SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-Q

(Mark One)

 X      Quarterly report pursuant to Section 13 or 15(d) of the Securities
- ---     Exchange Act of 1934

For the fiscal quarter ended:  March 31, 2002 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:      0-25426
                         ----------------

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

                Delaware                                  74-1871327
- -----------------------------------------    -----------------------------------
     (State or other jurisdiction of                   (I.R.S. Employer
      incorporation or organization)                 Identification Number)
       11500 North MoPac Expressway
              Austin, Texas                                 78759
- -----------------------------------------    -----------------------------------
 (address of principal executive offices)                 (zip code)

       Registrant's telephone number, including area code: (512) 338-9119
                           --------------------------

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

     Indicate the number of shares  outstanding of each of the issuer's  classes
of common stock, as of the latest practicable date.

                      Class                       Outstanding at May 1, 2002
         Common Stock - $0.01 par value                   51,445,290






                        NATIONAL INSTRUMENTS CORPORATION


          INDEX

          PART I.  FINANCIAL INFORMATION                                Page No.

Item 1    Financial Statements:

             Consolidated Balance Sheets
             March 31, 2002 (unaudited) and December 31, 2001.........     3

             Consolidated Statements of Income (unaudited)
             three months ended March 31, 2002 and 2001...............     4

             Consolidated Statements of Cash Flows (unaudited)
             three months ended March 31, 2002 and 2001...............     5

             Notes to Consolidated Financial Statements...............     6

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

Item 3    Quantitative and Qualitative Disclosures about Market Risk..    16


          PART II.  OTHER INFORMATION

Item 1    Legal Proceedings...........................................    17

Item 5    Other Information...........................................    17

Item 6    Exhibits and Reports on Form 8-K............................    17



                         PART I - FINANCIAL INFORMATION

ITEM 1. Financial Statements

                        NATIONAL INSTRUMENTS CORPORATION
                           CONSOLIDATED BALANCE SHEETS
                        (in thousands, except share data)


                                                        March 31,   December 31,
                                                          2002          2001
                                                      ------------  ------------
Assets                                                 (unaudited)
Current assets:
    Cash and cash equivalents.......................   $   40,500    $   49,089
    Short-term investments..........................      108,224       101,422
    Accounts receivable, net........................       60,174        53,624
    Inventories, net................................       30,807        32,607
    Prepaid expenses and other current assets.......       21,889        20,608
    Deferred income tax, net........................        7,587         6,408
                                                      ------------  ------------
      Total current assets..........................      269,181       263,758
Property and equipment, net.........................      141,042       137,360
Intangibles and other assets........................       22,895        23,501
                                                      ------------  ------------
      Total assets..................................   $  433,118    $  424,619
                                                      ============  ============
Liabilities and Stockholders' Equity
Current liabilities:
    Accounts payable................................   $   24,597    $   28,958
    Accrued compensation............................       10,089         8,944
    Accrued expenses and other liabilities..........        8,474         6,819
    Income taxes payable............................        4,285         1,298
    Other taxes payable.............................        8,330         7,903
                                                      ------------  ------------
      Total current liabilities.....................       55,775        53,922
Deferred income taxes, net..........................        4,723         4,533
                                                      ------------  ------------
      Total liabilities.............................       60,498        58,455
                                                      ------------  ------------
Commitments and contingencies.......................           --            --
Stockholders' equity:
    Common stock:  par value $.01; 180,000,000
    shares authorized; 51,321,233 and 51,162,469
    shares issued and outstanding, respectively.....          513           512
Additional paid-in capital..........................       79,503        78,261
Retained earnings...................................      297,775       290,408
Accumulated other comprehensive loss................       (5,171)       (3,017)
                                                      ------------  ------------
      Total stockholders' equity....................      372,620       366,164
                                                      ------------  ------------
      Total liabilities and stockholders' equity....   $  433,118    $  424,619
                                                      ============  ============

     The accompanying notes are an integral part of these financial statements.




                        NATIONAL INSTRUMENTS CORPORATION
                        CONSOLIDATED STATEMENTS OF INCOME
                      (in thousands, except per share data)
                                   (unaudited)


                                                           Three Months Ended
                                                                March 31,
                                                        ------------------------
                                                           2002          2001
                                                        ----------    ----------
Net sales...........................................    $  94,739     $ 108,080
Cost of sales.......................................       25,358        26,873
                                                        ----------    ----------
    Gross profit....................................       69,381        81,207
                                                        ----------    ----------
Operating expenses:
    Sales and marketing.............................       35,407        38,503
    Research and development........................       15,933        15,097
    General and administrative......................        7,786         7,717
                                                        ----------    ----------
       Total operating expenses.....................       59,126        61,317
                                                        ----------    ----------
       Operating income.............................       10,255        19,890

Other income (expense):
    Interest income, net............................          797         1,801
    Net foreign exchange loss.......................         (894)       (1,378)
    Other income....................................           74           198
                                                        ----------    ----------
Income before income taxes..........................       10,232        20,511
Provision for income taxes..........................        2,865         6,564
                                                        ----------    ----------
Net income..........................................    $   7,367     $  13,947
                                                        ==========    ==========
Basic earnings per share............................    $    0.14     $    0.28
                                                        ==========    ==========

Weighted average shares outstanding - basic.........       51,205        50,701
                                                        ==========    ==========
Diluted earnings per share .........................    $    0.14     $    0.26
                                                        ==========    ==========

Weighted average shares outstanding - diluted.......       53,953        53,873
                                                        ==========    ==========

     The accompanying notes are an integral part of these financial statements.





