UNITED STATES
                       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:  June 30, 2003 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  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined in Rule 126-2 of the Exchange Act). 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 July 23, 2003
     Common Stock - $0.01 par value                    51,627,233



                        NATIONAL INSTRUMENTS CORPORATION


         INDEX

         PART I.  FINANCIAL INFORMATION                                Page No.
                                                                       --------

Item 1   Financial Statements:

            Consolidated Balance Sheets
            June 30, 2003 (unaudited) and December 31, 2002................3

            Consolidated Statements of Income (unaudited)
            Three months and six months ended June 30, 2003 and 2002.......4

            Consolidated Statements of Cash Flows (unaudited)
            Six months ended June 30, 2003 and 2002........................5

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

Item 2   Management's Discussion and Analysis of Financial
         Condition and Results of Operations..............................10

Item 3   Quantitative and Qualitative Disclosures about Market Risk.......18

Item 4   Controls and Procedures..........................................18

         PART II.  OTHER INFORMATION

Item 1   Legal Proceedings................................................19

Item 4   Submission of Matters to a Vote of Security Holders..............19

Item 6   Exhibits and Reports on Form 8-K.................................20

         Signatures.......................................................21



                         PART I - FINANCIAL INFORMATION

ITEM 1. Financial Statements

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

                                                        June 30,    December 31,
                                                          2003          2002
                                                      ------------  ------------
Assets                                                (unaudited)
Current assets:
   Cash and cash equivalents.......................    $   28,062    $   40,240
   Short-term investments..........................       140,029       113,638
   Accounts receivable, net........................        61,760        62,981
   Inventories, net................................        35,896        39,247
   Prepaid expenses and other current assets.......        11,632        13,756
   Deferred income tax, net........................         7,155         8,104
                                                      ------------  ------------
      Total current assets.........................       284,534       277,966
Property and equipment, net........................       150,395       152,133
Intangibles, net and other assets..................        38,835        28,615
                                                      ------------  ------------
      Total assets.................................    $  473,764    $  458,714
                                                      ============  ============

Liabilities and Stockholders' Equity
Current liabilities:
   Accounts payable................................    $   25,436    $   25,578
   Accrued compensation............................        11,078         9,555
   Accrued expenses and other liabilities..........        15,231        13,507
   Income taxes payable............................           206         6,153
   Other taxes payable.............................         7,584        11,720
                                                      ------------  ------------
      Total current liabilities....................        59,535        66,513
Deferred income taxes..............................         5,140         5,738
                                                      ------------  ------------
      Total liabilities............................        64,675        72,251
                                                      ------------  ------------
Commitments and contingencies......................            --            --
Stockholders' equity:
   Common stock: par value $0.01; 180,000,000
   shares authorized; 51,570,767 and 51,074,607
   shares issued and outstanding, respectively.....           516           511
   Additional paid-in capital......................        79,773        72,063
   Retained earnings...............................       335,980       321,813
   Accumulated other comprehensive loss............        (7,180)       (7,924)
                                                      ------------  ------------
      Total stockholders' equity...................       409,089       386,463
                                                      ------------  ------------
      Total liabilities and stockholders' equity...    $  473,764    $  458,714
                                                      ============  ============

   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       Six Months Ended
                                          June 30,               June 30,
                                  ----------------------  ----------------------
                                     2003        2002        2003        2002
                                  ----------  ----------  ----------  ----------

Net sales.......................  $ 100,165   $  93,505   $ 199,338   $ 188,244
Cost of sales...................     27,150      26,603      53,163      51,961
                                  ----------  ----------  ----------  ----------
   Gross profit.................     73,015      66,902     146,175     136,283
                                  ----------  ----------  ----------  ----------
Operating expenses:
   Sales and marketing..........     38,124      33,566      76,669      68,974
   Research and development.....     16,876      15,734      32,127      31,667
   General and administrative...      9,201       8,842      20,240      16,628
                                  ----------  ----------  ----------  ----------
      Total operating expenses..     64,201      58,142     129,036     117,269
                                  ----------  ----------  ----------  ----------

      Operating income..........      8,814       8,760      17,139      19,014

Other income (expense):
   Interest income, net.........        620         839       1,306       1,635
   Net foreign exchange gain
   (loss).......................        340         217         325        (677)
   Other income, net............         98         445         119         522
                                  ----------  ----------  ----------  ----------
Income before income taxes......      9,872      10,261      18,889      20,494
Provision for income taxes......      2,468       2,873       4,722       5,738
                                  ----------  ----------  ----------  ----------

      Net income................  $   7,404   $   7,388   $  14,167   $  14,756
                                  ==========  ==========  ==========  ==========

Basic earnings per share........  $    0.14   $    0.14   $    0.28   $    0.29
                                  ==========  ==========  ==========  ==========

Weighted average shares
outstanding-basic...............     51,490      51,449      51,324      51,331
                                  ==========  ==========  ==========  ==========

Diluted earnings per share......  $    0.14   $    0.14   $    0.27   $    0.27
                                  ==========  ==========  ==========  ==========

Weighted average shares
outstanding-diluted.............     53,633      53,974      53,453      53,966
                                  ==========  ==========  ==========  ==========

