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:  September 30, 2001 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                      (zip code)
               offices)

        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 October 23, 2001
     Common Stock - $0.01 par value                     51,118,603








                         NATIONAL INSTRUMENTS CORPORATION


              INDEX

                                                                        Page No.

              PART I.  FINANCIAL INFORMATION

Item 1        Financial Statements:

                 Consolidated Balance Sheets
                 September 30, 2001 (unaudited) and December 31, 2000      3

                 Consolidated Statements of Income (unaudited)
                 Three months and nine months ended September 30, 2001
                 and 2000                                                  4

                 Consolidated Statements of Cash Flows (unaudited)
                 Nine months ended September 30, 2001 and 2000             5

                 Notes to Consolidated Financial Statements                6

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


              PART II.  OTHER INFORMATION

Item 1        Legal Proceedings                                           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)

                                                    September 30,  December 31,
                                                        2001          2000
                                                    -------------  ------------
Assets                                               (unaudited)
Current assets:
   Cash and cash equivalents....................    $     74,787   $    75,277
   Short-term investments.......................          88,460        79,525
   Accounts receivable, net.....................          53,348        74,704
   Inventories, net.............................          34,994        33,292
   Prepaid expenses and other current assets....          20,830        13,499
   Deferred income tax, net.....................           7,118         8,262
                                                    -------------  ------------
      Total current assets......................         279,537       284,559
Property and equipment, net.....................         120,358        84,694
Intangibles and other assets....................          23,443        20,097
                                                    -------------  ------------
      Total assets..............................    $    423,338   $   389,350
                                                    =============  ============

Liabilities and Stockholders' Equity
Current liabilities:
   Accounts payable.............................    $     33,992   $    30,365
   Accrued compensation.........................          14,208        12,720
   Accrued expenses and other liabilities.......           7,608         9,923
   Income taxes payable.........................           4,174         3,366
   Other taxes payable..........................           5,876         7,977
                                                    -------------  ------------
      Total current liabilities.................          65,858        64,351
Deferred income taxes...........................           3,899         3,976
                                                    -------------  ------------
      Total liabilities.........................          69,757        68,327
                                                    -------------  ------------
Commitments and contingencies                                 --            --
Stockholders' equity:
   Common Stock: par value $0.01; 180,000,000
   shares authorized; 50,902,565 and 50,634,603
   shares issued and outstanding, respectively..             509           506
Additional paid-in capital......................          72,331        69,534
Retained earnings...............................         283,068       254,006
Accumulated other comprehensive loss............          (2,327)       (3,023)
                                                    -------------  ------------
      Total stockholders' equity................         353,581       321,023
                                                    -------------  ------------
      Total liabilities and stockholders' equity    $    423,338   $   389,350
                                                    =============  ============

    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    Nine Months Ended
                                          September 30,        September 30,
                                      --------------------  --------------------
                                        2001       2000       2001       2000
                                      ---------  ---------  ---------  ---------

Net sales...........................  $ 85,062   $102,247   $290,849   $295,902
Cost of sales.......................    23,288     24,417     75,789     70,687
                                      ---------  ---------  ---------  ---------
  Gross profit......................    61,774     77,830    215,060    225,215
                                      ---------  ---------  ---------  ---------
Operating expenses:
   Sales and marketing..............    34,275     37,302    109,167    106,506
   Research and development.........    14,920     14,690     45,950     40,788
   General and administrative.......     6,070      7,434     21,459     21,289
                                      ---------  ---------  ---------  ---------
      Total operating expenses......    55,265     59,426    176,576    168,583
                                      ---------  ---------  ---------  ---------

      Operating income..............     6,509     18,404     38,484     56,632

Other income (expense):
   Interest income, net.............     1,303      1,543      4,574      4,068
   Net foreign exchange gain (loss).       341       (630)      (921)    (1,756)
   Other income.....................       206         90        601        310
                                      ---------  ---------  ---------  ---------

Income before income taxes..........     8,359     19,407     42,738     59,254
Provision for income taxes..........     2,674      6,210     13,676     18,961
                                      ---------  ---------  ---------  ---------

