INPUT OUTPUT INC
10-Q, 1998-10-14
MEASURING & CONTROLLING DEVICES, NEC
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<PAGE>

- --------------------------------------------------------------------------------
                                          
                                   UNITED STATES
                         SECURITIES AND EXCHANGE COMMISSION
                                WASHINGTON, DC 20549
                                          
                                          
                                     FORM 10-Q
                                          
                                          
         [X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
              SECURITIES EXCHANGE ACT OF 1934       
                                          
              FOR THE QUARTERLY PERIOD ENDED:   AUGUST 31, 1998
                                          
                                         OR

         [ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
              SECURITIES EXCHANGE ACT OF 1934
              FOR THE TRANSITION PERIOD FROM _____________ TO ____________ 

              COMMISSION FILE NUMBER:  1-13402


                                 INPUT/OUTPUT, INC.
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)


           DELAWARE                                           22-2286646
(STATE OR OTHER JURISDICTION OF                             (IRS EMPLOYER 
INCORPORATION OR ORGANIZATION)                            IDENTIFICATION NO.)


11104 WEST AIRPORT BLVD., STAFFORD, TEXAS                          77477
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                        (ZIP CODE)

         Registrant's telephone number, including area code: (281) 933-3339
                                          
                                          
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  [ ]

At August 31, 1998 there were 44,586,434 shares of common stock, par value 
$0.01 per share, outstanding.

- --------------------------------------------------------------------------------
<PAGE>

                         INPUT/OUTPUT, INC. AND SUBSIDIARIES
                                          
                                 INDEX TO FORM 10-Q
                       FOR THE QUARTER ENDED AUGUST 31, 1998



PART I.  Financial Information.
<TABLE>
<CAPTION>
                                                                    Page
                                                                    ----
<S>                                                                 <C>
Item 1.  Financial Statements.

  Consolidated Balance Sheets
    August 31, 1998 and May 31, 1998                                  2

  Consolidated Statements of Operations
     Three months ended August 31, 1998 and 1997                      3

  Consolidated Statements of Cash Flows
     Three months ended August 31, 1998 and 1997                      4

  Notes to Consolidated Financial Statements                          5

Item 2.  Management's Discussion and Analysis of Results of 
          Operations and Financial Condition                          9

Item 3.  Quantitative and Qualitative Disclosures 
          about Market Risk                                          19


PART II.  Other Information.

Item 1.  Legal Proceedings                                           20

Item 2.  Changes in Securities                                       20

Item 6.  Exhibits and Reports on Form 8-K                            20
</TABLE>

                                      1


<PAGE>
                                          
                        INPUT/OUTPUT, INC. AND SUBSIDIARIES
                                          
                            CONSOLIDATED BALANCE SHEETS
                         (IN THOUSANDS, EXCEPT SHARE DATA)
                                    (UNAUDITED)

<TABLE>
<CAPTION>
                         ASSETS                          AUGUST 31,  May 31,
                                                           1998       1998
                                                         ---------   -------
<S>                                                      <C>        <C>
Current assets:
     Cash and cash equivalents . . . . . . . . . . .     $ 59,999   $ 72,275
     Trade accounts receivable, net. . . . . . . . .       75,466     68,257
     Trade notes receivable, net . . . . . . . . . .       37,123     38,987
     Inventories . . . . . . . . . . . . . . . . . .      125,388    120,206
     Prepaid expenses. . . . . . . . . . . . . . . .        3,126      2,649
                                                         --------   --------
        Total current assets . . . . . . . . . . . .      301,102    302,374
Long-term trade notes receivable . . . . . . . . . .       16,320     32,487
Deferred income tax asset, net . . . . . . . . . . .        3,719      2,896
Property, plant and equipment, net . . . . . . . . .       71,297     69,303
Goodwill, net. . . . . . . . . . . . . . . . . . . .       66,909     68,414
Other assets . . . . . . . . . . . . . . . . . . . .       13,844     14,189
                                                         --------   --------
                                                         $473,191   $489,663
                                                         --------   --------
                                                         --------   --------

     LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
     Accounts payable, principally trade . . . . . .     $ 22,430   $ 33,107
     Current installments of debt. . . . . . . . . .        1,006        986
     Accrued expenses. . . . . . . . . . . . . . . .       15,982     20,521
     Income taxes payable. . . . . . . . . . . . . .        4,685      8,139
                                                         --------   --------
        Total current liabilities. . . . . . . . . .       44,103     62,753
Long-term debt . . . . . . . . . . . . . . . . . . .        9,754     10,011
Other liabilities. . . . . . . . . . . . . . . . . .        1,302      1,199
Stockholders' equity:
     Preferred stock, $.01 par value; authorized 
         5,000,000 shares, none issued . . . . . . .           --         --
     Common stock, $.01 par value; authorized 
         100,000,000 shares; issued 44,586,434 
         shares at August 31, 1998 and 44,584,634
         shares at May 31, 1998. . . . . . . . . . .          446        446
     Additional paid-in capital. . . . . . . . . . .      240,765    240,746
     Retained earnings . . . . . . . . . . . . . . .      180,160    177,885
     Cumulative translation adjustment . . . . . . .       (2,181)    (2,063)
     Unamortized restricted stock compensation . . .       (1,158)    (1,314)
                                                         --------   --------
         Total  stockholders' equity . . . . . . . .      418,032    415,700
                                                         --------   --------
                                                         $473,191   $489,663
                                                         --------   --------
                                                         --------   --------
</TABLE>

     See accompanying notes to consolidated financial statements. 

                                       2
<PAGE>

                      INPUT/OUTPUT, INC. AND SUBSIDIARIES
                                       
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
                                  (UNAUDITED)

<TABLE>
<CAPTION>
                                                         FOR THE THREE MONTHS
                                                                 ENDED
                                                              AUGUST 31,
                                                        ---------------------
                                                           1998        1997
                                                         --------    --------
<S>                                                      <C>         <C>
Net sales. . . . . . . . . . . . . . . . . . . . . .     $ 66,995    $ 82,970
Cost of sales. . . . . . . . . . . . . . . . . . . .       45,032      49,656
                                                         --------    --------
     Gross profit. . . . . . . . . . . . . . . . . .       21,963      33,314
                                                         --------    --------
Operating expenses:                                                
   Research and development. . . . . . . . . . . . .        9,061       7,388
   Marketing and sales . . . . . . . . . . . . . . .        3,962       2,884
   General and administrative. . . . . . . . . . . .        6,335       6,068
   Amortization of intangibles . . . . . . . . . . .        1,860       1,187
                                                         --------    --------
     Total operating expenses. . . . . . . . . . . .       21,218      17,527
                                                         --------    --------
Earnings from operations . . . . . . . . . . . . . .          745      15,787
Interest expense . . . . . . . . . . . . . . . . . .         (242)       (322)
Other income . . . . . . . . . . . . . . . . . . . .        2,843       1,119
                                                         --------    --------
Earnings before income taxes . . . . . . . . . . . .        3,346      16,584
Income taxes . . . . . . . . . . . . . . . . . . . .        1,071       5,307
                                                         --------    --------
Net earnings . . . . . . . . . . . . . . . . . . . .     $  2,275    $ 11,277
                                                         --------    --------
                                                         --------    --------
Basic earnings per common share. . . . . . . . . . .     $   0.05    $   0.26
                                                         --------    --------
                                                         --------    --------
Weighted average number of common                                  
shares outstanding . . . . . . . . . . . . . . . . .   44,585,501  43,383,059
                                                       ----------  ----------
                                                       ----------  ----------
                                                                   
Diluted earnings per common share. . . . . . . . . .     $   0.05    $   0.26
                                                         --------    --------
                                                         --------    --------
                                                                   
Weighted average number of diluted                                 
common shares outstanding. . . . . . . . . . . . . .   44,702,268  43,793,884
                                                       ----------  ----------
                                                       ----------  ----------
</TABLE>
                                       
       See accompanying notes to consolidated financial statements.

                                       3
<PAGE>

                                       
                     INPUT/OUTPUT, INC. AND SUBSIDIARIES
                                       
                    CONSOLIDATED STATEMENTS OF CASH FLOWS
                                (IN THOUSANDS)
                                 (UNAUDITED)
<TABLE>
<CAPTION>
                                                           THREE MONTHS ENDED
                                                               AUGUST 31,
                                                         --------------------
                                                            1998       1997
                                                           ------     ------
<S>                                                        <C>       <C>
Cash flows from operating activities:
  Net earnings . . . . . . . . . . . . . . . . . . .     $  2,275    $11,277
  Adjustments to reconcile net earnings to net cash 
     (used in) provided by operating activities:
       Depreciation and amortization . . . . . . . .        4,706      3,764
       Amortization of restricted stock 
        compensation . . . . . . . . . . . . . . . .          156         17
       Deferred income taxes . . . . . . . . . . . .         (823)       695
       Pension costs . . . . . . . . . . . . . . . .          108         91
                                                         --------    -------
                                                            6,422     15,844
       Changes in assets and liabilities:
          Receivables. . . . . . . . . . . . . . . .       10,822     18,588
          Inventories. . . . . . . . . . . . . . . .       (5,182)     1,620
          Leased equipment . . . . . . . . . . . . .           335      (272)
          Accounts payable and accrued expenses. . .      (15,216)      (196)
          Income taxes payable . . . . . . . . . . .       (3,454)     2,909
          Other. . . . . . . . . . . . . . . . . . .         (753)      (653)
                                                         --------    -------
          Net cash (used in) provided by 
            operating activities . . . . . . . . . .       (7,026)    37,840

Cash flows from investing activities:
  Purchases of property, plant and equipment . . . .       (5,145)    (1,764)
  Recovery of (investment in) other assets . . . . .          146     (1,110)
                                                         --------    -------
     Net cash used in investing activities . . . . .       (4,999)    (2,874)

Cash flows from financing activities:
 Payments on debt. . . . . . . . . . . . . . . . . .         (237)      (221)
 Proceeds from exercise of stock options and 
   related tax benefit . . . . . . . . . . . . . . .           19      3,718
                                                         --------    -------
      Net cash (used in) provided by financing 
      activities . . . . . . . . . . . . . . . . . .         (218)     3,497

Effect of foreign currency exchange rates  . . . . .          (33)      (141)
                                                         --------    -------
Net (decrease) increase in cash and cash 
  equivalents. . . . . . . . . . . . . . . . . . . .      (12,276)    38,322

Cash and cash equivalents at beginning of period . .       72,275      2,573
                                                         --------    -------
Cash and cash equivalents at end of period . . . . .     $ 59,999    $40,895
                                                         --------    -------
                                                         --------    -------
</TABLE>
                                       
         See accompanying notes to consolidated financial statements.

                                       4
<PAGE>

                       INPUT/OUTPUT, INC. AND SUBSIDIARIES

                    NOTES TO CONSOLIDATED FINANCIAL STATEMENTS   
                                  (UNAUDITED)

(1)  GENERAL

     The consolidated financial statements included herein have been prepared 
by the Company, without audit, pursuant to the rules and regulations of the 
Securities and Exchange Commission. The financial statements reflect all 
adjustments (consisting of normal recurring accruals) which are, in the 
opinion of management, necessary to fairly present such information. Although 
the Company believes that the disclosures are adequate to make the 
information presented not misleading, certain information and footnote 
disclosures, including significant accounting policies, normally included in 
financial statements prepared in accordance with generally accepted 
accounting principles have been omitted pursuant to such rules and 
regulations. It is suggested that these financial statements be read in 
conjunction with the consolidated financial statements and the notes thereto, 
as well as Item 7.  "Management's Discussion and Analysis of Results of 
Operations and Financial Condition," included in the Company's Annual Report 
on Form 10-K for the year ended May 31, 1998, as filed with the Securities 
and Exchange Commission.

(2)  INVENTORIES

     Inventories are stated at the lower of cost (primarily first-in, 
first-out) or market. A summary of inventories follows (in thousands):

<TABLE>
<CAPTION>
                                      AUGUST 31    MAY 31,
                                        1998        1998
                                      ---------   --------
<S>                                   <C>         <C>
Raw materials                         $ 67,075    $ 67,432
Work-in-process                         14,610      25,262
Finished goods                          43,703      27,512
                                      --------    --------
                                      $125,388    $120,206
                                      --------    --------
                                      --------    --------
</TABLE>

EARNINGS PER SHARE

     The Company has adopted the Financial Accounting Standards Board 
Statement of Financial Accounting Standards No. 128, "Earnings per Share". In 
accordance with this new pronouncement, basic earnings per share is computed 
by dividing net earnings available to common stock holders by the weighted 
average number of common shares outstanding during the period. Diluted 
earnings per share is determined on the assumption that outstanding dilutive 
stock options have been exercised and the aggregate proceeds as defined were 
used to reacquire Company common stock using the average price of such common 
stock for the period. Prior period earnings per share amounts have been 
restated in accordance with the requirements of the pronouncement.

                                      5
<PAGE>

                     INPUT/OUTPUT, INC. AND SUBSIDIARIES
                                       
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (CONTINUED)
                                 (UNAUDITED)


     The following table summarizes the calculation of net earnings, weighted 
average number of common shares outstanding and weighted average number of 
diluted common shares outstanding for purposes of the computation of earnings 
per share.

<TABLE>
<CAPTION>
                                                     FOR THE THREE MONTHS ENDED
                                                             AUGUST 31,
                                                     --------------------------
                                                        1998            1997
                                                       ------          ------
<S>                                                  <C>            <C>
Net earnings available to common stockholders
(in thousands) . . . . . . . . . . . . . . . . . .      $ 2,275        $11,277
                                                        -------        -------
                                                        -------        -------
Weighted average number of common 
shares outstanding . . . . . . . . . . . . . . . .   44,585,501     43,383,059

Stock options. . . . . . . . . . . . . . . . . . .      116,767        410,825
                                                        -------        -------
Weighted average number of diluted 
common shares outstanding. . . . . . . . . . . . .   44,702,268     43,793,884
                                                     ----------     ----------
                                                     ----------     ----------
Basic earnings per common share. . . . . . . . . .      $  0.05        $  0.26
                                                        -------        -------
                                                        -------        -------
Diluted earnings per common share. . . . . . . . .      $  0.05        $  0.26
                                                        -------        -------
                                                        -------        -------
</TABLE>

     At August 31, 1998 and 1997, there were 3,558,393 and 1,000,500, 
respectively, of stock options that were not included in the calculation of 
diluted earnings per common share because to do so would have been 
antidilutive.

(4)  STATEMENTS OF CASH FLOWS

     The Company considers all highly liquid investments purchased with an 
original maturity of three months or less to be cash equivalents. The Company 
does not use or intend to use derivatives. Exchange rate fluctuations have 
not had a material effect on the Company's Statements of Cash Flows.

     Supplemental disclosures of cash flow information for the three months 
ended August 31, 1998 and 1997 follow (in thousands):

<TABLE>
<CAPTION>
                                                            1998       1997
                                                          --------   -------
<S>                                                       <C>        <C>
Cash paid during the periods for:       

     Interest (net of amount capitalized). . . . .        $   242    $  342
                                                          -------    ------
     Income taxes. . . . . . . . . . . . . . . . .        $ 5,313    $  140
                                                          -------    ------
                                                          -------    ------
</TABLE>

                                      6

<PAGE>

                      INPUT/OUTPUT, INC. AND SUBSIDIARIES
                                       
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                 (CONTINUED)
                                 (UNAUDITED)


(5)  LONG TERM DEBT

     A Company subsidiary has a $12.6 million, ten-year term loan secured by 
certain of its land and buildings located in Stafford, Texas which includes 
the Company's executive offices, research and development headquarters, and 
electronics manufacturing facility.  The term loan, which the Company has 
guaranteed under a Limited Guaranty, bears interest at a fixed rate of 7.875% 
per annum.  The Company leases all of the property from its subsidiary under 
a master lease, which lease has been collaterally assigned to the lender as 
security for the term loan.  The term loan provides for penalties for 
prepayment prior to maturity. The term loan also contains certain restrictive 
financial covenants with which the Company was in compliance at August 31, 
1998.

(6)  COMPREHENSIVE EARNINGS

     Effective June 1, 1998, the Company adopted Statement of Financial 
Accounting Standards ("SFAS") No. 130, "Reporting Comprehensive Income", 
which establishes standards for reporting and display of comprehensive income 
and its components in a full set of financial statements. Comprehensive 
income includes all changes in a company's equity (except those resulting 
from investments by and distributions to owner's), including, among other 
things, foreign currency translations adjustments, and unrealized gains 
(losses) on marketable securities classified as available-for-sale. Total 
comprehensive earnings for the three months ended August 31, 1998 and 1997 
follow (in thousands): 

<TABLE>
<CAPTION>
                                                      1998       1997
                                                     ------    -------
<S>                                                  <C>       <C>
     Net earnings                                    $2,275    $11,277
          Foreign currency translation adjustments     (118)      (279)
                                                     ------    -------

          Total comprehensive earnings               $2,157    $10,998
                                                     ------    -------
                                                     ------    -------
</TABLE>

(7)  NEW ACCOUNTING PRONOUNCEMENTS

     In March 1998, the AICPA issued Statement of Position 98-1, "Accounting 
for the Costs of Computer Software Developed or Obtained for Internal 
Use"(SOP 98-1), establishing accounting standards for such costs, as defined 
therein. Accordingly, certain costs of computer software developed or 
obtained for internal use will be capitalized and amortized over the 
estimated useful life of the software. Effective June 1, 1998, the Company 
adopted SOP 98-1.

                                      7
<PAGE>

(8)  COMMITMENTS AND CONTINGENCIES

     LEGAL PROCEEDINGS. On September 24, 1997, a purported class action 
lawsuit was filed against the Company and the former president and chief 
executive officer, and an executive vice president, of the Company, in the 
U.S. District Court for the Southern District of Texas, Houston Division. The 
action, styled NORMAN TOCK V. INPUT/OUTPUT, INC., GARY D. OWENS AND ROBERT P. 
BRINDLEY, alleges violations of Sections 10(b) and 20(a) of the Securities 
Exchange Act of 1934, and state statutory and common law fraud provisions. 
The action was filed on behalf of purchasers of common stock of the Company 
that purchased shares during the period from September 17, 1996 through March 
18, 1997. The complaint seeks damages in an unspecified amount plus costs and 
attorney's fees. The complaint alleges misrepresentations and omissions in 
public filings and announcements concerning the Company's business, sales and 
products, and disputes certain accounting methodologies employed by the 
Company. On October 21, 1997, a stipulation and order was entered by the 
court, extending the time for responses to the complaint by the defendants 
pending entry of an order appointing lead plaintiff and lead counsel. An 
amended complaint was filed on April 17, 1998. Defendants filed a motion to 
dismiss and brief in support thereof on June 8, 1998. Plaintiff has filed 
papers in opposition to that motion. Defendants have filed a reply to 
Plaintiff's opposition. No hearing on the motion to dismiss has been 
scheduled. The Company believes that the plaintiff's allegations are without 
merit and that there are meritorious defenses to the allegations and intends 
to defend the action vigorously.

     In the ordinary course of business, the Company has been named in other 
various lawsuits. While the final resolution of these matters may have an 
impact on the Company's consolidated financial results for a particular 
reporting period, management believes that the ultimate resolution of these 
matters will not have a material adverse impact on the Company's financial 
position, results of operations or liquidity.

     YEAR 2000.  -PRODUCTS-  With regard to the hardware and software 
products sold by it ("Products"), the Company is continuing its testing and 
verification procedures to determine the nature and extent of their Year 2000 
compliance. The Company has formed a cross-functional focus team to review 
these issues and to assist its customers and suppliers in identifying and 
resolving Year 2000 issues. The overall assessment of the operational status 
of the Company's Products will depend, in large part, on the Year 2000 
compliance of the Products' components, many of which are supplied by parties 
other than the Company. Prior to the end of calendar year 1998, the Company 
intends to (i) complete its internal review of the Year 2000 compliance of 
its Products and (ii) circulate and assimilate information from a 
questionnaire to vendors and customers in order to obtain information 
regarding their Year 2000 compliance. Until additional information is 
obtained, the Company will not be able to effectively evaluate whether 
further remediation efforts will be required with respect to its Products.

     A portion of the Company's Year 2000 compliance expenditures expected to 
be incurred relate to the Company's limited warranty coverage. As of August 
31, 1998, no specific amounts have been accrued to the warranty reserve for 
such costs, as the Company has not yet been able to make an estimate of such 
costs based on its current level of assessment. For instances in which the 
limited warranty has expired or there was no warranty coverage, the Company 
would offer, 

                                      8
<PAGE>

on a fee basis, upgrades (if technically achievable) to those Products to 
render them Year 2000 compliant. 