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





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

                                                            Six Months Ended
                                                                 June 30,
                                                          ----------------------
                                                             2003        2002
                                                          ----------  ----------
Cash flow from operating activities:
   Net income.........................................    $  14,167   $  14,756
   Adjustments to reconcile net income to cash
   provided by operating activities:
      Charges to income not requiring cash outlays:
        Depreciation and amortization.................       12,390       9,922
        Benefit from deferred income taxes............         (965)     (3,620)
        Tax benefit from stock option plans...........        1,315       1,011
      Changes in operating assets and liabilities:
        Decrease (increase) in accounts receivable....        1,221      (6,036)
        Decrease in inventory.........................        3,351          97
        Decrease in prepaid expense and other assets..        2,511         336
        Increase (decrease) in current liabilities....       (6,978)      5,024
                                                          ----------  ----------
      Net cash provided by operating activities.......       27,012      21,490
                                                          ----------  ----------

Cash flow from investing activities:
   Capital expenditures...............................       (7,759)    (15,607)
   Capitalization of internally developed software....       (8,432)     (1,386)
   Additions to other intangibles.....................       (4,323)     (1,489)
   Purchases of short-term investments................      (77,042)    (81,026)
   Sales of short-term investments....................       50,651      83,414
                                                          ----------  ----------
      Net cash used in investing activities...........      (46,905)    (16,094)
                                                          ----------  ----------
Cash flow from financing activities:
   Proceeds from issuance of common stock, net of
   repurchases........................................        7,715       6,095
                                                          ----------  ----------
      Net cash provided by financing activities.......        7,715       6,095
                                                          ----------  ----------

Net increase (decrease) in cash and cash equivalents..      (12,178)     11,491
Cash and cash equivalents at beginning of period......       40,240      49,089
                                                          ----------  ----------

Cash and cash equivalents at end of period............    $  28,062   $  60,580
                                                          ==========  ==========

   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, 2002,  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 June 30, 2003 and December 31, 2002, and the
results of operations for the three-month  and six-month  periods ended June 30,
2003 and 2002, and the cash flows for the six-month  periods ended June 30, 2003
and 2002. Operating results for the three-month and six-month periods ended June
30, 2003 are not necessarily  indicative of the results that may be expected for
the year ending December 31, 2003.

Certain  prior year  amounts  have been  reclassified  to conform  with the 2003
presentation.

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  and  six-month  periods  ended June 30, 2003 and 2002,
respectively, are as follows (in thousands):

                                       Three Months Ended     Six Months Ended
                                            June 30,              June 30,
                                      --------------------  --------------------
                                          (unaudited)           (unaudited)
                                        2003       2002       2003       2002
                                      ---------  ---------  ---------  ---------
Weighted average shares
outstanding-basic.................      51,490     51,449     51,324     51,331
Plus: Common share equivalents
   Stock options..................       2,143      2,525      2,129      2,635
                                      ---------  ---------  ---------  ---------
Weighted average shares
outstanding-diluted...............      53,633     53,974     53,453     53,966
                                      =========  =========  =========  =========

Stock options to acquire  1,564,000 and 1,533,000  shares for the quarters ended
June 30, 2003 and 2002, respectively, and 1,551,000 and 1,464,000 shares for the
six months  ended June 30,  2003 and 2002,  respectively,  were  excluded in the
computations  of diluted EPS because the effect of including  the stock  options
would have been anti-dilutive.

NOTE 3 - Inventories, net

Inventories consist of the following (in thousands):

                                         June 30,    December 31,
                                           2003          2002
                                       (unaudited)
                                       ------------  ------------
Raw materials...................        $   17,555    $   21,127
Work-in-process.................             1,115         1,324
Finished goods..................            17,226        16,796
                                       ------------  ------------
                                        $   35,896    $   39,247
                                       ============  ============



NOTE 4 - Comprehensive Income

Total comprehensive income for the quarters ended June 30, 2003 and 2002 is $8.3
million and $7.4 million,  respectively, and included other comprehensive income
of $880,000  in 2003 and other  comprehensive  loss of $10,000 in 2002.  For the
first six months of 2003 and 2002,  comprehensive  income is $14.9  million  and
$12.3 million, respectively, and included other comprehensive income of $740,000
in 2003 and other comprehensive loss of $2.4 million in 2002.

NOTE 5 - Stock-Based Compensation Plans

The Company has two active stock-based compensation plans and one inactive plan.
The two  active  stock-based  compensation  plans are the 1994  Incentive  Stock
Option Plan and the  Employee  Stock  Purchase  Plan.  The  Company  follows the
disclosure-only   provisions  of  SFAS  No.  123,   Accounting  for  Stock-Based
Compensation,   as  amended  by  SFAS  No.  148,   Accounting  for   Stock-Based
Compensation  -  Transition  and  Disclosure.  As allowed by SFAS No.  123,  the
Company continues to apply the provisions of Accounting Principles Board Opinion
No. 25, Accounting for Stock issued to Employees, and related interpretations in
accounting for its plans.  Accordingly,  compensation  cost for stock options is
measured as the  excess,  if any, of the quoted  market  price of the  Company's
stock at the date of the grant over the amount an  employee  must pay to acquire
the stock. No compensation  cost has been recognized in the Company's  financial
statements   for  the  stock  option  plan  and  the  stock  purchase  plan.  If
compensation cost for the Company's two active  stock-based  compensation  plans
were determined based on the fair value at the grant date for awards under those
plans consistent with the method  established by SFAS No. 123, the Company's net
income and earnings per share would  approximate the pro-forma amounts below (in
thousands, except per share data):