      Net income....................  $  5,685   $ 13,197   $ 29,062   $ 40,293
                                      =========  =========  =========  =========

Basic earnings per share............  $   0.11   $   0.26   $   0.57   $   0.80
                                      =========  =========  =========  =========

Weighted average shares
 outstanding-basic..................    50,956     50,364     50,848     50,247
                                      =========  =========  =========  =========

Diluted earnings per share..........  $   0.11   $   0.25   $   0.54   $   0.75
                                      =========  =========  =========  =========

Weighted average shares
 outstanding-diluted................    53,288     53,612     53,682     53,531
                                      =========  =========  =========  =========

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





                        NATIONAL INSTRUMENTS CORPORATION
                       CONSOLIDATED STATEMENTS OF CASH FLOWS
                                  (in thousands)
                                    (unaudited)
                                                          Nine Months Ended
                                                            September 30,
                                                      --------------------------
                                                          2001          2000
                                                      ------------  ------------
Cash flow from operating activities:
   Net income......................................   $    29,062   $    40,293
   Adjustments to reconcile net income to cash
   provided by operating activities:
      Charges to income not requiring cash outlays:
        Depreciation and amortization..............        12,393        12,064
        Provision for deferred income taxes........         1,067         1,999
      Changes in operating assets and liabilities:
        Decrease (increase) in accounts receivable.        21,356        (6,837)
        Increase in inventory......................        (1,702)       (5,460)
        Increase in prepaid expense and other assets       (8,971)       (8,186)
        Increase in current liabilities............         1,507         5,474
                                                      ------------  ------------
      Net cash provided by operating activities....        54,712        39,347
                                                      ------------  ------------

Cash flow from investing activities:
   Capital expenditures............................       (45,149)      (16,643)
   Additions to intangibles .......................        (3,918)       (5,073)
   Purchases of short-term investments.............      (110,790)      (68,679)
   Sales of short-term investments.................       101,855        63,747
                                                      ------------  ------------
      Net cash used in investing activities........       (58,002)      (26,648)
                                                      ------------  ------------

Cash flow from financing activities:
   Repayments of long-term debt....................            --          (783)
   Proceeds from issuance of common stock, net of
   repurchases.....................................         2,800         5,208
                                                      ------------  ------------
      Net cash provided by financing activities....         2,800         4,425
                                                      ------------  ------------

Net (decrease) increase in cash and cash equivalents         (490)       17,124

Cash and cash equivalents at beginning of period...        75,277        45,309
                                                      ------------  ------------

Cash and cash equivalents at end of period.........   $    74,787   $    62,433
                                                      ============  ============

    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, 2000,  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 September 30, 2001 and December 31, 2000, and
the results of  operations  for the  three-month  and  nine-month  periods ended
September 30, 2001 and 2000, and the cash flows for the nine-month periods ended
September  30,  2001  and  2000.  Operating  results  for  the  three-month  and
nine-month  periods ended September 30, 2001 are not  necessarily  indicative of
the results that may be expected for the year ending December 31, 2001.

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  the basic EPS and
diluted EPS for the three-month and nine-month  periods ended September 30, 2001
and 2000, respectively, are as follows (in thousands):

                                   Three Months Ended        Nine Months Ended
                                      September 30,            September 30,
                                 ----------------------   ----------------------
                                      (unaudited)              (unaudited)
                                    2001        2000         2001        2000
                                 ----------  ----------   ----------  ----------

Weighted average shares
 outstanding-basic............      50,956      50,364       50,848      50,247
Plus: Common share equivalents
   Stock options..............       2,332       3,248        2,834       3,284
                                 ----------  ----------   ----------  ----------
Weighted average shares
 outstanding-diluted..........      53,288      53,612       53,682      53,531
                                 ==========  ==========   ==========  ==========

Stock options to acquire  1,541,000 and 1,292,000  shares for the quarters ended
September 30, 2001 and 2000, respectively,  and 1,382,000 and 871,000 shares for
the nine  months  ended  September  30,  2001 and 2000,  respectively,  were not
included in the computations of diluted earnings per share because the effect of
including the stock options would have been anti-dilutive.