     The Company does not yet possess the information necessary to estimate 
the potential impact of Year 2000 compliance issues relating to its Products 
or vendors if such Products or vendors were not Year 2000 compliant. In 
addition, a relatively small number of customers have traditionally accounted 
for most of the Company's net sales from fiscal year to fiscal year, although 
the degree of sales concentration with any one customer has varied.  The loss 
of any significant customer due to reasons related to Year 2000 
non-compliance of the Company's Products could have a material adverse impact 
on the Company's operations, results of operations or financial position.

     CREDIT RISK. The Company sells to many customers on extended-term 
arrangements. Moreover, in connection with certain sales of its systems and 
equipment, the Company has guaranteed certain loans from unaffiliated parties 
to purchasers of such systems and equipment. In addition, the Company has 
sold contracts and leases to third-party financing sources, the terms of 
which often obligate the Company to repurchase the contracts and leases in 
the event of a customer default or upon certain other occurrences. 
Performance of the Company's obligations under these arrangements could have 
a material adverse effect on the Company's financial condition. At August 31, 
1998 and May 31, 1998, the Company had guaranteed approximately $8,078,000 
and $11,140,000, respectively, of trade notes receivable sold with recourse 
and loans from unaffiliated parties to purchasers of the Company's seismic 
equipment. A number of significant payment defaults by customers could have a 
material adverse effect on the Company's financial position and results of 
operations. All loans guaranteed are collateralized by the seismic equipment. 
Due to the inherent uncertainties of guaranty agreements, the Company cannot 
estimate the fair value of the guaranties as of August 31, 1998.

SUBSEQUENT EVENT

      On September 30, 1998, the Company and DigiCOURSE, Inc., a New 
Orleans-based subsidiary of privately-owned The Laitram Corporation, signed a 
definitive merger agreement. Under the terms of the agreement, the Company 
will acquire, for 5,794,000 shares of Company common stock, all of the 
capital stock of DigiCOURSE, Inc. The transaction is subject to certain 
closing conditions, including additional due diligence, regulatory approvals 
and negotiation of certain ancillary documents. The Company anticipates that 
the transaction will close by the end of the Company's second fiscal quarter 
and will be accounted for as a purchase business combination.
      
ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS AND
         FINANCIAL CONDITION

RESULTS OF OPERATIONS

     NET SALES.  The Company's first quarter net sales decreased $16.0 
million, or 19.3%, to $67.0 million as compared to the prior year's first 
quarter net sales of $83.0 million. The 

                                      9
<PAGE>

decrease in sales revenues was primarily due to lower sales levels of the 
Company's land systems and components. The decline in sales of land systems 
and components is attributable to the decrease in oil prices resulting in 
delayed or reduced exploration spending by oil and gas companies during the 
quarter, which caused several projects to be postponed or canceled. During 
fiscal 1999's first quarter, two I/O SYSTEM TWO-Registered Trademark- land 
systems and one MSX marine system were sold, along with other seismic data 
acquisition recording equipment and components for expanding existing systems 
(representing a total channel count of 5,142 land and 2,448 marine channels); 
the prior year's first quarter sales consisted of 14 I/O SYSTEM TWO land 
systems and one MSX marine system and other recording equipment and 
components (for a total channel count of 23,796 land and 1,778 marine 
channels).

     GROSS PROFIT MARGIN.  The Company's gross profit margin decreased for 
the first quarter of fiscal 1999 compared to the prior year's first quarter, 
from 40.2% to 32.8%. Reduced demand for land seismic equipment and 
instrumentation and a higher percentage of lower-margin marine streamers, 
cables and auxiliary equipment in the sales mix were major contributing 
factors to the decreased gross profit margins. The Company's gross profit 
margin for any particular reporting period is dependent on the product mix 
sold and the pricing scheme for the products sold for that period, and may 
vary materially from period to period.

     OPERATING EXPENSES.  Operating expenses increased $3.7 million, or 
21.1%, for fiscal 1999's first quarter over the prior year's first quarter 
operating expenses. Research and development expenses increased $1.7 million, 
or 22.6%, compared to the prior year's first quarter, primarily resulting 
from development of new products and expenses related to recent acquisitions. 
Marketing and sales expenses increased $1.1 million, or 37.4%, compared to 
the prior year's first quarter primarily due to expenses related to recent 
acquisitions and higher convention and exhibit expenses. General and 
administrative expenses increased $267,000, or 4.4%. Amortization of 
intangibles increased $673,000, or 56.7%, primarily due to increased goodwill 
expense resulting from acquisitions.

     INTEREST EXPENSE. Interest expense for the first quarter (related to the 
ten-year term facilities financing) was $242,000. See "Note (5) - Long-Term 
Debt" of the Notes to Consolidated Financial Statements. Interest expense for 
last year's first quarter was $322,000, also representing interest on this 
facility.

     INCOME TAX EXPENSE.  The Company's effective income tax rate was 
approximately 32%, both for the first quarters of fiscal 1999 and of fiscal 
1998.

LIQUIDITY AND CAPITAL RESOURCES

     GENERAL.  The Company has traditionally financed its operations from 
internally generated cash flows, funds from equity financings and its credit 
facilities. Cash flows from operating activities before changes in working 
capital items were $6.4 million for the three months ended August 31, 1998. 
Cash flows from operating activities after changes in working capital items 
were a negative $7.0 million for the three months ended August 31, 1998, 
primarily due to 

                                      10
<PAGE>

decreases in accounts payable and accrued expenses (which represented a use 
of cash). As of August 31, 1998 no amounts of indebtedness were outstanding 
under the Company's Credit Agreement. The Company had approximately $49.8 
million available for borrowings under the Credit Agreement as of August 31, 
1998. 

     The Company had outstanding long-term indebtedness of $9.8 million as of 
August 31, 1998 secured by the land, buildings and improvements housing the 
Company's executive offices, research and development headquarters and 
electronics manufacturing facility in Stafford, Texas. The loan bears 
interest at the rate of 7.875% per annum and is repayable in equal monthly 
installments of principal and interest of $151,439. The promissory note, 
which matures on September 1, 2006, contains prepayment penalties.  See "Note 
(5) - Long-Term Debt" of the Notes to Consolidated Financial Statements.

     Capital expenditures totaled $5.1 million for the first quarter. Total 
capital expenditures are currently expected to aggregate $17.0 million for 
fiscal 1999. The Company believes that the combination of its existing 
working capital, unused credit available under its revolving credit facility, 
internally generated cash flows and access to other financing sources will be 
adequate to meet its anticipated capital and liquidity requirements for the 
foreseeable future.

     CREDIT AGREEMENT.  On February 27, 1998, the Company entered into a 
Credit Agreement with certain lenders, including Bank One, Texas, N.A., as 
administrative agent for the lenders, replacing the Company's former 
revolving working capital line of credit. The maximum amount available for 
borrowings under the Credit Agreement is $50 million. In addition, up to $15 
million of credit available under the Credit Agreement may be used, as 
needed, by the Company for letters of credit. Indebtedness under the Credit 
Agreement will mature on February 27, 2001. Borrowings under the Credit 
Agreement may be made to finance the Company's working capital, capital 
expenditures, acquisitions permitted under the Credit Agreement and for 
general corporate purposes. Outstanding indebtedness under the Credit 
Agreement will bear interest, at the Company's option, at fluctuating 
interest rates based upon a prime rate or a eurodollar rate plus a credit 
margin that fluctuates depending upon the Company's ratio of funded debt to 
capitalization. In addition, the Company must pay a commitment fee for unused 
amounts available under the credit facility, in an amount also based upon the 
Company's ratio of funded debt to capitalization.

     The obligations of the Company under the Credit Agreement are unsecured, 
except for a first lien pledge of the capital stock of certain wholly-owned 
subsidiaries of the Company that the lenders consider to be "material 
subsidiaries". Additionally, certain of these wholly-owned subsidiaries have 
guaranteed the Company's obligations under the Credit Agreement.

     YEAR 2000. Many currently installed computer systems and software 
products are coded to accept only two-digit entries in the date code field 
and cannot distinguish 21st century dates from 20th century dates. These date 
code fields will need to distinguish 21st century dates from 20th century 
dates and, as a result, many companies' software and computer systems may 
need to be upgraded or replaced in order to comply with such "Year 2000" 
requirements. The Company 

                                      11
<PAGE>

is currently working to resolve the potential impact of the Year 2000 issue 
on the computerized systems it utilizes internally, and with regard to its 
products and customers.

     STATE OF READINESS. The Company is in the process of evaluating the Year 
2000 readiness of the hardware and software products sold by it ("Products"), 
the information technology systems used in its operations ("IT Systems"), and 
its non-IT Systems, such as building security, voice mail and other systems. 
The Company has substantially completed its assessment of its IT Systems used 
in the United States, which have been verified and tested to be Year 2000 
compliant. Beginning in calendar 1996, the Company commenced replacement of 
its then-current U.S. IT System with a new system. This replacement, which 
was substantially completed in fiscal 1998, was required in order to meet 
current and future needs of the Company's business as well as to make more 
efficient various administrative and operating functions. Because the Company 
did not undertake this replacement for reasons of Year 2000 compliance (the 
Company understands that its previous IT system was also Year 2000 
compliant), the costs of this conversion have not been identified as Year 
2000 compliance costs. The Company has not yet, however, completed its 
assessment of its IT Systems at its European locations. It is currently 
planned that these systems will be replaced with a version of the Company's 
current U.S. IT System by late calendar 1999. The Company's Year 2000 
compliance program is expected to cover the following phases: (i) inventory 
of all non-tested IT Systems and non-IT Systems; (ii) assessment of repair or 
replacement requirements; (iii) planning and remediation; (iv) testing; and 
(v) implementation.

     With regard to its Products, the Company is continuing its testing and 
verification procedures to determine the nature and extent of their Year 2000 
compliance. The Company has formed a cross-functional focus team to review 
these issues and to assist its customers and suppliers in identifying and 
resolving Year 2000 issues. The Company believes that its Products will be 
Year 2000 compliant by mid-1999. The overall assessment of the operational 
status of the Company's Products will depend, in large part, on the Year 2000 
compliance of the Products' components, many of which are supplied by parties 
other than the Company. Prior to the end of calendar year 1998, the Company 
intends to (i) complete its internal review of the Year 2000 compliance of 
its Products and (ii) circulate and assimilate information from a 
questionnaire to vendors and customers in order to obtain information 
regarding their Year 2000 compliance. Until additional information is 
obtained, the Company will not be able to effectively evaluate whether 
further remediation efforts will be required with respect to its Products.

     Further, the Company relies, both domestically and internationally, upon 
various vendors, governmental agencies, utility companies, telecommunications 
service companies, delivery service companies and other service providers, 
which are outside of the Company's control. There is no assurance that such 
parties will not suffer a Year 2000 business disruption, which could have a 
material adverse effect on the Company's financial condition and results of 
operations.

     COSTS. To date, the Company has not incurred any material expenditures 
in connection with identifying, evaluating or remediating Year 2000 
compliance issues. The Company has not retained an outside consultant to 
assist it in its review and assessment of its Year 2000 issues. 

                                      12
<PAGE>

Most of its expenditures have related to the opportunity cost of time spent 
by employees of the Company evaluating the Company's Year 2000 issues for its 
IT Systems, its non-IT Systems and its Products. While the Company has not 
yet completed its evaluation of the estimated costs to remediate the Year 
2000 issues concerning its Products and internal systems (primarily expected 
to be costs in connection with replacing systems and modifying software), 
management currently believes that these expenditures will not have a 
material adverse effect on its operations, results of operations or financial 
condition. However, no assurances can be given that until the Company fully 
completes its cost evaluation, the economic effects of these remediation 
efforts will not have a material adverse effect on its operations, results of 
operations or financial condition.

     A portion of the Company's Year 2000 compliance expenditures expected to 
be incurred relate to the Company's limited warranty coverage. As of August 
31, 1998, no specific amounts have been accrued to the warranty reserve for 
such costs, as the Company has not been able to make an estimate of such 
costs based on its current level of assessment. For instances in which the 
limited warranty has expired or there was no warranty coverage, the Company 
would offer, on a fee basis, upgrades to those Products to render them Year 
2000 compliant. The Company believes that internally generated funds or 
available cash will be sufficient to cover the projected costs associated 
with its Year 2000 remediation requirements.

     RISKS. The Company does not yet possess the information necessary to 
estimate the potential impact of Year 2000 compliance issues relating to its 
Products or vendors if such Products or vendors were not Year 2000 compliant. 
In addition, a relatively small number of customers have traditionally 
accounted for most of the Company's net sales from fiscal year to fiscal 
year, although the degree of sales concentration with any one customer has 
varied. The loss of any significant customer due to reasons related to Year 
2000 non-compliance of the Company's Products could have a material adverse 
impact on the Company's operations, results of operations or financial 
position. 

     Failure to timely reprogram or replace the Company's European financial 
and accounting software could, in a worse case scenario, result in the 
Company's inability to process accounting and financial data, which could 
have a material adverse effect on the Company. At this time, the Company does 
not possess all of the information necessary to estimate the potential impact 
of Year 2000 compliance issues relating to its European IT Systems, its 
non-IT Systems, its Products, its vendors and its customers. Such impact, 
including the effect of a Year 2000 business disruption, could have a 
material adverse effect on the Company's financial condition and results of 
operations.

     CONTINGENCY PLAN. The Company has not yet developed a Year 2000 specific 
contingency plan. The Company intends to prepare a contingency plan with 
respect to its financial and accounting software and its Products no later 
than mid-calendar 1999. In addition, if further Year 2000 compliance issues 
are discovered, the Company then will evaluate the need for one or more 
contingency plans relating to those particular issues.

     OTHER.  Demand for the Company's products is dependent upon the level of 
worldwide oil and gas exploration and development activity. Such activity in 
turn is primarily dependent 

                                      13
<PAGE>

upon oil and gas prices, which have been subject to wide fluctuation in 
recent years. Since the spring of fiscal 1999, worldwide oil prices have been 
at their lowest levels since 1986. Continuing low prices for hydrocarbon 
production have in certain instances resulted in lower exploration budgets by 
oil companies, which situation during the first quarter of fiscal 1999 
resulted in a reduction in demand for the Company's seismic data acquisition 
services and equipment. 

     In addition, in recent months there has been considerable turmoil and 
uncertainty in the Russian financial markets, prompted in large part by the 
crisis in the Asian financial market which is still continuing, and the 
economic and political problems being experienced by a number of Asian 
countries. The Russian ruble has been under significant pressure, requiring 
the Russian government to raise interest rates substantially, and to seek 
special assistance from the International Monetary Fund in order to defend 
its currency. At the present time, it is not possible to predict whether the 
Russian government will be successful in avoiding another devaluation of the 
ruble, or when stability will return to its financial markets. Any 
devaluation of the ruble could exacerbate existing economic problems in 
Russia. Historically, customers in Russia and other Former Soviet Union 
countries have accounted for approximately 5-9% of the Company sales. The 
Company's combined trade accounts receivable and trade notes receivable 
balance from customers in Russia and other Former Soviet Union countries as 
of August 31, 1998 was approximately $26.6 million, these receivables are 
denominated in US dollars. To the extent that economic conditions in the 
Former Soviet Union or in Asia negatively affect future sales to the 
Company's customers in those regions or the collectibility of the Company's 
existing receivables, such conditions may adversely affect the Company's 
future results of operations, liquidity and financial condition.

     See "Cautionary Statement for Purposes of Forward-Looking Statements 
- -Uncertainty of Energy Industry Conditions" and "Risk from Significant Amount 
of Foreign Sales".

CAUTIONARY STATEMENT FOR PURPOSES OF FORWARD-LOOKING STATEMENTS

     Certain information contained in this Quarterly Report on Form 10-Q as 
well as other written and oral statements made or incorporated by reference 
from time to time by the Company and its representatives in other reports, 
filings with the Securities and Exchange Commission, press releases, 
conferences, or otherwise, may be deemed to be forward-looking statements 
within the meaning of Section 21E of the Securities Exchange Act of 1934 and 
are subject to the "Safe Harbor" provisions of that section. This information 
includes, without limitation, statements concerning future operations, future 
revenues, future earnings, future costs, future margins and future expenses; 
anticipated product releases and technological advances; the future mix of 
business and future asset recoveries; contingent liabilities; Year 2000 
issues; the inherent unpredictability of adversarial proceedings; and future 
demand for the Company's products, future capital expenditures and future 
financial condition of the Company; future energy industry conditions; and 
economic conditions in Asia and Former Soviet Union countries. These 
statements are based on current expectations and involve a number of risks 
and uncertainties, including those set forth below and elsewhere in this 
Quarterly Report on Form 10-Q. Although

                                      14
<PAGE>

the Company believes that the expectations reflected in such forward-looking
statements are reasonable, it can give no assurance that such expectations will
prove to be correct.

     When used in this report, the words "anticipate," "estimate," "expect,"
"may," "project" and similar expressions are intended to be among the statements
that identify forward-looking statements. Important factors which could affect
the Company's actual results and cause actual results to differ materially from
those results which might be projected, forecast, estimated or budgeted by the
Company in such forward-looking statements include, but are not limited to, the
following: 

     RISKS RELATED TO PRODUCTS AND TECHNOLOGICAL CHANGE. The markets for the
Company's product lines are characterized by rapidly changing technology and
frequent product introductions.  Whether the Company can develop and produce
successfully, on a timely basis, new and enhanced products that embody new
technology, meet evolving industry standards and practice, and achieve levels of
capability and price that are acceptable to its customers, will be significant
factors in the Company's ability to compete in the future. There can be no
assurance that the Company will not encounter resource constraints or technical
or other difficulties that could delay introduction of new products in the
future. If the Company is unable, for technological or other reasons, to develop
competitive products in a timely manner in response to changes in the seismic
data acquisition industry or other technological changes, its business and
operating results will be materially and adversely affected. In addition, the
Company's continuing development of new products inherently carries the risk of
inventory obsolescence with respect to its older products.
     
     UNCERTAINTY OF ENERGY INDUSTRY CONDITIONS.  Demand for the Company's
products is dependent upon the level of worldwide oil and gas exploration and
development activity. Such activity in turn is primarily dependent upon oil and
gas prices, which have been subject to wide fluctuation in recent years in
response to relatively minor changes in the supply and demand for oil and
natural gas, market uncertainty and a variety of additional factors that are
beyond the control of the Company. Recent worldwide oil prices have been at
their lowest levels since 1986. Continuing low prices for hydrocarbon production
have resulted in lower exploration budgets by oil companies, which has resulted
in reduced demand for the Company's seismic data acquisition equipment. It is
impossible to predict future oil and natural gas price movements or the duration
of the current environment of lower oil and natural gas prices with any
certainty. No assurances can be given as to future levels of worldwide oil and
natural gas prices, the future level of activity in the oil and gas exploration
and development industry and their relationship(s) to the demand for the
Company's products.
     
     RISK FROM SIGNIFICANT AMOUNT OF FOREIGN SALES.  Sales outside the United
States have historically accounted for a significant part of the Company's net
sales and other revenues. Foreign sales are subject to special risks inherent in
doing business outside of the United States, including the risk of war, civil
disturbances, embargo and government activities, which may disrupt markets and
affect operating results. Foreign sales are also generally subject to the risks
of compliance with additional laws, including tariff regulations and
import/export restrictions. The Company is, from time to time, required to
obtain export licenses and there can be no 

                                    15
<PAGE>

assurance that it will not experience difficulty in obtaining such licenses 
as may be required in connection with export sales.
     
     Demand for the Company's products from customers in developing countries
(including Russia and other Former Soviet Union countries as well as certain
Asian countries) is difficult to predict and can fluctuate significantly from
year to year. The Company believes that these changes in demand result primarily
from the instability of economies and governments in certain developing
countries, changes in internal laws and policies affecting trade and investment,
and because those markets are only beginning to adopt new technologies and
establish purchasing practices. These risks may adversely affect the Company's
future operating results and financial position. In addition, sales to customers
in developing countries on extended terms can present heightened credit risks
for the Company, for the reasons discussed above. See, in particular above,
"Liquidity and Capital Resources - Other" for further information concerning
these risks in those countries.
     
     RISKS RELATED TO TIMING OF PRODUCT SHIPMENTS. Due to the relatively high
sales price of the Company's products and relatively low unit sales volume, the
timing in the shipment of systems and the mix of products sold can produce
fluctuations in quarter-to-quarter financial performance. One of the factors
which may affect the Company's operating results from time to time is that a
substantial portion of its net sales and other revenues in any period may result
from shipments during the latter part of a period. Because the Company
establishes its sales and operating expense levels based on its operational
goals, if shipments in any period do not meet goals, revenues and net profits
may be adversely affected. The Company believes that factors which could affect
such timing in shipments include, among others, seasonality of end-user markets,
availability of purchaser financing, manufacturing lead times and shortages of
system components. In addition, because the Company typically operates, and
expects to continue to operate, without a significant backlog of orders for its
products, the Company's manufacturing plans and expenditure levels are based
principally on sales forecasts, which could result in inventory excesses and
imbalances from time to time.

