent, notwithstanding any investigation heretofore 
or hereafter made by any of them, and shall survive the making by the Banks 
of any of the Revolving Credit Loans and the issuance, extension or renewal 
of any Letters of Credit, as herein contemplated, and shall continue in full 
force and effect so long as any Letter of Credit or any amount due under this 
Credit Agreement or the Revolving Credit Notes or any of the other Loan 
Documents remains outstanding or any Bank has any obligation to make any 
Revolving Credit Loans or the Agent has any obligation to issue, extend or 
renew any Letter of Credit, and for such further time as may be otherwise 
expressly specified in this Credit Agreement.  All statements contained in 
any certificate or other paper delivered to any Bank or the Agent at any time 
by or on behalf HBOC, of the Borrower or any of their Subsidiaries pursuant 
hereto or in connection with the transactions contemplated hereby shall 
constitute representations and warranties by HBOC, the Borrower or such 
Subsidiary hereunder.

     19. ASSIGNMENT AND PARTICIPATION.  

     19.1.  Conditions to Assignment by Banks.  Except as provided herein, 
each Bank may assign to one or more Eligible Assignees all or a portion of 
its interests, rights and obligations under this Credit Agreement (including 
all or a portion of its Commitment Percentage and Commitment and the same 
portion of the Revolving Credit Loans at the time owing to it, the Revolving 
Credit Notes held by it and its participating interest in the risk relating 
to any Letters of Credit); provided that (i) each of the Agent and the 
Borrower (unless a Default or an Event of Default has occurred and is 
continuing) shall have given its prior written consent to such assignment, 
which consent will not be unreasonably withheld, provided, however, if such 
Bank assigns to its affiliate, no consent is required, (ii) each such 
assignment shall be of a constant, and not a varying, percentage of all the 
assigning Bank's rights and obligations under this Credit Agreement, (iii) 
each assignment shall be in an amount equal to $5,000,000 or a whole multiple 
of $1,000,000 in excess thereof and (iv) the parties to such assignment shall 
execute and deliver to the Agent, for recording in the Register (as 
hereinafter defined), an Assignment and Acceptance, substantially in the form 
of Exhibit D hereto (an "Assignment and Acceptance"), together with any  
Revolving Credit Notes subject to such assignment.  Upon such execution, 
delivery, acceptance and recording, from and after the effective date 
specified in each Assignment and Acceptance, which effective date shall be at 
least five (5) Business Days after the execution thereof, (i) the assignee 
thereunder shall

                                     58
<PAGE>

be a party hereto and, to the extent provided in such Assignment and 
Acceptance, have the rights and obligations of a Bank hereunder, and (ii) the 
assigning Bank shall, to the extent provided in such assignment and upon 
payment to the Agent of the registration fee referred to in Section 19.3, be 
released from its obligations under this Credit Agreement. 

      19.2. Certain Representations and Warranties; Limitations; Covenants.  
By executing and delivering an Assignment and Acceptance, the parties to the 
assignment thereunder confirm to and agree with each other and the other 
parties hereto as follows:  

          (a)  other than the representation and warranty that it is the 
     legal and beneficial owner of the interest being assigned thereby free 
     and clear of any adverse claim, the assigning Bank makes no 
     representation or warranty, express or implied, and assumes no 
     responsibility with respect to any statements, warranties or 
     representations made in or in connection with this Credit Agreement or 
     the execution, legality, validity, enforceability, genuineness, 
     sufficiency or value of this Credit Agreement, the other Loan Documents 
     or any other instrument or document furnished pursuant hereto or the 
     attachment, perfection or priority of any security interest or mortgage,

          (b)  the assigning Bank makes no representation or warranty and 
     assumes no responsibility with respect to the financial condition of 
     HBOC, the Borrower and their Subsidiaries or any other Person primarily 
     or secondarily liable in respect of any of the Obligations, or the 
     performance or observance by HBOC, the Borrower and their Subsidiaries 
     or any other Person primarily or secondarily liable in respect of any of 
     the Obligations of any of their obligations under this Credit Agreement 
     or any of the other Loan Documents or any other instrument or document 
     furnished pursuant hereto or thereto;

          (c)  such assignee confirms that it has received a copy of this 
     Credit Agreement, together with copies of the most recent financial 
     statements referred to in Section 7.4 and Section 8.4 and such other 
     documents and information as it has deemed appropriate to make its own 
     credit analysis and decision to enter into such Assignment and 
     Acceptance;