                                       Three Months Ended       Six Months Ended
                                            June 30,                June 30,
                                      ---------------------   ----------------------
                                           (unaudited)             (unaudited)
                                         2003        2002        2003        2002
                                      ----------  ----------  ----------  ----------
                                                              
Net income, as reported.............  $   7,404   $   7,388   $  14,167   $  14,756
Stock-based compensation included
in reported net income, net of
related tax effects.................         --          --          --          --
Total stock-based compensation
expense determined under fair value
method for all awards, net of
related tax effects.................     (2,082)     (2,194)     (4,239)     (4,451)
                                      ----------  ----------  ----------  ----------
Pro-forma net income................  $   5,322   $   5,194   $   9,928   $  10,305
                                      ----------  ----------  ----------  ----------
Earnings per share:
Basic - as reported.................  $    0.14   $    0.14   $    0.28   $    0.29
Basic - pro-forma...................  $    0.10   $    0.10   $    0.19   $    0.20
Diluted - as reported...............  $    0.14   $    0.14   $    0.27   $    0.27
Diluted - pro-forma.................  $    0.10   $    0.10   $    0.19   $    0.19


NOTE 6 - Warranty Reserve

The Company offers a one-year limited  warranty on most hardware  products and a
90-day  warranty on software  products,  which is included in the sales price of
many of its products.  Provision is made for estimated  future warranty costs at
the time of sale.

The warranty reserve was as follows (in thousands):

                                                Six Months Ended     Year Ended
                                                 June 30, 2003      December 31,
                                                  (unaudited)           2002
                                                ----------------    ------------
Balance at the beginning of the period.......     $     715          $      865
Accruals for warranties issued during the
period.......................................           518                 988
Settlements made (in cash or in kind) during
the period...................................          (518)             (1,138)
                                                ----------------    ------------
Balance at the end of the period.............     $     715          $      715
                                                ================    ============



NOTE 7 - 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.  Substantially all of the Company's goodwill is recorded in Europe. 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       Six Months Ended
                                        June 30,                June 30,
                                  ---------------------   ----------------------
                                       (unaudited)             (unaudited)
                                     2003        2002        2003        2002
                                  ----------  ----------  ----------  ----------
Net sales:
Americas:
  Unaffiliated customer sales.... $  49,562   $  49,540   $  96,220   $  97,188
  Geographic transfers...........    13,239      14,062      27,130      27,242
                                  ----------  ----------  ----------  ----------
                                     62,801      63,602     123,350     124,430
                                  ----------  ----------  ----------  ----------
Europe:
  Unaffiliated customer sales....    31,175      29,231      62,453      58,151
  Geographic transfers...........    11,814      14,556      23,017      22,069
                                  ----------  ----------  ----------  ----------
                                     42,989      43,787      85,470      80,220
                                  ----------  ----------  ----------  ----------
Asia Pacific:
  Unaffiliated customer sales....    19,428      14,734      40,665      32,905
                                  ----------  ----------  ----------  ----------
Eliminations.....................   (25,053)    (28,618)    (50,147)    (49,311)
                                  ----------  ----------  ----------  ----------
                                  $ 100,165   $  93,505   $ 199,338   $ 188,244
                                  ==========  ==========  ==========  ==========

                                   Three Months Ended       Six Months Ended
                                        June 30,                June 30,
                                  ---------------------   ----------------------
                                       (unaudited)             (unaudited)
                                     2003        2002        2003        2002
                                  ----------  ----------  ----------  ----------
Operating income:
Americas......................... $   9,337   $   9,529   $  15,236   $  18,153
Europe...........................     9,399       8,595      17,609      16,813
Asia Pacific.....................     6,954       6,370      16,421      15,715
Unallocated:
Research and development
expenses.........................   (16,876)    (15,734)    (32,127)    (31,667)
                                  ----------  ----------  ----------  ----------
                                  $   8,814   $   8,760   $  17,139   $  19,014
                                  ==========  ==========  ==========  ==========

                                    June 30,     December 31,
                                      2003          2002
                                  (unaudited)
                                  ------------   ------------
Identifiable assets:
Americas......................... $   400,684    $   373,066
Europe...........................      48,181         63,600
Asia Pacific.....................      24,899         22,048
                                  ------------   ------------
                                  $   473,764    $   458,714
                                  ============   ============

Total sales  outside the United States for the quarter and six months ended June
30,  2003 were $55.3  million  and  $112.1  million,  respectively,  and for the
quarter and six months ended June 30, 2002 were $48.6 million and $99.8 million,
respectively.