                        NATIONAL INSTRUMENTS CORPORATION
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)
                                   (unaudited)

                                                            Three Months Ended
                                                                 March 31,
                                                          ----------------------
                                                             2002        2001
                                                          ----------  ----------
Cash flow from operating activities:
    Net income.........................................    $  7,367    $ 13,947
    Adjustments to reconcile net income to cash
    provided by operating activities:
       Charges to income not requiring cash outlays:
          Depreciation and amortization................       4,350       4,407
          Provision for (benefit from) deferred
          income taxes.................................        (997)      2,296
       Changes in operating assets and liabilities:
          (Increase) decrease in accounts receivable...      (6,550)      8,571
          Decrease (increase) in inventory.............       1,800      (1,503)
          Increase in prepaid expenses and other
          assets.......................................      (3,376)     (7,706)
          Increase (decrease) in current liabilities...       1,853      (3,983)
                                                          ----------  ----------
       Net cash provided by operating activities.......       4,447      16,029
                                                          ----------  ----------

Cash flow from investing activities:
    Capital expenditures...............................      (6,871)    (12,307)
    Additions to intangibles ..........................        (605)     (1,163)
    Purchases of short-term investments................     (49,084)    (42,386)
    Sales of short-term investments....................      42,282      39,733
                                                          ----------  ----------
       Net cash used in investing activities...........     (14,278)    (16,123)
                                                          ----------  ----------

Cash flow from financing activities:
    Net proceeds from issuance of common stock
    under employee plans...............................       1,242       1,378
                                                          ----------  ----------
       Net cash provided by financing activities.......       1,242       1,378
                                                          ----------  ----------

Net (decrease) increase in cash and cash equivalents...      (8,589)      1,284
Cash and cash equivalents at beginning of period.......      49,089      75,277
                                                          ----------  ----------
Cash and cash equivalents at end of period.............    $ 40,500    $ 76,561
                                                          ==========  ==========

     The accompanying notes are an integral part of these financial statements.




                        NATIONAL INSTRUMENTS CORPORATION
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1 - Basis of Presentation

The accompanying  unaudited  consolidated financial statements should be read in
conjunction with the consolidated financial statements and notes thereto for the
year ended  December 31, 2001,  included in the Company's  annual report on Form
10-K,  filed with the  Securities  and  Exchange  Commission.  In the opinion of
management,  the  accompanying  consolidated  financial  statements  reflect all
adjustments  (consisting only of normal recurring items) considered necessary to
present fairly the financial  position of National  Instruments  Corporation and
its  consolidated  subsidiaries at March 31, 2002 and December 31, 2001, and the
results of operations and cash flows for the three-month periods ended March 31,
2002 and 2001. Operating results for the three-month period ended March 31, 2002
are not necessarily  indicative of the results that may be expected for the year
ending December 31, 2002.

NOTE 2 - Earnings Per Share

Basic  earnings  per share  ("EPS") is computed  by  dividing  net income by the
weighted average number of common shares outstanding during each period. Diluted
EPS is computed by dividing net income by the weighted  average number of common
shares and common  share  equivalents  outstanding  (if  dilutive)  during  each
period.  Common share  equivalents  include stock options.  The number of common
share  equivalents  outstanding  relating to stock options is computed using the
treasury stock method.

The  reconciliation  of the denominators used to calculate basic EPS and diluted
EPS for the three-month periods ended March 31, 2002 and 2001, respectively, are
as follows (in thousands):

                                                         March 31,
                                                 -----------------------
                                                        (unaudited)
                                                    2002         2001
                                                 ----------   ----------
Weighted average shares outstanding-basic.....      51,205       50,701
Plus: Common share equivalents
    Stock options.............................       2,748        3,172
                                                 ----------   ----------
Weighted average shares outstanding-diluted...      53,953       53,873
                                                 ==========   ==========

Stock options to acquire  1,356,000 and 1,191,000  shares for the quarters ended
March 31,  2002 and 2001,  respectively  were  excluded in the  computations  of
diluted  EPS  because  the  effect of  including  the  options  would  have been
anti-dilutive.

NOTE 3 - Inventories

Inventories consist of the following (in thousands):

                                          March 31,     December 31,
                                            2002            2001
                                         (unaudited)
                                         ------------   ------------
Raw materials....................         $   13,863     $   15,394
Work-in-process..................                739            824
Finished goods...................             16,205         16,389
                                         ------------   ------------
                                          $   30,807     $   32,607
                                         ============   ============

NOTE 4 - Comprehensive Income

The Company has adopted Statement of Financial Accounting Standards ("SFAS") No.
130, "Reporting Comprehensive Income" which established standards for reporting,
in addition to net income, comprehensive income and its components including, as
applicable,  foreign  currency items and unrealized  gains and losses on certain
investments in debt and equity securities.  Total  comprehensive  income for the
quarters  ended  March 31,  2002 and 2001 is $4.9  million  and  $15.8  million,
respectively,  and included other  comprehensive  losses of $2.4 million for the
quarter ended March 31, 2002 and other comprehensive  income of $1.8 million for
the quarter ended March 31, 2001



NOTE 5 - Segment Information

While the Company sells its products to many different  markets,  its management
has chosen to organize  the  Company by  geographic  areas,  and as a result has
determined  that  it  has  one  reportable  segment.  Substantially,  all of the
interest income, interest expense,  depreciation and amortization is recorded in
North America. Net sales,  operating income and identifiable assets,  classified
by the major geographic areas in which the Company operates,  are as follows (in
thousands):

                                             Three Months Ended
                                                  March 31,
                                         ---------------------------
                                                 (unaudited)
                                             2002           2001
                                         ------------   ------------
 Net sales:
 Americas:
   Unaffiliated customer sales........   $    47,648    $    56,324
   Geographic transfers...............        13,180         16,035
                                         ------------   ------------
                                              60,828         72,359
                                         ------------   ------------
 Europe:
   Unaffiliated customer sales........        29,000         33,424
                                         ------------   ------------
 Asia Pacific:
   Unaffiliated customer sales........        18,091         18,332
                                         ------------   ------------
 Eliminations.........................       (13,180)       (16,035)
                                         ------------   ------------
                                         $    94,739    $   108,080
                                         ============   ============

                                             Three Months Ended
                                                  March 31,
                                         ---------------------------
                                                 (unaudited)
                                             2002            2001
                                         ------------   ------------
 Operating income:
 Americas.............................   $     8,856    $    14,192
 Europe...............................         7,914         11,070
 Asia Pacific.........................         9,418          9,725
 Unallocated:
 Research and development expenses....       (15,933)       (15,097)
                                         ------------   ------------
                                         $    10,255    $    19,890
                                         ============   ============

                                          March 31,     December 31,
                                            2002            2001
                                         (unaudited)
                                         ------------   ------------
Identifiable assets:
Americas..............................   $   363,462    $   349,209
Europe................................        58,516         65,201
Asia Pacific..........................        11,140         10,209
                                         ------------   ------------
                                         $   433,118    $   424,619
                                         ============   ============

Total sales outside the United States for the quarters  ended March 31, 2002 and
2001 were $51.2 million and $57.1 million, respectively.