     RISKS RELATED TO GROSS MARGIN.  The Company's gross margin percentage is a
function of the product mix sold in any period. Continuing increased percentages
of lower margin marine seismic equipment and related components in the overall
sales mix may result in margins remaining below their historically higher
levels. Other factors, such as unit volumes, inventory obsolescence, heightened
price competition, changes in sales and distribution channels, shortages in
components due to untimely supplies or inability to obtain items at reasonable
prices, and unavailability of skilled labor, may also continue to affect the
cost of sales and the fluctuation of gross margin percentages in future periods.
     
     RISKS RELATED TO YEAR 2000 ISSUES.  While the Company is currently
assessing aspects of the potential impact of the Year 2000 issue, it has not yet
completed its review. The problems actually encountered by the Company in
addressing its Year 2000 issues may be more pervasive than anticipated by
management, and if so, could have adverse effects on the Company's operations,
results of operations or financial condition. See " - Liquidity and Capital
Resources - Year 2000."

                                       16
<PAGE>

     CREDIT RISK FROM SALES ARRANGEMENTS.  The Company sells to many customers
on extended-term arrangements. Moreover, in connection with certain sales of its
systems and equipment, the Company has guaranteed certain loans from
unaffiliated parties to purchasers of such systems and equipment. In addition,
the Company has sold contracts and leases to third-party financing sources, the
terms of which often obligate the Company to repurchase the contracts and leases
in the event of a customer default or upon certain other occurrences.
Performance of the Company's obligations under these arrangements could have a
material adverse effect on the Company's financial condition. A number of
significant payment defaults by customers could have a material adverse effect
on the Company's financial position and results of operations.

     RELIANCE ON SIGNIFICANT CUSTOMERS.  A relatively small number of customers
has accounted for most of the Company's net sales, although the degree of sales
concentration with any one customer has varied from fiscal year to year.  During
fiscal 1998, 1997 and 1996 the two largest customers in each of those years
accounted for 35%, 45% and 42%, respectively, of the Company's net sales and
other revenues. The loss of either of these customers could have a material
adverse effect on the Company's sales revenues.
     
     COMPETITION.  The design, manufacture and marketing of seismic data
acquisition systems are highly competitive and are characterized by continual
and rapid changes in technology. The Company's current principal competitor for
land seismic equipment is Societe d'Etudes Recherches et Construction
Electroniques, an affiliate of Compagnie General de Geophysique which, unlike
the Company, possesses the advantage of being able to sell to an affiliated
seismic contractor.
     
     Competition in the industry is expected to intensify and could adversely
affect the Company's future results. Several of the Company's competitors have
greater name recognition, more extensive engineering, manufacturing and
marketing capabilities, and greater financial, technological and personnel
resources than those available to the Company. In addition, certain companies in
the industry have expanded their product lines or technologies in recent years
as a result of acquisitions. There can be no assurance that the Company will be
able to compete successfully in the future with existing or new competitors.
Pressures from competitors offering lower-priced products or products employing
new technologies could result in future price reductions for the Company's
products.
     
     A continuing trend toward consolidation, concentrating buying power, in the
oil field services industry may have the effect of adversely affecting the
prices and demand for the Company's products and services.

     DISRUPTION IN VENDOR SUPPLIES.  The Company's manufacturing process
requires a high volume of quality components. Certain components used by the
Company are currently provided by only one vendor. In the future, the Company
may, from time to time, experience supply or quality control problems with its
suppliers, and such problems could significantly affect its ability to meet
production and sales commitments. The Company's reliance on certain vendors, as
well as industry supply conditions generally, involve several risks, including
the possibility of a 

                                     17
<PAGE>

shortage or a lack of availability of key components, increases in component 
costs and reduced control over delivery schedules, any of which could 
adversely affect the Company's future financial results.

     PROTECTION OF INTELLECTUAL PROPERTY. The Company believes that technology
is the primary basis of competition in the industry. Although the Company
currently holds certain intellectual property rights relating to its product
lines, there can be no assurance that these rights will not be challenged by
third parties or that the Company will obtain additional patents or other
intellectual property rights in the future. Additionally, there can be no
assurance that the Company's efforts to protect its trade secrets will be
successful or that others will not independently develop products similar to the
Company's or design around any of the intellectual property rights owned by the
Company.
     
     DEPENDENCE ON PERSONNEL.  The Company's success depends upon the continued
contributions of its personnel, many of whom would be difficult to replace. The
success of the Company will depend on the ability of the Company to attract and
retain skilled employees. Changes in personnel, therefore, could adversely
affect operating results.

     RISKS RELATED TO GOVERNMENT REGULATIONS AND PRODUCT CERTIFICATION. The
Company's operations are also subject to laws, regulations, government policies,
and product certification requirements worldwide. Changes in such laws,
regulations, policies, or requirements could affect the demand for the Company's
products or result in the need to modify products, which may involve substantial
costs or delays in sales and could have an adverse effect on the Company's
future operating results.
     
     RISKS OF STOCK VOLATILITY AND ABSENCE OF DIVIDENDS. In recent years, the
stock market in general and the market for energy and technology stocks in
particular, including the Company's common stock, have experienced extreme price
fluctuations. There is a risk that stock price fluctuation could impact the
Company's operations. Changes in the price of the Company's common stock could
affect the Company's ability to successfully attract and retain qualified
personnel or complete desirable business combinations or other transactions in
the future. The Company has historically not paid cash dividends on its capital
stock, and there can be no assurances that the Company will do so in the future.

     RISKS RELATED TO ACQUISITIONS.  To implement its business plans, the
Company may make further acquisitions in the future. Acquisitions require
significant financial and management resources both at the time of the
transaction and during the process of integrating the newly acquired business
into the Company's operations. The Company's operating results could be
adversely affected if it is unable to successfully integrate such new companies
into its operations. Certain acquisitions or strategic transactions may be
subject to approval by the other party's shareholders, United States or foreign
governmental agencies, or other third parties. Accordingly, there is a risk that
important acquisitions or transactions could fail to be concluded as planned.
Future acquisitions by the Company could also result in issuances of equity
securities or the rights associated with the equity securities, which could
potentially dilute earnings per share. In addition, future acquisitions could
result in the incurrence of additional debt, taxes, or 

                                     18
<PAGE>

contingent liabilities, and amortization expenses related to goodwill and 
other intangible assets. These factors could adversely affect the Company's 
future operating results and financial position.

     OIL AND GAS OPERATIONS. The Company's oil and gas operations are subject to
the economic risks typically associated with exploration, development, and
production activities, including the necessity of significant expenditures to
drill exploratory wells. In conducting exploration and development activities,
the Company may drill unsuccessful wells and experience losses and charges to
earnings and, if oil or natural gas is discovered, there can be no assurance
that such oil or natural gas can be economically produced or satisfactorily
marketed. Historically, the markets for oil and natural gas have been volatile
and are likely to continue to be volatile in the future. The nature of the oil
and gas business involves certain operating hazards such as well blowouts,
cratering, explosions, uncontrollable flows of oil, natural gas or well fluids,
fires, formations with abnormal pressures, pollution, releases of toxic gas and
other environmental hazards and risks, any of which could result in losses to
the Company. While the Company's current practice is not to act as operator of
any drilling prospect, and while the Company does maintain insurance in
accordance with customary industry practices under the circumstances against
some, but not all, of such risks and losses, the occurrence of such an event not
fully covered by insurance could have a material adverse affect on the Company's
financial position and results of operation.

     The foregoing review of factors pursuant to the Private Securities
Litigation Reform Act of 1995 should not be construed as exhaustive.  In
addition to the foregoing, the Company wishes to refer readers to other factors
discussed elsewhere in this report as well as the Company's other filings and
reports with the Securities and Exchange Commission, including its most recent
Annual Report on Form 10-K, for a further discussion of risks and uncertainties
which could cause actual results to differ materially from those contained in
forward-looking statements. The Company undertakes no obligation to publicly
release the result of any revisions to any such forward-looking statements which
may be made to reflect the events or circumstances after the date hereof or to
reflect the occurrence of unanticipated events.
     

     ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     The Company is not yet required to provide the disclosures required by
Regulation S-K Item 305 pursuant to General Instruction 1. to Paragraphs 305(a),
305(b), 305(c), 305(d), and 305(e) of Item 305. The Company's sales and
financial instruments are principally denominated in U.S. dollars and the
Company does not invest or intend to invest in derivative financial instruments
or derivative commodity instruments. The Company's principal market risk is
floating interest rate risk on indebtedness under its Credit Agreement.

                                    19
<PAGE>

PART II - OTHER INFORMATION.

     ITEM 1.   LEGAL PROCEEDINGS

     On September 24, 1997, a purported class action lawsuit was filed against
the Company and the former president and chief executive officer, and an
executive vice president, of the Company, in the U.S. District Court for the
Southern District of Texas, Houston Division. The action, styled NORMAN TOCK V.
INPUT/OUTPUT, INC., GARY D. OWENS AND ROBERT P. BRINDLEY, alleges violations of
Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, and state
statutory and common law fraud provisions. The action was filed on behalf of
purchasers of common stock of the Company that purchased shares during the
period from September 17, 1996 through March 18, 1997. The complaint seeks
damages in an unspecified amount plus costs and attorney's fees. The complaint
alleges misrepresentations and omissions in public filings and announcements
concerning the Company's business, sales and products, and disputes certain
accounting methodologies employed by the Company. On October 21, 1997, a
stipulation and order was entered by the court, extending the time for responses
to the complaint by the defendants pending entry of an order appointing lead
plaintiff and lead counsel. An amended complaint was filed on April 17, 1998.
Defendants filed a motion to dismiss and brief in support thereof on June 8,
1998. Plaintiff has filed papers in opposition to that motion. Defendants have
filed a reply to Plaintiff's opposition. No hearing on the motion to dismiss has
been scheduled. The Company believes that the plaintiff's allegations are
without merit and that there are meritorious defenses to the allegations and
intends to defend the action vigorously.

     In the ordinary course of business, the Company has been named in other
various lawsuits. While the final resolution of these matters may have an impact
on the Company's consolidated financial results for a particular reporting
period, management believes that the ultimate resolution of these matters will
not have a material adverse impact on the Company's financial position, results
of operations or liquidity.


     ITEM 2.   CHANGES IN SECURITIES

     During the fiscal quarter ended August 31, 1998, the Company made no sales
of its equity securities that were not registered under the Securities Act of
1993, as amended.


     ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K
          
         (a)  List of documents filed as Exhibits.
             
              10.1      - Agreement and Plan of Merger between I/O Marine, Inc.,
                          Input/Output, Inc., DigiCourse, Inc. and The Laitram 
                          Corporation as of September 30, 1998.

              27.1      - Financial Data Schedule (included in EDGAR copy only)

                                             20
<PAGE>

         (b)  Reports on Form 8-K

                 No reports on Form 8-K were filed by the Company during the 
                 quarter ended August 31, 1998.     






                                             21
<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.

                                        INPUT/OUTPUT, INC.


                                        By: /s/ Ronald A. Harris
                                            -----------------------------
                                            Ronald A. Harris
                                            Vice President and Controller
                                            (Chief Accounting Officer)

Dated: October 14, 1998

                                  22

<PAGE>

                         AGREEMENT AND PLAN OF MERGER
                                       

     This AGREEMENT and PLAN OF MERGER (the "Agreement") is made and entered 
into as of September 30, 1998, by and among I/O Marine, Inc. ("I/O Marine"), 
a Louisiana corporation; Input/Output, Inc. ("I/O"), a Delaware corporation 
and the sole stockholder of I/O Marine; DigiCourse, Inc. ("DigiCourse"), a 
Louisiana corporation; and The Laitram Corporation ("Stockholder"), a 
Louisiana corporation and the sole stockholder of DigiCourse.  I/O, I/O 
Marine, DigiCourse and Stockholder are each a "party" and collectively are 
the "parties" to this Agreement.

                                   RECITALS

     The Boards of Directors of each of the parties have each approved the 
merger of I/O Marine with and into DigiCourse (the "Merger"), pursuant to the 
terms and subject to the conditions of this Agreement.  Each party desires to 
make certain representations, warranties and agreements in connection with 
the Contemplated Transactions (defined below).  The parties intend, for 
federal income Tax purposes, that the Contemplated Transactions shall qualify 
as a reorganization under the provisions of Section 368 of the Internal 
Revenue Code of 1986, as amended, and related rules and regulations ("Code").

     It is the intent of the parties that, as of September 30, 1998, at 11:59 
P.M., all economic benefits and risks of any kind and nature of DigiCourse 
are transferred from Stockholder to the Surviving Corporation.  To the extent 
any provision of this Agreement and its exhibits is in conflict with this 
aforementioned principle, the parties agree that this principle shall be 
controlling.

     NOW, THEREFORE, in consideration of the mutual benefits to be derived 
and the representations and warranties, conditions, covenants and promises 
herein contained, and other good and valuable consideration the receipt and 
sufficiency of which are hereby acknowledged, the parties agree as follows:

1.   DEFINITIONS

     For purposes of this Agreement, the following terms have the meanings 
specified or referred to in this Section 1:

     "ACCOUNTING PROCEDURES" are defined in the attached Exhibit 1.

     "ACCOUNTS RECEIVABLE" is defined in Section 3.8.

     "ACQUISITION" is defined in Section 9.29.

     "ADVERSE CONSEQUENCES" means all actions, suits, proceedings, hearings, 
investigations, charges, complaints, claims, demands, injunctions, judgments, 
orders, decrees, 

<PAGE>

rulings, damages, dues, penalties, fines, costs, liabilities, obligations, 
liens, losses, expenses, and fees, including court costs and attorneys' fees 
and expenses, that have a net adverse effect on the financial position of a 
Person.
     
     "AFFILIATE" means any person that, directly or indirectly, controls, or 
is controlled by or under common control with, another person.  For the 
purposes of this definition, "CONTROL" (including the terms "CONTROLLED BY" 
and "UNDER COMMON CONTROL WITH"), as used with respect to any person, means 
the power to direct or cause the direction of the management and policies of 
the person, directly or indirectly, whether through the ownership of voting 
securities, by contract or otherwise.

     "APPLICABLE CONTRACT" means any Contract under which, prior to the 
Economic Closing Date, (a) DigiCourse or Limited has or may acquire any 
rights, (b) DigiCourse or Limited has or may become subject to any obligation 
or liability, or (c) any asset owned or used by DigiCourse or Limited is or 
may become bound.

     "BALANCE SHEET" is defined in Section 3.4.

     "BREACH" means any material inaccuracy, breach, failure, claim, 
occurrence, or circumstance that breaches a representation, warranty, 
covenant, obligation, or other provision of this Agreement or any instrument 
delivered pursuant to Section 2.4 of this Agreement.  A "Breach" will be 
deemed to have occurred if there is or has been any material inaccuracy in or 
material breach of, or any material failure to perform or comply with, such 
representation, warranty, covenant, obligation, or other provision. 

     "CERTIFICATE OF MERGER" is defined in Section 2.1.

     "CLOSING" is defined in Section 2.4.

     "CLOSING DATE" means the date on which the Closing actually takes place.

     "ECONOMIC CLOSING NET WORKING CAPITAL" is defined in Section 2.5.

     "CODE" is defined in the Recitals of this Agreement.

     "CONSENT" means any approval, consent, ratification, waiver or other 
authorization (including any Governmental Authorization).

     "CONSTITUENT CORPORATIONS" is defined in Section 2.2.

     "CONTEMPLATED TRANSACTIONS" means all of the transactions contemplated 
by this Agreement, including:

     (a)  the Merger and the delivery of the shares of I/O Common Stock in 
accordance with Section 2 hereof; and

                                          2
<PAGE>

     (b)  the execution, delivery, and performance of all agreements
contemplated by this Agreement.

     "CONTRACT" means any material agreement, contract, promise or undertaking
that is legally binding.

     "COPYRIGHTS" is defined in Section 3.21.

     "DEFICIT NET WORKING CAPITAL" is defined in Section 2.5.

     "DIGICOURSE" is defined in the first paragraph of this Agreement.

     "DISCLOSURE LETTER" means the disclosure letter delivered by DigiCourse 
to I/O within fifteen (15) days after the date of the signing of this 
Agreement, as it may be supplemented under Section 9.17.
     
     "DOCUMENTATION" means all documents, other written material (including 
user and support manuals, flowcharts and other supporting documentary, 
architecture documents, design documents, requirements documents, 
specifications documents and computer material), stored in any medium, and 
source codes which have been created by or at the request of DigiCourse or 
Limited, or acquired by DigiCourse or Limited, relating to, explaining or 
assisting in the use of Products.

     "ECONOMIC CLOSING DATE" means September 30, 1998.

     "EFFECTIVE TIME" shall have the same meaning as defined in Section 2.1.

     "ENCUMBRANCE" means any pledge, security interest or encumbrance of any 
kind.

     "ENVIRONMENT" means soil, land surface or subsurface strata, surface 
waters (including navigable waters, ocean waters, streams, ponds, drainage 
basins, and wetlands), groundwaters, drinking water supply, stream sediments, 
ambient air (including indoor air), plant and animal life and any other 
environmental medium or natural resource.

     "ENVIRONMENTAL, HEALTH, AND SAFETY LIABILITIES" means any cost, damages, 
expense, liability, obligation, or other responsibility arising from or under 
Environmental Law or Occupational Safety and Health Law.
     
     "ENVIRONMENTAL LAW" means any Legal Requirement that relates to (a) the 
control of any potential pollutant or protection of the air, water or land, 
(b) solid, gaseous or liquid waste generation, handling, treatment, storage, 
disposal or transportation, and (c) exposure to hazardous, toxic or other 
substances alleged to be harmful.

     "ERISA" means the Employee Retirement Income Security Act of 1974 or any 
successor law, and regulations and rules issued pursuant to that Act or any 
successor law.

                                          3
<PAGE>

     "EXCESS NET WORKING CAPITAL" is defined in Section 2.5.

     "FACILITIES" means any real property, leaseholds, or other interests 
currently or formerly owned or operated by DigiCourse or Limited and any 
buildings, plants, structures, or equipment currently or formerly owned or 
operated by DigiCourse or Limited. 

     "GAAP" means generally accepted United States accounting principles then 
applicable.

     "GOVERNMENTAL AUTHORIZATION" means any Consent or license made available 
by or under the authority of any Governmental Body pursuant to any Legal 
Requirement.

     "GOVERNMENTAL BODY" means any:

     (a)  nation, state, county, parish, city, town, village, district, or 
other governmental jurisdiction of any nature;

     (b)  federal, state, local, municipal, foreign, or other government;

     (c)  governmental or quasi-governmental authority of any nature 
(including any governmental agency, branch, department, official, or entity 
and any court or other tribunal); or

     (d)  body exercising, or entitled to exercise, any administrative, 
executive, judicial, legislative, police, regulatory, or taxing authority or 
power of any governmental nature.

     "HSR" is defined in Section 6.8.

     "INDEMNIFIED PERSON" is defined in Section 8.4.

     "INTELLECTUAL PROPERTY ASSETS" is as defined in Section 3.21.

     "INTERIM BALANCE SHEET" is defined in Section 3.4.

     "INVESTMENT LETTER" is defined in Section 2.4.

     "I/O" is defined in the Recitals of this Agreement.

     "I/O COMMON STOCK" means the common stock of I/O, par value $0.01 per 
share.
     
     "I/O INDEMNIFIED PERSON" is defined in Section 8.2.
     
     "I/O MARINE" is defined in the Recitals of this Agreement.
     
     "I/O MARINE COMMON STOCK" is defined in Section 5.5.

                                          4
<PAGE>

     "KMPG" means the public accounting firm of KMPG Peat Marwick LLP.

     "KNOWLEDGE" or "KNOWN" means any fact that is actually known by any of 
the following individuals: 
     
          (a)  in the case of Stockholder and DigiCourse, the following
     individuals - James M. Lapeyre, Jr., Roy Kelm, Lawrence P. Oertling, Barry
     L. LaCour, James W. Evans, Robbert W. Vorhoff, James T. Cronvich or Franck
     F. LaBiche; and 
     
          (b)  in the case of I/O and I/O Marine, the following individuals -
     Zeke Zeringue, Axel Sigmar, Gay Mayeux, Ronald Harris, Chris Wolfe, George
     Gentry, Thomas Connolly or Robert Brindley.

     "LBCL" means the Louisiana Business Corporation Law.

     "LEGAL REQUIREMENT" means any legally binding order, constitution, law,
ordinance, regulation, statute, or treaty of a Governmental Body.

     "LIMITATIONS" is defined in Section 3.6(b).

     "LIMITED" is defined in Section 3.3.

     "MARKS" is defined in Section 3.21.

     "MERGER" is defined in the Recitals of this Agreement.
     
     "MERGER CONSIDERATION" is defined in Section 2.3.