NOTE 8 - Recently Issued Accounting Pronouncement

In  April  2003,  the  Financial  Accounting  Standards  Board  ("FASB")  issued
Statement  of Financial  Accounting  Standards  ("SFAS")  No. 149,  Amendment of
Statement No. 133 on Derivative Instruments and Hedging Activities. SFAS No. 149
amends and clarifies  accounting for derivative  instruments,  including certain
derivative  instruments embedded in other contracts,  and for hedging activities
under SFAS No. 133. The amendments  set forth in SFAS No. 149 improve  financial
reporting  by  requiring  that  contracts  with  comparable  characteristics  be
accounted  for  similarly.  SFAS No. 149 is generally  effective  for  contracts
entered  into or  modified  after June 30,  2003 and for  hedging  relationships
designated  after June 30, 2003.  The  guidance is to be applied  prospectively.
SFAS  No.  149 is not  expected  to  have a  material  effect  on the  Company's
financial position or results of operations.



NOTE 9 - Litigation

The  Company  is  currently  involved  in  two  legal  proceedings  against  The
MathWorks,  Inc.  ("Defendant") for patent  infringement.  The Company filed the
first action on January 25, 2001 in the U.S. District Court, Eastern District of
Texas (Marshall  Division) claiming that the Defendant  infringes certain of the
Company's U.S. patents.  The Defendant  challenged the validity of these patents
and asserted that it does not infringe the claims of these patents.

The trial of the first case  concluded  and on January 30, 2003,  the jury found
infringement  by the Defendant of three of the patents  involved and awarded the
Company specified  damages.  On June 23, 2003, the Court entered final judgement
in favor of the Company in an amount of  approximately $4 million and entered an
injunction  against  Defendant's sale of its Simulink and related products.  The
Court  stayed  the  injunction  pending  appeal  of the  case and  required  the
Defendant to pay a specified  royalty on its U.S.  sales of Simulink and related
products  during the pendency of appeal.  On July 22, 2003,  Defendant filed its
Notice of Appeal and the case is  currently  pending  on appeal  before the U.S.
Court of  Appeals  for the  Federal  Circuit.  The final  judgment  has not been
recorded in the financial  statements of the Company  pending the disposition of
the appeal.

In the second complaint, filed October 21, 2002 also in the U.S. District Court,
Eastern  District of Texas  (Marshall  Division),  the  Company  claims that the
Defendant  infringes certain other of the Company's U.S. patents.  The Defendant
challenges the validity and  enforceability of these patents and asserts that it
does not infringe the claims of these  patents.  In this case, the Company seeks
monetary damages and injunction of the sale of certain products of the Defendant
as well as attorney's fees and costs.

NOTE 10 - Subsequent Event

The  Company's  Board of Directors  approved on July 23, 2003, a quarterly  cash
dividend of $0.05 per common share,  payable August 29, 2003 to  shareholders of
record August 4, 2003.



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
"believes,"  "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
Factors  Affecting  the Company's  Business and Prospects  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 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       Six Months Ended
                                         June 30,                June 30,
                                  ----------------------  ----------------------
                                     2003        2002        2003        2002
                                  ----------  ----------  ----------  ----------
Net sales:
   Americas                           49.5%       53.0%       48.3%       51.6%
   Europe                             31.1        31.4        31.3        31.0
   Asia Pacific                       19.4        15.6        20.4        17.4
                                  ----------  ----------  ----------  ----------
   Consolidated net sales            100.0       100.0       100.0       100.0
Cost of sales                         27.1        28.5        26.7        27.6
                                  ----------  ----------  ----------  ----------
   Gross profit                       72.9        71.5        73.3        72.4
                                  ----------  ----------  ----------  ----------
Operating expenses:
   Sales and marketing                38.1        35.9        38.5        36.7
   Research and development           16.8        16.8        16.1        16.8
   General and administrative          9.2         9.4        10.1         8.8
                                  ----------  ----------  ----------  ----------
   Total operating expenses           64.1        62.1        64.7        62.3
                                  ----------  ----------  ----------  ----------
      Operating income                 8.8         9.4         8.6        10.1
Other income (expense):
   Interest income, net                0.6         0.9         0.7         0.9
   Net foreign exchange gain
   (loss)                              0.3         0.2         0.2        (0.4)
   Other income, net                   0.1         0.5        --           0.3
                                  ----------  ----------  ----------  ----------
Income before income taxes             9.8        11.0         9.5        10.9
Provision for income taxes             2.4         3.1         2.4         3.1
                                  ----------  ----------  ----------  ----------
   Net income                          7.4%        7.9%        7.1%        7.8%
                                  ==========  ==========  ==========  ==========

     Net Sales.  Consolidated  net sales increased by $6.7 million or 7% for the
three  months ended June 30, 2003 to $100.2  million from $93.5  million for the
three months ended June 30, 2002,  and  increased  $11.1 million or 6% to $199.3
million  for the six months  ended June 30,  2003 from  $188.2  million  for the
comparable period in the prior year. The increase in sales for the three and six
months ended June 30, 2003 was primarily attributable to the introduction of new
and upgraded  products  and an  increased  market  acceptance  of the  Company's
products in Asia.  Sales in the Americas in the second quarter of 2003 were flat
with sales from the second quarter of 2002 and sales in the Americas for the six
months ended June 30, 2003 decreased 1% from the six months ended June 30, 2002.