NOTE 6 - Commitments and Contingencies

During 2001,  the Company  filed a complaint  in U.S.  District  Court,  Western
District of Texas (Midland  Division) for  declaratory  judgment  arising from a
controversy between the Company and General Patent  Corporation,  General Patent
Corporation   International,   and  Acticon  Technologies,   LLC  ("Defendants")
concerning the enforceability,  validity, and infringement of certain patents in
which  Defendants  claim  an  interest.  Defendants  claimed  that  the  Company
infringes these patents.  The Company challenged the validity and enforceability
of these  patents and  asserted  that it does not  infringe  the claims of these
patents.   The  Company   sought  a  declaratory   judgment  of  invalidity  and
non-infringement. Defendants sought damages in an unspecified amount, injunction
of the sale of certain products of the Company and attorney's fees and costs. On
April 16, 2002,  the case was  dismissed  by  stipulation  of the parties.  As a
result,  the Company reduced the  intellectual  property defense cost accrual by
approximately $500,000.



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

This Quarterly Report on Form 10-Q contains  forward-looking  statements  within
the meaning of Section 27A of the  Securities Act of 1933 and Section 21E of the
Securities  Exchange Act of 1934. Any statements  contained herein regarding the
future financial  performance or operations of the Company  (including,  without
limitation, statements to the effect that the Company "expects," "plans," "may,"
"will," "believes," "projects,"  "continues," or "estimates" or other variations
thereof or comparable  terminology or the negative thereof) should be considered
forward-looking  statements.  Actual results could differ  materially from those
projected in the forward-looking statements as a result of a number of important
factors.  For a discussion of important  factors that could affect the Company's
results, please refer to the Market Risk section, the Issues and Outlook section
and financial statement line item discussions below. Readers are also encouraged
to refer to the documents regularly filed by the Company with the Securities and
Exchange  Commission,  including  the  Company's  Annual Report on Form 10-K for
further discussion of the Company's business and the risks attendant thereto.

Results of Operations

     The following table sets forth, for the periods  indicated,  the percentage
of  net  sales   represented  by  certain  items   reflected  in  the  Company's
consolidated statements of income:

                                               Three Months Ended
                                                   March 31,
                                          ----------------------------
                                             2002              2001
                                          ----------        ----------
Net sales:
    North America                             50.3%             52.2%
    Europe                                    30.6              30.9
    Asia Pacific                              19.1              16.9
                                          ----------        ----------
    Consolidated net sales                   100.0             100.0
Cost of sales                                 26.8              24.9
                                          ----------        ----------
    Gross profit                              73.2              75.1
Operating expenses:
    Sales and marketing                       37.4              35.6
    Research and development                  16.8              14.0
    General and administrative                 8.2               7.1
                                          ----------        ----------
    Total operating expenses                  62.4              56.7
                                          ----------        ----------
       Operating income                       10.8              18.4
Other income (expense):
    Interest income, net                       0.8               1.7
    Net foreign exchange loss                 (0.9)             (1.3)
    Other income                               0.1               0.2
                                          ----------        ----------
Income before income taxes                    10.8              19.0
Provision for income taxes                     3.0               6.1
                                          ----------        ----------
    Net income                                 7.8%             12.9%
                                          ==========        ==========

     Net Sales.  Consolidated  net sales for the first quarter of 2002 decreased
by $13.3  million or 12% from the  comparable  prior year  quarter.  The Company
believes the decrease in sales is primarily  attributable to the approximate 35%
decline  in the sales of  certain  hardware  products  that are used to  control
traditional  instruments,  which  resulted from the worsening of the  industrial
economy and the severe  deterioration  of sales of  traditional  instruments  by
other vendors used in test and  measurement  applications.  In the quarter ended
March  31,  2002,  the  sales of  hardware  products  that  are used to  control
traditional  instruments  represented  19%  of  revenue  compared  to 25% in the
quarter ended March 31, 2001.  North American sales in the first quarter of 2002
decreased by 15% from the first quarter of 2001.



     Sales outside of North America,  as a percentage of consolidated  sales for
the  quarter  ended  March  31,  2002,  increased  to  49.7%  from  47.8% in the
comparable 2001 period. Compared to 2001, the Company's European sales decreased
by 13% to $29.0  million for the quarter  ended  March 31,  2002.  Sales in Asia
Pacific  decreased  by 1% to $18.1  million in the quarter  ended March 31, 2002
compared to 2001. The Company expects sales outside of North America to continue
to represent a significant portion of its revenue.

     Sales made by the Company's direct sales offices in Europe and Asia Pacific
are denominated in local currencies, and accordingly, the U.S. dollar equivalent
of these sales is affected by changes in the weighted  average value of the U.S.
dollar.  This weighted  average is calculated  as the  percentage  change in the
value of the currency relative to the U.S. dollar,  multiplied by the proportion
of international sales recorded in the particular  currency.  During the quarter
ended March 31,  2002,  the Company  recognized a pretax gain of $2.6 million on
its foreign currency cash flow hedging contracts, primarily on the Japanese yen.
As a result of these  gains,  between  the first  quarter  of 2001 and the first
quarter of 2002 the weighted average value of the U.S. dollar decreased by 4.2%,
causing an equivalent increase in the U.S. dollar value of the Company's foreign
currency sales and expenses. If the weighted average value of the U.S. dollar in
the  first  quarter  of 2002 had been the same as that in the first  quarter  of
2001,  on a pro-forma  basis the  Company's  sales for the first quarter of 2002
would have decreased by 14%.  Pro-forma  European sales for the first quarter of
2002 would have  decreased  by 12% from first  quarter of 2001 sales.  Pro-forma
Asia  Pacific  sales for the first  quarter of 2002 would have  decreased by 11%
from  first  quarter  2001  sales.  Since  most of the  Company's  international
operating expenses are also incurred in local currencies, the change in exchange
rates had the effect of  increasing  operating  expenses by $1.0 million for the
quarter ended March 31, 2002.