     "NET WORKING CAPITAL" means DigiCourse's (a) Cash, plus Trade 
Receivables (Net), plus Other Receivables, plus Other Current Assets, plus 
Inventories; reduced by (b) Accounts Payable Trade, plus Other Accrued 
Liabilities (exclusive of the liabilities listed in Section 2.6).

     "NYSE" means The New York Stock Exchange Inc.

     "OCCUPATIONAL SAFETY AND HEALTH LAW" means any Legal Requirement 
designed to provide safe and healthful working conditions and to reduce 
occupational safety and health hazards.

     "ORDER" means any award, decision, injunction, judgment, order, ruling, 
subpoena, or verdict entered, issued, made, or rendered by any court, 
administrative agency, or other Governmental Body or, if binding, by any 
arbitrator.

                                          5
<PAGE>

     "ORDINARY COURSE OF BUSINESS" means an action taken by a Person if such 
action is both consistent with the past practices of such Person and is taken 
in the ordinary course of the normal day-to-day operations of such Person; 
and such action is similar in nature and magnitude to actions customarily 
taken in the ordinary course of the normal day-to-day operations of other 
Persons that are similar in size and operations to the Person in question.

     "ORGANIZATIONAL DOCUMENTS" means (a) the articles or certificate of 
incorporation and the bylaws of a corporation; (b) any charter or similar 
document adopted or filed in connection with the creation, formation, or 
organization of a Person; and (c) any amendment to any of the foregoing.

     "PATENTS" is defined in Section 3.21.

     "PAYMENT DATE" is defined in Section 2.5.

     "PERSON" means any individual, corporation (including any non-profit 
corporation), general or limited partnership, limited liability company, 
joint venture, estate, trust, association, organization, labor union, or 
other entity or Governmental Body.

     "PLAN" or "PLANS" has the same meaning as defined in Section 3.13.

     "PRIVATE PLACEMENT MEMORANDUM" means that certain private placement 
memorandum, including all attachments, of I/O, dated September 30, 1998, 
delivered to Stockholder.

     "PROCEEDING" means any action, binding arbitration, audit, hearing, 
formal investigation, litigation, or suit (whether civil, criminal or 
administrative) commenced, brought, conducted, or heard by or before any 
Governmental Body or arbitrator.
     
     "PRODUCTS" means the devices and related Software manufactured and/or 
assembled and marketed by DigiCourse and Limited.

     "PROPRIETARY RIGHTS AGREEMENT" is defined in Section 3.20.

     "REASONABLE EFFORTS" means the commercially reasonable efforts that a 
prudent Person desirous of achieving a result would use and expend in similar 
circumstances to undertake reasonably to ensure that such result is achieved 
expeditiously.

     "REGISTRATION RIGHTS AGREEMENT" is defined in Section 2.4.

     "RELEASE" is defined in Section 2.4.  

     "REPRESENTATIVE" with respect to a particular Person, means any 
director, officer, employee, agent, consultant, advisor, or other 
representative of such Person with respect to a particular matter, including 
legal counsel, accountants, and financial advisors with respect 

                                          6
<PAGE>

to a particular matter.

     "RIGHTS" means the intellectual property and contract rights, related to 
the Products, which are owned or licensed by DigiCourse or Limited in the 
development, support, marketing, production, licensing or sale of the 
Products; and all Intellectual Property Assets owned or licensed by 
DigiCourse or Limited in connection with DigiCourse's or Limited's business.  
"RIGHTS" does not include any of the Shared Software and Rights or any of the 
foregoing used as a shared service described on Exhibit 2.7, with Stockholder 
or any Stockholder Affiliate.

     "SEC" means the United States Securities and Exchange Commission.

     "SECURITIES ACT" means the Securities Act of 1933 or any successor law, 
and regulations and rules issued pursuant to that Act or any successor law.

     "SHARES" means the 1,080,000 shares, no par value per share, of 
DigiCourse common stock constituting all of the issued and outstanding 
capital stock of DigiCourse.

     "SHARED SOFTWARE AND RIGHTS" is defined in Section 2.12.  

     "SOFTWARE" means all computer programs, including firmware acquired by 
DigiCourse (and whether written or created for DigiCourse by any present or 
former consultant or employee of DigiCourse or otherwise commissioned by 
DigiCourse), or licensed for sublicensing by DigiCourse, together with any 
modifications, enhancements, additions or replacements.  "SOFTWARE" does not 
include Shared Software and Rights or any of the foregoing used as a shared 
service described on Exhibit 2.7, with Stockholder or any Stockholder 
Affiliates.

     "STOCKHOLDER" is defined in the Recitals of this Agreement.

     "STOCKHOLDER AFFILIATE" means Affiliates of Stockholder but excludes 
DigiCourse and Limited.

     "STOCKHOLDER INDEMNIFIED PERSON" is defined in Section 8.3.

     "SUBSIDIARY" with respect to any specified Person, means any corporation 
or other Person of which securities or other interests having the power to 
elect a majority of that corporation's or other Person's board of directors 
or similar governing body, or otherwise having the power to direct the 
business and policies of that corporation or other Person (other than 
securities or other interests having such power only upon the happening of a 
contingency that has not occurred) are held by the specified Person or one or 
more of its subsidiaries.

     "SURVIVING CORPORATION" means DigiCourse, as survivor of the Merger.

                                          7
<PAGE>

     "TAX" or "TAXES" mean any federal, state, local or foreign income, 
sales, real or personal property or other taxes, assessments, levies, 
imposts, duties, or other charges of any nature whatsoever commonly referred 
to as a "tax" (including without limitation interest and penalties) imposed 
by any law, rule or regulation. 

     "TAX RETURN" means any return (including any information return), 
report, statement, schedule, notice, form, or other document or information 
submitted to any Governmental Body in connection with the determination, 
assessment, collection, or payment of any Tax.

     "THREATENED" means a claim, Proceeding, dispute, action, or other matter 
will be deemed to have been "Threatened" if any written demand or statement 
has been received or any written notice has been received or any Known action 
has been taken by a Claimant that would lead a prudent Person having that 
Knowledge to conclude that such a claim, Proceeding, dispute, action, or 
other matter will be asserted, commenced, taken, or otherwise pursued in the 
future against a specified Person.

     "TRADE SECRETS" is defined in Section 3.21.
     
     "TRANSFER PLAN" is defined in Exhibit 2.11.

2.   THE MERGER

     2.1  EFFECTIVE TIME OF THE MERGER.  Subject to the provisions of this 
Agreement, the certificate of merger in the form of EXHIBIT 2.1 (the 
"Certificate of Merger") shall be executed and acknowledged as required by 
the LBCL and delivered to the Office of the Secretary of State of the State 
of Louisiana for filing, pre-positioned in New Orleans for immediate filing, 
and then filed as soon as practicable on or after the Closing Date.  The 
Merger shall become effective upon the filing of the Certificate of Merger 
with the Secretary of State of the State of Louisiana or at such time 
thereafter as is provided in the Certificate of Merger (the "Effective Time").

     2.2  EFFECTS OF THE MERGER.   

     (a)  At the Effective Time, the separate existence of I/O Marine shall 
cease, and I/O Marine shall be merged with and into DigiCourse (DigiCourse 
and I/O Marine are sometimes referred to herein as the "Constituent 
Corporations"); the Articles of Incorporation of DigiCourse as in effect 
immediately prior to the Effective Time shall be amended and restated in the 
Certificate of Merger and shall be the Articles of Incorporation of the 
Surviving Corporation until thereafter amended; the Bylaws of DigiCourse 
shall be amended and restated immediately prior to the Effective Time and 
shall be the Bylaws of the Surviving Corporation until thereafter amended; 
the duly elected and incumbent Board of Directors of I/O Marine as 
constituted immediately prior to the Effective Time shall be the Board of 
Directors of the Surviving Corporation, and shall serve until their 
successors are duly elected and qualified; and the duly elected and incumbent 
officers of I/O Marine as in 

                                          8
<PAGE>

office immediately prior to the Effective Time shall be the officers of the 
Surviving Corporation, and shall serve until the Board of Directors of 
Surviving Corporation takes action in respect of such service.

      (b) At and after the Effective Time, the Surviving Corporation shall 
possess all the rights, privileges, powers and franchises, whether of a 
public or a private nature, and be subject to all the restrictions, 
disabilities and duties, of each of the Constituent Corporations; and all of 
the rights, privileges, powers and franchises of each of the Constituent 
Corporations, and all property, real, personal and mixed, and all debts due 
to either of the Constituent Corporations on whatever account, shall be 
vested in the Surviving Corporation and all contractual rights, property, 
rights, privileges, powers and franchises, and all and every other interest 
shall thereafter be the property of the Surviving Corporation as they were of 
the respective Constituent Corporations, and the title to any real estate 
vested by deed or otherwise in either of the Constituent Corporations shall 
not revert or be in any way impaired; but all rights of creditors and all 
liens upon any property of either of the Constituent Corporations shall be 
preserved unimpaired, and all debts, liabilities and duties of the respective 
Constituent Corporations shall thenceforth attach to the Surviving 
Corporation, and may be enforced against it to the same extent as if said 
debts and liabilities had been incurred or contracted by it.

     2.3  SHARE CONVERSIONS.  At the Effective Time, by virtue of the Merger 
and without any action on the part of the holder of any of the Shares of 
DigiCourse:

     (a)  COMMON STOCK OF I/O MARINE.  The Merger will automatically convert 
each share of common stock of I/O Marine into one share of common stock of 
DigiCourse.

     (b)  CONVERSION OF THE SHARES.  The Shares shall be converted into the 
right to receive from the Surviving Corporation in exchange for said Shares a 
total of 5,794,000 fully paid and non-assessable shares of I/O Common Stock 
(the "Merger Consideration").   At the Effective Time, each of the Shares, 
when so converted, shall no longer be deemed to be outstanding and shall 
automatically be canceled and retired and shall cease to exist, and the 
holder of a certificate representing any such Shares shall cease to have any 
rights with respect thereto, except the Merger Consideration, upon the 
surrender of such certificate, without interest.  

     2.4  CLOSING.  The closing of the Contemplated Transactions (the 
"Closing") provided for in this Agreement will take place at the offices of 
Haynes and Boone, L.L.P., 1000 Louisiana, Suite 4300, Houston, Texas 77002, 
upon such time and date as the parties may agree; or, if they cannot or have 
not agreed, such specified date of which any party shall have notified the 
others by notice given at least five business days in advance of the 
specified date, but in no event prior to (i) consent under the HSR Act, (ii) 
the expiration of five days after the delivery by I/O of the Private 
Placement Memorandum, (iii) the expiration of five days after delivery of the 
Disclosure Letter by DigiCourse, or (iv) the expiration of two days after the 
delivery of any supplement to the Disclosure Letter.  Either I/O or 
DigiCourse (or on occasion each) may delay the Closing Date up to and 
including November 30, 1998, if 

                                          9
<PAGE>

necessary to permit conditions to become satisfied that are not satisfied at 
the time such delay is effected.  At the Closing:

     (a)  Stockholder will deliver to I/O:

          (i)  an investment letter in the form of EXHIBIT 2.4(a)(i) executed by
     the Stockholder ("Investment Letter");
          
         (ii)  the certificates representing the Shares, with appropriate stock
     powers duly executed by Stockholder and signatures Medallion guaranteed;

        (iii)  the Registration Rights Agreement ("Registration Rights
     Agreement") in the form of the attached Exhibit 2.4 (a) (iii), executed by
     the Stockholder;
          
         (iv)  the Non-Competition Agreement ("Non-Competition Agreement") in
     the form of the attached Exhibit 2.4(a)(iv) executed by Stockholder; and 

          (v)  the Stockholder's Release in the form of the attached Exhibit
     2.4(a)(v) executed by Stockholder (the "Release").

     (b)  I/O and/or I/O Marine will deliver to Stockholder:

          (i)  certificates for the shares of I/O Common Stock properly signed
     by those Representatives of I/O whose signatures are required for the
     validity of the Merger Consideration constituting the Merger Consideration,
     registered in the name of the Stockholder;
          
         (ii)  the Registration Rights Agreement executed by I/O; and
          
        (iii)  the Non-Competition Agreement executed by I/O.

     2.5  DETERMINATION OF ECONOMIC CLOSING NET WORKING CAPITAL.  During the 
sixty (60) days following the Economic Closing Date, KPMG will determine Net 
Working Capital of DigiCourse as of the Economic Closing Date ("Economic 
Closing Net Working Capital").  Economic Closing Net Working Capital will be 
determined by KPMG, the outside accountants of all parties, applying the 
accounting procedures in the attached Exhibit 1.  The parties stipulate that 
the component of Inventory acquired from Syntron has a fair market value of 
$1,525,000 for financial accounting purposes.  "Excess Net Working Capital" 
shall exist if, and to the extent that, Economic Closing Net Working Capital 
is greater than $11,500,000 ("Base Amount").  "Deficit Net Working Capital" 
shall exist if, and to the extent that, Economic Closing Net Working Capital 
is less than Base Amount.

     (a)  In the event there is Excess Net Working Capital:

                                          10
<PAGE>

          (i)  The Surviving Corporation shall, to the extent of the Excess Net
     Working Capital, pay to the Stockholder an amount equal to the liabilities
     identified in Section 2.6(b) by the date ("Payment Date") that is five
     business days after the determination of Economic Closing Net Working
     Capital.  I/O shall, in accordance with this Agreement, transfer to the
     Surviving Corporation an amount of cash equal to, and to be used to pay,
     the liabilities identified in Section 2.6(b) in accordance with the
     previous sentence.   

         (ii)  To the extent said Excess Net Working Capital exceeds the
     liabilities identified in Section 2.6(b), I/O shall, in accordance with
     this Agreement transfer to the Surviving Corporation to pay to the
     Stockholder by the Payment Date as additional consideration an amount of
     cash, equal to the Excess Net Working Capital less the liabilities
     identified in Section 2.6(b) paid pursuant to Section 2.5(a)(i).

        (iii)  If the liabilities identified in Section 2.6(b) exceed the Excess
     Net Working Capital, then to the extent of such excess, Stockholder will be
     deemed, as a capital contribution, to automatically assume on the Payment
     Date and agree to pay, perform and discharge when due and payable, the
     liabilities and obligations of DigiCourse identified in Section 2.6(b)
     (after the payment referred to in Section 2.5(a)(i) above), whether due and
     payable or accrued for future payment but only to the extent such
     liabilities exceed Excess Net Working Capital.

     (b)  If there is Deficit Net Working Capital, the Stockholder will, as a 
capital contribution, pay to the Surviving Corporation by the Payment Date an 
amount equal to said deficit.  Furthermore, Stockholder will be deemed, as a 
capital contribution, to automatically assume and agree to pay, perform and 
discharge, when due and payable, the liabilities and obligations of 
DigiCourse identified in Section 2.6, whether due and payable or accrued for 
future payment.

     (c)  Any payment due under this Section 2.5 will be paid by the Payment 
Date and shall include interest thereon from the first to occur of (i) 30 
days after the Economic Closing Date or (ii) the Payment Date, through the 
date of payment, at a floating rate equal to the prime rate of interest shown 
from time to time in the "Money Rates" section of The Wall Street Journal.

     The Net Working Capital adjustment is outside of and is not subject to 
any of the limitations set forth in the indemnification provisions of Section 
8.

     2.6  LIABILITIES.  For purposes of Section 2.5, the identified 
liabilities, whether due and payable or accrued for future payment, are as 
follows:

     (a)  all Tax obligations attributable to periods preceding the Economic 
Closing Date; and

                                          11
<PAGE>

     (b)  all amounts originally owed to Stockholder or Stockholder Affiliates
(whether assigned after origination) arising on or before the Economic Closing
Date.  

     Surviving Corporation shall be responsible for the liabilities 
identified in this Section 2.6 to the extent, and only to the extent, of any 
Excess Net Working Capital.  In all other respects, Surviving Corporation and 
I/O shall have no obligation or commitment to discharge the obligations 
identified in this Section 2.6, and such obligations shall be solely the 
responsibility of Stockholder.

     2.7  CONTINUED SERVICES.  Stockholder agrees to provide to the Surviving 
Corporation and to Limited, effective from the Economic Closing Date, the 
shared support services listed, for the consideration, and for the time, 
described, in the agreement attached as Exhibit 2.7.

     2.8  CANCELLATION.  Stockholder, on behalf of itself and Stockholder 
Affiliates, agrees upon Closing to cancel all Contracts between DigiCourse 
and Limited, on the one hand, and Stockholder and Stockholder Affiliates on 
the other hand, except for this Agreement and those agreements entered into 
pursuant to this Agreement.
     
     2.9  DIRECTOR.  Immediately following Closing, I/O will elect James M. 
Lapeyre, Jr. to the I/O Board of Directors with a term expiring at the I/O 
annual stockholder meeting in the calendar year 2000.

     2.10 LEASED FACILITIES.  At the Economic Closing Date, Stockholder 
agrees to lease, or to cause the lease of, to Surviving Corporation, certain 
facilities historically used by DigiCourse, that are described in Exhibit 
2.10, on the terms and conditions, and for the consideration, provided in the 
attached Exhibit 2.10.

     2.11 WORKFORCE.  Transfer of the DigiCourse workforce from Stockholder's 
corporate group and benefit regime to I/O's corporate group and benefit 
regime will be carried out according to the Transfer Plan, attached as 
Exhibit 2.11. All DigiCourse salary and benefit expenses after the Economic 
Closing Date shall be for the account of, and borne by, the Surviving 
Corporation. 

     2.12 SHARED SOFTWARE AND RIGHTS.  As used in this Agreement, "Shared 
Software and Rights" means all items that constitute Software or Rights as 
defined in this Agreement owned or licensed by Stockholder or a Stockholder 
Affiliate and shared by DigiCourse or Limited.  Stockholder agrees that, to 
the extent it can do so without expense (other than nominal expense) or 
inconvenience or reduction of the number of licenses owned by Stockholder or 
any Stockholder Affiliate, it will license the Surviving Corporation to use 
the Shared Software and Rights and, otherwise, will upon request by the 
Surviving Corporation use Reasonable Efforts to assist it in obtaining the 
necessary license to use the Shared Software and Rights.

                                          12
<PAGE>

     2.13 POST ECONOMIC CLOSING.  DigiCourse shall continue to operate in the 
Ordinary Course of Business through the Closing.  However, upon Closing, 
DigiCourse will be stipulated to have been operated from the Economic Closing 
Date through the Closing Date, for the benefit, risk and burden, and at the 
expense of, Surviving Corporation.  After the Economic Closing Date, 
Stockholder will render the services, lease space and otherwise perform all 
as set forth in accordance with the Exhibits attached to this Agreement.  
Furthermore, Stockholder will continue to charge DigiCourse for all services, 
expenses, charges and allocations (other than those set forth in the previous 
sentence) in accordance with the practice and procedures utilized by 
Stockholder and DigiCourse during the preceding twelve (12) month period.  
(Included, without limitation, in said allocations shall be DigiCourse's 
share of Tax. DigiCourse's share of income taxes incurred after the Economic 
Closing Date shall be calculated by applying a rate of thirty-four percent 
(34%) for federal income tax purposes and a rate of eight percent (8%) for 
state income tax purposes to net income incurred by DigiCourse after the 
Economic Closing Date.) Said services, expenses, charges and allocations 
shall be reflected in an intercompany account as a debt owed by DigiCourse to 
Stockholder.  Surviving Corporation shall be responsible to pay and shall 
assume (i) any DigiCourse intercompany debt incurred after the Economic 
Closing Date, and (ii) any other debt or charge either (a) incurred by 
Stockholder for the account of DigiCourse after the Economic Closing Date or 
(b) incurred by DigiCourse after the Economic Closing Date.  Promptly 
following Closing, Surviving Corporation shall reimburse Stockholder for all 
of the foregoing incurred by or for the benefit of DigiCourse after the 
Economic Closing Date.  Except as set forth above, Surviving Corporation 
shall retain all DigiCourse revenues received after the Economic Closing Date 
and prior to Closing.

3.   REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER AND DIGICOURSE

     Stockholder, but only with respect to Section 3.1 below as it relates to 
Stockholder, and DigiCourse, with respect to all other matters in this 
Article 3, represent and warrant to I/O, except as set forth in the 
Disclosure Letter, as follows:

     3.1  AUTHORITY; NO CONFLICT.

     (a)  This Agreement constitutes the legal, valid, and binding obligation 
of DigiCourse and the Stockholder, enforceable against DigiCourse and the 
Stockholder in accordance with its terms. 