     Sales outside of North America,  as a percentage of consolidated  sales for
the  quarter  ended  June 30,  2003,  increased  to 50.5%  from  47.0%  over the
comparable  2002  period as a result of  stronger  sales in Asia.  International
sales as a percentage  of  consolidated  sales for the six months ended June 30,
2003  increased  to 51.7%  from  48.4% over the  comparable  2002  period due to
stronger  sales in Asia.  Compared  to the  corresponding  periods in 2002,  the
Company's  European sales increased by 6% to $31.2 million for the quarter ended
June 30, 2003 and  increased  7% to $62.5  million for the six months ended June
30, 2003. Sales in Asia Pacific increased by 33% to $19.4 million in the quarter
ended June 30, 2003  compared to the same  period in 2002 and  increased  24% to
$40.7 million for the six months ended June 30, 2003 compared to the same period
in 2002.  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 foreign  currency  exchange  rates.
Between  the  second  quarter of 2002 and the  second  quarter  of 2003,  net of
hedging  results,  the change in exchange rates had the effect of increasing the
Company's  consolidated  sales  by 4%;  increasing  European  sales  by 14%  and
decreasing  sales in Asia Pacific by 9%. For 2003,  year-to-date  sales,  net of
hedging  results,  the change in exchange rates had the effect of increasing the
Company's  consolidated  sales by 2%. 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 $1.8 million for the six
months ended June 30, 2003 and $1.4 million for the quarter ended June 30, 2003.

     Gross Profit.  As a percentage of sales,  gross profit increased to 73% for
the second quarter of 2003 from 72% for the second quarter of 2002 and increased
to 73% for the first six  months  of 2003 from 72% for the  comparable  period a
year ago.  Approximately  80% of the higher margin in the second quarter of 2003
is attributable to favorable  foreign exchange rates. The remaining  fraction of
the higher margin is  attributable  to the impact of fixed  charges  relative to
higher sales  volume.  There can be no assurance  that the Company will maintain
its historical margins. The Company believes its current manufacturing  capacity
is adequate to meet current needs.

     Sales and Marketing. Sales and marketing expenses for the second quarter of
2003  increased  to $38.1  million,  a 14%  increase,  as compared to the second
quarter of 2002 and  increased  11% to $76.7 million for the first six months of
2003 from the comparable  2002 period.  As a percentage of net sales,  sales and
marketing expenses were 38.1% and 35.9% for the three months ended June 30, 2003
and 2002,  respectively,  and 38.5% and 36.7% for the six months  ended June 30,
2003 and  2002,  respectively.  The  increase  in these  expenses  is  primarily
attributable to the increase in personnel costs and the increases in advertising
and literature  costs 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
$16.9  million for the quarter ended June 30, 2003, a 7% increase as compared to
$15.7  million for the three  months ended June 30,  2002,  and  increased 1% to
$32.1  million for the six months ended June 30, 2003 from the  comparable  2002
period. As a percentage of net sales, research and development expenses remained
flat at 16.8% for the quarter  ended June 30,  2003,  compared  with the quarter
ended June 30,  2002,  and  decreased to 16.1% for the six months ended June 30,
2003,  from 16.8% for the comparable  2002 period.  The decrease in research and
development  costs as a percentage of sales in the  six-month  period ended June
30,  2003  versus  the prior year  period  was  primarily  due to  increases  in
capitalized  software  development  costs and was  mitigated by the increases in
personnel  costs from the hiring of additional  product  development  engineers.
Research and development personnel increased from 765 at June 30, 2002 to 860 at
June 30, 2003. The Company plans to continue making a significant  investment in
research and  development  in order to remain  competitive  and support  revenue
growth. The Company expects that research and development expenses will increase
in the quarter ending September 30, 2003 to approximately $18.5 million.

     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 $1.2  million and $1.1 million for the quarters  ended June 30, 2003 and
2002,  respectively,  and $2.2  million and $1.9  million  during the six months
ended  June  30,  2003  and  2002,  respectively.   Software  development  costs
capitalized  were $3.9 million and $1.2 million for the quarters  ended June 30,
2003 and 2002, respectively, and $8.4 million and $1.6 million for the first six
months of 2003 and 2002,  respectively.  The Company expects that capitalization
of software  development costs will significantly  decrease in the remaining six
months of 2003.  The amounts  capitalized  in the six months ended June 30, 2003
are mainly related to the  development  of new and upgraded  products which were
completed and released in the second quarter of 2003.



     General and  Administrative.  General and  administrative  expenses for the
second  quarter  ended June 30,  2003  increased  4% to $9.2  million  from $8.8
million for the comparable prior year period.  For the first six months of 2003,
general and  administrative  expenses  increased 22% to $20.2 million from $16.6
million for the first six months of 2002. As a percentage of net sales,  general
and  administrative  expenses  decreased to 9.2% for the quarter  ended June 30,
2003 from 9.4% for the second  quarter  of 2002.  During the first six months of
2003, general and administrative  expenses increased as a percentage of sales to
10.1% from 8.8% for the  comparable  prior year period.  The increase in general
and  administrative  expenses in absolute terms and as a percentage of sales for
the six months  ended June 30,  2003 from the  comparable  prior year period was
primarily  attributable  to increased  litigation  costs of  approximately  $1.6
million  associated  with a legal  action by the  Company  brought  against  The
MathWorks,  Inc. to enforce the Company's intellectual  property.  (See Note 9 -
Litigation.)  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 second  quarter of 2003
decreased to $620,000 from $839,000 in the second quarter of 2002, and decreased
to $1.3  million  for the first six  months  of 2003 from $1.6  million  for the
comparable 2002 period. The decreases in interest income for the quarter and six
months  ended  June  30,  2003  were  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  gains of $340,000 in the second  quarter of 2003  compared to gains of
$217,000 in the second quarter of 2002.  Net foreign  exchange gains of $325,000
were  recognized  for the  first  six  months  of 2003  compared  to  losses  of
($677,000) for the first six months of 2002.  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,  yen and pound  sterling) and limits the duration of these
contracts to 40 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 $3.6
million  during the quarter ended June 30, 2003, and by $5.3 million for the six
months ended June 30, 2003.