     Gross Profit.  As a percentage of sales,  gross profit decreased to 73% for
the first quarter of 2002 from 75% for the first quarter of 2001. The relatively
high software  content of the Company's  products is  demonstrated  in the gross
margins  achieved by the Company.  Approximately  70% of the lower margin in the
first  quarter  of 2002 is  attributable  to reduced  sales of certain  hardware
products  that  are  used to  control  traditional  instruments.  The  remaining
fraction of the lower margin is attributable to increased charges resulting from
lower sales volume. There can be no assurance that the Company will maintain its
historical margins.

     The Company  established a new  manufacturing  facility in Hungary in 2001.
The  Company  believes  its current  manufacturing  capacity is adequate to meet
current needs.

     Sales and Marketing.  Sales and marketing expenses for the first quarter of
2002  decreased  to $35.4  million,  an 8%  decrease,  as  compared to the first
quarter of 2001. As a percentage of net sales, sales and marketing expenses were
37.4%  and  35.6%  for  the  three   months  ended  March  31,  2002  and  2001,
respectively.  The decrease in these  expenses is  attributable  to decreases in
travel,   advertising  and  literature   costs,   the  variable   components  of
compensation and special event activity. The Company expects sales and marketing
expenses in future periods to increase in absolute dollars,  and to fluctuate as
a percentage of sales based on  recruiting,  initial  marketing and  advertising
campaign  costs  associated  with major new product  releases and entry into new
market areas, investment in web sales and marketing efforts,  increasing product
demonstration costs and the timing of domestic and international conferences and
trade shows.

     Research and Development.  Research and development  expenses  increased to
$15.9 million for the quarter  ended March 31, 2002, a 6% increase,  as compared
to $15.1  million for the three months ended March 31, 2001.  As a percentage of
net sales,  research and development expenses increased to 16.8% for the quarter
ended March 31,  2002,  from 14.0% for the quarter  ended  March 31,  2001.  The
increase  in  research  and  development  costs  in  absolute  amounts  and as a
percentage  of sales was due to  increases  in  personnel  costs from  hiring of
additional product development engineers. The Company plans to continue making a
significant   investment  in  research  and   development  in  order  to  remain
competitive.



     The Company capitalizes  software development costs in accordance with SFAS
No. 86,  "Accounting for the Costs of Computer  Software to be Sold,  Leased, or
Otherwise Marketed." The Company amortizes such costs over the related product's
estimated economic useful life, generally three years,  beginning when a product
becomes  available for general release.  Software  amortization  expense totaled
$865,000  and  $774,000  for  the  quarters  ended  March  31,  2002  and  2001,
respectively.  Software  development  costs  capitalized  were $400,000 and $1.1
million  for the  quarters  ended  March 31,  2002 and 2001,  respectively.  The
amounts  capitalized in the first quarter of 2002 related to the  development of
NI-488.2, NI-PAL 1.6.0 and MStudio 6.0.1.

     General and  Administrative.  General and  administrative  expenses for the
first  quarter  ended  March 31, 2002  increased  1% to $7.8  million  from $7.7
million for the  comparable  prior year period.  As a  percentage  of net sales,
general and  administrative  expenses  increased  to 8.2% for the quarter  ended
March 31, 2002,  from 7.1% for the first  quarter of 2001.  The Company  expects
that general and  administrative  expenses in future  periods  will  increase in
absolute amounts and will fluctuate as a percentage of revenue.

     Interest  Income,  Net.  Net interest  income in the first  quarter of 2002
decreased  to  $800,000  from $1.8  million in the first  quarter  of 2001.  Net
interest income has  historically  represented  less than two percent of revenue
and has  fluctuated  as a result of investment  balances,  bank  borrowings  and
interest terms thereon.  The decrease in interest income in the first quarter of
2002 was primarily due to lower yields on the Company's investments. The primary
source of interest income is from the investment of the Company's cash.

     Net Foreign  Exchange  Gain  (Loss).  The Company  experienced  net foreign
exchange  losses in the first quarter of 2002 of $900,000  compared to losses of
$1.4 million in the first  quarter of 2001.  These results are  attributable  to
movements between the U.S. dollar and the local currencies in countries in which
the Company's sales  subsidiaries are located.  The Company recognizes the local
currency as the functional currency of its international subsidiaries.

     The Company utilizes foreign currency forward contracts to hedge a majority
of its foreign currency-denominated  receivables in order to reduce its exposure
to significant foreign currency  fluctuations.  The Company typically limits the
duration of its "receivables" foreign currency forward contracts to 90 days.

     The Company also utilizes foreign  currency  forward  contracts and foreign
currency  purchased  option  contracts  in  order  to  reduce  its  exposure  to
fluctuations in future foreign currency cash flows. The Company  purchases these
contracts  for up to 100% of its  forecasted  cash flows in selected  currencies
(primarily  the euro and the yen) and limits the duration of these  contracts to
30 months.  The  foreign  currency  purchased  option  contracts  are  purchased
"at-the-money"  or  "out-of-the-money."  As  a  result,  the  Company's  hedging
activities only partially  address its risks in foreign  currency  transactions,
and there can be no assurance that this strategy will be successful. The Company
does not invest in contracts for  speculative  purposes.  The Company's  hedging
strategy  reduced the foreign  exchange  losses by $2.5 million and $2.3 million
for the quarters ended March 31, 2002 and 2001, respectively.

     Provision  for Income Taxes.  The  provision  for income taxes  reflects an
effective  tax rate of 28% for the three months ended March 31, 2002 and 32% for
the three  months  ended March 31,  2001.  The  decrease in the  effective  rate
resulted from income tax benefits  attributable to the  extraterritorial  income
inclusion and a change in the distribution of income among taxing jurisdictions.
The Company's  effective tax rate is lower than the U.S. federal  statutory rate
of  35%  primarily  as  a  result  of  the  extraterritorial  income  exclusion,
tax-exempt interest and reduced tax rates in certain foreign jurisdictions.

Liquidity and Capital Resources

     The Company is currently financing its operations and capital  expenditures
through cash flow from  operations.  At March 31, 2002,  the Company had working
capital of  approximately  $213.4 million compared to $209.8 million at December
31, 2001. Net cash provided by operating activities in the first quarter of 2002
totaled $4.4 million.