NOTE 3 - Inventories

Inventories, net consist of the following (in thousands):

                                      September 30,    December 31,
                                          2001             2000
                                       (unaudited)
                                     --------------   --------------
Raw materials                        $    17,755       $   17,298
Work-in-process                              716              978
Finished goods                            16,523           15,016
                                     --------------   --------------
                                     $    34,994       $   33,292
                                     ==============   ==============






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  September 30, 2001 and 2000 is $4.7 million and $13.1  million,
respectively,  and  includes  other  comprehensive  loss  of  $1.0  million  and
$108,000,   respectively.   For  the  first  nine   months  of  2001  and  2000,
comprehensive  income is $29.8  million  and $41.6  million,  respectively,  and
includes other comprehensive income of $697,000 and $1.3 million, respectively.

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       Nine Months Ended
                                       September 30,           September 30,
                                  ----------------------  ----------------------
                                        (unaudited)            (unaudited)
                                     2001        2000        2001        2000
                                  ----------  ----------  ----------  ----------
Net sales:
Americas:
  Unaffiliated customer sales..   $  44,671   $  56,838   $ 151,729   $ 159,006
  Geographic transfers.........      12,329      13,374      41,591      39,302
                                  ----------  ----------  ----------  ----------
                                     57,000      70,212     193,320     198,308
                                  ----------  ----------  ----------  ----------

Europe:
  Unaffiliated customer sales..      26,991      30,854      93,879      94,274
                                  ----------  ----------  ----------  ----------
Asia Pacific:
  Unaffiliated customer sales..      13,400      14,555      45,241      42,622
                                  ----------  ----------  ----------  ----------
Eliminations...................     (12,329)    (13,374)    (41,591)    (39,302)
                                  ----------  ----------  ----------  ----------
                                  $  85,062   $ 102,247   $ 290,849   $ 295,902
                                  ==========  ==========  ==========  ==========




                                  Three Months Ended       Nine Months Ended
                                     September 30,           September 30,
                                ----------------------  ----------------------
                                      (unaudited)             (unaudited)
                                   2001        2000        2001        2000
                                ----------  ----------  ----------  ----------
Operating income:
Americas...................     $   8,583   $  15,953   $  34,268   $  46,243
Europe.....................         7,524      10,456      29,801      32,925
Asia Pacific...............         5,322       6,685      20,365      18,252
Unallocated:
Research and development
 expenses..................       (14,920)    (14,690)    (45,950)    (40,788)
                                ----------  ----------  ----------  ----------
                                $   6,509   $  18,404   $  38,484   $  56,632
                                ==========  ==========  ==========  ==========

                                 September 30,     December 31,
                                     2001              2000
                                  (unaudited)
                                ---------------  ---------------
Identifiable assets:
Americas...............          $   347,175      $   324,881
Europe.................               60,341           52,056
Asia Pacific...........               11,516           12,413
                                ---------------  ---------------
                                 $   419,032      $   389,350
                                ===============  ===============

NOTE 6 - Commitments and Contingencies

On May 2, 2000, the Company was served by Cognex  Corporation,  asserting patent
infringement  of  two  Cognex   patents,   copyright   infringement,   trademark
infringement and unfair competition.  Cognex sought permanent injunctive relief,
actual monetary damages in an unspecified amount,  attorney's fees and costs. On
June 21, 2000, the Company filed a response to their lawsuit denying all claims.
In the fourth quarter of 2000,  the Company  accrued $2.5 million of anticipated
intellectual property defense costs that were probable of being incurred. During
the current quarter ended September 30, 2001, the Company and Cognex settled the
dispute and Cognex  dismissed  the case with  prejudice on August 13, 2001. As a
result,  the Company reduced the  intellectual  property defense cost accrual by
approximately $1.2 million.