     (b)  Neither the execution and delivery of this Agreement nor the 
consummation or performance of any of the Contemplated Transactions will, 
directly or indirectly (with or without notice or lapse of time):

          (i)  contravene, conflict with, or result in a violation of (A) any
     provision of the Organizational Documents of DigiCourse, or (B) any
     resolution adopted by the board of directors or the Stockholder of
     DigiCourse;


                                          13
<PAGE>

         (ii)  contravene, conflict with, or result in a violation of any Order
     to which DigiCourse or Stockholder, or any of the assets owned or used by
     DigiCourse, may be subject;
     
        (iii)  contravene, conflict with, or result in a violation or breach of
     any provision of, or give any Person the right to declare a default or
     exercise any remedy under, or to accelerate the maturity or performance of,
     or to cancel, terminate, or modify, any Applicable Contract over $60,000 in
     any twelve (12) month period; or
     
         (iv)  result in the imposition or creation, pursuant to an Applicable
     Contract over $60,000 in any twelve (12) month period, of any Encumbrance
     upon or with respect to any of the assets owned or used by DigiCourse.
     
     Except for satisfaction of HSR requirements, DigiCourse and Stockholder 
are not required to give any notice to or obtain any Consent from any Person 
in connection with the execution and delivery of this Agreement or the 
consummation or performance of any of the Contemplated Transactions.
     
     (c)  Stockholder is acquiring the shares of I/O Common Stock for its own 
account and not with a view to their distribution within the meaning of 
Section 2(11) of the Securities Act. Prior to the date of this Agreement, the 
Stockholder has received a copy of the Private Placement Memorandum and has 
had an adequate opportunity to review and understand the Private Placement 
Memorandum, and to ask questions of and receive answers from I/O and I/O 
Marine.
     
     (d)  The Stockholder is, and on the Closing Date will be, the record and 
beneficial owner and holder of all of the Shares, free and clear of all 
Encumbrances. 
     
     3.2  ORGANIZATION AND GOOD STANDING.  DigiCourse is a corporation duly 
organized, validly existing, and in good standing under the laws of the State 
of Louisiana, with full corporate power and authority to conduct its business 
as it is now being conducted, to own or use the properties and assets that it 
purports to own or use, and to perform all its obligations under Applicable 
Contracts.  Part 3.2 of the Disclosure Letter contains an accurate list of 
the other jurisdictions in which DigiCourse is authorized to transact 
business.  DigiCourse is duly qualified to transact business as a foreign 
corporation and is in good standing under the laws of each state or other 
jurisdiction in which failure to qualify or be in good standing could have a 
material adverse effect on DigiCourse.
     
     3.3  CAPITALIZATION.  The authorized equity securities of DigiCourse 
consist of 2,500,000 shares of common stock, no par value, of which 1,080,000 
shares are issued and outstanding and constitute the Shares. All of the 
outstanding equity securities of DigiCourse have been duly authorized and 
validly issued and are fully paid and nonassessable. Except for this 
Agreement, there is no Contract relating to the issuance, sale, or transfer 
of any equity securities or other securities of DigiCourse. The outstanding 
equity securities or other securities of DigiCourse were issued in compliance 
with all Legal Requirements.  At Closing, 

                                      14
<PAGE>

DigiCourse will own beneficially and of record all equity interests in 
Limited.  DigiCourse Limited, a United Kingdom corporation ("Limited"), is 
beneficially owned 100% by DigiCourse even though Stockholder is the record 
owner of one-half of Limited.  However, pursuant to a Declaration of 
Nomineeship dated May 18, 1992,  Stockholder declared that it holds a 50% 
interest in Limited in Trust for the benefit of DigiCourse all in accordance 
with said declaration.  At or prior to Closing, Stockholder will execute any 
and all documents required to establish that DigiCourse owns 100% of Limited. 
Limited is a company duly organized, validly existing and in good standing 
under the laws of United Kingdom with full corporate power and authority to 
conduct its business as it is now being conducted, to own or use the 
properties and assets that it purports to own or use and to perform all its 
obligations under Applicable Contracts.  DigiCourse does not own, nor does it 
have any Contract to acquire, any other equity securities or other securities 
of any Person or any direct or indirect equity or ownership interest in any 
other business and is not a party to any joint venture, teaming agreement, 
partnership or similar entity or enterprise. Except as stated above, there 
are no preemptive or other outstanding rights, options, warrants, conversion 
rights, stock appreciation rights, redemption rights, repurchase rights, 
agreements, arrangements or commitments to issue or to sell any shares of 
capital stock or other securities of Limited or any of its subsidiaries or 
any securities or obligations convertible or exchangeable into or exercisable 
for, or giving any Person a right to subscribe for or acquire, any securities 
of Limited and no securities or obligation evidencing such rights are 
authorized, issued or outstanding. Limited does not have outstanding any 
bonds, debentures, notes or other obligations the holders of which have the 
right to vote (or convertible into or exercisable for securities having the 
right to vote) with the stockholder of Limited on any matter.
     
     3.4  FINANCIAL STATEMENTS.  DigiCourse has delivered to I/O and will 
attach to the Disclosure Letter: (a) unaudited financial statements 
consisting of statements of assets, liabilities and stockholder's equity of 
DigiCourse as of March 31 for each of the years 1994 through 1998, and the 
related unaudited statement of revenues and expenses, and cash flow, for each 
of the fiscal years then ended, (b) an unaudited balance sheet of DigiCourse 
as of June 30, 1998 (the "Balance Sheet"), and the related unaudited 
statement of income for the three months then ended, (c) an unaudited balance 
sheet of DigiCourse as of August 31, 1998 and an unaudited balance sheet of 
Limited as of August 31, 1998 (together, the "Interim Balance Sheets") and 
the related unaudited statements of income for the five months then ended for 
DigiCourse and Limited and (d) audited financial statements for the three 
past fiscal years of Limited.  Such financial statements substantially and 
fairly present the financial condition and the results of operations of 
DigiCourse and Limited as at the respective dates of and for the periods 
referred to in such financial statements, reflecting the consistent 
application of accounting principles, in accordance with GAAP, except, in the 
case of unaudited financial statements, for the absence of footnote 
disclosures throughout the periods involved, and subject to audit adjustments 
that either would not have been material in amount or would involve 
intercompany accounts and charges.  The Interim Balance Sheets reflect 
appropriate reserves to satisfy the warranty obligations of DigiCourse and 
Limited in accordance with GAAP.


                                      15
<PAGE>

     3.5  BOOKS AND RECORDS.  The books of account, minute books, stock 
record books, and other records of DigiCourse and Limited, all of which have 
been made available to I/O, to DigiCourse's Knowledge are complete and 
correct and have been maintained in accordance with sound business practices, 
including the maintenance of an adequate system of internal controls. The 
minute books of DigiCourse and Limited contain accurate and complete records 
of all meetings held of, and corporate actions taken by, the Stockholder in 
its capacity as a shareholder, the Boards of Directors of DigiCourse and 
Limited, and committees of the Boards of Directors of DigiCourse and Limited, 
respectively.  At the Closing, all books and records of DigiCourse and 
Limited since January 1, 1992, and all minute books and stock records, will 
be in the possession of DigiCourse. Stockholder will promptly deliver to the 
Surviving Corporation those DigiCourse or Limited records that Stockholder 
subsequently discovers in archive. Stockholder shall have the right to retain 
a copy of these books and records.
     
     3.6  TITLE TO PROPERTIES; ENCUMBRANCES.
     
      (a) Part 3.6 of the Disclosure Letter contains a complete and accurate 
list of all real property leaseholds of DigiCourse or Limited.  DigiCourse 
and Limited own all the properties and assets (whether real, personal, or 
mixed and whether tangible or intangible) reflected in the Interim Balance 
Sheets (except for assets held under capitalized leases disclosed, or not 
required to be disclosed, in Part 3.6 of the Disclosure Letter and personal 
property sold since the date of the Interim Balance Sheets, as the case may 
be, in the Ordinary Course of Business), and all of the properties and assets 
purchased or otherwise acquired by DigiCourse or Limited since the date of 
the Interim Balance Sheets (except for personal property acquired and sold 
since the date of the Interim Balance Sheets in the Ordinary Course of 
Business).
 
      (b) Except as disclosed on Part 3.6 of the Disclosure Letter, all 
material properties and assets reflected in the Interim Balance Sheets are 
free and clear of all Encumbrances and are not subject to any building use 
restrictions, exceptions, variances, reservations, or limitations of any 
nature (collectively, "Limitations") except, with respect to all such 
properties and assets, (i) security interests shown on the Interim Balance 
Sheets with respect to which no default (or event that, with notice or lapse 
of time or both, would constitute a default) exists, (ii) security interests 
incurred in connection with the purchase of property or assets after the date 
of the Interim Balance Sheets (such security interests being limited to the 
property or assets so acquired), with respect to which no default (or event 
that, with notice or lapse of time or both, would constitute a default) 
exists, (iii) liens for current Taxes not yet due, or Encumbrances that are 
not material to DigiCourse or Limited and (iv) Encumbrances and Limitations 
on real property that do not materially interfere with DigiCourse's or 
Limited's use of such real property.
 
     3.7  CONDITION AND SUFFICIENCY OF ASSETS.  The leasehold structures and 
equipment of DigiCourse and Limited are adequate for the uses to which they 
are being put.  None of such structures or equipment is in need of 
maintenance or repairs except for ordinary, routine maintenance.  The 
leasehold structures and equipment of DigiCourse and 

                                      16
<PAGE>

Limited are sufficient leasehold structures and equipment for the continued 
conduct of DigiCourse's and Limited's business immediately after the Economic 
Closing Date in substantially the same manner as conducted immediately prior 
to the Economic Closing Date.
 
     3.8  ACCOUNTS RECEIVABLE.  All accounts receivable of DigiCourse and 
Limited that are reflected on the Interim Balance Sheets or on the accounting 
records of DigiCourse or Limited as of the Economic Closing Date 
(collectively, the "Accounts Receivable") represent or will represent valid 
obligations arising from sales actually made or services actually performed 
in the Ordinary Course of Business.  To DigiCourse's Knowledge, unless paid 
prior to the Economic Closing Date, the Accounts Receivable are or will be as 
of the Economic Closing Date current and collectible net of the respective 
reserves shown on the Interim Balance Sheets or on the accounting records of 
DigiCourse and Limited as of the Economic Closing Date (which reserves are 
adequate and calculated consistent with past practice).  There is no contest, 
claim, or right of set-off, other than returns in the Ordinary Course of 
Business, under any Contract with any obligor of an Accounts Receivable 
relating to the amount or validity of such Accounts Receivable. Part 3.8 of 
the Disclosure Letter contains a complete and accurate aged list of all 
Accounts Receivable as of the date of the Interim Balance Sheets, which list 
sets forth the aging of such Accounts Receivable.
 
     3.9  INVENTORY.  All inventory of DigiCourse and Limited reflected in 
the Interim Balance Sheets consists, and reflected on the accounting records 
at the Economic Closing Date will consist of, a quality and quantity usable 
and salable in the Ordinary Course of Business, except for obsolete items and 
items of below-standard quality, all of which have been written off or 
written down to net realizable value in the Interim Balance Sheets.  To 
DigiCourse's Knowledge, the quantities of inventory are reasonable in the 
present circumstances of DigiCourse and Limited. 
 
     3.10 NO UNDISCLOSED LIABILITIES. DigiCourse and Limited have no material 
liabilities or obligations of any nature (whether known or unknown and 
whether absolute, accrued, contingent, or otherwise) except for liabilities 
or obligations reflected or reserved against in the Interim Balance Sheets, 
liabilities incurred in the Ordinary Course of Business since the date of the 
Interim Balance Sheets and liabilities not required to be reflected or 
reserved against under GAAP.
 
     3.11 TAXES.  DigiCourse and Limited have each filed or caused to be 
filed all Tax Returns that are or were required to be filed by or with 
respect to them pursuant to applicable Legal Requirements.  DigiCourse and 
Limited have paid, or made provision for the payment of, all Taxes that have 
or may have become due pursuant to those Tax Returns.  The charges, accruals, 
and reserves with respect to Taxes on the books of DigiCourse are adequate 
under applicable Legal Requirements of taxing authorities and are at least 
equal to the liability for Taxes as determined under such Legal Requirements. 
All Taxes that each of DigiCourse and Limited is or was required by Legal 
Requirements to withhold or collect have been duly withheld or collected and, 
to the extent required, have been paid to the proper Governmental Body or 
other Person. All Tax Returns filed on a consolidated basis on behalf of 
DigiCourse are true, correct, and complete in all material respects.  There 
is no Tax 

                                      17
<PAGE>

sharing agreement that will require any payment by DigiCourse or Limited 
after the date of this Agreement.
 
     3.12 NO MATERIAL ADVERSE CHANGE.  Since the date of the Interim Balance 
Sheets, there has not been any material adverse change in the business, 
operations, properties, assets, or financial condition of DigiCourse or 
Limited through the date of this Agreement, and no event has occurred or 
circumstance exists through the date of this Agreement that may result in 
such a material adverse change other than those generally affecting 
DigiCourse's industry.
 
     3.13 EMPLOYEE PLANS AND AGREEMENTS.  Part 3.13 of the Disclosure Letter 
lists all of the profit sharing plans and all of the retirement, stock 
option, stock purchase, bonus, life, medical, vision, health, disability or 
accident plans, deferred compensation plans, severance agreements, and other 
employee compensation or benefit plans, agreements and arrangements, 
including, without limitation, all "plans" as defined in Section 3(3) of 
ERISA, relating to officers or employees (including former officers or 
employees) of DigiCourse or Limited pursuant to which DigiCourse or Limited 
has any liability (contingent or otherwise) (collectively, the "Plans" and 
individually, a "Plan"). DigiCourse and Limited have complied with all Legal 
Requirements governing, and terms and conditions of, the Plans.  Since April 
1, 1998, DigiCourse has maintained workers' compensation coverage as required 
by applicable state law through purchase of insurance and not by 
self-insurance, and DigiCourse has no liabilities for prior workers' 
compensation self-insurance.
 
     3.14 COMPLIANCE WITH LEGAL REQUIREMENTS; GOVERNMENTAL AUTHORIZATIONS.  
To the Knowledge of DigiCourse, DigiCourse and Limited are, and at all times 
since January 1, 1994 have been, in full compliance with each Legal 
Requirement that is or was applicable to them or to the conduct or operation 
of their business or the ownership or use of any of their assets that could 
have material Adverse Consequences to DigiCourse or Limited; and to the 
Knowledge of DigiCourse, no event has occurred or circumstance exists that 
(with or without notice or lapse of time) constitutes a material violation by 
DigiCourse or Limited of, or a material failure on the part of DigiCourse or 
Limited to comply with, any Legal Requirement.  To DigiCourse's Knowledge, 
Part 3.14 of the Disclosure Letter contains a complete and accurate list of 
each license or permit from a Governmental Body that is held by DigiCourse or 
Limited the absence of which would have a material Adverse Consequence to 
DigiCourse or Limited.

     3.15 LEGAL PROCEEDINGS; ORDERS.  Except as set forth in Part 3.15 of the 
Disclosure Letter, there is no pending Proceeding:

     (a)  that has been commenced by or against DigiCourse or Limited or that 
involves claims against or by DigiCourse or Limited; or

     (b)  that challenges, or that may have the effect of preventing, 
delaying, making illegal, or otherwise interfering with, any of the 
Contemplated Transactions.

                                      18
<PAGE>

To the Knowledge of DigiCourse, no such Proceeding has been Threatened. 

     3.16 ABSENCE OF CERTAIN CHANGES AND EVENTS.  Since the date of the 
Interim Balance Sheets, DigiCourse and Limited have each conducted its 
business only in the Ordinary Course of Business, except for this Agreement.

     3.17 CONTRACTS; NO DEFAULTS.  Part 3.17 of the Disclosure Letter 
contains an accurate list of each Applicable Contract that involves an amount 
in excess of $60,000 in any 12 month period.  Each Contract identified or 
required to be identified in Part 3.17 of the Disclosure Letter is in full 
force and effect, without breach to DigiCourse's Knowledge, and is valid and 
enforceable in accordance with its terms (subject to debtors' protection laws 
and equitable principles).

     3.18 INSURANCE.  DigiCourse has delivered to I/O true and complete 
copies of all policies of insurance to which DigiCourse or Limited is a party 
or under which DigiCourse or Limited, or any officer or director of 
DigiCourse or Limited, is or has been covered since March 31, 1996, related 
to the business of DigiCourse or Limited.  All policies to which DigiCourse 
is a party or that provide coverage to DigiCourse or Limited, or any director 
or officer of DigiCourse or Limited related to the business of DigiCourse or 
Limited are valid, outstanding, and enforceable; and do not provide for any 
retrospective premium adjustment or other experienced-based liability on the 
part of DigiCourse or Limited.  Following the Merger, the Surviving 
Corporation will no longer be covered by insurance arranged through 
Stockholder.

     3.19 ENVIRONMENTAL MATTERS.  DigiCourse and Limited are, and at all times 
have been, in full compliance with, and has not been and is not in violation 
of or liable under, any Environmental Law.  Through the Economic Closing Date 
there will be no pending or, to the Knowledge of DigiCourse, Threatened 
claims resulting from any Environmental, Health, and Safety Liabilities or 
arising under or pursuant to any Environmental Law, with respect to or 
affecting any of the Facilities or other DigiCourse or Limited operations, 
properties and assets.

     3.20 EMPLOYEES.  DigiCourse has delivered to I/O a complete and accurate
list, as of the date of this Agreement, of the following information for each
employee of DigiCourse or Limited, including each employee on leave of absence
or layoff status: name; job title; current compensation paid or payable and any
change in compensation since January 1, 1996; vacation accrued; and service
credited for purposes of vesting and eligibility to participate under
DigiCourse's or Limited's Plans.  To DigiCourse's Knowledge, no employee of
DigiCourse or Limited is a party to, or is otherwise bound by, any agreement or
arrangement, including any confidentiality, noncompetition, or proprietary
rights agreement, between such employee and any other Person ("Proprietary
Rights Agreement") that in any way adversely affects or will affect the
performance of his duties as an employee of DigiCourse or Limited.  To
DigiCourse's Knowledge, on the date of this Agreement and on the Economic
Closing Date, no officer, or employee directly reporting to an officer, or other
employee with an annual base compensation of $50,000 per year, of DigiCourse or
Limited intends to terminate his 

                                      19
<PAGE>

employment with DigiCourse or Limited.

     3.21 INTELLECTUAL PROPERTY.   

     (a)  INTELLECTUAL PROPERTY ASSETS.  The term "Intellectual Property 
Assets" includes DigiCourse's and Limited's:

         (i)   name, and any fictional business names, trading names, registered
    and unregistered trademarks, service marks, and trademarks or service mark
    applications listed in Part 3.21(a)(i) of the Disclosure Letter
    (collectively, "Marks");

         (ii)  those patents, patent applications, and inventions and
    discoveries that may be patentable listed in Part 3.21(a)(i) of the
    Disclosure Letter (collectively, "Patents");

         (iii) all copyrights in both material published works and material
    unpublished works (collectively, "Copyrights");

         (iv)  all know-how, trade secrets, confidential information, customer
    lists, technical information, data, process technology, plans, drawings,
    and blue prints that have been protected (collectively, "Trade Secrets") or
    are owned or licensed by DigiCourse or Limited as licensee or licensor; and

         (v)   all material Software and Rights owned or licensed by DigiCourse
    or Limited as licensee or licensor.

    (b)  AGREEMENTS.  Part 3.21(b) of the Disclosure Letter contains a complete
and accurate list of all Contracts relating to the Intellectual Property Assets
to which DigiCourse or Limited is a party or by which DigiCourse or Limited is
bound, except for (i) any perpetual license implied by the sale of a product and
(ii) each paid-up license for commonly available software programs with a value
of less than $50,000 under which DigiCourse is the licensee. There are no
outstanding and, to DigiCourse's Knowledge, no Threatened disputes or
disagreements with respect to any listed Contract.  DigiCourse and Stockholder
have not granted and are not obligated to grant a license, assignment or other
right in respect of any item of Intellectual Property Assets, except as
disclosed on Part 3.21(b) to the Disclosure Letter.

    (c)  KNOW-HOW NECESSARY FOR THE BUSINESS.

         (i)   The Intellectual Property Assets are all those necessary for the
     operation of DigiCourse's businesses as they are currently conducted other
     than Intellectual Property Assets that are Shared Software and Rights or
     that are used as a shared service described on Exhibit 2.7 with Stockholder
     or Stockholder Affiliates.  DigiCourse is the owner or licensee of all
     right, title, and interest in and to each of the Intellectual Property
     Assets, free and clear of all liens, security interests, charges,

                                      20
<PAGE>

     encumbrances, equities, and other adverse claims, and has the right to use
     without payment to a third party all of the Intellectual Property Assets,
     unless listed in Part 3.21(c)(i) of the Disclosure Letter.

         (ii)  No past or present employee or consultant of DigiCourse has any
     ownership interest or any other rights in and to any Intellectual Property
     Asset.  No Contract exists between DigiCourse and any third party which
     would impede or prevent the continued use of such right, title and interest
     of DigiCourse in and to the Intellectual Property Assets as DigiCourse had
     prior to the Economic Closing Date and used in the conduct of its business,
     subject to the rights of licensors and licensees pursuant to existing
     Contracts listed on Part 3.21(b) to the Disclosure Letter.