     Accounts receivable increased to $60.2 million at March 31, 2002 from $53.6
million at December 31, 2001.  Receivable  days  outstanding  increased to 58 at
March 31, 2002  compared  to 51 at December  31,  2001.  Consolidated  inventory
balances  decreased  to $30.8  million at March 31,  2002 from $32.6  million at
December 31, 2001.  Inventory  turns  remained flat at 3.3 for the quarter ended
March 31, 2002 versus the quarter  ended  December  31,  2001.  Cash used in the
first  three  months of 2002 for the  purchase  of the  property  and  equipment
totaled $6.9 million and for the  capitalization  of software  development costs
totaled $400,000.



     In October of 2000, the Company began  construction  of an office  building
("Mopac C") located on its North Austin campus. It is currently anticipated that
a  significant  portion  of the  construction  costs  will  be  paid  out of the
Company's existing working capital. The Company estimates the total cost for the
new building,  including furniture,  fixtures and equipment, will range from $58
million to $62  million.  In  October of 2000,  the  Company  entered  into firm
commitments of approximately  $60 million for the new building.  The Company has
incurred approximately $48.1 million in construction costs as of March 31, 2002,
with the remainder  becoming payable over the next six months.  The actual level
of spending  may vary  depending on a variety of factors,  including  unforeseen
difficulties  in  construction.  Upon  completion  of the Mopac C building,  the
Company  intends  to vacate  its  existing  136,000  sq.  ft.  Millenium  office
building. The Company has signed an agreement to lease the Millenium building to
a third party and currently estimates that the net rental income from this lease
will offset  approximately 30% of the projected operating costs from the Mopac C
building.

     The Company currently expects to fund expenditures for capital requirements
as well as  liquidity  needs  created  by  changes  in  working  capital  from a
combination of available cash and short-term  investment balances and internally
generated  funds.  As of March 31, 2002, the Company had no debt  outstanding to
financial institutions.

     The Company believes that the cash flow from operations,  if any,  existing
cash balances and  short-term  investments,  will be sufficient to meet its cash
requirements for at least the next twelve months.  Cash requirements for periods
beyond the next twelve  months will depend on the Company's  profitability,  its
ability to manage working capital requirements and its rate of growth.

Financial Risk Management

     The Company's  international sales are subject to inherent risks, including
fluctuations in local  economies;  difficulties in staffing and managing foreign
operations;  greater  difficulty in accounts  receivable  collection;  costs and
risks of  localizing  products  for  foreign  countries;  unexpected  changes in
regulatory requirements,  tariffs and other trade barriers;  difficulties in the
repatriation of earnings and burdens of complying with a wide variety of foreign
laws.  The Company's  sales outside of North  America are  denominated  in local
currencies, and accordingly, the Company is subject to the risks associated with
fluctuations  in currency  rates.  In particular,  increases in the value of the
dollar  against  foreign  currencies  decrease the U.S.  dollar value of foreign
sales  requiring the Company either to increase its price in the local currency,
which could render the Company's  product  prices  noncompetitive,  or to suffer
reduced revenues and gross margins as measured in U.S. dollars.  As has occurred
in the past,  most recently in the quarter ended March 31, 2002,  these dynamics
have adversely affected revenue growth in international  markets.  The Company's
foreign  currency  hedging program  includes both foreign  currency  forward and
purchased option  contracts to reduce the effect of exchange rate  fluctuations.
However,  the hedging  program will not eliminate  all of the Company's  foreign
exchange risks. (See "Net Foreign Exchange Gain (Loss)").

     The  marketplace  for the  Company's  products  dictates  that  many of the
Company's  products be shipped  very quickly  after an order is  received.  As a
result, the Company is required to maintain significant inventories.  Therefore,
inventory  obsolescence  is a risk for the Company  due to frequent  engineering
changes,  shifting customer demand,  the emergence of new industry standards and
rapid  technological  advances  including the introduction by the Company or its
competitors of products  embodying new technology.  While the Company  maintains
valuation  allowances for excess and obsolete inventory and management continues
to monitor the adequacy of such valuation allowances,  there can be no assurance
that such valuation allowances will be sufficient.

     The Company has no debt or  off-balance  sheet debt.  As of March 31, 2002,
the Company has outstanding  guarantees for payment of foreign operating leases,
customs and foreign grants  totaling  approximately  $3.2 million.  At March 31,
2002,  the  Company  did not have  any  relationships  with  any  unconsolidated
entities  or  financial  partnerships,  such as  entities  often  referred to as
structured   finance  or  special  purpose  entities,   which  would  have  been
established for the purpose of facilitating  off-balance  sheet  arrangements or
other  contractually  narrow or limited  purposes.  As such,  the Company is not
exposed to any financing,  liquidity,  market or credit risk that could arise if
the Company were engaged in such relationships.



Market Risk

     The Company is exposed to a variety of risks,  including  foreign  currency
fluctuations and changes in the market value of its  investments.  In the normal
course of business,  the Company employs established  policies and procedures to
manage its exposure to  fluctuations  in foreign  currency values and changes in
the market value of its investments.

     Foreign Currency Hedging  Activities.  The Company's  objective in managing
its exposure to foreign  currency  exchange rate  fluctuations  is to reduce the
impact of adverse  fluctuations in such exchange rates on the Company's earnings
and cash flow.  Accordingly,  the Company  utilizes  purchased  foreign currency
option  contracts  and forward  contracts to hedge its  exposure on  anticipated
transactions and firm commitments. The principal currencies hedged are the euro,
British  pound and  Japanese  yen.  The Company  monitors  its foreign  exchange
exposures regularly to ensure the overall  effectiveness of its foreign currency
hedge  positions.  However,  there can be no  assurance  the  Company's  foreign
currency hedging activities will substantially offset the impact of fluctuations
in currency exchanges rates on its results of operations and financial position.
Based on the foreign  exchange  instruments  outstanding  at March 31, 2002,  an
adverse  change  (defined  as 20% in the Asian  currencies  and 10% in all other
currencies)  in exchange  rates would result in a decline in the aggregate  fair
market value of all  instruments  outstanding  of  approximately  $13.8 million.
However,  as the  Company  utilizes  foreign  currency  instruments  for hedging
anticipated and firmly committed  transactions,  management believes that a loss
in fair value for those instruments will be substantially offset by increases in
the value of the underlying exposure.