          (d)  such assignee will, independently and without reliance upon 
     the assigning Bank, the Agent or any other Bank and based on such 
     documents and information as it shall deem appropriate at the time, 
     continue to make its own credit decisions in taking or not taking action 
     under this Credit Agreement;

          (e)  such assignee represents and warrants that it is an Eligible 
     Assignee;

                                      59
<PAGE>

          (f)  such assignee appoints and authorizes the Agent to take such 
     action as agent on its behalf and to exercise such powers under this 
     Credit Agreement and the other Loan Documents as are delegated to the 
     Agent by the terms hereof or thereof, together with such powers as are 
     reasonably incidental thereto;

          (g)  such assignee agrees that it will perform in accordance with 
     their terms all of the obligations that by the terms of this Credit 
     Agreement are required to be performed by it as a Bank;

          (h)  such assignee represents and warrants that it is legally 
     authorized to enter into such Assignment and Acceptance; and

          (i)  such assignee acknowledges that it has made arrangements with 
     the assigning Bank satisfactory to such assignee with respect to its pro 
     rata share of Letter of Credit Fees in respect of outstanding Letters of 
     Credit.

     19.3.  Register.  The Agent shall maintain a copy of each Assignment and 
Acceptance delivered to it and a register or similar list (the "Register") 
for the recordation of the names and addresses of the Banks and the 
Commitment Percentage of, and principal amount of the Revolving Credit Loans 
owing to and Letter of Credit Participations purchased by, the Banks from 
time to time. The entries in the Register shall be conclusive, in the absence 
of manifest error, and the Borrower, the Agent and the Banks may treat each 
Person whose name is recorded in the Register as a Bank hereunder for all 
purposes of this Credit Agreement.  The Register shall be available for 
inspection by the Borrower and the Banks at any reasonable time and from time 
to time upon reasonable prior notice. Upon each such recordation, the 
assigning Bank agrees to pay to the Agent a registration fee in the sum of 
$3,000, provided, however, if such Bank assigns to its affiliate, no 
registration fee is required.

     19.4  New Revolving Credit Notes.  Upon its receipt of an Assignment and 
Acceptance executed by the parties to such assignment, together with each 
Revolving Credit Note subject to such assignment, the Agent shall (a) record 
the information contained therein in the Register, and (b) give prompt notice 
thereof to the Borrower and the Banks (other than the assigning Bank). Within 
five (5) Business Days after receipt of such notice, the Borrower, at its own 
expense, shall execute and deliver to the Agent, in exchange for each 
surrendered Revolving Credit Note, a new Revolving Credit Note to the order 
of such Eligible Assignee in an amount equal to the amount assumed by such 
Eligible Assignee pursuant to such Assignment and Acceptance and, if the 
assigning Bank has retained some portion of its obligations hereunder, a new 
Revolving Credit Note to the order of the assigning Bank in an amount equal 
to the amount retained by it hereunder.  Such new Revolving Credit Notes 
shall provide that they are replacements for the surrendered Revolving Credit 
Notes, shall be in an aggregate principal amount equal to the aggregate 
principal amount of the surrendered Revolving Credit Notes, shall be dated 
the effective date of such in Assignment and Acceptance and shall otherwise

                                      60
<PAGE>

be substantially the form of the assigned Revolving Credit Notes.  Within 
five (5) days of issuance of any new Revolving Credit Notes pursuant to this 
Section 19.4, the Borrower shall deliver an opinion of counsel, addressed to 
the Banks and the Agent, relating to the due authorization, execution and 
delivery of such new Revolving Credit Notes and the legality, validity and 
binding effect thereof, in form and substance satisfactory to the Banks.  The 
surrendered Revolving Credit Notes shall be cancelled and returned to the 
Borrower.

     19.5.  Participations.  Each Bank may sell participations to one or more 
banks or other entities in all or a portion of such Bank's rights and 
obligations under this Credit Agreement and the other Loan Documents; 
provided that (a) each such participation shall be in an amount of not less 
than $5,000,000, (b) any such sale or participation shall not affect the 
rights and duties of the selling Bank hereunder to the Borrower and (c) the 
only rights granted to the participant pursuant to such participation 
arrangements with respect to waivers, amendments or modifications of the Loan 
Documents shall be the rights to approve waivers, amendments or modifications 
that would reduce the principal of or the interest rate on any Revolving 
Credit Loans, extend the term or increase the amount of the Commitment of 
such Bank as it relates to such participant, reduce the amount of any 
commitment fees or Letter of Credit Fees to which such participant is 
entitled or extend any regularly scheduled payment date for principal or 
interest.