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,"  "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 Issues and Outlook section and
financial statement line item discussions below.  Readers are also encouraged to
refer to the Company's Annual Report on Form 10-K for further  discussion of the
Company's business and the risks and opportunities 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   Nine Months Ended
                                             September 30,       September 30,
                                          ------------------  ------------------
                                            2001      2000      2001      2000
                                          --------  --------  --------  --------
Net sales:
   Americas                                  52.5%     55.6%     52.2%     53.7%
   Europe                                    31.7      29.5      32.3      31.9
   Asia Pacific                              15.8      14.9      15.5      14.4
                                          --------  --------  --------  --------
   Consolidated net sales                   100.0     100.0     100.0     100.0
Cost of sales                                27.4      23.9      26.1      23.9
                                          --------  --------  --------  --------
   Gross profit                              72.6      76.1      73.9      76.1
                                          --------  --------  --------  --------
Operating expenses:
   Sales and marketing                       40.3      36.5      37.5      36.0
   Research and development                  17.5      14.4      15.8      13.8
   General and administrative                 7.1       7.2       7.4       7.2
                                          --------  --------  --------  --------
   Total operating expenses                  64.9      58.1      60.7      57.0
                                          --------  --------  --------  --------
     Operating income                         7.7      18.0      13.2      19.1
Other income (expense):
   Interest income, net                       1.5       1.5       1.6       1.4
   Net foreign exchange gain (loss)           0.4      (0.6)     (0.3)     (0.6)
   Other income                               0.2       0.1       0.2       0.1
                                          --------  --------  --------  --------
Income before income taxes                    9.8      19.0      14.7      20.0
Provision for income taxes                    3.1       6.1       4.7       6.4
                                          --------  --------  --------  --------

   Net income                                 6.7%     12.9%     10.0%     13.6%
                                          ========  ========  ========  ========

     Net Sales.  Consolidated  net sales decreased by $17.2 million or 16.8% for
the three months ended  September 30, 2001 to $85.1 million from $102.2  million
for the three months ended  September 30, 2000,  and  decreased  $5.1 million or
1.7% to $290.8 million for the nine months ended  September 30, 2001 from $295.9
million  for the  comparable  period  in the prior  year.  The  majority  of the
decrease in sales is attributable to the approximate 40% decline in the sales of
hardware  products  that  are used to  control  traditional  instruments,  which
resulted from the continued  worsening of the industrial  economy and the severe
deterioration of the test and measurement market.

     Sales in the  Americas in the third  quarter of 2001  decreased by 21% from
the third  quarter of 2000 and sales in the  Americas  for the nine months ended
September  30, 2001  decreased  by 5% from the nine months ended  September  30,
2000. Sales outside of North America,  as a percentage of consolidated sales for
the quarter and nine months  ended  September  30, 2001  increased to 47.5% from
44.4% and to 47.8% from 46.3% over the  comparable  2000  periods as a result of
lower relative sales in the Americas.  Compared to 2000, the Company's  European
sales  decreased by 10.7% to $27.0 million for the quarter  ended  September 30,
2001 and decreased by 0.4% to $93.9 million for the nine months ended  September
30,  2001.  Sales in Asia Pacific  decreased  by 11.8% to $13.4  million for the
quarter ended  September  30, 2001 compared to 2000 and increased  6.1% to $45.2
million for the nine months ended September 30, 2001 compared to the same period
in 2000.  The  Company  expects  sales  outside of North  America to continue to
represent a significant portion of its revenue.

     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 risk
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 current  quarter  ended  September 30, 2001,
these  dynamics have adversely  affected  revenue  growth and  profitability  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)" below).

     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.  Between the third
quarter  of 2000 and the third  quarter of 2001 the  weighted  value of the U.S.
dollar  increased by 11.2%,  causing an equivalent  decrease 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 third quarter of 2001 had been the same
as that in the third quarter of 2000, the Company's  sales for the third quarter
of 2001 would have  decreased by 12.7%.  European sales for the third quarter of
2001 would have increased by 1% over third quarter 2000.  Asia Pacific sales for
the third  quarter of 2001 would have  decreased  by 5% from third  quarter 2000
sales.  If the  weighted  average  value of the dollar in the nine months  ended
September 30, 2001 had been the same as that in the nine months ended  September
30, 2000, the Company's  year-to-date sales would have increased by 3% over 2000
year-to-date 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 decreasing  operating  expenses $2.6 million for the nine months ended
September 30, 2001 and by $567,000 for the quarter ended September 30, 2001.