     Short-term  Investments.  The fair value of the  Company's  investments  in
marketable  securities  at March 31,  2002 was  $108.2  million.  The  Company's
investment  policy is to manage its investment  portfolio to preserve  principal
and liquidity while  maximizing the return on the investment  portfolio  through
the full investment of available funds.  The Company  diversifies the marketable
securities   portfolio  by  investing  in  multiple  types  of  investment-grade
securities.   The  Company's  investment  portfolio  is  primarily  invested  in
short-term  securities  with at least an  investment  grade  rating to  minimize
interest  rate and credit risk as well as to provide for an immediate  source of
funds. Based on the Company's  investment  portfolio and interest rates at March
31, 2002, a 100 basis point  increase or decrease in interest rates would result
in a decrease or increase of approximately $550,000,  respectively,  in the fair
value of the investment  portfolio,  which is not  significantly  different from
December 31, 2001.  Although changes in interest rates may affect the fair value
of the investment  portfolio and cause unrealized gains or losses, such gains or
losses would not be realized unless the investments are sold.

Issues and Outlook

     U.S./Global  Economic Slowdown.  As experienced in 2001, when the worsening
of  the  industrial  economy  resulted  in  a  deterioration  of  the  test  and
measurement  market,  the markets in which the Company does business could again
experience  the  negative  effects  of a  slowdown  in the  U.S.  and/or  Global
economies.  Downturns  in the U.S. or Global  economies  could result in reduced
purchasing  and capital  spending  in any of the  markets  served by the Company
which could have a material adverse effect on the Company's operating results.

     Budgets.  The Company has  established  an operating  budget for 2002.  The
Company's spending for 2002 could exceed this budget due to a number of factors;
including:   additional  marketing  costs  for  any  unplanned  conferences  and
tradeshows;   increased  costs  from  the  over-hiring  of  product  development
engineers or other  personnel;  increased  manufacturing  costs  resulting  from
component  supply  shortages  and/or  component price  fluctuations;  additional
construction  costs  and/or  delays  in the  construction  of the Mopac C office
building;  failure of a third party  tenant to pay rent for leased  office space
and/or  additional   litigation   expenses  related  to  intellectual   property
litigation.  Any  future  decreased  demand  for our  products  could  result in
decreased  revenue and could require the Company to revise its budget and reduce
expenditures.  Exceeding the established  operating  budget or failing to revise
its budget in  response to any  decrease  in our  revenue  could have a material
adverse effect on the Company's operating results.

     Risk of  Component  Shortages.  As has  occurred  in the past and as may be
expected to occur in the future, supply shortages of components,  including sole
source components can result in significant  additional costs and inefficiencies
in manufacturing. If the Company is unsuccessful in resolving any such component
shortages,  it will  experience  a  significant  impact on the timing of revenue
and/or an increase in manufacturing costs, either of which would have a material
adverse impact on the Company's operating results.



     Fluctuations  in  Quarterly  Results.  The  Company's  quarterly  operating
results  have  fluctuated  in the past and may  fluctuate  significantly  in the
future due to a number of  factors,  including:  changes in the mix of  products
sold; the availability and pricing of components from third parties  (especially
sole sources);  the timing of orders;  level of pricing of international  sales;
fluctuations in foreign  currency  exchange rates; the difficulty in maintaining
margins,  including the higher margins  traditionally  achieved in international
sales;  and  changes in pricing  policies by the  Company,  its  competitors  or
suppliers.  Specifically,  if the local  currencies  in which the Company  sells
weaken against the U.S. dollar,  and if the local sales prices cannot be raised,
the Company will experience a deterioration of its gross and net profit margins.
The Company expects the strength of the U.S. dollar to have a negative effect on
gross and net profit margins in future quarters.

     As has  occurred in the past and as may be expected to occur in the future,
new software  products of the Company or new operating  systems of third parties
on which the Company's products are based, often contain bugs or errors that can
result in reduced  sales and/or cause the  Company's  support costs to increase,
either of which could have a material adverse impact on the Company's  operating
results.  Furthermore,  the Company has  significant  revenues from customers in
industries such as semiconductors, automated test equipment, telecommunications,
aerospace,  defense and  automotive  which are cyclical in nature.  Downturns in
these industries could have a material adverse effect on the Company's operating
results.

     In recent years,  with the exception of 2001,  the Company's  revenues have
been  characterized  by seasonality,  with revenues  typically being  relatively
constant in the first, second and third quarters,  growing in the fourth quarter
and being  relatively  flat or declining  from the fourth quarter of the year to
the first quarter of the following year. The Company's  results of operations in
the third  quarter of 2002 may be  adversely  affected by lower sales  levels in
Europe, which typically occur during the summer months. The Company believes the
seasonality of its revenue results from the international mix of its revenue and
the  variability  of the  budgeting  and  purchasing  cycles  of  its  customers
throughout each international region. In addition, total operating expenses have
in the past  tended to be higher in the second and third  quarters of each year,
due to recruiting and significantly increased intern personnel expenses.

     New  Product  Introductions  and  Market  Acceptance.  The  market  for the
Company's  products is characterized  by rapid  technological  change,  evolving
industry  standards,   changes  in  customer  needs  and  frequent  new  product
introductions, and is therefore highly dependent upon timely product innovation.
The  Company's  success is  dependent  in part on its  ability  to  successfully
develop and  introduce  new and  enhanced  products on a timely basis to replace
declining  revenues  from  older  products,  and on  increasing  penetration  in
domestic and  international  markets.  In the past, the Company has  experienced
significant  delays between the announcement and the commercial  availability of
new  products.  Any  significant  delay in releasing  new products  could have a
material  adverse effect on the ultimate  success of a product and other related
products and could impede continued sales of predecessor products,  any of which
could have a material adverse effect on the Company's  operating results.  There
can be no assurance  that the Company will be able to introduce  new products in
accordance with announced  release dates,  that new products will achieve market
acceptance or that any such  acceptance  will be sustained  for any  significant
period.  Failure of new products to achieve or sustain market  acceptance  could
have a material  adverse effect on the Company's  operating  results.  Moreover,
there can be no assurance that the Company's  international  sales will continue
at existing levels or grow in accordance with the Company's  efforts to increase
foreign market penetration.

     Risks  Associated  with Increased  Development of Web Site. The Company has
devoted significant  resources in developing its Web site as a key marketing and
sales  tool and  expects to  continue  to do so in the  future.  There can be no
assurance that the Company will be successful in its attempt to leverage the Web
to  increase  sales.  The  Company  hosts its Web site  internally.  Failure  to
successfully  maintain the Web site and to protect it from hackers  could have a
significant impact on the Company's operating results.