      19.6. Disclosure.  HBOC and the Borrower agrees any Bank or its 
affiliate may disclose information obtained by such Bank pursuant to this 
Credit Agreement to assignees or participants and potential assignees or 
participants hereunder in accordance with and subject to the provisions of 
Section 29.

      19.7. Assignee or Participant Affiliated with the Borrower. If any 
assignee Bank is an Affiliate of HBOC or the Borrower, then any such assignee 
Bank shall have no right to vote as a Bank hereunder or under any of the 
other Loan Documents for purposes of granting consents or waivers or for 
purposes of agreeing to amendments or other modifications to any of the Loan 
Documents or for purposes of making requests to the Agent pursuant to Section 
13.1 or Section 13.2, and the determination of the Majority Banks shall for 
all purposes of this Agreement and the other Loan Documents be made without 
regard to such assignee Bank's interest in any of the Revolving Credit Loans. 
 If any Bank sells a participating interest in any of the Revolving Credit 
Loans or Reimbursement Obligations to a participant, and such participant is 
HBOC, the Borrower or an Affiliate of HBOC or the Borrower, then such 
transferor Bank shall promptly notify the Agent of the sale of such 
participation.  A transferor Bank shall have no right to vote as a Bank 
hereunder or under any of the other Loan Documents for purposes of granting 
consents or waivers or for purposes of agreeing to amendments or 
modifications to any of the Loan Documents or for purposes of making requests 
to the Agent pursuant to Section 13.1 or Section 13.2 to the extent that such 
participation is beneficially owned by HBOC or the Borrower or any Affiliate 
of HBOC or the Borrower, and the determination of the Majority Banks shall 
for all purposes of this Agreement and

                                      61
<PAGE>

the other Loan Documents be made without regard to the interest of such 
transferor Bank in the Revolving Credit Loans to the extent of such 
participation.

     19.8  Miscellaneous Assignment Provisions.  Any assigning Bank shall 
retain its rights to be indemnified pursuant to Section 16 with respect to 
any claims or actions arising prior to the date of such assignment.  If any 
assignee Bank is not incorporated under the laws of the United States of 
America or any state thereof, it shall, prior to the date on which any 
interest or fees are payable hereunder or under any of the other Loan 
Documents for its account, deliver to the Borrower and the Agent 
certification as to its exemption from deduction or withholding of any United 
States federal income taxes.  If any Reference Bank transfers all of its 
interest, rights and obligations under this Credit Agreement, the Agent 
shall, in consultation with the Borrower and with the consent of the Borrower 
and the Majority Banks, appoint another Bank to act as a Reference Bank 
hereunder.  Anything contained in this Section 19 to the contrary 
notwithstanding, any Bank may at any time pledge all or any portion of its 
interest and rights under this Credit Agreement (including all or any portion 
of its Revolving Credit Notes) to any of the twelve Federal Reserve Banks 
organized under Section 4 of the Federal Reserve Act, 12 U.S.C. Section 341.  
No such pledge or the enforcement thereof shall release the pledgor Bank from 
its obligations hereunder or under any of the other Loan Documents.

     19.9.  Assignment by Borrower.  The Borrower shall not assign or 
transfer any of its rights or obligations under any of the Loan Documents 
without the prior written consent of each of the Banks.

     20.  NOTICES, ETC.  

     Except as otherwise expressly provided in this Credit Agreement, all 
notices and other communications made or required to be given pursuant to 
this Credit Agreement or the Revolving Credit Notes or any Letter of Credit 
Applications shall be in writing and shall be delivered in hand, mailed by 
United States registered or certified first class mail, postage prepaid, sent 
by overnight courier, or sent by telegraph, telecopy, facsimile or telex and 
confirmed by delivery via courier or postal service, addressed as follows:

          (a)  if to HBOC or the Borrower, at 301 Perimeter Center North, 
     Atlanta, GA 30346, Attention: Jay Gilbertson, Chief Financial Officer, 
     or at such other address for notice as the Borrower shall last have 
     furnished in writing to the Person giving the notice;

          (b)  if to the Agent, at 100 Federal Street, 01-08-06, Boston, 
     Massachusetts 02110, USA, Attention: Jay L. Massimo, Vice President, or 
     such other address for notice as the Agent shall last have furnished in 
     writing to the Person giving the notice; and

                                      62
<PAGE>

          (c)  if to any Bank, at such Bank's address set forth on Schedule 1 
     hereto, or such other address for notice as such Bank shall have last 
     furnished in writing to the Person giving the notice.