     Gross Profit. As a percentage of net sales, gross profit decreased to 72.6%
for the third  quarter  of 2001 from  76.1%  for the third  quarter  of 2000 and
decreased  to 73.9%  for the  first  nine  months  of 2001  from  76.1%  for the
comparable period a year ago. Approximately 60% of the lower margin in the third
quarter of 2001 is  attributable  to unfavorable  foreign  exchange  rates,  and
approximately  40% is attributable to charges resulting from lower sales volume.
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 is currently working to establish a new manufacturing  facility
in Hungary in the fourth quarter of 2001. Any delay in making this manufacturing
capacity  available  could  have a  material  adverse  effect on the  results of
operations.

     Sales and Marketing.  Sales and marketing expenses for the third quarter of
2001  decreased to $34.3  million,  an 8.1%  decrease,  as compared to the third
quarter of 2000,  and increased 2.5% to $109.2 million for the first nine months
of 2001 from the comparable 2000 period. As a percentage of net sales, sales and
marketing  expenses  were 40.3% and 36.5% for the quarters  ended  September 30,
2001 and 2000,  respectively,  and 37.5%  and  36.0% for the nine  months  ended
September  30, 2001 and 2000,  respectively.  The increase in these  expenses in
absolute  dollar  amounts for the nine  months  ended  September  30,  2001,  is
attributable to increases in sales and marketing personnel both  internationally
and in North America.  The decrease in sales and marketing  expenses in absolute
dollar  amounts for the quarter ended  September 30, 2001,  is  attributable  to
decreases in marketing literature, advertising and special event activities. 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
$14.9 million for the quarter  ended  September  30, 2001, a 1.6%  increase,  as
compared to $14.7  million for the three months ended  September  30, 2000,  and
increased  12.7% to $46.0  million for the nine months ended  September 30, 2001
from $40.8 million in the comparable 2000 period.  As a percentage of net sales,
research  and  development  expenses  represented  17.5% and 14.4% for the third
quarters ended  September 30, 2001 and 2000,  respectively,  and 15.8% and 13.8%
for the nine  months  ended  September  30,  2001 and  2000,  respectively.  The
increase  in  research  and  development  costs  in  absolute  amounts  and as a
percentage  of sales in each period is due to increases in personnel  costs from
hiring of additional  product  development  engineers.  Research and development
personnel increased from 661 at September 30, 2000 to 728 at September 30, 2001.
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 the
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  $802,000 and $680,000 for the  quarters  ended  September  30, 2001 and
2000,  respectively,  and $2.3 million and $1.9  million  during the nine months
ended  September 30, 2001 and 2000,  respectively.  Software  development  costs
capitalized  were $1.2 million and $1.3 million for the quarters ended September
30, 2001 and 2000, respectively, and $3.2 million and $3.7 million for the first
nine months of 2001 and 2000, respectively. The amounts capitalized in the third
quarter and first nine months of 2001  include  amounts  related to LabVIEW 6.1,
Measurement Studio 6.0 and TestStand 2.0.

     General and  Administrative.  General and  administrative  expenses for the
third quarter ended September 30, 2001 decreased 18.3% to $6.1 million from $7.4
million for the comparable prior year period. For the first nine months of 2001,
general and  administrative  expenses increased 0.8% to $21.5 million from $21.3
million for the first nine months of 2000. As a percentage of net sales, general
and  administrative  expenses  decreased to 7.1% for the quarter ended September
30, 2001 from 7.2% for the third  quarter of 2000.  During the first nine months
of 2001, general and administrative  expenses as a percentage of sales increased
to 7.4% from 7.2% in the comparable  prior year period.  The decrease in general
and  administrative  expenses for the quarter ended September 30, 2001, from the
comparable  prior year period is attributable to reduced  intellectual  property
defense costs of approximately $1.2 million and to the operational  efficiencies
resulting  from  continued  systems  improvement.   The  Company's  general  and
administrative  expense  increased in absolute  dollars and as a  percentage  of
sales in the first nine months of 2001 due to additional personnel.  The Company
expects that general and administrative expenses in future periods will increase
in absolute amounts and will fluctuate as a percentage of net sales.