     (d)  PATENTS.

          (i)   Part 3.21(a)(ii) of the Disclosure Letter contains a complete 
     and accurate list of all issued Patents.  At the time of the Economic 
     Closing Date, DigiCourse will be the owner of all right, title, and 
     interest in and to each of the issued Patents, free and clear of any 
     Encumbrances, and Stockholder will take steps in an orderly and prompt 
     fashion to transfer ownership of record to all issued foreign Patents to 
     Surviving Corporation.

          (ii)  All of the issued U.S. Patents are currently in compliance with
     formal legal requirements (including payment of filing, examination, and
     maintenance fees).

          (iii) To DigiCourse's Knowledge, no issued Patent is involved in
     any interference, reissue, reexamination, or opposition proceeding.  To
     DigiCourse's Knowledge, there is no interfering patent or patent
     application of any third party to any issued Patent.

          (iv)  To DigiCourse's Knowledge, no issued Patent has been Threatened.
     To DigiCourse's Knowledge, none of the Products infringes or is alleged to
     infringe any patent or other proprietary right of any other Person.

     (e)  MARKS.

          (i)   Part 3.21(e) of Disclosure Letter contains a complete and
     accurate list of all registered Marks.  At the time of the Economic Closing
     Date, DigiCourse will be the owner of all right, title, and interest in and
     to each of the U.S. Marks, free and clear of all Encumbrances and
     Stockholder will take steps in an orderly and timely fashion to transfer
     ownership of record to all registered foreign Marks.

          (ii)  All Marks that have been registered with the United States 
     Patent and Trademark Office are currently in compliance with all formal 
     legal requirements (including the timely post-registration filing of 
     affidavits of use and incontestability and renewal applications).

                                      21
<PAGE>

          (iii) To DigiCourse's Knowledge, no registered Mark or pending
     trademark application is now involved in any opposition, invalidation, or
     cancellation.

     (f)  COPYRIGHTS.

          (i)   Part 3.21(f) of the Disclosure Letter contains a complete and
     accurate list of all registered Copyrights.  DigiCourse is the owner of all
     right, title, and interest in and to each of the registered Copyrights,
     free and clear of all Encumbrances.

          (ii)  All registered Copyrights are currently in compliance with 
     formal legal requirements.

          (iii) To DigiCourse's Knowledge, no Copyright is infringed or
     Threatened.

     (g)  TRADE SECRETS.   To DigiCourse's Knowledge, with respect to material
Trade Secrets, the documentation relating to such Trade Secret is reasonably
current and sufficient in detail and content to identify and explain it and to
allow its full and proper use without reliance on the knowledge or memory of any
single individual.

     (h)  RIGHTS.

          (i)   Part 3.21(h) of the Disclosure Letter contains a complete and
     accurate list of all Products.  DigiCourse is the owner of all right,
     title, and interest in and to the Rights, free and clear of all
     Encumbrances and the Rights may be used by the Surviving Corporation to
     produce and market all of the Products following the Economic Closing Date
     in the same manner as such were used prior to the Economic Closing Date
     without the payment of additional fees.

          (ii)  To DigiCourse's Knowledge, the Products perform in all material
     respects in accordance with the Documentation.

          (iii) DigiCourse will have delivered to I/O in written form, and
     scheduled in the Disclosure Letter, all material Products (A) that are
     non-standard Products under development for a particular customer, (b) that
     require non-standard support, (C) that have a non-standard warranty, and
     (D) that have non-standard delivery obligations.  To DigiCourse's
     Knowledge, neither DigiCourse nor Limited has requested additional
     equipment, development tools or technical personnel indicating that they
     are needed to satisfy and discharge these obligations.

          (iv)  DigiCourse has made available to I/O and I/O Marine 
     documentation identifying, to DigiCourse's Knowledge, all bugs in 
     Products together with documentation of all fixes implemented, in 
     development or planned for those bugs.

                                      22
<PAGE>

          (v)  Except for changes to be made in the Ordinary Course of Business
     which will not have material Adverse Consequences on DigiCourse's business,
     to DigiCourse's Knowledge, no currently available or announced
     technological advance or release will result in any Product's obsolescence
     within the next twelve (12) months.

          (vi) Except as disclosed in writing to I/O, to DigiCourse's Knowledge
     performance of the Products will not be adversely affected in any material
     respect solely as a result of the date change from December 31, 1999 to
     January 1, 2000.

     3.22 DISCLOSURE.  To DigiCourse's Knowledge, no representation or warranty
of Stockholder in this Agreement and no statement in the Disclosure Letter omits
to state a material fact necessary to make the statements herein or therein, in
light of the circumstances in which they were made, not misleading.

     3.23 BROKERS OR FINDERS.  DigiCourse and Limited have incurred no
obligation or liability, contingent or otherwise, for brokerage or finders' fees
or agents' commissions or other similar payment in connection with this
Agreement.

     3.24 YEAR 2000 COMPLIANCE.  Part 3.24 of the Disclosure Letter contains
DigiCourse's and Limited's Year 2000 action plans and status reports. 
DigiCourse's and Limited's operations as currently conducted, upon execution of
these Year 2000 action plans, to DigiCourse's Knowledge, will not suffer a
material Adverse Consequence determined applying the British Standards Institute
definition of Year 2000 compliant.

4.   REPRESENTATIONS AND WARRANTIES OF I/O

     I/O and I/O Marine jointly and severally represent and warrant to
Stockholder as follows:

     4.1  ORGANIZATION AND GOOD STANDING.  I/O is a corporation duly organized,
validly existing, and in good standing under the laws of the State of Delaware
with full corporate power and authority to conduct its business as it is now
being conducted, to own and use the properties and assets that it purports to
own or use and to perform all its obligations under all Contracts to which it is
a party.  

     4.2  AUTHORITY; NO CONFLICT.

     (a)  This Agreement constitutes the legal, valid, and binding obligation of
I/O, enforceable against I/O in accordance with its terms.  I/O has the absolute
and unrestricted right, power, and authority to execute and deliver this
Agreement and to perform its obligations under this Agreement.

     (b)  Neither the execution and delivery of this Agreement by I/O nor the
consummation or performance of any of the Contemplated Transactions by I/O will,
directly 

                                      23
<PAGE>

or indirectly (with or without notice or the lapse of time), contravene, 
conflict with or result in a violation of:

          (i)   any provision of I/O's Organizational Documents;

          (ii)  any resolution adopted by the board of directors or the
     stockholders of I/O;

          (iii) any Legal Requirement or Order to which I/O or any of its
     assets may be subject; or

          (iv)  any Contract to which I/O is a party or by which I/O or any of
     its assets may be bound; or result in the imposition or creation of any
     Encumbrance upon or with respect to any of such assets.

Except for satisfaction of HSR requirements and as set forth in Schedule 4.2, 
I/O is not and will not be required to obtain any Consent from any Person in 
connection with the execution and delivery of this Agreement or the 
consummation or performance of any of the Contemplated Transactions.

     4.3  CERTAIN PROCEEDINGS.  There is no pending Proceeding that has been 
commenced against I/O and that challenges, or may have the effect of 
preventing, delaying, making illegal, or otherwise interfering with, any of 
the Contemplated Transactions or that involves material claims not disclosed 
in the I/O SEC Reports against I/O or I/O Affiliates. To I/O's Knowledge, no 
such Proceeding has been Threatened.

     4.4  BROKERS OR FINDERS.  Except for fees payable by I/O to Schnitzius & 
Vaughan, I/O and its officers and agents have incurred no obligation or 
liability, contingent or otherwise, for brokerage or finders' fees or agents' 
commissions or other similar payment in connection with this Agreement and 
will indemnify and hold Stockholder harmless from any such payment alleged to 
be due from Stockholder by or through I/O as a result of the action of I/O or 
its officers or Representatives.  This indemnity is not subject to the 
ceiling or threshold of Section 8.

     4.5  I/O CAPITALIZATION.

     (a)  The authorized capital stock of I/O consists of 100,000,000 shares 
of I/O Common Stock, of which 44,586,434 shares were outstanding as of the 
close of business on September 21, 1998, and 5,000,000 shares of preferred 
stock, par value $0.01 per share, of which no shares were outstanding as of 
September 21, 1998.  All of the outstanding shares of I/O Common Stock have 
been duly authorized and are validly issued, fully paid and nonassessable.  
I/O does not have outstanding any bonds, debentures, notes or other 
obligations the holders of which have the right to vote (or, except stock 
options, convertible into or exercisable for securities having the right to 
vote) with the stockholders of I/O on any matter.

                                      24
<PAGE>

     (b)  Prior to the Closing, I/O will have taken all necessary action to 
permit it to issue to Stockholder the number of shares of I/O Common Stock 
required to be issued pursuant to Section 2.  Such I/O Common Stock, when 
issued, will be validly issued, fully paid and nonassessable and will be 
"Restricted Stock" within the meaning of SEC Rule 144 promulgated under the 
Securities Act.

     4.6  I/O SEC REPORTS.  I/O has delivered to the Stockholder the Private 
Placement Memorandum and each registration statement, report, press releases 
or proxy statement prepared by it since May 31, 1998, and all exhibits filed 
or incorporated by reference thereto including (i) I/O's Annual Report on 
Form 10-K for the year ended May 31, 1998, (ii) I/O's  Quarterly Report on 
Form 10-Q for its fiscal quarter ended August 31, 1998 and (iii) I/O's 
definitive proxy statement prepared in connection with its annual meeting of 
stockholders to be held on September 28, 1998, all in the form (including any 
amendments thereto) as filed with the SEC and all reports and proxy materials 
filed by I/O with the SEC at any time after May 31, 1998 (collectively, the 
"I/O SEC Reports").  As of their respective dates, the I/O SEC Reports did 
not, and any I/O SEC Reports filed with the SEC subsequent to the date 
hereof, and prior to the Effective Time will not, and the Private Placement 
Memorandum does not, contain any untrue statement of a material fact or omit 
to state a material fact required to be stated therein or necessary to make 
the statements made therein, in light of the circumstances in which they were 
made, not misleading; to I/O's Knowledge, all such I/O SEC Reports complied 
as to form, in all material respects, with all applicable Legal Requirements. 
Since the filing of I/O's latest current report on Form 10-Q, there has been 
no material adverse change in the business or financial prospects of I/O that 
has not been disclosed through press releases issued by I/O.  Each of the 
consolidated balance sheets included in or incorporated by reference into the 
I/O SEC Reports (including the related notes and schedules) fairly presents 
the consolidated financial position of I/O and its subsidiaries as of its 
date and each of the consolidated statements of income and of cash flow 
included in or incorporated by reference into the I/O SEC Reports (including 
any related notes and schedules) fairly presents the results of operations, 
retained earnings and changes in cash flow, as the case may be, of I/O and 
its subsidiaries for the periods set forth therein (subject, in the case of 
unaudited statements, to notes and normal year end audit adjustments that 
will not be material in amount or effect), in each case in accordance with 
GAAP consistently applied during the periods involved, except as may be noted 
therein.
     
     4.7  INVESTMENT REPRESENTATIONS.

     (a)  I/O is an "accredited investor" within the meaning of Regulation D 
under the Securities Act.  I/O will acquire the shares of DigiCourse pursuant 
to the Merger solely for the purpose of investment, for its own account, and 
not with a view to any distribution thereof within the meaning of Section 
2(11) of the Securities Act.   
     
     (b)  I/O understands that the shares of DigiCourse will not have been 
registered under the Securities Act, that there is no established market for 
the shares of DigiCourse, and that the shares of DigiCourse must be held 
indefinitely and cannot be transferred unless an exemption from such 
registration is available with respect to such transfer. 

                                      25

<PAGE>

     (c)  I/O, alone or in conjunction with its advisors, has such knowledge 
and experience in financial and business matters that it is capable of 
evaluating the merits and risks of an investment in the shares of DigiCourse 
and of making an informed investment decision with respect thereto.
     
     (d)  I/O is able to bear the economic risk of an investment in the 
shares of DigiCourse.
     
     (e)  I/O and its advisors have been given access to all documents, books 
and additional information concerning DigiCourse and Limited which they have 
requested.  I/O has been represented by legal counsel and investment bankers 
in this transaction and such advisors have been given the opportunity to ask 
questions of, and receive answers from, the officers of DigiCourse and 
Limited concerning the affairs and business and financial condition of 
DigiCourse and Limited.  I/O has conducted such investigations in making a 
decision to enter into this Agreement and the Contemplated Transactions as 
I/O and its advisors have deemed necessary and advisable.

     4.8  TAX REPRESENTATIONS.

     (a)  I/O Marine was formed solely for the purpose of merging into
DigiCourse in accordance with this Agreement.
     
     (b)  Except for assets transferred by I/O to I/O Marine pursuant to this
Agreement, prior to the Effective Time, I/O Marine will have no historical
assets or liabilities, and except for this Agreement, and no Contracts. 
Accordingly, DigiCourse will assume no liabilities of I/O Marine and I/O Marine
will not transfer to DigiCourse any assets subject to liabilities.

     (c)  Assets transferred for purposes of this Agreement by I/O to I/O
Marine, or by I/O to the Surviving Corporation, were transferred pursuant to
this Agreement and Plan of Merger for the purpose set forth in Treasury
Regulations Section 1.368-2 (j) (3).

     (d)  All of the issued and outstanding shares of stock of I/O Marine are
owned by I/O such that I/O Marine is a 100% owned subsidiary of I/O; I/O has
been and immediately prior to the Merger will be in control of I/O Marine within
the meaning of Section 368 of the  Code.

     (e)  Following the Merger of I/O Marine into DigiCourse pursuant to the
terms of this Agreement and Merger, DigiCourse will hold substantially all of
the properties of I/O Marine and DigiCourse, other than the Merger
Consideration, all within the meaning of Code Section 368 (a) (2) (E).

     (f)  Merger Consideration transferred to the Stockholder in exchange for
the Shares will be voting common stock of I/O within the meaning of Code Section
368 (a)(2)(E) (aside from any Net Working Capital adjustment payments under
Section 2.5(a)(ii))

                                      26
<PAGE>

     (g)  After the completion of the Agreement, I/O will control DigiCourse
within the meaning of Code Section 368 (c).

     (h)  I/O has no present plan or intention to liquidate DigiCourse; to 
merge DigiCourse with or into another corporation; to sell or otherwise 
dispose of the stock of DigiCourse except for transfers of stock to 
corporations controlled by I/O; or to cause DigiCourse to sell or otherwise 
dispose of any of its assets or any of the assets acquired from I/O Marine, 
except for dispositions made in the Ordinary Course of Business or transfers 
of assets to  a corporation controlled by DigiCourse.

     (i)  Following the Merger, DigiCourse will continue its historic 
business.

     4.9  RELIANCE.  I/O and I/O Marine acknowledge, warrant, represent, and 
agree that neither of them has relied or will rely, in connection with the 
transactions contemplated by this Agreement, upon any representation, 
warranty, fact or statement (or failure to make any statement) of or by the 
Stockholder except the Stockholder's representations and warranties expressly 
set forth in this Agreement.  Nothing contained in this Agreement constitutes 
an acknowledgment by Stockholder that it has offered or sold to I/O any 
"securities," as such term is defined in the Securities Act and applicable 
state securities laws. 

5.   REPRESENTATIONS AND WARRANTIES OF I/O MARINE

     I/O and I/O Marine, jointly and severally, represent and warrant to
Stockholder as follows:

     5.1  ORGANIZATION AND GOOD STANDING.  I/O Marine is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Louisiana with full corporate power and authority to conduct its business as it
is now conducted, to own and use the properties and assets that it purports to
own or use and to perform all its obligations under all Contracts to which it is
a party.

     5.2  AUTHORITY; NO CONFLICT.

     (a)  This Agreement constitutes the legal, valid, and binding obligation of
I/O Marine, enforceable against I/O Marine in accordance with its terms.  I/O
Marine has the absolute and unrestricted right, power, and authority to execute
and deliver this Agreement and to perform its obligations under this Agreement.

     (b)  Neither the execution and delivery of this Agreement by I/O Marine nor
the consummation or performance of any of the Contemplated Transactions by I/O
Marine will, directly or indirectly (with or without notice or the lapse of
time), contravene, conflict with or result in a violation of:

          (i)   any provision of I/O Marine's Organizational Documents;

                                      27
<PAGE>

          (ii)  any resolution adopted by the board of directors or the
     shareholders of I/O Marine;

          (iii) any Legal Requirement or Order to which I/O Marine or any of
     its assets may be subject; or

          (iv)  any Contract to which I/O Marine is a party or by which I/O
     Marine or any of its assets may be bound.

Except for satisfaction of the HSR requirements, I/O Marine is not and will 
not be required to obtain any Consent from any Person in connection with the 
execution and delivery of this Agreement or the consummation or performance 
of any of the Contemplated Transactions.

     5.3  CERTAIN PROCEEDINGS.  There is no pending Proceeding that has been 
commenced against I/O Marine and that challenges, or may have the effect of 
preventing, delaying, making illegal, or otherwise interfering with, any of 
the Contemplated Transactions or that involves material claims not disclosed 
in the I/O SEC Reports against I/O or I/O Affiliates. To I/O Marine's 
Knowledge, no such Proceeding has been Threatened.

     5.4  BROKERS OR FINDERS.  I/O Marine and its officers and agents have 
incurred no obligation or liability, contingent or otherwise, for brokerage 
or finders' fees or agents' commissions or other similar payment in 
connection with this Agreement and will indemnify and hold Stockholder 
harmless from any such payment alleged to be due from Stockholder by or 
through I/O Marine as a result of the action of I/O Marine or its officers or 
Representatives.

     5.5  I/O MARINE CAPITALIZATION.  The authorized capital stock of I/O 
Marine consists of 1,000 shares of common stock ("I/O Marine Common Stock"), 
all of which is issued to and owned by I/O, free of any Encumbrances.  All of 
the outstanding shares of I/O Marine Common Stock have been duly authorized 
and are validly issued, fully paid and nonassessable.  Except as stated 
above, there are no preemptive or other outstanding rights, options, 
warrants, conversion rights, stock appreciation rights, redemption rights, 
repurchase rights, agreements, arrangements or commitments to issue or to 
sell any shares of capital stock or other securities of I/O Marine or any 
securities or obligations convertible or exchangeable into or exercisable 
for, or giving any Person a right to subscribe for or acquire, any securities 
of I/O Marine and no securities or obligation evidencing such rights are 
authorized, issued or outstanding.  I/O Marine does not have outstanding any 
bonds, debentures, notes or other obligations the holders of which have the 
right to vote (or convertible into or exercisable for securities having the 
right to vote) with the stockholder of I/O Marine on any matter.
     
     5.6  ASSETS AND LIABILITIES.  Prior to and at the Closing, I/O Marine 
will have no material assets or liabilities, no Affiliates that are 
subsidiaries and, except for this Agreement, no Contracts.

                                      28
<PAGE>

6.   CONDITIONS PRECEDENT TO I/O'S AND I/O MARINE'S OBLIGATION TO CLOSE

     The obligation of each of I/O and I/O Marine to consummate the Contemplated
Transactions, and to take the other actions required to be taken by I/O and I/O
Marine at the Closing is subject to the satisfaction, at or prior to the
Closing, of each of the following conditions (any of which may be waived, if
permitted by law, by I/O and I/O Marine, in whole or in part):

     6.1  ACCURACY OF REPRESENTATIONS.  All of Stockholder's and DigiCourse's 
representations and warranties in this Agreement (considered collectively), 
and each of these representations and warranties (considered individually), 
must be accurate in all material respects as of the date of this Agreement 
and as of the Economic Closing Date.

     6.2  STOCKHOLDER'S PERFORMANCE.  All of the covenants and obligations 
that Stockholder is required to perform or to comply with pursuant to this 
Agreement at or prior to the Closing (considered collectively), and each of 
these covenants and obligations (considered individually), must have been 
duly performed and complied with in all material respects.

     6.3  ADDITIONAL DOCUMENTS.  Each of the following documents must have 
been delivered to I/O and I/O Marine:

     (a)  the Certificate of Merger, duly executed and acknowledged by 
Stockholder and DigiCourse to the extent required by the LBCL;

     (b)  certificates of the Secretary of State and the taxing authorities 
of Louisiana dated not more than ten days prior to the Closing Date, 
attesting to the organization and good standing of DigiCourse, and to the 
payment of all state taxes due and owing thereby, if Louisiana issues such a 
certificate;

     (c)  copies, certified by the Secretary of State of Louisiana as of a 
date not more than five days prior to the Closing Date, of the articles of 
incorporation of DigiCourse, and all amendments thereto;

     (d)  copies, certified by the Secretary of DigiCourse as of the Closing 
Date, of the bylaws of DigiCourse, and all amendments thereto; and

     (e)  copies, certified by the Secretary of DigiCourse as of the Closing 
Date, of resolutions duly adopted by the Stockholder and Board of Directors 
of DigiCourse, authorizing the execution and delivery by DigiCourse of this 
Agreement and all other agreements attached hereto as exhibits or 
contemplated herein, the consummation of the Merger, and the taking of all 
such other corporate action as shall have been required as a condition to or 
in connection with the consummation of the Contemplated Transactions.