     Any such notice or demand shall be deemed to have been duly given or 
made and to have become effective (a) if delivered by hand, overnight courier 
or facsimile to a responsible officer of the party to which it is directed, 
at the time of the receipt thereof by such officer or the sending of such 
facsimile and (b) if sent by registered or certified first-class mail, 
postage prepaid, on the third Business Day following the mailing thereof.

     21.  GOVERNING LAW.  

     THIS CREDIT AGREEMENT AND, EXCEPT AS OTHERWISE SPECIFICALLY PROVIDED 
THEREIN, EACH OF THE OTHER LOAN DOCUMENTS ARE CONTRACTS UNDER THE LAWS OF THE 
COMMONWEALTH OF MASSACHUSETTS AND SHALL FOR ALL PURPOSES BE CONSTRUED IN 
ACCORDANCE WITH AND GOVERNED BY THE LAWS OF SAID COMMONWEALTH OF 
MASSACHUSETTS (EXCLUDING THE LAWS APPLICABLE TO CONFLICTS OR CHOICE OF LAW).  
HBOC AND THE BORROWER AGREE THAT ANY SUIT FOR THE ENFORCEMENT OF THIS CREDIT 
AGREEMENT OR ANY OF THE OTHER LOAN DOCUMENTS MAY BE BROUGHT IN THE COURTS OF 
THE COMMONWEALTH OF MASSACHUSETTS OR ANY FEDERAL COURT SITTING THEREIN AND 
CONSENT TO THE NONEXCLUSIVE JURISDICTION OF SUCH COURT AND SERVICE OF PROCESS 
IN ANY SUCH SUIT BEING MADE UPON HBOC AND THE BORROWER BY MAIL AT THE ADDRESS 
SPECIFIED IN Section 20.  HBOC AND THE BORROWER HEREBY WAIVE ANY OBJECTION 
THAT THEY MAY NOW OR HEREAFTER HAVE TO THE VENUE OF ANY SUCH SUIT OR ANY SUCH 
COURT OR THAT SUCH SUIT IS BROUGHT IN AN INCONVENIENT COURT.

     22. HEADINGS.  

     The captions in this Credit Agreement are for convenience of reference 
only and shall not define or limit the provisions hereof.

     23.  COUNTERPARTS.  

     This Credit Agreement and any amendment hereof may be executed in 
several counterparts and by each party on a separate counterpart, each of 
which when executed and delivered shall be an original, and all of which 
together shall constitute one instrument.  In proving this Credit Agreement 
it shall not be necessary to produce or account for more than one such 
counterpart signed by the party against whom enforcement is sought. 

                                     63
<PAGE>

     24.  ENTIRE AGREEMENT, ETC.  

     The Loan Documents and any other documents executed in connection 
herewith or therewith express the entire understanding of the parties with 
respect to the transactions contemplated hereby. Neither this Credit 
Agreement nor any term hereof may be changed, waived, discharged or 
terminated, except as provided in Section 26.

     25.  WAIVER OF JURY TRIAL.  

     The Agent, the Banks, HBOC and the Borrower hereby waive their right to 
a jury trial with respect to any action or claim arising out of any dispute 
in connection with this Credit Agreement, the Revolving Credit Notes or any 
of the other Loan Documents, any rights or obligations hereunder or 
thereunder or the performance of which rights and obligations.  Except as 
prohibited by law, each of the Agent, the Banks, HBOC and the Borrower hereby 
waives any right it may have to claim or recover in any litigation referred 
to in the preceding sentence any special, exemplary, punitive or 
consequential damages or any damages other than, or in addition to, actual 
damages.  Each of the Agent, the Banks, HBOC and the Borrower (a) certifies 
that no representative, agent or attorney of any other party hereto has 
represented, expressly or otherwise, that any other party hereto would not, 
in the event of litigation, seek to enforce the foregoing waivers and (b) 
acknowledges that the other parties have been induced to enter into this 
Credit Agreement, the other Loan Documents to which it is a party by, among 
other things, the waivers and certifications contained herein.

     26.  CONSENTS, AMENDMENTS, WAIVERS, ETC.  

     Any consent or approval required or permitted by this Credit Agreement 
to be given by all of the Banks may be given, and any term of this Credit 
Agreement, the other Loan Documents or any other instrument related hereto or 
mentioned herein may be amended, and the performance or observance by HBOC, 
the Borrower or any of their Subsidiaries of any terms of this Credit 
Agreement, the other Loan Documents or such other instrument or the 
continuance of any Default or Event of Default may be waived (either 
generally or in a particular instance and either retroactively or 
prospectively) with, but only with, the written consent of the Borrower and 
the written consent of the Majority Banks. Notwithstanding the foregoing, the 
rate of interest on the Revolving Credit Notes (other than interest accruing 
pursuant to Section 5.11.2 following the effective date of any waiver by the 
Majority Banks of the Default or Event of Default relating thereto), the term 
of the Revolving Credit Notes, the amount of the Commitments of the Banks, 
and the amount of commitment fee or Letter of Credit Fees hereunder may not 
be changed without the written consent of the Borrower and the written 
consent of each Bank affected thereby; the definition of Majority Banks may 
not be amended without the written consent of all of the Banks; and the 
amount of the Agent's Fee or any Letter