     Provision  for Income Taxes.  The  provision  for income taxes  reflects an
effective  tax rate of 25% for the three and six months  ended June 30, 2003 and
28% for the three and six  months  ended  June 30,  2002.  The  decrease  in the
effective   rate  resulted  from  income  tax  benefits   attributable   to  the
extraterritorial  income  exclusion and a change in the  distribution  of income
among  taxing  jurisdictions,  particularly  the  impact  of the  Company's  new
manufacturing  facility in Hungary.  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 June 30,  2003,  the Company had working
capital of  approximately  $225.0 million compared to $211.5 million at December
31, 2002.  Net cash  provided by operating  activities  for the six months ended
June 30, 2003 totaled $27.0 million.

     Accounts receivable  decreased to $61.8 million at June 30, 2003 from $63.0
million at December 31, 2002. Days sales outstanding decreased to 56 at June 30,
2003 compared to 58 at June 30, 2002.  Consolidated inventory balances decreased
to $35.9  million at June 30,  2003 from $39.2  million at  December  31,  2002.
Inventory  turns decreased to 3.0 for the quarter ended June 30, 2003 from turns
of 3.3 for the  quarter  ended  December  31,  2002.  Cash used in the first six
months of 2003 for the purchase of property and equipment  totaled $7.8 million,
for the  capitalization  of  internally  developed  software  costs totaled $8.4
million, and additions to other intangibles totaled $4.3 million.



     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 June 30, 2003, the Company had no debt  outstanding.  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.  These dynamics
have  adversely  affected  revenue growth in  international  markets in previous
years.  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  inventories  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. At June 30, 2003,  the
Company  did not have any  relationships  with any  unconsolidated  entities  or
financial partnerships, such as entities often referred to as structured finance
entities,  which would have been  established  for the  purpose of  facilitating
off-balance  sheet  arrangements.  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 June 30,  2003,  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  $14.7 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 June 30, 2003 was $140.0  million.  Investments  with
maturities  beyond one year are  classified as short-term  based on their highly
liquid nature and because such marketable securities represent the investment of
cash that is available for current operations.  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 June 30,  2003, a 100 basis point
increase or decrease in interest rates would result in a decrease or increase of
approximately  $700,000,  respectively,  in the  fair  value  of the  investment
portfolio.  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.

Recently Issued Accounting Pronouncement

     In April 2003, the Financial  Accounting  Standards  Board ("FASB")  issued
Statement  of Financial  Accounting  Standards  ("SFAS")  No. 149,  Amendment of
Statement No. 133 on Derivative Instruments and Hedging Activities. SFAS No. 149
amends and clarifies  accounting for derivative  instruments,  including certain
derivative  instruments embedded in other contracts,  and for hedging activities
under SFAS No. 133. The amendments  set forth in SFAS No. 149 improve  financial
reporting  by  requiring  that  contracts  with  comparable  characteristics  be
accounted  for  similarly.  SFAS No. 149 is generally  effective  for  contracts
entered  into or  modified  after June 30,  2003 and for  hedging  relationships
designated  after June 30, 2003.  The  guidance is to be applied  prospectively.
SFAS  No.  149 is not  expected  to  have a  material  effect  on the  Company's
financial position or results of operations.

Factors Affecting the Company's Business and Prospects

     U.S./Global Economic Slowdown. As occurred in 2001 and 2002, 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.  Additionally,  the Company could
be  impacted  by the  effects  of  the  SARS  virus,  either  through  increased
difficulty or costs of the export of products into affected regions,  the import
of components used in our products from affected regions, and/or the effects the
virus or costs to contain  the virus have on the economy in regions in which the
Company does  business,  particularly  Asia,  which has been the highest  growth
region of the  Company  over the past two years.  The  worsening  of 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 2003.  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 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 and/or additional
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 reduce  expenditures in response to any decrease
in 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  used in our
products, 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.
If the U.S. dollar  strengthens in the future,  it could have a material adverse
effect on gross and net profit margins.



     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 2003 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 adverse 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.  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.

     During the quarter ended  September 30, 2003, the Company will be upgrading
its Americas business  applications  suite to Oracle's latest web-based release,
11i. There can be no assurance that the Company will not experience difficulties
implementing the new system.  Difficulties or delays in the  implementation  may
interrupt normal Company  operations,  including the ability to: provide quotes,
process orders,  ship products,  provide  services and support to our customers,
bill and track our customers,  fulfill contractual obligations and otherwise run
our business.  Any disruptions occurring in the implementation of the system may
have a material adverse effect on the Company's operating results.

     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 import and export regulations. Failure
to ensure  compliance  with  these  regulations  could  result  in fines  and/or
termination of import and export privileges, 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  foreign  currency  exchange  rates.
Between  the  second  quarter of 2003 and the  second  quarter  of 2002,  net of
hedging  results,  the change in exchange rates had the effect of increasing the
Company's  consolidated  sales by 4% as compared to the second  quarter of 2002.
Since most of the Company's  international  operating expenses are also incurred
in local currencies,  the change in exchanges rates had the effect of increasing
operating  expenses  by $1.4  million  for the  quarter  ended June 30,  2003 as
compared to the comparable prior year period. If the U.S. dollar  strengthens in
the future,  it 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.  This  facility
sources 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 operating results.

     Income Tax Rate.  The  Company  established  a  manufacturing  facility  in
Hungary in 2001. As a result of certain foreign investment  incentives available
under  Hungarian  law,  the profit from the  Company's  Hungarian  operation  is
currently  exempt from income tax.  These  benefits  may not be available in the
future due to changes in  Hungary's  political  condition  and/or tax laws.  The
reduction or elimination of these foreign investment  incentives would result in
the reduction or  elimination  of certain tax benefits  thereby  increasing  the
Company's  future effective income tax rate, which could have a material adverse
effect on the Company's operating results.



     The  Company   receives  a   substantial   income  tax  benefit   from  the
extraterritorial  income exemption ("ETI") under U.S. law. The ETI rules provide
that a percentage of the profits from products and intangibles exported from the
U.S. are exempt from U.S.  tax.  This benefit may not be available in the future
as ETI has been ruled an illegal export subsidy by the World Trade Organization.
The  repeal  of the ETI  would  result in the  elimination  of this tax  benefit
thereby  increasing the Company's  future effective income tax rate, which could
have a material adverse effect on the Company's operating results.

     Products Dependent on Certain  Industries.  Sales of 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 the past, 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 the
Company's revenues and operating results.

     Stock-based  Compensation  Plans.  The Company  has two active  stock-based
compensation   plans  and  one  inactive  plan.   The  two  active   stock-based
compensation  plans are the 1994  Incentive  Stock  Option Plan and the Employee
Stock  Purchase  Plan.  The Company  currently  adheres to the  disclosure  only
provisions  of SFAS  No.  123,  as  amended  by SFAS  No.  148,  Accounting  for
Stock-Based   Compensation  -  Transition  and  Disclosure,   and  as  such,  no
compensation cost has been recognized in the Company's financial  statements for
the stock  option plan and the stock  purchase  plan.  The Company is  currently
monitoring the recent discussions related to possible new regulations  regarding
the  accounting  treatment for stock  options.  The Company will comply with any
changes in the  accounting  of stock  options  required by the FASB. If the fair
value based method of accounting  for stock options  established  under SFAS No.
123 were adopted  effective January 1, 2003, the Company estimates it would have
recognized  stock  option  expense  for  the  options  granted  during  2003  of
approximately  $190,000 and $201,000 for the quarter and six month periods ended
June 30, 2003. If the Company were to adopt the accounting provision of SFAS No.
123, the adoption would be  prospective.  Accordingly,  the Company would expect
stock option  expense to increase in the future if additional  stock options are
issued.

     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  may from time to time,  engage in
litigation  to protect its  intellectual  property  rights.  In  monitoring  and
policing its intellectual  property rights, the Company may be required to spend
significant  resources.  Over the next six months,  the Company expects to incur
litigation  expenses of  approximately  $2.6 million  related to current  patent
litigation.  Due  to the  inherent  uncertainties  of  litigation  there  may be
significant  changes  in the  amount  and  timing  of these  expected  expenses.
Additionally,  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  operating
results.



     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,  the Company's  Chairman and Chief Executive
Officer, 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  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,  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  at the current  rate.  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 operating results.

     Risk of Product  Liability Claims.  The Company's  products are designed 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.

Item 4. Controls and Procedures

     The Company's Chief Executive Officer and Chief Financial Officer, based on
the evaluation of the Company's  disclosure  controls and procedures (as defined
in Rules  13a-15(e)  and  15d-15(e) of the  Securities  Exchange Act of 1934, as
amended) required by paragraph (b) of Rule 13a-15 or Rule 15d-15, as of June 30,
2003, have concluded that the Company's  disclosure controls and procedures were
effective  to  ensure  the  timely  collection,  evaluation  and  disclosure  of
information  relating  to the  Company  that  would  potentially  be  subject to
disclosure under the Securities Exchange Act of 1934, as amended,  and the rules
and regulations promulgated  thereunder.  During the three months ended June 30,
2003,  there were no changes in the Company's  internal  control over  financial
reporting identified in connection with the evaluation required by paragraph (d)
of the Rule 13a-15 or Rule 15d-15 that has materially affected, or is reasonably
likely to materially affect, the internal control over financial reporting.



                           PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

     The  Company is  currently  involved in two legal  proceedings  against The
MathWorks,  Inc.  ("Defendant") for patent  infringement.  The Company filed the
first action on January 25, 2001 in the U.S. District Court, Eastern District of
Texas (Marshall  Division) claiming that the Defendant  infringes certain of the
Company's U.S. patents.  The Defendant  challenged the validity of these patents
and asserted that it does not infringe the claims of these patents.

     The trial of the first case  concluded  and on January 30,  2003,  the jury
found infringement by the Defendant of three of the patents involved and awarded
the  Company  specified  damages.  On June 23,  2003,  the Court  entered  final
judgement in favor of the Company in an amount of  approximately  $4 million and
entered an  injunction  against  Defendant's  sale of its  Simulink  and related
products.  The  Court  stayed  the  injunction  pending  appeal  of the case and
required the Defendant to pay a specified  royalty on its U.S. sales of Simulink
and related products during the pendency of appeal. On July 22, 2003,  Defendant
filed its Notice of Appeal and the case is  currently  pending on appeal  before
the U.S.  Court of Appeals for the Federal  Circuit.  The final judgment has not
been recorded in the financial statements of the Company pending the disposition
of the appeal.

     In the second  complaint,  filed October 21, 2002 also in the U.S. District
Court,  Eastern District of Texas (Marshall  Division),  the Company claims that
the  Defendant  infringes  certain  other of the  Company's  U.S.  patents.  The
Defendant  challenges  the  validity  and  enforceability  of these  patents and
asserts that it does not infringe the claims of these patents. In this case, the
Company seeks monetary damages and injunction of the sale of certain products of
the Defendant as well as attorney's fees and costs.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

(a) The annual meeting of stockholders was held on May 13, 2003.

(b) The following directors were elected at the meeting to serve a term of three
years:

                  Ben G. Streetman
                  R. Gary Daniels
                  Duy-Loan T. Le

        The following directors are continuing to serve their terms:

                  Donald M. Carlton
                  Jeffrey L. Kodosky
                  James J. Truchard
                  Charles J. Roesslein

(c) The matters voted upon at the meeting and results of the voting with respect
to those matters were as follows:

                                             For               Abstain
(1) Election of directors:
                  Ben G. Streetman        48,245,742           410,345
                  R. Gary Daniels         48,247,977           408,110
                  Duy-Loan T. Le          48,511,105           144,982

     The foregoing  matters are described in detail in the Company's  definitive
proxy statement dated April 4, 2003.



ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

a) Exhibits.

      3.1* Certificate of Incorporation of the Company.

      3.2* Bylaws of the Company.

      4.1* Specimen of Common Stock certificate of the Company.

      4.2* Rights Agreement dated as of May 19, 1994, between the Company and
           The First National Bank of Boston.

     10.1* Form of Indemnification Agreement.

     10.2* 1994 Incentive Plan.

     10.3* 1994 Employee Stock Purchase Plan.

     10.4* Agreement regarding Terms of Employment incorporated by reference
           from Exhibit 10.4 of the Company's 10-K filed January 28, 2003.**

     11.1  Computation of Earnings Per Share.

     99.1  Certification of Chief Executive Officer Pursuant to 18 U.S.C.
           Section 1350, as Adopted Pursuant to Section 302 of the
           Sarbanes-Oxley Act of 2002.

     99.2  Certification of Chief Financial Officer Pursuant to 18 U.S.C.
           Section 1350, as Adopted Pursuant to Section 302 of the
           Sarbanes-Oxley Act of 2002.

     99.3  Certification of Chief Executive Officer and Chief Financial Officer
           Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section
           906 of the Sarbanes-Oxley Act of 2002.

     *     Incorporated by reference to the Company's Registration  Statement on
           Form S-1 (Reg. No. 33-88386) declared effective March 13, 1995.

     **    Management Contract or Compensatory Plan or Arrangement.

b) Reports on Form 8-K.

     On April 1, 2003,  the Company  filed Form 8-K  reporting  on the same date
     under Item 7 "Financial  Statements and Exhibits" and Item 9 "Regulation FD
     Disclosure" the Company's press release.

     On April 17, 2003,  the Company  filed Form 8-K  reporting on the same date
     under Item 7 "Financial  Statements and Exhibits" and Item 9 "Regulation FD
     Disclosure" the Company's press release.



                                    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:  July 25, 2003



                        NATIONAL INSTRUMENTS CORPORATION

                                INDEX TO EXHIBITS



      Exhibit No.                   Description                     Page
      -----------                   -----------                     ----
          11.1           Statement Regarding Computation             23
                         of Earnings per Share

          99.1           Certification of Chief Executive            24
                         Officer Pursuant to 18 U.S.C.
                         Section 1350, as Adopted Pursuant
                         to Section 302 of the
                         Sarbanes-Oxley Act of 2002

          99.2           Certification of Chief Financial            25
                         Officer Pursuant to 18 U.S.C.
                         Section 1350, as Adopted Pursuant
                         to Section 302 of the
                         Sarbanes-Oxley Act of 2002

          99.3           Certification of Chief Executive            26
                         Officer and Chief Financial Officer
                         Pursuant to 18 U.S.C. Section 1350,
                         as Adopted Pursuant to Section 906
                         of the Sarbanes-Oxley Act of 2002