                                      29
<PAGE>

     6.4  NO CLAIM REGARDING STOCK OWNERSHIP OR SALE PROCEEDS.  There must not
have been made or Threatened by any Person any claim asserting that such Person
(a) is the holder or the beneficial owner of, or has the right to acquire or to
obtain beneficial ownership of, any stock of, or any other voting, equity, or
ownership interest in DigiCourse, or (b) is entitled to all or any portion of
the Merger Consideration.

     6.5  NO PROHIBITION.  Neither the consummation nor the performance of 
any of the Contemplated Transactions will, directly or indirectly (with or 
without notice or lapse of time), materially contravene, or conflict with, or 
result in a material violation of, or cause I/O or any Person affiliated with 
I/O to suffer any material Adverse Consequences under, (a) any applicable 
Legal Requirement or Order, or (b) any Legal Requirement or Order that has 
been published, introduced, or otherwise proposed by or before any 
Governmental Body.

     6.6  NO MATERIAL ADVERSE CHANGE.  There shall not have been, since the 
date of the Interim Balance Sheets through the Economic Closing Date, any 
material adverse change in the business, operations, properties, assets, or 
financial condition of DigiCourse or Limited.

     6.7  OPINIONS OF COUNSEL.  I/O shall have received, in a form 
satisfactory to it in its reasonable commercial discretion, opinions, 
addressed to it, of (i) its counsel to the effect that this Agreement, and 
the Registration Rights Agreement are enforceable against Stockholder in 
accordance with their respective terms; and (ii) Correro Fishman Haygood 
Phelps Walmsley & Casteix, L.L.P., to the effect that the shares of 
DigiCourse and Limited (relying upon British counsel's opinion as necessary 
regarding Limited) to be delivered to I/O under this Agreement are, at the 
Closing, duly and validly authorized and issued and fully paid and 
nonassessable.

     6.8  HSR CLEARANCE. Closing shall not occur until the receipt of any 
required Government Authorization, including Government Authorization 
(whether by lapse of requisite waiting period or otherwise) following filings 
under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (as amended) 
("HSR").  I/O agrees to pay the entire HSR filing fee.

     6.9  EMPLOYMENT ARRANGEMENT.  I/O and Roy Kelm shall have agreed upon 
post-Closing employment terms and conditions acceptable to I/O.

     6.10 RELEASE OF GUARANTY.  DigiCourse shall have been released as a 
guarantor (and from any similar obligation) with respect to any indebtedness 
of Stockholder or any Stockholder Affiliates.

     6.11 DUE DILIGENCE.  I/O shall have completed its due diligence 
investigation of DigiCourse, Limited and the Contemplated Transactions, with 
results satisfactory to I/O, and shall have received and timely reviewed 
(five days after receipt) the Disclosure Letter.  

                                      30
<PAGE>

7.   CONDITIONS PRECEDENT TO STOCKHOLDER'S AND DIGICOURSE'S OBLIGATION TO CLOSE

     The obligation of DigiCourse and the Stockholder to consummate the
Contemplated Transactions and to take the other actions required to be taken by
Stockholder and DigiCourse at the Closing is subject to the satisfaction, at or
prior to the Closing, of each of the following conditions (any of which may be
waived by Stockholder and DigiCourse, in whole or in part):

     7.1  ACCURACY OF REPRESENTATIONS.  All of I/O's and I/O Marine's 
representations and warranties in this Agreement (considered collectively), 
and each of these representations and warranties (considered individually), 
must be accurate in all material respects as of the date of this Agreement 
and as of the Closing Date.

     7.2  I/O'S PERFORMANCE.

     (a)  All of the covenants and obligations that I/O and I/O Marine are 
required to perform or to comply with pursuant to this Agreement at or prior 
to the Closing (considered collectively), and each of these covenants and 
obligations (considered individually), must have been performed and complied 
with in all material respects.

     (b)  I/O must have delivered each of the documents required to be 
delivered by I/O pursuant to Section 2.4 and must have delivered the Merger 
Consideration.

     7.3  ADDITIONAL DOCUMENTS.  I/O must have caused the following documents 
to be delivered to Stockholder:

     (a)  the Certificate of Merger, duly executed by each of I/O and I/O 
Marine, to the extent required by the LBCL;  

     (b)  certificates of the Secretary of State and the taxing authorities 
of Delaware or Louisiana, as applicable, dated not more than ten days prior 
to the Closing Date, attesting to the organization and good standing of each 
of I/O and I/O Marine as a corporation in its jurisdiction of incorporation, 
and to the payment of all state taxes due and owing thereby (if available in 
Louisiana);

     (c)  copies, certified by the Secretary of State of Delaware or 
Louisiana, as applicable, as of a date not more than ten days prior to the 
Closing Date of the articles or certificate of incorporation of each of I/O 
and I/O Marine, and all amendments thereto;

     (d)  copies, certified by the Secretary of I/O as of the Closing Date, 
of the bylaws of each of I/O and I/O Marine, and all amendments thereto;

     (e)  copies, certified by a certificate of the Secretary of I/O and I/O 
Marine as of the Closing Date, of resolutions duly adopted by the boards of 
directors of each of I/O and I/O 

                                      31
<PAGE>

Marine, and by I/O as sole stockholder of I/O Marine, authorizing the 
execution and delivery by I/O and I/O Marine of this Agreement and all other 
agreements attached hereto as Exhibits or contemplated herein, the 
consummation of the Merger, and the taking of all such other corporate action 
as shall have been required as a condition to, or in connection with the 
consummation of the Contemplated Transactions. 

     7.4  NO PROHIBITION.  Neither the consummation nor the performance of 
any of the Contemplated Transactions will, directly or indirectly (with or 
without notice or lapse of time), materially contravene, or conflict with, or 
result in a material violation of, or cause Stockholder or any Person 
affiliated with Stockholder to suffer any material Adverse Consequences 
under, (a) any applicable Legal Requirement or Order, or (b) any Legal 
Requirement or Order that has been published, introduced, or otherwise 
proposed by or before any Governmental Body.

     7.5  NYSE LISTING.  The shares of I/O Common Stock issuable to the 
Stockholder pursuant to this Agreement shall have been approved for listing 
on the NYSE upon and subject to official notice of issuance.

     7.6  OPINIONS OF COUNSEL.  Stockholder shall have received, in a form 
satisfactory to it in its reasonable commercial discretion, opinions, 
addressed to the Stockholder, of (i) its special Delaware counsel to the 
effect that this Agreement and the Registration Rights Agreement are 
enforceable against I/O in accordance with their respective terms; (ii) its 
tax counsel, to the effect that the Merger will for tax purposes constitute a 
reorganization under Section 368(a)(2)(E) of the Code and that, accordingly, 
the Stockholder will not incur any recognized gain or loss by reason of its 
receipt of shares of I/O capital stock pursuant to the Merger; and (iii) 
Haynes and Boone, L.L.P. to the effect that the shares of I/O Common Stock to 
be delivered to the Stockholder under this Agreement are, at the Closing, 
duly and validly authorized and issued and fully paid and nonassessable.
     
     7.7  SECTION 2.5 PAYMENT.  Stockholder shall have no reasonable 
expectation that any payment that may become due to it pursuant to Section 
2.5 of this Agreement might exceed in amount 19% of the aggregate value of 
the Merger Consideration.

     7.8  FAIRNESS OPINION.  DigiCourse and the Stockholder shall have 
received the opinion of NationsBanc Montgomery Securities, LLP, addressed to 
DigiCourse and the Stockholder, in form satisfactory to each of them in its 
reasonable commercial discretion, to the effect that the Merger Consideration 
is fair to the Stockholder from a financial point of view.

     7.9  NO MATERIAL ADVERSE CHANGE.  There shall not have been, since 
September 1, 1998, any material adverse change in the business, operation, 
properties, assets, or financial condition of I/O, other than those factors 
generally affecting I/O's industry. 
     
     7.10 HSR CLEARANCE. Closing shall not occur until the receipt of any 
required Government Authorization, including Government Authorization 
(whether by lapse of 

                                      32
<PAGE>

requisite waiting period or otherwise) following filings under the HSR.  I/O 
agrees to pay the entire HSR filing fee.
 
8.   INDEMNIFICATION; REMEDIES

     8.1  SURVIVAL.  All representations, warranties, covenants, and obligations
contained in this Agreement, the Disclosure Letter, and any other certificate or
document delivered pursuant to this Agreement will survive the Closing Date, but
solely to support a timely claim for indemnification pursuant to Section 8
thereto; PROVIDED, HOWEVER, that claims for indemnification in respect of
Breaches relating to the Environment, ERISA and Taxes representations and
warranties may be made until six (6) years after the Economic Closing Date and
indemnification for claims against title to the Shares or the Merger
Consideration shall survive without expiration, but all other claims for
indemnification for Breaches of this Agreement must be made within eighteen (18)
months after the Economic Closing Date.  Stockholder has the option of
performing, at its expense, in a safe manner not disrupting Surviving
Corporation's operations, Environment remediation for any indemnified claim that
is related to the Environment.

     8.2  INDEMNIFICATION AND PAYMENT OF DAMAGES BY STOCKHOLDER.  

     (a)  Stockholder will indemnify and hold harmless I/O, I/O Marine, and 
their respective Representatives, stockholders, controlling persons, and 
affiliates (collectively, the "I/O Indemnified Persons") for, and will pay to 
the I/O Indemnified Persons the amount of Adverse Consequences, arising, 
directly or indirectly, from or in connection with (i) any Breach of any 
representation, warranty or covenant made by DigiCourse or Stockholder in 
this Agreement other than the performance of DigiCourse with respect to 
post-Closing covenants, the Disclosure Letter, or any other certificate or 
document delivered by Stockholder at the Closing pursuant to this Agreement 
and (ii) the Yardney lithium batteries that were incorporated into DigiCourse 
products and any litigation of claims in connection therewith (the "Yardney 
Litigation").  
          
     (b)  The amount of Adverse Consequences payable by the Stockholder 
pursuant to this Section 8.2 will not exceed $30,000,000 in the aggregate, 
except for claims to rights in the Shares which shall not be subject to any 
ceiling amount. 

     (c)  I/O Indemnified Persons shall not be entitled to assert any claim 
for indemnification under this Section 8.2 unless and until such time as all 
claims of I/O Indemnified Persons for indemnification exceed $1,000,000 in 
the aggregate, at which time any and all claims of I/O for indemnification 
may be asserted. 
     
     8.3  INDEMNIFICATION AND PAYMENT OF DAMAGES BY I/O.  
     
     (a)  I/O and I/O Marine will, jointly and severally, indemnify and hold 
harmless Stockholder and Stockholder's Representatives ("Stockholder 
Indemnified Persons"), and will pay to Stockholder Indemnified Persons, the 
amount of any Adverse Consequences arising, 

                                      33
<PAGE>

directly or indirectly, from or in connection with (i) any Breach of any 
representation or warranty made by I/O or I/O Marine in this Agreement or in 
any certificate delivered by I/O or I/O Marine pursuant to this Agreement, 
(ii) any Breach by I/O or I/O Marine of any covenant or obligation of I/O or 
I/O Marine in this Agreement, (iii) any post-Closing performance obligations 
of the Surviving Corporation required by this Agreement, or (iv) any claim by 
any Person for brokerage or finder's fees or commissions or similar payments 
based upon any agreement or understanding alleged to have been made by such 
Person with I/O (or any Person acting on its behalf) in connection with any 
of the Contemplated Transactions.

     (b)  Stockholder Indemnified Persons shall not be entitled to assert any 
claim for indemnification under this Section 8.3 unless and until such time 
as all claims of Stockholder Indemnified Persons for indemnification exceed 
$1,000,000 in the aggregate, at which time any and all claims of Stockholder 
Indemnified Persons for indemnification may be asserted.

     (c)  The amount of Adverse Consequences payable pursuant to this Section 
8.3 by I/O and/or I/O Marine will exceed not $30,000,000 in the aggregate, 
except for claims to rights in the I/O Common Stock delivered to Stockholder 
under this Agreement, which shall not be subject to any ceiling amount.

     8.4  PROCEDURE FOR INDEMNIFICATION -- THIRD PARTY CLAIMS.

     (a)  Promptly after receipt by a I/O Indemnified Person or Stockholder 
Indemnified Person ("Indemnified Person") under Section 8.2 or Section 8.3 of 
notice of the commencement of any Proceeding against it, such Indemnified 
Person will, if a claim is to be made against an indemnifying party under 
such Section, give notice to the indemnifying party of the commencement of 
such claim, but the failure to notify the indemnifying party will not relieve 
the indemnifying party of any liability that it may have to any Indemnified 
Person, except to the extent that the indemnifying party demonstrates that 
the defense of such action is prejudiced by the Indemnified Person's failure 
to give such notice, or the notice is outside the time limitations of Section 
8.1.

     (b)  If any Proceeding referred to in Section 8.4(a) is brought against 
an Indemnified Person and the Indemnified Person gives timely notice to the 
indemnifying party of the commencement of such Proceeding, the indemnifying 
party will be entitled to participate in such Proceeding and, to the extent 
that it wishes to assume the defense of such Proceeding with counsel 
satisfactory to the Indemnified Person and, after notice from the 
indemnifying party to the Indemnified Person of its election to assume the 
defense of such Proceeding, the indemnifying party will not, as long as it 
diligently conducts such defense, be liable to the Indemnified Person under 
this Section 8 for any fees of other counsel or any other expenses with 
respect to the defense of such Proceeding, in each case subsequently incurred 
by the Indemnified Person in connection with the defense of such Proceeding, 
other than reasonable costs of investigation. If the indemnifying party 
assumes the defense of a Proceeding, (i) no compromise or settlement of such 
claims  may be effected by the indemnifying party without the Indemnified 
Person's consent unless (A) there is no finding or admission of any violation 
of Legal Requirements or any violation of the rights of any 

                                      34
<PAGE>

Person and no effect on any other claims that may be made against the 
Indemnified Person, and (B) the sole relief provided is monetary damages that 
are paid in full by the indemnifying party; and (ii) the Indemnified Person 
will have no liability with respect to any compromise or settlement of such 
claims effected without its consent. If notice is given to an indemnifying 
party of the commencement of any Proceeding and the indemnifying party does 
not, within thirty days after the Indemnified Person's notice is given, give 
notice to the Indemnified Person of its election to assume the defense of 
such Proceeding, the indemnifying party will be bound by any determination 
made in such Proceeding or any compromise or settlement effected by the 
Indemnified Person.

     (c)  Notwithstanding the foregoing, if an Indemnified Person determines 
in good faith that there is a reasonable probability that a Proceeding may 
adversely affect it other than as a result of monetary damages for which it 
would be entitled to indemnification under this Agreement, the Indemnified 
Person may, by notice to the indemnifying party, assume the exclusive right 
to defend, compromise, or settle such Proceeding, but the indemnifying party 
will not be bound by any determination of a Proceeding so defended or any 
compromise or settlement effected without its consent (which may not be 
unreasonably withheld).

     8.5  PROCEDURE FOR INDEMNIFICATION -- OTHER CLAIMS.  A claim for 
indemnification for any matter not involving a third-party claim may be 
asserted by notice to the party from whom indemnification is sought within 
the Section 8.1 time limits.

     8.6  CALCULATION OF ADVERSE CONSEQUENCES. The parties shall make 
appropriate adjustments for tax benefits and insurance coverage and shall 
take into account the time cost of money in determining the amount of 
indemnified Adverse Consequences.  Indemnified Adverse Consequences will be 
without duplication with respect to Stockholder Indemnified Persons, on one 
hand, and I/O Indemnified Persons, on the other hand.

     8.7  KNOWLEDGE LIMITATION.  If I/O had Knowledge, prior to Closing, of 
facts that would give rise to a Breach by Stockholder, DigiCourse or Limited 
of a representation, warranty or covenant upon Closing, then Stockholder 
shall have no duty to indemnify that specific claim of Adverse Consequences, 
except to the extent that Stockholder, DigiCourse or Limited also had 
Knowledge, a duty to disclose under this Agreement and failed to disclose 
these facts.

     If Stockholder or DigiCourse had Knowledge, prior to closing, of facts 
that would give rise to a Breach by I/O or I/O Marine of a representation, 
warranty or covenant upon Closing, then I/O and I/O Marine shall have no duty 
to indemnify that specific claim of Adverse Consequences except to the extent 
that I/O also had Knowledge, a duty to disclose under this Agreement, and 
failed to disclose these facts.

     If a party has Knowledge of any Breach of another party's 
representations and warranties given in this Agreement prior to Closing, the 
party with Knowledge shall, prior to Closing, give notice to the potentially 
breaching party of those facts. 

                                      35

<PAGE>

     8.8  EXCLUSIVE REMEDY.  Following the Closing, except as specifically 
excluded from Section 8 elsewhere in this Agreement, the indemnification 
provisions in this Section 8 are the sole and exclusive remedy (except for 
any injunctive remedy that may be available) any party may have for Breach of 
representation, warranty or covenant of the Agreement or any other matters 
provided for in this Agreement.

     8.9  NO THIRD PARTY BENEFICIARIES.  The foregoing indemnification is 
given solely for the purpose of protecting the parties to this Agreement and 
the Indemnified Persons and shall not be deemed extended to, or interpreted 
in a manner to confer any benefit, right or cause of action upon, any other 
Person.

9.   GENERAL PROVISIONS

     9.1  EXPENSES. Each of Stockholder and I/O will bear its respective 
expenses incurred in connection with the preparation, execution, and 
performance of this Agreement and the Contemplated Transactions, including 
all fees and expenses of agents, representatives, counsel, and accountants.  
I/O will pay all amounts payable to Schnitzius & Vaughan in connection with 
this Agreement and the Contemplated Transactions.  Stockholder will pay all 
fees payable to NationsBanc Montgomery Securities, LLP and to counsel and 
accountants to DigiCourse and to Stockholder with respect to legal, 
financial, accounting or other professional services in connection with this 
Agreement and the Contemplated Transactions.  Stockholder will cause 
DigiCourse not to incur any out-of-pocket expenses in connection with this 
Agreement.

     9.2  PUBLIC ANNOUNCEMENTS.  Except under Legal Requirements, no 
information concerning Stockholder will be publicized by I/O without 
Stockholder's prior consent, which consent shall not be unreasonably 
withheld.  Any public announcement or similar publicity with respect to this 
Agreement or the Contemplated Transactions will be issued, if at all, at such 
time and in such manner as I/O determines with 24 hour advance written notice 
to Stockholder, giving Stockholder an opportunity to review the proposed 
release, subject to Legal Requirements deadlines. Unless consented to by I/O 
in advance or required by Legal Requirements, prior to the Closing, 
Stockholder shall use reasonable efforts, and shall cause DigiCourse to use 
reasonable efforts, to keep this Agreement strictly confidential and may not 
make any disclosure of this Agreement to any Person. Stockholder and I/O will 
consult with each other concerning the means by which DigiCourse's employees, 
customers, and suppliers and others having dealings with DigiCourse will be 
informed of the Contemplated Transactions, and I/O will have the right to be 
present for any such communication.

     9.3  CONFIDENTIALITY. Between the date of this Agreement and the Closing 
Date, the parties will maintain in confidence, and will cause their 
directors, officers, employees, agents, and advisors to maintain in 
confidence, and not use to the detriment, except as contemplated by this 
Agreement, of another party hereto any written, oral, or other information 
obtained in confidence from such other party in connection with this 
Agreement or the Contemplated Transactions, unless (a) such information is 
already known to such party (other than through delivery by the proprietor 
party in connection with the 

                                      36
<PAGE>

Contemplated Transactions) or to others not bound by a duty of 
confidentiality or such information becomes publicly available through no 
fault of such party, (b) the use of such information is necessary or required 
in making any filing or obtaining any consent or approval required for the 
consummation of the Contemplated Transactions, or (c) the furnishing or use 
of such information is required by an Order in connection with legal 
proceedings.

     If the Contemplated Transactions are not consummated, each party will 
return or destroy as much of such written information as the other party may 
request.
     
     Whether the Closing takes place, each party waives any cause of action, 
right, or claim arising out of the access of a recipient party or its 
representatives to any trade secrets or other confidential information of the 
disclosing party except for the intentional competitive misuse by the 
recipient party of such trade secrets or confidential information.