                                      64
<PAGE>

of Credit Fees payable for the Agent's account and Section 15 may not be 
amended without the written consent of the Agent. No waiver shall extend to 
or affect any obligation not expressly waived or impair any right consequent 
thereon.  No course of dealing or delay or omission on the part of the Agent 
or any Bank in exercising any right shall operate as a waiver thereof or 
otherwise be prejudicial thereto.  No notice to or demand upon HBOC or the 
Borrower shall entitle HBOC or the Borrower to other or further notice or 
demand in similar or other circumstances.

     27.  SEVERABILITY.  

     The provisions of this Credit Agreement are severable and if any one 
clause or provision hereof shall be held invalid or unenforceable in whole or 
in part in any jurisdiction, then such invalidity or unenforceability shall 
affect only such clause or provision, or part thereof, in such jurisdiction, 
and shall not in any manner affect such clause or provision in any other 
jurisdiction, or any other clause or provision of this Credit Agreement in 
any jurisdiction.

      28.  TRANSITIONAL ARRANGEMENTS.

      28.1. Original Credit Agreement Superseded.  This Credit Agreement 
shall on the Closing Date supersede the Original Credit Agreement in its 
entirety, except as provided in this Section 28.  On the Closing Date, the 
rights and obligations of the parties evidenced by the Original Credit 
Agreement shall be evidenced by the Credit Agreement and other Loan 
Documents, the "Revolving Credit Loans" as defined in the Original Credit 
Agreement shall be Revolving Credit Loans as defined herein.

      28.2. Return and Cancellation of Revolving Credit Notes.  As soon as 
reasonably practicable after its receipt of its Revolving Credit Note 
hereunder on the Closing Date, each of the Banks will promptly return to the 
Borrower, marked "Substituted" or "Cancelled", as the case may be, any notes 
of the Borrower held by the Banks pursuant to the Original Credit Agreement.

      28.3 Interest and Fees Under Superseded Agreement.  All interest and 
fees and expenses, if any, owing or accruing under or in respect of the 
Original Credit Agreement through the Closing Date shall be calculated as of 
the Closing Date (prorated in the case of any fractional periods), and shall 
be paid in accordance with the method, and on the dates, specified in the 
Original Credit Agreement, as if the Original Credit Agreement were still in 
effect.  Commencing on the Closing Date, the commitment fees shall be payable 
by the Borrower to the Agent for the account of the Banks in accordance with 
Section 2.2.

29.  CONFIDENTIALITY.  Each Bank agrees to exercise reasonable efforts to 
keep any information delivered or made available by HBOC or the Borrower to 
it confidential from anyone other than persons employed or retained by such 
Bank, including legal counsel, who are or are expected to become engaged in 
evaluating, approving, structuring or administering the Revolving Credit 
Loans; provided,

                                      65
<PAGE>

however that nothing herein shall prevent any Bank from disclosing such 
information (a) to its affiliates or any other Bank, (b) upon the order of 
any court or administrative agency, (c) upon the request or demand of any 
regulatory agency or authority having jurisdiction over such Bank, (d) which 
has been publicly disclosed by or on behalf of HBOC or the Borrower, (e) to 
the extent reasonably required in connection with any litigation to which the 
Agent, any bank or their respective affiliates may be a party, (f) to the 
extent reasonably required in connection with any audits or accountings and 
(g) to any actual or proposed participant, assignee or other transferee of 
all or part of its rights hereunder which has agreed in writing to be bound 
by the provisions of this Section 29; provided, that, should disclosure of 
any such confidential information be required by virtue of either clause (b) 
or (c) of the immediately preceding sentence, any relevant Bank shall 
promptly notify HBOC and the Borrower as to allow HBOC and the Borrower to 
seek a protective order or to take any other appropriate action; provided, 
further, that, no Bank shall be required to delay compliance with any 
directive to disclose any such information so as to allow HBOC and the 
Borrower to effect any such action.
               