     Interest  Income,  Net.  Net interest  income in the third  quarter of 2001
decreased to $1.3  million  from $1.5  million in the third  quarter of 2000 and
increased  to $4.6  million  from $4.1 million for the first nine months of 2001
and 2000. Net interest income has represented less than two percent of net sales
and has  fluctuated  as a result  of  investment  balances  and  interest  terms
thereon.

     Net Foreign Exchange Gain (Loss).  Net foreign exchange gains recognized in
the third quarter of 2001 were $341,000  compared to net foreign exchange losses
of $630,000 recognized in the third quarter of 2000. Net foreign exchange losses
of $921,000 were recognized for the first nine months of 2001 compared to losses
of $1.8 million for the first nine months of 2000.  Foreign  exchange  gains and
losses 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 net foreign  exchange gains in the third quarter of 2001 and the decrease in
net  foreign  exchange  losses  recognized  in the first nine  months of 2001 is
mainly due to the strengthening of the U.S. dollar as compared to the comparable
periods in 2000.

     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,  yen and pound  sterling) 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 gains by $587,000
during the quarter ended  September 30, 2001,  and reduced the foreign  exchange
losses by $4.3 million for the nine months ended September 30, 2001.

     Provision  for Income Taxes.  The  provision  for income taxes  reflects an
effective tax rate of 32% for the three and nine months ended September 30, 2001
and  2000,  respectively.  The  effective  tax  rate is lower  than the  federal
statutory  rate  primarily  as a result of  tax-exempt  interest and the foreign
sales corporation  benefit.  As of September 30, 2001, fourteen of the Company's
subsidiaries had available, for income tax purposes,  foreign net operating loss
carryforwards  of  approximately  $6.2  million,  of which $1.2 million  expires
between 2002 and 2010. The remaining $5.0 million of loss  carryforwards  may be
carried forward  indefinitely to offset future taxable income in the related tax
jurisdictions.

Liquidity and Capital Resources

     The Company is currently financing its operations and capital  expenditures
through  cash flow from  operations.  At  September  30,  2001,  the Company had
working capital of  approximately  $213.7 million  compared to $220.2 million at
December 31, 2000. In the first nine months of 2001, the Company generated $54.7
million of cash provided by operating  activities,  primarily from net income of
$29.1 million and from the $21.4 million decrease in accounts receivables.

     Accounts  receivable  decreased to $53.3 million at September 30, 2001 from
$74.7 million at December 31, 2000.  Days sales  outstanding  decreased to 57 at
September 30, 2001 compared to 60 at December 31, 2000.  Consolidated  inventory
balances  increased to $35.0 million at September 30, 2001 from $33.3 million at
December 31, 2000. Inventory turns of 2.7 represent a decrease from turns of 3.5
at  December  31,  2000.  Cash  used in the  first  nine  months of 2001 for the
purchase  of the  property  and  equipment  totaled  $45.1  million  and for the
capitalization of software development costs totaled $3.2 million.

     In October of 2000, the Company began  construction  of an office  building
("Mopac C") located on the 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  $34.9 million in construction costs as of September 30,
2001, with the remainder  becoming  payable over the next 10 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.

     In May of 2001, the Company began  construction  of a second  manufacturing
facility  located  in  Hungary.   The  Company   estimates  that  this  European
manufacturing  facility will be operational by Q4 of 2001, and that by 2003 will
source a significant portion of the Company's  international sales. The location
of the  facility  has a cost base and tax rate  significantly  lower than in the
U.S.,  which  should have the effect of reducing the cost of  manufacturing  and
lowering the consolidated tax rate. However,  there can be no assurance that the
actual  manufacturing costs will be lower. It is currently  anticipated that the
construction  costs will be paid out of the Company's  existing working capital.
The Company estimates the total cost for the new facility,  including furniture,
fixtures and equipment,  will be  approximately  $17.0 million.  The Company has
incurred  approximately  $8.3 million in construction  costs as of September 30,
2001,  with the  remainder  payable over the next 6 months.  The actual level of
spending  may vary  depending  on a variety  of  factors,  including  unforeseen
difficulties in construction.