     Operation  in  Intensely  Competitive  Markets.  The  markets  in which the
Company  operates  are  characterized  by  intense   competition  from  numerous
competitors,  some of which  are  divisions  of large  corporations  having  far
greater  resources  than the  Company,  and the Company  expects to face further
competition  from new market entrants in the future. A key competitor is Agilent
Technologies  Inc.  ("Agilent").  Agilent  offers  its own  line  of  instrument
controllers   and  also  offers   hardware  and  software  add-on  products  for
third-party  desktop  computers and  workstations  that provide  solutions  that
directly compete with the Company's virtual instrumentation products. Agilent is
aggressively  advertising and marketing  products that are competitive  with the
Company's products.  Because of Agilent's strong position in the instrumentation
business,  changes in its marketing  strategy or product  offerings could have a
material adverse effect on the Company's operating results.

     The  Company  believes  its  ability to compete  successfully  depends on a
number of factors  both within and outside its control,  including:  new product
introductions by competitors;  product pricing; quality and performance; success
in  developing  new  products;  adequate  manufacturing  capacity  and supply of
components and materials; efficiency of manufacturing operations;  effectiveness
of sales and marketing  resources and strategies;  strategic  relationships with
other suppliers;  timing of new product introductions by the Company; protection
of the  Company's  products by  effective  use of  intellectual  property  laws;
general market and economic  conditions;  and government  actions throughout the
world.  There  can be no  assurance  that the  Company  will be able to  compete
successfully in the future.

     Management  Information  Systems.  The  Company  relies  on  three  primary
regional centers for its management information systems. As with any information
system,  unforeseen issues may arise that could affect  management's  ability to
receive adequate, accurate and timely financial information, which in turn could
inhibit effective and timely decisions.  Furthermore, it is possible that one or
more of the Company's  three  regional  information  systems could  experience a
complete  or partial  shutdown.  If such a shutdown  occurred  near the end of a
quarter it could impact the Company's product shipments and revenues, as product
distribution  is heavily  dependent  on the  integrated  management  information
systems in each region. Accordingly,  operating results in that quarter would be
adversely  impacted  due to the  shipments,  which  would  not  occur  until the
following period. The Company is working to achieve reliable regional management
information  systems to control  costs and  improve  the  ability to deliver its
products in substantially all of its direct markets worldwide.  No assurance can
be given that the Company's  efforts will be successful.  The failure to receive
adequate,  accurate and timely financial  information could inhibit management's
ability to make effective and timely decisions.

     Risks  Associated  with  International  Operations  and Foreign  Economies.
International  sales are subject to inherent  risks,  including  fluctuations in
local  economies,  difficulties  in staffing  and managing  foreign  operations,
greater  difficulty  in  accounts  receivable  collection,  costs  and  risks of
localizing  products for foreign  countries,  unexpected  changes in  regulatory
requirements, tariffs and other trade barriers, difficulties in the repatriation
of earnings  and the burdens of complying  with a wide variety of foreign  laws.
The Company must also comply with various export regulations.  Failure to comply
with  these  regulations  could  result in fines  and/or  termination  of export
licenses,  which could have a material adverse effect on the Company's operating
results.  Additionally,  the  regulatory  environment  in some countries is very
restrictive as their governments try to protect their local economy and value of
their  local  currency  against  the U.S.  dollar.  Sales made by the  Company's
international  direct sales offices are  denominated  in local  currencies,  and
accordingly, the U.S. dollar equivalent of these sales is affected by changes in
the  weighted  average  value of the  U.S.  dollar.  This  weighted  average  is
calculated as the percentage change in the value of the currency relative to the
dollar,  multiplied by the  proportion of  international  sales  recorded in the
particular  currency.  During the  quarter  ended  March 31,  2002,  the Company
recognized  a pretax  gain of $2.6  million on its  foreign  currency  cash flow
hedging  contracts,  primarily on the Japanese  yen. As a result of these gains,
between the first  quarter of 2002 and the first  quarter of 2001,  the weighted
average  value of the U.S.  dollar  decreased  by 4.2%,  causing  an  equivalent
increase in the U.S.  dollar value of the Company's  foreign  currency sales and
expenses.  If the weighted  average  value during the first  quarter of 2002 had
been the same as that in the first  quarter of 2001,  on a  pro-forma  basis the
Company's  sales for the first  quarter of 2002 would have  decreased by 14%. If
the weighted average value during the first quarter of 2002 had been the same as
that in the first quarter of 2001, the Company's consolidated operating expenses
would have been $58.1 million,  representing a decrease of $1.0 million.  If the
U.S. dollar  strengthens again in the future, it could have a materially adverse
effect on the operating results of the Company.



     As of March 31, 2002, the Company has $6.2 million of deferred gains on yen
foreign  currency  cash flow  hedge  contracts  recorded  in  accumulated  other
comprehensive income that are expected to be reclassified into earnings over the
next 21 months.  If the yen fails to strengthen  before the  expiration of these
contracts,  and if the  Company  is unable to  increase  prices in Japan  and/or
globally,  the Company will experience a deterioration  of revenue and gross and
net profit margins,  which could have a material adverse effect on the Company's
operating results.

     Expansion of  Manufacturing  Capacity.  During 2001, the Company  completed
construction  of a second  manufacturing  facility.  This facility is located in
Hungary  and became  operational  in the fourth  quarter  of 2001.  The  Company
estimates that by 2003,  this facility will source a significant  portion of the
Company's  sales.  Currently  the Company is continuing to recruit and train the
local work force and is continuing to develop and implement  information systems
to support its  operation.  This  facility and its operation are also subject to
risks  associated  with a new  manufacturing  facility  and with doing  business
internationally,  including difficulty in managing manufacturing operations in a
foreign  country,  difficulty  in  achieving  or  maintaining  product  quality,
interruption  to  transportation  flows for  delivery  of  components  to us and
finished  goods to our  customers,  and changes in the  country's  political  or
economic  conditions.  No assurance can be given that the Company's efforts will
be successful.  Accordingly,  failure to deal with these factors could result in
interruption  in the  facility's  operation or delays in expanding its capacity,
either of which could have a material adverse effect on the Company's results of
operations.

     Products  Dependent  on Certain  Industries.  The  Company's  products  are
dependent    on   customers   in   certain    industries,    particularly    the
telecommunications, semiconductor, automotive, automated test equipment, defense
and aerospace  industries.  As  experienced  in 2001,  and as may be expected to
occur in the future, downturns characterized by diminished product demand in any
one or more of these  industries  could result in decreased  sales,  which could
have a material adverse effect on the Company's operating results.

     Dependence  on Key  Suppliers.  The Company's  manufacturing  processes use
large volumes of high-quality  components and subassemblies  supplied by outside
sources.  Several of these  components  are  available  through  sole or limited
sources.   Sole-source  components  purchased  by  the  Company  include  custom
application-specific  integrated  circuits  ("ASICs") and other components.  The
Company has in the past  experienced  delays and quality  problems in connection
with sole-source  components,  and there can be no assurance that these problems
will not recur in the future.  Accordingly,  the failure to receive  sole-source
components from suppliers could result in a material  adverse effect on revenues
and results of operations.

     Proprietary  Rights and  Intellectual  Property  Litigation.  The Company's
success depends in part on its ability to obtain and maintain  patents and other
proprietary rights relative to the technologies used in its principal  products.
Despite the Company's  efforts to protect its proprietary  rights,  unauthorized
parties  may have in the past  infringed  or violated  certain of the  Company's
intellectual property rights. The Company is currently litigating a complaint in
federal court alleging patent infringement by the products of a defendant. As is
typical in the  industry,  the Company from time to time may be notified that it
is infringing  certain patent or intellectual  property rights of others.  There
can be no assurance  that this  litigation  or any other  intellectual  property
litigation  initiated  in the  future  will  not  cause  significant  litigation
expense,  liability and a diversion of management's attention,  which may have a
material adverse effect on the Company's results of operations.

     Dependence on Key Management and Technical Personnel. The Company's success
depends to a  significant  degree upon the  continued  contributions  of its key
management,   sales,   marketing,   research  and  development  and  operational
personnel, including Dr. Truchard and other members of senior management and key
technical personnel.  The Company has no agreements providing for the employment
of any of its key  employees  for any fixed term and the Company's key employees
may  voluntarily  terminate  their  employment with the Company at any time. The
loss of the services of one or more of the Company's key employees in the future
could have a material  adverse  effect on  operating  results.  The Company also
believes  its  future  success  will  depend in large  part upon its  ability to
attract and retain additional highly skilled management,  technical,  marketing,
research and development,  and operational personnel with experience in managing
large and rapidly  changing  companies,  including  companies  acquired  through
acquisition,  as well as training,  motivating  and  supervising  employees.  In
addition, the recruiting  environment for software engineering,  sales and other
technical professionals is very competitive.  Competition for qualified software
engineers is particularly intense and is likely to result in increased personnel
costs.  Failure to attract or retain qualified  software engineers could have an
adverse effect on the Company's operating results. The Company also recruits and
employs foreign  nationals to achieve its hiring goals primarily for engineering
and software positions. There can be no guarantee that the Company will continue
to be able to recruit  foreign  nationals to the current  degree.  These factors
further intensify  competition for key personnel,  and there can be no assurance
that the Company will be  successful  in retaining its existing key personnel or
attracting and retaining additional key personnel. Failure to attract and retain
a sufficient number of technical  personnel could have a material adverse effect
on the Company's results of operations.



     Risk of Product  Liability Claims.  The Company's  products are designed in
part to provide  information upon which the users may rely. The Company attempts
to assure the quality and accuracy of the  processes  contained in its products,
and to limit its product liability exposure through  contractual  limitations on
liability,  including  disclaimers in its "shrink wrap" license  agreements with
end-users.  If future products contain errors that produce  incorrect results on
which  users  rely,  customer  acceptance  of the  Company's  products  could be
adversely  affected.  Further,  the Company could be subject to liability claims
that could have a material adverse effect on the Company's  operating results or
financial position.  Although the Company maintains liability  insurance,  there
can be no assurance that such insurance or the  contractual  provisions  used by
the Company to limit its liability will be sufficient.

Item 3.  Quantitative and Qualitative Disclosures About Market Risk

     Response to this item is included in "Item 2 - Management's  Discussion and
Analysis of Financial Conditions and Results of Operations - Market Risk" above.




                           PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

     During 2001, the Company filed a complaint in U.S. District Court,  Western
District of Texas (Midland  Division) for  declaratory  judgment  arising from a
controversy between the Company and General Patent  Corporation,  General Patent
Corporation   International,   and  Acticon  Technologies,   LLC  ("Defendants")
concerning the enforceability,  validity, and infringement of certain patents in
which  Defendants  claim  an  interest.  Defendants  claimed  that  the  Company
infringes these patents.  The Company challenged the validity and enforceability
of these  patents and  asserted  that it does not  infringe  the claims of these
patents.   The  Company   sought  a  declaratory   judgment  of  invalidity  and
non-infringement. Defendants sought damages in an unspecified amount, injunction
of the sale of certain products of the Company and attorney's fees and costs. On
April 16, 2002,  the case was  dismissed  by  stipulation  of the parties.  As a
result,  the Company reduced the  intellectual  property defense cost accrual by
approximately $500,000.

ITEM 5. OTHER INFORMATION

     From time to time the  Company's  directors,  executive  officers and other
insiders may adopt stock trading plans pursuant to Rule 10b5-1(c) promulgated by
the Securities  and Exchange  Commission  under the  Securities  Exchange Act of
1934,  as amended.  Jeffrey L. Kodosky and James J.  Truchard have made periodic
sales of the Company's stock pursuant to such plans.

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

          (a) Exhibits.

               11.1 Computation of Earnings Per Share

          (b) Reports on Form 8-K.

          No reports on Form 8-K were filed by the  Company  during the  quarter
          ended March 31, 2002.





                                    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.


                                    NATIONAL INSTRUMENTS CORPORATION
                                    Registrant



                                BY: /s/ Alex Davern
                                    Alex Davern
                                    Chief Financial Officer and Treasurer
                                    (principal financial and accounting officer)





Dated:  May 2, 2002





                        NATIONAL INSTRUMENTS CORPORATION

                                INDEX TO EXHIBITS



Exhibit No.                        Description                           Page
- -----------                        -----------                           ----
   11.1                Statement Regarding Computation of                 20
                                Earnings per Share