                     [Remainder of Page Intentionally Left Blank] 













                                     66
<PAGE>



     IN WITNESS WHEREOF, the undersigned have duly executed this Amended and 
Restated Revolving Credit Agreement as a sealed instrument as of the date first 
set forth above.

                                       HBO & COMPANY OF GEORGIA



                                       By: ------------------------------------
                                           Name:
                                           Title:



                                       HBO & COMPANY



                                       By: ------------------------------------
                                           Name:
                                           Title:



                                       BANKBOSTON, N.A., individually and
                                       as Agent



                                       By: ------------------------------------
                                           Name:
                                           Title:



                                       NATIONSBANK OF TEXAS, N.A.



                                       By: ------------------------------------
                                           Name:
                                           Title:



                                     67

<PAGE>
                                                                      EXHIBIT 11
 
                                 HBO & COMPANY
 
               COMPUTATION OF EARNINGS PER SHARE OF COMMON STOCK
           FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 1997 AND 1996
                    (000 OMITTED EXCEPT FOR PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                               FOR THE THREE MONTHS    FOR THE SIX MONTHS
                                                                  ENDED JUNE 30,         ENDED JUNE 30,
                                                              ----------------------  ---------------------
<S>                                                           <C>         <C>         <C>         <C>
                                                                 1997        1996        1997       1996
                                                              ----------  ----------  ----------  ---------
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING........      98,529      95,603      97,958     95,390
 
ADD: Shares of common stock assumed issued upon exercise of
     stock options using the "treasury stock" method as it
     applies to the computation of primary earnings per
     share..................................................       2,808       4,372       2,835      4,127
                                                              ----------  ----------  ----------  ---------
 
NUMBER OF COMMON AND COMMON EQUIVALENT SHARES OUTSTANDING...     101,337      99,975     100,793     99,517
 
ADD: Additional shares of common stock assumed issued upon
     exercise of stock options using the "treasury stock"
     method as it applies to the computation of fully
     diluted earnings per share.............................         232         194         205        454
                                                              ----------  ----------  ----------  ---------
 
NUMBER OF COMMON AND COMMON EQUIVALENT SHARES OUTSTANDING
  ASSUMING FULL DILUTION....................................     101,569     100,169     100,998     99,971
                                                              ----------  ----------  ----------  ---------
                                                              ----------  ----------  ----------  ---------
 
NET EARNINGS FOR PRIMARY AND FULLY DILUTED EARNINGS PER
  SHARE.....................................................  $   23,675  $   22,315  $   60,807  $  45,238
                                                              ----------  ----------  ----------  ---------
                                                              ----------  ----------  ----------  ---------
 
EARNINGS PER SHARE:
  PRIMARY...................................................  $      .23  $      .22  $      .60  $     .45
                                                              ----------  ----------  ----------  ---------
                                                              ----------  ----------  ----------  ---------
 
  FULLY DILUTED.............................................  $      .23  $      .22  $      .60  $     .45
                                                              ----------  ----------  ----------  ---------
                                                              ----------  ----------  ----------  ---------
</TABLE>
 
    All prior periods have been restated to reflect the 1997 acquisitions of
AMISYS Managed Care Systems, Inc. and Enterprise Systems, Inc. in pooling
transactions.

<PAGE>
                                                                      EXHIBIT 15
 
                              ARTHUR ANDERSEN LLP
 
To HBO & Company:
 
    We are aware that HBO & Company has incorporated by reference in its
previously filed registration statements on Form S-8 its Form 10-Q for the
quarter ended June 30, 1997, which includes our report dated July 16, 1997
covering the unaudited interim consolidated financial information contained
therein. Pursuant to Regulation C of the Securities Act of 1933 (the "Act"),
that report is not considered a part of the registration statement prepared or
certified by our firm or a report prepared or certified by our firm within the
meaning of Sections 7 and 11 of the Act.
 