     9.4  NOTICES.  All notices, consents, waivers, and other communications 
under this Agreement must be in writing and will be deemed to have been duly 
given when (a) delivered by hand (with written confirmation of receipt), (b) 
sent by telecopier (with written confirmation of receipt), provided that a 
copy is mailed by registered mail, return receipt requested, or (c) when 
received by the addressee, if sent by a nationally recognized overnight 
delivery service (receipt requested), in each case to the appropriate 
addresses and telecopier numbers set forth below (or to such other addresses 
and telecopier numbers as a party may designate by notice to the other 
parties):

          STOCKHOLDER:

          The Laitram Corporation
          220 Laitram Lane
          Harahan, La. 70123
          Attn:  General Counsel

          Facsimile No.:  (504) 734-5233

          I/O: 

          Input/Output, Inc.
          11104  West Airport Boulevard, Suite 200
          Stafford, Texas 77477
          Attn:  General Counsel

          Facsimile No.: (281) 879-3649

     9.5  FURTHER ASSURANCES.  The parties agree (a) to furnish upon request 
to each other such further information, (b) to execute and deliver to each 
other such other documents, and (c) to do such other acts and things, all as 
another party may reasonably request for the 

                                      37
<PAGE>

purpose of carrying out the intent of this Agreement and the documents 
referred to in this Agreement.

     9.6  WAIVER.  The rights and remedies of the parties to this Agreement 
are cumulative and not alternative. Neither the failure nor any delay by any 
party in exercising any right, power, or privilege under this Agreement or 
the documents referred to in this Agreement will operate as a waiver of such 
right, power, or privilege, and no single or partial exercise of any such 
right, power, or privilege will preclude any other or further exercise of 
such right, power, or privilege or the exercise of any other right, power, or 
privilege. To the maximum extent permitted by applicable law, (a) no waiver 
that may be given by a party will be applicable except in the specific 
instance for which it is given; and (b) no notice to or demand on one party 
will be deemed to be a waiver of any obligation of such party or of the right 
of the party giving such notice or demand to take further action without 
notice or demand as provided in this Agreement or the documents referred to 
in this Agreement.

     9.7  ENTIRE AGREEMENT AND MODIFICATION.  Except for the existing 
confidentiality agreement between the parties dated June 4, 1998, this 
Agreement supersedes all prior agreements between the parties with respect to 
its subject matter and constitutes (along with the documents referred to in 
this Agreement) a complete and exclusive statement of the terms of the 
agreement between the parties with respect to its subject matter. This 
Agreement may not be amended except by a written agreement executed by the 
parties.  There are no representations or warranties of the parties given 
with respect to the Contemplated Transactions except for those expressly 
given in this Agreement, and any and all implied representations or 
warranties are expressly disclaimed.

     9.8  ASSIGNMENTS, SUCCESSORS, AND NO THIRD PARTY RIGHTS.  No  party may 
assign any of its rights under this Agreement without the prior consent of 
the other parties, which will not be unreasonably withheld.  Subject to the 
preceding sentence, this Agreement will apply to, be binding in all respects 
upon, and inure to the benefit of the successors and permitted assigns of the 
parties. Nothing expressed or referred to in this Agreement will be construed 
to give any Person other than the parties to this Agreement any legal or 
equitable right, remedy, or claim under or with respect to this Agreement or 
any provision of this Agreement. This Agreement and all of its provisions and 
conditions are for the sole and exclusive benefit of the parties to this 
Agreement and their permitted successors and assigns.

     9.9  SEVERABILITY.  If any court of competent jurisdiction holds any 
provision of this Agreement, or any agreement provided for by this Agreement, 
invalid or unenforceable, the unaffected provisions of this Agreement or that 
agreement will remain in full force and effect. Any provision of this 
Agreement held invalid or unenforceable only in part or degree will remain in 
full force and effect to the extent not held invalid or unenforceable.

     9.10 SECTION HEADINGS, CONSTRUCTION.  The headings of Sections in this 
Agreement are provided for convenience only and will not affect its 
construction or interpretation. All references to "Section" or "Sections" 
refer to the corresponding Section or Sections of this Agreement. All words 
used in this Agreement will be construed to be of such 

                                      38
<PAGE>

gender or number as the circumstances require. Unless otherwise expressly 
provided, the word "including" does not limit the preceding words or terms.

     9.11 TIME OF ESSENCE.  With regard to all dates and time periods set 
forth or referred to in this Agreement, time is of the essence.

     9.12 GOVERNING LAW.  THIS AGREEMENT WILL BE GOVERNED BY THE LAWS OF THE 
STATE OF DELAWARE WITHOUT REGARD TO CONFLICTS OF LAW PRINCIPLES.

     9.13 COUNTERPARTS.  This Agreement may be executed in one or more 
counterparts, each of which will be deemed to be an original copy of this 
Agreement and all of which, when taken together, will be deemed to constitute 
one and the same agreement.
     
     9.14 DISPUTE RESOLUTION.  If a disagreement under this Agreement arises 
between Stockholder and I/O, prior to sending a formal demand letter from 
counsel or demanding arbitration, Stockholder and I/O will seek in good faith 
to resolve the dispute.  Resolution will not be considered unachieveable 
until the matter has been turned over to an executive officer of Stockholder 
and I/O respectively, and they are unable to resolve the matter.  
Unreasonable delay on the part of an officer to attend to a dispute will 
indicate that agreement is unachieveable.  Resolution between Stockholder and 
I/O in a dispute may include disposition of the matter, agreement to submit 
the dispute to arbitration, or agreement upon another conciliatory method of 
resolution.  All parties agree to submit to mandatory and binding arbitration 
under American Arbitration Association Rules of Commercial Arbitration (i) 
any disputes not resolved in accordance with the foregoing procedure of 
Section 9.14 or (ii) if KPMG fails to determine the Economic Closing Net 
Working Capital within sixty (60) days after the Economic Closing Date.  
Arbitration under (i) will be before three arbitrators.  Arbitration under 
(ii) will be held before a single arbitrator who must be a CPA.  Arbitration 
will take place in a location or locations specified by the arbitrators.

     9.15 CONSTRUCTION.  All parties participated in drafting this Agreement. 
The rule of constructing contracts against the drafting party shall have no 
application to this Agreement.

     9.16 NO RAIDING OF EMPLOYEES.  Without prior written approval from I/O, 
Stockholder and Stockholder Affiliates will not, for a period of six months 
after Closing, employ an employee of any of I/O or the I/O Affiliates. 
Thereafter, without prior written approval from I/O, for a period of an 
additional 18 months, Stockholder and Stockholder Affiliates will not (a) 
solicit for employment an employee of I/O or I/O Affiliates (other than by 
normal and customary advertising and recruiting procedures) or (b) employ any 
of the persons listed on Exhibit 9.16A.  Without prior written approval of 
Stockholder, I/O and I/O Affiliates will not, for a period of six months 
after Closing, employ an employee of any of Stockholder or Stockholder 
Affiliates. Thereafter, without prior written approval of Stockholder, for a 
period of an additional 18 months, I/O and I/O Affiliates will not (a) 
solicit for employment an employee of Stockholder or the Stockholder 
Affiliates (other than by 

                                      39
<PAGE>

normal and customary advertising and recruitment procedures) or (b) employ 
any of the persons listed on Exhibit 9.16B.

     9.17 DISCLOSURE LETTERS. The disclosures in the Disclosure Letter, and 
those in any supplement thereto, shall expressly refer to a Section of this 
Agreement; provided, however, that disclosures in the Disclosure Letter 
expressly referring to a Section of this Agreement may incorporate by 
reference the disclosures in any other Section of the Disclosure Letter by 
express reference to that other Section or if the facts and circumstances 
clearly apply the disclosure to another Section.  Stockholder shall deliver 
to I/O a Supplement to Stockholder's Disclosure Letter promptly after 
Stockholder becomes aware of any event which changes any representation or 
warranty made by Stockholder in this Agreement or any statement made in 
Stockholder's Disclosure Letter or in any Supplement.  Closing will not occur 
until two days after delivery of a Supplement.

     9.18 SHARE ADJUSTMENTS.  The I/O shares constituting the Merger 
Consideration will be equitably adjusted for any stock dividends, splits or 
any distributions to I/O stockholders with a record date prior to the 
Effective Time.
     
     9.19 TAX PROCEDURES.  Tax Procedures are contained in the attached 
Exhibit 9.19. 

     9.20 INVESTIGATIONS. 

     (a)  Between the date of this Agreement and the Closing, (i) 
Stockholder, DigiCourse and Limited shall give to I/O and its advisors such 
access to the premises, books and records of DigiCourse and Limited and cause 
the officers, employees and accountants of DigiCourse and Limited to furnish 
such financial and operating data and other information with respect to 
DigiCourse and Limited as I/O shall from time to time reasonably request; and 
(ii) I/O shall give to Stockholder such access to the premises, books and 
records of I/O and cause the officers, employees and accountants of I/O to 
furnish such financial and operating data and other information with respect 
to I/O as Stockholder shall from time to time reasonably request. 

     (b)  In connection with the Contemplated Transactions, in addition to, 
and not by way of limitation of, any other obligations of the parties under 
or pursuant to any other agreement, whether written or oral, with Stockholder 
or any other obligations of I/O at law or in equity, all confidential 
information furnished to another party will be kept confidential by the 
recipient party's Representatives prior to the Closing Date, or in the event 
the Closing does not occur, for a period of five (5) years following 
termination of this Agreement. During such time, the recipient will hold and 
will cause its Representatives to hold in strict confidence, unless compelled 
to disclose by judicial or administrative process or, in the opinion of its 
counsel, by other requirements of law, all confidential documents and 
information in connection with the Transaction (with prior notice given to 
the parties whose information is to be disclosed). 

                                      40
<PAGE>

     9.21 TERMINATION OF THIS AGREEMENT.  The parties may terminate this
Agreement as provided below:
          
     (a)  Stockholder and I/O may terminate this Agreement by mutual written
consent at any time prior to the Closing.
          
     (b)  Stockholder may terminate this Agreement upon a material Breach of 
any representation, warranty, covenant or agreement on the part of I/O or I/O 
Marine set forth in this Agreement, or if any representation or warranty of 
I/O or I/O Marine shall have become untrue, in either case such that the 
conditions set forth in Section 7 would be incapable of being satisfied by 
November 30, 1998, unless I/O and Stockholder extend the time period by 
written mutual consent.
     
     (c)  I/O may terminate this Agreement upon a material Breach of any 
representation, warranty, covenant or agreement on the part of the 
Stockholder or DigiCourse as set forth in this Agreement, or if any 
representation or warranty of the Stockholder or DigiCourse shall have become 
untrue, in either case such that the conditions set forth in Section 6 herein 
would be incapable of being satisfied by November 30, 1998, unless I/O and 
Stockholder extend the time period by written mutual consent.
     
     (d)  I/O or Stockholder may terminate this Agreement if there shall be 
any Order preventing the consummation of the Contemplated Transactions, 
except if the party relying on such Order to terminate this Agreement has not 
complied with its obligations under this Agreement.
     
     (e)  Either I/O or Stockholder may terminate this Agreement, if the 
Exhibits to this Agreement have not been agreed upon, and attached to this 
Agreement, by the parties by October 15, 1998, or if the Closing shall not 
have been consummated before November 30, 1998.

     (f)  Stockholder may terminate this Agreement during the five (5) 
calendar days following delivery to Stockholder of the Private Placement 
Memorandum.

     (g)  I/O may terminate this Agreement during the five (5) calendar days 
following delivery of the Disclosure Letter or two (2) calendar days 
following delivery of any Supplement to the Disclosure Letter.
     
     9.22 EFFECT OF TERMINATION.  If any party terminates this Agreement 
pursuant to Section 9.21, all rights and obligations of the parties hereunder 
shall terminate without any liability, under any theory, of one party to any 
other party; and Sections 9.1, 9.3, 9.4, 9.6 through 9.16 and 9.22 shall 
survive termination of this Agreement.
     
     9.23 EFFORTS TO CONSUMMATE.  Each party shall use its Reasonable Efforts 
to cause the conditions of the obligations of the parties contained in this 
Agreement to be satisfied to 

                                      41
<PAGE>

the extent that the satisfaction of such conditions can be controlled or 
influenced by that party or its Affiliates. 

     9.24 EMPLOYEE MATTERS.  DigiCourse employees who are employed by 
DigiCourse immediately before the Effective Time will remain employees of the 
Surviving Corporation, subject to all employment policies of I/O.
          
     9.25 DIGICOURSE BENEFIT PLANS.  Provisions concerning the disposition of 
accounts in Plans in which DigiCourse employees participated prior to the 
Closing are contained in the Transfer Plan.

     9.26 RECORDS. 

     (a)  Following  Closing, Surviving Corporation shall give to Stockholder 
free and unrestricted access to (and the right to make copies at the expense 
of Stockholder) of DigiCourse pre-Closing records held by the Surviving 
Corporation, but any access pursuant to this Section 9.26 shall be conducted 
in such manner as not to interfere unreasonably with the operations of the 
Surviving Corporation.

     (b)  Following the Effective Time of Closing, Stockholder shall give to 
Surviving Corporation free and unrestricted access to (and the right to make 
copies at the expense of Surviving Corporation) DigiCourse's pre-Closing 
records held by Stockholder, but any access pursuant to this Section 9.26 
shall be conducted in such manner as not to interfere unreasonably with the 
operations of the business of Stockholder.

     (c)  Any access to Records pursuant to this Section shall be subject to 
the confidentiality obligations stated in Section 9.3.

     9.27 RECORDS RETENTION.  I/O agrees to cause the Surviving Corporation, 
for a period of eight (8) years after the Closing, to preserve, retain and 
permit access to and copying by the Stockholder, and its representatives, of 
all pre-Closing books, records, accounts, purchase orders, invoices and other 
material documents of or relating to DigiCourse together with all minute 
books, seals, share certificate, share ledgers and other corporate records 
and material of DigiCourse held by Surviving Corporation.

     9.28 CONDUCT OF BUSINESS.  Until the earlier of (i) the Effective Time 
or (ii) termination of this Agreement, each party will conduct its business 
only in the Ordinary Course of Business.

     9.29 CERTAIN ACTIONS.   Stockholder and DigiCourse shall have no 
obligation to consummate the Contemplated Transactions unless and until the 
I/O Board of Directors approves the following provision:  Prior to February 
1, 1999, I/O will not, without the written consent of Stockholder, take any 
action in furtherance of I/O being acquired by any Person (an "Acquisition") 
except an action that is required by Legal Requirements (other than under 
Contracts) of any Governmental Body.  I/O warrants and represents to 
Stockholder that I/O, 

                                      42
<PAGE>

its Board of Directors, management, or Representatives are not engaged in 
discussions with any Person concerning an Acquisition.  Since January 1, 
1998, I/O has taken no action in furtherance of an Acquisition.

     9.30 EXHIBITS.  References in this Agreement to Exhibits shall mean and
refer to those Exhibits (except those Exhibits which are attached hereto) to be
agreed upon by the parties and attached hereto and made a part hereof on or
prior to October 15, 1998.  The parties shall use Reasonable Efforts to complete
the Exhibits prior to October 15, 1998.  




                                      43
<PAGE>

      IN WITNESS WHEREOF, the parties have executed and delivered this 
Agreement as of the date first written above:

DIGICOURSE, INC.                        I/O Marine, Inc.
a Louisiana Corporation                 a Louisiana Corporation


By: /s/ ROY KELM                        By: /s/ W. J. ZERINGUE
   ----------------------------             ----------------------------
       Director                                 Director


By: /s/ BARRY LACOUR                    By: /s/ AXEL M. SIGMAR          
   ----------------------------             ----------------------------
       Director                                 Director


By: /s/ JAMES LAPEYRE             
   ----------------------------   
       Director


By: /s/ LAWRENCE P. OERTLING                          
   ----------------------------   
       Director


By: /s/ ROBBERT W. VORHOFF                          
   ----------------------------   
       Director



THE LAITRAM CORPORATION                 INPUT/OUTPUT, INC.
a Louisiana Corporation                 a Delaware Corporation



By: /s/ JAMES LAPEYRE                   By: /s/ W. J. ZERINGUE
   ----------------------------             ----------------------------
   James M. Lapeyre, Jr., Chairman          W. J. Zeringue, Chairman

 

                                      44
<PAGE>

                          CERTIFICATE OF SECRETARIES

     The undersigned Secretary of DigiCourse, Inc., a Louisiana corporation, 
and the undersigned Secretary of I/O Marine, Inc., a Louisiana corporation, 
each hereby certify with respect to the corporation of which they serve in 
such capacity that this Agreement has been approved by the sole shareholder 
of such corporation in the manner required by law.

                                       /s/ LAWRENCE P. OERTLING       
Dated: September 30, 1998            ---------------------------------
                                       Lawrence P. Oertling, Secretary
                                       DigiCourse, Inc.
                                       a Louisiana Corporation


                                       /s/ CHRIS WOLFE
Dated: September 30, 1998            ---------------------------------
                                       Chris Wolfe, Secretary
                                       I/O Marine, Inc.
                                       a Louisiana Corporation



     Pursuant to Section 112 of the Louisiana Business Corporation Law, the 
undersigned corporations have caused this Agreement and Plan of Merger to be 
executed by their respective presidents.

Dated: September 30, 1998              DIGICOURSE, INC.


                                       By:  /s/ ROY KELM
                                            --------------------------------
                                       Name:  Roy Kelm 
                                       Title: President


Dated: September 30, 1998              I/O MARINE, INC.


                                       By:  /s/ AXEL M. SIGMAR
                                            --------------------------------
                                       Name:   Axel M. Sigmar
                                            --------------------------------
                                       Title:  President


                                      45
<PAGE>

                                ACKNOWLEDGMENT

STATE OF TEXAS

COUNTY OF HARRIS

     BE IT KNOWN, that on this 1st day of October, 1998, before me, the 
undersigned Notary, duly commissioned, qualified and sworn within and for the 
State and County aforesaid, personally came and appeared Axel M. Sigmar, 
appearing herein in his capacity as the President of I/O Marine, Inc., to me 
personally known to be the identical person whose name is subscribed to the 
foregoing instrument as the said officer of the said corporation, and 
declared and acknowledged to me, Notary, in the presence of the undersigned 
competent witnesses, that he executed the same on behalf of the said 
corporation with full authority of its Board of Directors, and that the said 
instrument is the free act and deed of the said corporation and was executed 
for the uses, purposes and benefits therein expressed.

WITNESS 1:                             PRESIDENT:
/s/ CHRIS WOLFE                        /s/ AXEL M. SIGMAR
- ----------------------------           ----------------------------
                                             Axel M. Sigmar

WITNESS 2:     
/s/ TERESA M. PRUITT
- ----------------------------

/s/ MICHELLE D. LYLES
- ----------------------------
NOTARY PUBLIC



                                      46
<PAGE>

                                ACKNOWLEDGMENT


STATE OF LOUISIANA

PARISH OF JEFFERSON

     BE IT KNOWN, that on this 1st of October, 1998, before me, the 
undersigned Notary, duly commissioned, qualified and sworn within and for the 
State and Parish aforesaid, personally came and appeared Roy Kelm, appearing 
herein in his capacity as the President of DigiCourse, Inc., to me personally 
known to be the identical person whose name is subscribed to the foregoing 
instrument as the said officer of the said corporation, and declared and 
acknowledged to me, Notary, in the presence of the undersigned competent 
witnesses, that he executed the same on behalf of the said corporation with 
full authority of its Board of Directors, and that the said instrument is the 
free act and deed of the said corporation and was executed for the uses, 
purposes and benefits therein expressed.

WITNESSES:                                   PRESIDENT:

/s/ DEBORAH T. PIZZOLATO

/s/ MARJY T. BECNEL                    /s/ ROY KELM
- ----------------------------           ----------------------------
                                           Roy Kelm

/s/ FRANCK F. LABICHE, JR.
- ----------------------------
NOTARY PUBLIC



                                      47


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE COMPANY'S UNAUDITED FINANCIAL STATEMENTS FOR THE FIRST QUARTER
ENDED AUGUST 31, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAY-31-1999
<PERIOD-START>                             JUN-01-1998
<PERIOD-END>                               AUG-31-1998
<CASH>                                          59,999
<SECURITIES>                                         0
<RECEIVABLES>                                  112,589
<ALLOWANCES>                                         0
<INVENTORY>                                    125,388
<CURRENT-ASSETS>                               301,102
<PP&E>                                          71,297
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                 473,191
<CURRENT-LIABILITIES>                           44,103
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           446
<OTHER-SE>                                     417,586
<TOTAL-LIABILITY-AND-EQUITY>                   473,191
<SALES>                                         66,995
<TOTAL-REVENUES>                                66,995
<CGS>                                           45,032
<TOTAL-COSTS>                                   21,218
<OTHER-EXPENSES>                               (2,843)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 242
<INCOME-PRETAX>                                  3,346
<INCOME-TAX>                                     1,071
<INCOME-CONTINUING>                              2,275
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,275
<EPS-PRIMARY>                                     0.05
<EPS-DILUTED>                                     0.05
        

</TABLE>


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