     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 September 30, 2001, the Company had no debt  outstanding
to financial institutions.

     The Company believes that its 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 depend on the Company's profitability, its ability
to manage working capital requirements and its rate of growth.

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 exchange rates on its results of operations and financial  position.
Based on the foreign exchange instruments  outstanding at September 30, 2001, 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  $16.9 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 September 30, 2001 was $88.5  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
September  30,  2001, a 100 basis point  increase or decrease in interest  rates
would result in a decrease or increase of approximately $450,000,  respectively,
in the  fair  value of the  investment  portfolio,  which  is not  significantly
different from December 31, 2000.  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 occurred in the current  quarter ended
September  30, 2001 and as has occurred in the past, a slowing U.S.  economy may
result in decreased  demand for automated  test  equipment,  semiconductors  and
other  products.  The markets in which the Company does business may  experience
the  negative  effects  of a  slowdown  in the U.S.,  and/or  Global  economies.
Downturns in the U.S. or Global  economies could have a material  adverse effect
on the Company's operating results.

     Budgets.  The Company has established an operating budget for the remainder
of 2001. The Company's  spending for the remainder of the year 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 European
manufacturing  facility in Hungary;  additional  litigation  expenses related to
intellectual  property  litigation.  Exceeding the established  operating budget
could have a material adverse effect on the Company's operating results.

     Risk of Component Shortages.  As has occurred in the past, most recently in
the quarter ended March 31, 2001, 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.

     Expansion of Manufacturing  Capacity. The Company is working to establish a
new manufacturing  facility which is to be located in Hungary. It is anticipated
that this facility will be in operation by Q4, 2001.  Any delay in bringing this
facility into production  could have a material  adverse effect on the Company's
results of  operations.  Factors  which could result in a delay in bringing this
new  facility  into  production   include   possible  delays  in   construction,
difficulties  in  recruiting  and  training  the local work  force and  possible
difficulties in establishing the required information systems.

     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  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.

     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 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 assurances 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  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.  Between
the third  quarter of 2000 and the third quarter of 2001,  the weighted  average
value of the U.S. dollar increased by 11.2%,  causing an equivalent  decrease in
the U.S. dollar value of the Company's  foreign currency sales and expenses.  If
the weighted  average  value during 2001 had been the same as that in 2000,  the
Company's  sales for the third quarter of 2001 would have decreased by 12.7%. If
the weighted  average value of the dollar in the nine months ended September 30,
2001 had been the same as in the  comparable  prior year period,  the  Company's
year-to-date  sales would have increased by 3% over 2000 year-to-date  sales. If
the weighted  average  value during 2001 had been the same as that in 2000,  the
Company's  consolidated  operating  expenses  would  have  been  $38.7  million,
representing an increase of $567,000.  If the U.S. dollar  strengthens  again in
the future,  it could have a materially  adverse effect on the operating results
of the Company.

     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.  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.  The Company is currently  litigating a
complaint in federal court  alleging  patent  infringement  by the products of a
defendant,  and is party to a declaratory  judgement action alleging  invalidity
and  non-infringement  on the  patents  of  another  defendant.  There can be no
assurance that this litigation or 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
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  affect 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 the 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 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

     On May 2, 2000,  the  Company  was served by Cognex  Corporation  asserting
patent  infringement of two Cognex patents,  copyright  infringement,  trademark
infringement and unfair competition.  Cognex sought permanent injunctive relief,
actual monetary damages in an unspecified amount,  attorney's fees and costs. On
June 21, 2000, the Company filed a response to their lawsuit denying all claims.
In the fourth quarter of 2000,  the Company  accrued $2.5 million of anticipated
intellectual property defense costs that were probable of being incurred. During
the current quarter ended September 30, 2001, the Company and Cognex settled the
dispute and Cognex  dismissed  the case with  prejudice on August 13, 2001. As a
result,  the Company reduced the  intellectual  property defense cost accrual by
approximately $1.2 million.

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 September 30, 2001.






                                    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:  October 25, 2001






                         NATIONAL INSTRUMENTS CORPORATION

                                 INDEX TO EXHIBITS



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