                                          ARTHUR ANDERSEN LLP
 
Atlanta, Georgia
 
July 16, 1997

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from HBO &
Company Consolidated Statement of Income for the Six Months Ended 6/30/97 and
HBO & Company Consolidated Balance Sheet at 6/30/97 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                         261,273
<SECURITIES>                                    33,825
<RECEIVABLES>                                  339,262
<ALLOWANCES>                                    13,757
<INVENTORY>                                      7,237
<CURRENT-ASSETS>                               675,638
<PP&E>                                         191,951
<DEPRECIATION>                                 120,082
<TOTAL-ASSETS>                               1,034,687
<CURRENT-LIABILITIES>                          303,932
<BONDS>                                            155
                                0
                                          0
<COMMON>                                         6,434
<OTHER-SE>                                     716,021
<TOTAL-LIABILITY-AND-EQUITY>                 1,034,687
<SALES>                                        246,882
<TOTAL-REVENUES>                               516,522
<CGS>                                           92,695
<TOTAL-COSTS>                                  386,228
<OTHER-EXPENSES>                                41,891
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                101,345
<INCOME-TAX>                                    40,538
<INCOME-CONTINUING>                             60,807
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    60,807
<EPS-PRIMARY>                                     0.60
<EPS-DILUTED>                                     0.60
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from HBO &
Company Consolidated Statement of Income for the Three Months Ended 3/31/97 and
HBO & Company Consolidated Balance Sheet at 3/31/97 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                         239,858
<SECURITIES>                                    20,021
<RECEIVABLES>                                  330,559
<ALLOWANCES>                                    13,245
<INVENTORY>                                      9,502
<CURRENT-ASSETS>                               630,376
<PP&E>                                         169,760
<DEPRECIATION>                                 113,881
<TOTAL-ASSETS>                                 982,991
<CURRENT-LIABILITIES>                          297,045
<BONDS>                                            174
                                0
                                          0
<COMMON>                                         6,432
<OTHER-SE>                                     671,260
<TOTAL-LIABILITY-AND-EQUITY>                   982,991
<SALES>                                        113,168
<TOTAL-REVENUES>                               246,060
<CGS>                                           43,083
<TOTAL-COSTS>                                  186,453
<OTHER-EXPENSES>                               (2,280)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 61,887
<INCOME-TAX>                                    24,755
<INCOME-CONTINUING>                             37,132
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    37,132
<EPS-PRIMARY>                                     0.37
<EPS-DILUTED>                                     0.37
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from HBO &
Company Consolidated Statement of Income for the Twelve Months Ended 12/31/96
and HBO & Company Consolidated Balance Sheet at 12/31/96 and is qualified in
its entirety by reference to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                         199,959
<SECURITIES>                                    25,639
<RECEIVABLES>                                  342,368
<ALLOWANCES>                                    10,770
<INVENTORY>                                      7,025
<CURRENT-ASSETS>                               605,798
<PP&E>                                         166,307
<DEPRECIATION>                                 110,468
<TOTAL-ASSETS>                                 959,347
<CURRENT-LIABILITIES>                          336,390
<BONDS>                                            192
                                0
                                          0
<COMMON>                                         6,428
<OTHER-SE>                                     609,283
<TOTAL-LIABILITY-AND-EQUITY>                   959,347
<SALES>                                        429,806
<TOTAL-REVENUES>                               895,333
<CGS>                                          155,952
<TOTAL-COSTS>                                  703,732
<OTHER-EXPENSES>                                63,692
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                127,909
<INCOME-TAX>                                    50,621
<INCOME-CONTINUING>                             77,288
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    77,288
<EPS-PRIMARY>                                     0.78
<EPS-DILUTED>                                     0.77
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from HBO &
Company Consolidated Statement of Income for the Nine Months Ended 9/30/96 and
HBO & Company Consolidated Balance Sheet at 9/30/96 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               SEP-30-1996
<CASH>                                         116,106
<SECURITIES>                                    52,807
<RECEIVABLES>                                  270,814
<ALLOWANCES>                                    10,051
<INVENTORY>                                      7,028
<CURRENT-ASSETS>                               469,263
<PP&E>                                         171,497
<DEPRECIATION>                                 118,124
<TOTAL-ASSETS>                                 833,126
<CURRENT-LIABILITIES>                          252,136
<BONDS>                                            213
                                0
                                          0
<COMMON>                                         6,407
<OTHER-SE>                                     564,414
<TOTAL-LIABILITY-AND-EQUITY>                   833,126
<SALES>                                        297,116
<TOTAL-REVENUES>                               639,394
<CGS>                                          107,137
<TOTAL-COSTS>                                  507,443
<OTHER-EXPENSES>                                30,495
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                101,456
<INCOME-TAX>                                    40,041
<INCOME-CONTINUING>                             61,415
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    61,415
<EPS-PRIMARY>                                     0.62
<EPS-DILUTED>                                     0.62
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from HBO &
Company Consolidated Statement of Income for the Six Months Ended 6/30/96 and
HBO & Company Consolidated Balance Sheet at 6/30/96 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                         118,930
<SECURITIES>                                    30,319
<RECEIVABLES>                                  246,569
<ALLOWANCES>                                    10,126
<INVENTORY>                                      6,437
<CURRENT-ASSETS>                               423,057
<PP&E>                                         165,014
<DEPRECIATION>                                 112,695
<TOTAL-ASSETS>                                 777,276
<CURRENT-LIABILITIES>                          232,702
<BONDS>                                          2,708
                                0
                                          0
<COMMON>                                         6,445
<OTHER-SE>                                     527,940
<TOTAL-LIABILITY-AND-EQUITY>                   777,276
<SALES>                                        182,406
<TOTAL-REVENUES>                               408,038
<CGS>                                           67,322
<TOTAL-COSTS>                                  327,976
<OTHER-EXPENSES>                                 5,570
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 74,492
<INCOME-TAX>                                    29,254
<INCOME-CONTINUING>                             45,238
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    45,238
<EPS-PRIMARY>                                     0.45
<EPS-DILUTED>                                     0.45
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from HBO &
Company Consolidated Statement of Income for the Three Months Ended 3/31/96 and
HBO & Company Consolidated Balance Sheet at 3/31/96 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                          98,993
<SECURITIES>                                    40,698
<RECEIVABLES>                                  223,296
<ALLOWANCES>                                    10,056
<INVENTORY>                                      9,567
<CURRENT-ASSETS>                               390,001
<PP&E>                                         160,471
<DEPRECIATION>                                 107,827
<TOTAL-ASSETS>                                 745,472
<CURRENT-LIABILITIES>                          228,375
<BONDS>                                          3,160
                                0
                                          0
<COMMON>                                         3,611
<OTHER-SE>                                     503,017
<TOTAL-LIABILITY-AND-EQUITY>                   745,472
<SALES>                                         79,407
<TOTAL-REVENUES>                               191,741
<CGS>                                           28,517
<TOTAL-COSTS>                                  155,559
<OTHER-EXPENSES>                               (1,524)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 37,706
<INCOME-TAX>                                    14,783
<INCOME-CONTINUING>                             22,923
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    22,923
<EPS-PRIMARY>                                     0.23
<EPS-DILUTED>                                     0.23
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from HBO &
Company Consolidated Statement of Income for the Twelve Months Ended 12/31/95
and HBO & Company Consolidated Balance Sheet at 12/31/95 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-START>                             JAN-01-1995
<PERIOD-END>                               DEC-31-1995
<CASH>                                         103,369
<SECURITIES>                                    34,779
<RECEIVABLES>                                  213,658
<ALLOWANCES>                                    10,373
<INVENTORY>                                      8,070
<CURRENT-ASSETS>                               380,458
<PP&E>                                         157,137
<DEPRECIATION>                                 103,552
<TOTAL-ASSETS>                                 734,076
<CURRENT-LIABILITIES>                          241,621
<BONDS>                                          3,642
                                0
                                          0
<COMMON>                                         3,607
<OTHER-SE>                                     474,488
<TOTAL-LIABILITY-AND-EQUITY>                   734,076
<SALES>                                        297,696
<TOTAL-REVENUES>                               672,276
<CGS>                                          111,312
<TOTAL-COSTS>                                  564,612
<OTHER-EXPENSES>                               136,423
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                               (28,759)
<INCOME-TAX>                                  (13,085)
<INCOME-CONTINUING>                           (15,674)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (15,674)
<EPS-PRIMARY>                                   (0.18)
<EPS-DILUTED>                                   (0.18)
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from HBO &
Company Consolidated Statement of Income for the Twelve Months Ended 12/31/94
and HBO & Company Consolidated Balance Sheet at 12/31/94 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-START>                             JAN-01-1994
<PERIOD-END>                               DEC-31-1994
<CASH>                                          51,322
<SECURITIES>                                     1,746
<RECEIVABLES>                                  150,816
<ALLOWANCES>                                     4,399
<INVENTORY>                                      4,286
<CURRENT-ASSETS>                               224,108
<PP&E>                                         139,231
<DEPRECIATION>                                  91,786
<TOTAL-ASSETS>                                 404,416
<CURRENT-LIABILITIES>                          174,169
<BONDS>                                         14,815
                                0
                                          0
<COMMON>                                         3,228
<OTHER-SE>                                     205,391
<TOTAL-LIABILITY-AND-EQUITY>                   404,416
<SALES>                                        233,566
<TOTAL-REVENUES>                               493,078
<CGS>                                           87,333
<TOTAL-COSTS>                                  434,886
<OTHER-EXPENSES>                                 5,839
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 52,353
<INCOME-TAX>                                    19,426
<INCOME-CONTINUING>                             32,927
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    32,927
<EPS-PRIMARY>                                     0.38
<EPS-DILUTED>                                     0.38
        

</TABLE>


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission