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:  March 31, 2004 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  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined by Rule 126-2 of the 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 April 28, 2004
     Common Stock - $0.01 par value                       78,841,554



                        NATIONAL INSTRUMENTS CORPORATION


              INDEX

                                                                        Page No.

              PART I.  FINANCIAL INFORMATION

Item 1        Financial Statements:

                 Consolidated Balance Sheets
                 March 31, 2004 (unaudited) and December 31, 2003..............3

                 Consolidated Statements of Income (unaudited)
                 three months ended March 31, 2004 and 2003....................4

                 Consolidated Statements of Cash Flows (unaudited)
                 three months ended March 31, 2004 and 2003....................5

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

Item 2        Management's Discussion and Analysis of Financial
              Condition and Results of Operations.............................11

Item 3        Quantitative and Qualitative Disclosures about Market Risk......19

Item 4        Controls and Procedures.........................................19

              PART II.  OTHER INFORMATION

Item 1        Legal Proceedings...............................................20

Item 5        Other Information...............................................20

Item 6        Exhibits and Reports on Form 8-K................................21

              Signatures and Certifications...................................22



                         PART I - FINANCIAL INFORMATION

ITEM 1. Financial Statements

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


                                                        March 31,   December 31,
                                                          2004          2003
                                                       ----------   ------------
Assets
Current assets:
   Cash and cash equivalents........................   $  45,564    $    53,446
   Short-term investments...........................     153,218        141,227
   Accounts receivable, net.........................      81,628         77,970
   Inventories, net.................................      51,506         38,813
   Prepaid expenses and other current assets........      12,325          9,742
   Deferred income tax, net.........................      10,736          9,927
                                                       ----------   ------------
     Total current assets...........................     354,977        331,125
Property and equipment, net.........................     150,768        151,612
Intangibles and other assets, net...................      43,065         42,414
                                                       ----------   ------------
     Total assets...................................   $ 548,810    $   525,151
                                                       ==========   ============
Liabilities and Stockholders' Equity
Current liabilities:
   Accounts payable.................................   $  35,602    $    29,567
   Accrued compensation.............................      15,977         12,302
   Accrued expenses and other liabilities...........      22,450         24,419
   Income taxes payable.............................         460             --
   Other taxes payable..............................       8,575          9,507
                                                       ----------   ------------
     Total current liabilities......................      83,064         75,795
Deferred income taxes, net..........................      10,310          9,904
                                                       ----------   ------------
     Total liabilities..............................      93,374         85,699
                                                       ----------   ------------
Commitments and contingencies.......................          --             --
Stockholders' equity:
   Preferred stock:  par value $0.01; 5,000,000
   shares authorized; 0 and 0 shares issued and
   outstanding, respectively........................          --             --
   Common stock:  par value $.01; 180,000,000
   shares authorized; 78,604,216 and 78,269,235
   shares issued and outstanding, respectively......         786            783
   Additional paid-in capital.......................      99,472         95,070
   Retained earnings................................     360,206        349,994
   Accumulated other comprehensive loss.............      (5,028)        (6,395)
                                                       ----------   ------------
     Total stockholders' equity.....................     455,436        439,452
                                                       ----------   ------------
     Total liabilities and stockholders' equity.....   $ 548,810    $   525,151
                                                       ==========   ============

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





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


                                                            Three Months Ended
                                                                 March 31,
                                                          ----------------------
                                                             2004        2003
                                                          ----------  ----------
Net sales..............................................   $ 124,638   $  99,173
Cost of sales..........................................      31,570      26,013
                                                          ----------  ----------
   Gross profit........................................      93,068      73,160
                                                          ----------  ----------
Operating expenses:
   Sales and marketing.................................      46,697      38,545
   Research and development............................      19,990      15,251
   General and administrative..........................      10,036      11,040
                                                          ----------  ----------
      Total operating expenses.........................      76,723      64,836
                                                          ----------  ----------

      Operating income.................................      16,345       8,324

Other income (expense):
   Interest income, net................................         712         686
   Net foreign exchange loss...........................          (2)        (14)
   Other income........................................          48          21
                                                          ----------  ----------
Income before income taxes.............................      17,103       9,017
Provision for income taxes.............................       4,276       2,254
                                                          ----------  ----------
      Net income.......................................   $  12,827   $   6,763
                                                          ==========  ==========
Basic earnings per share...............................   $    0.16   $    0.09
                                                          ==========  ==========
Weighted average shares outstanding - basic............      77,964      76,734
                                                          ==========  ==========
Diluted earnings per share.............................   $    0.16   $    0.08
                                                          ==========  ==========
Weighted average shares outstanding - diluted..........      81,905      79,910
                                                          ==========  ==========
Dividends declared per share...........................   $    0.03   $      --
                                                          ==========  ==========

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






                        NATIONAL INSTRUMENTS CORPORATION
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)
                                   (unaudited)
                                                            Three Months Ended
                                                                 March 31,
                                                          ----------------------
                                                             2004        2003
                                                          ----------  ----------
Cash flow from operating activities:
   Net income...........................................  $  12,827   $   6,763
   Adjustments to reconcile net income to cash provided
   by operating activities:
      Charges to income not requiring cash outlays:
        Depreciation and amortization...................      5,915       6,097
        Benefit from deferred income taxes..............       (403)       (582)
        Tax benefit from stock option plans.............      1,244         752
      Changes in operating assets and liabilities:
        Decrease (increase) in accounts receivable......     (3,658)        752
        Decrease (increase) in inventories..............    (12,693)      1,677
        Decrease (increase) in prepaid expenses and
        other assets....................................     (1,478)      2,336
        Increase (decrease) in current liabilities......      7,269      (4,317)
                                                          ----------  ----------
      Net cash provided by operating activities.........      9,023      13,478
                                                          ----------  ----------

Cash flow from investing activities:
   Capital expenditures.................................     (3,030)     (3,113)
   Capitalization of internally developed software......     (2,039)     (4,581)
   Additions to other intangibles.......................       (391)     (3,516)
   Purchases of short-term investments..................    (48,636)    (37,272)
   Sales and maturities of short-term investments.......     36,645      29,875
                                                          ----------  ----------
      Net cash used in investing activities.............    (17,451)    (18,607)
                                                          ----------  ----------

Cash flow from financing activities:
   Net proceeds from issuance of common stock under
   employee plans.......................................      3,161       1,743
   Dividends paid.......................................     (2,615)         --
                                                          ----------  ----------
      Net cash provided by financing activities.........        546       1,743
                                                          ----------  ----------

Net decrease in cash and cash equivalents...............     (7,882)     (3,386)
Cash and cash equivalents at beginning of period........     53,446      40,240
                                                          ----------  ----------
Cash and cash equivalents at end of period..............  $  45,564   $  36,854
                                                          ==========  ==========

   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, 2003,  included in the Company's  annual report on Form
10-K,  filed with the  Securities  and  Exchange  Commission.  In the opinion of
management,  the  accompanying  consolidated  financial  statements  reflect all
adjustments  (consisting only of normal recurring items) considered necessary to
present fairly the financial  position of National  Instruments  Corporation and
its  consolidated  subsidiaries at March 31, 2004 and December 31, 2003, and the
results of operations and cash flows for the three-month periods ended March 31,
2004 and 2003. Operating results for the three-month period ended March 31, 2004
are not necessarily  indicative of the results that may be expected for the year
ending December 31, 2004.


NOTE 2 - Earnings Per Share

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

The  reconciliation  of the denominators used to calculate basic EPS and diluted
EPS for the three-month periods ended March 31, 2004 and 2003, respectively, are
as follows (in thousands):

                                                       March 31,
                                                -----------------------
                                                      (unaudited)
                                                   2004         2003
                                                ----------   ----------
Weighted average shares outstanding-basic.....     77,964       76,734
Plus: Common share equivalents
    Stock options.............................      3,941        3,176
                                                ----------   ----------
Weighted average shares outstanding-diluted...     81,905       79,910
                                                ==========   ==========

Stock  options to acquire  217,000 and 2,306,000  shares for the quarters  ended
March 31, 2004 and 2003,  respectively,  were  excluded in the  computations  of
diluted  EPS  because  the  effect of  including  the  options  would  have been
anti-dilutive.


NOTE 3 - Inventories

Inventories consist of the following (in thousands):

                               March 31,   December 31,
                              -------------------------
                                     (unaudited)
                                 2004          2003
                              -----------  ------------
Raw materials..............   $  24,619    $   17,513
Work-in-process............       2,169         1,625
Finished goods.............      24,718        19,675
                              -----------  ------------
                              $  51,506    $   38,813
                              ===========  ============



NOTE 4 - Comprehensive Income

The Company's  comprehensive income is comprised of net income, foreign currency
translation and unrealized  gains and losses on forward and option contracts and
securities available for sale.  Comprehensive income for the three-month periods
ended March 31, 2004 and 2003 was as follows:

                                                  Three Months Ended
                                                       March 31,
                                                ----------------------
                                                      (unaudited)
                                                   2004        2003
                                                ----------  ----------
                                                     (in thousands)
Comprehensive income:
  Net income.................................   $  12,827   $   6,763
  Foreign currency translation...............        (154)        610
  Unrealized gains (losses) on derivative
   instruments...............................       1,521        (657)
  Unrealized losses on securities
   available for sale........................          --         (92)
                                                ----------  ----------
Total comprehensive income...................   $  14,194   $   6,624
                                                ==========  ==========


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
                                                                 March 31,
                                                          ----------------------
                                                                (unaudited)
                                                             2004        2003
                                                          ----------  ----------
Net income, as reported...............................    $  12,827   $   6,763
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..................................       (2,523)     (2,736)
                                                          ----------  ----------
Pro-forma net income..................................    $  10,304   $   4,027
                                                          ----------  ----------
Earnings per share:
Basic - as reported...................................    $    0.16   $    0.09
Basic - pro-forma.....................................    $    0.13   $    0.05
Diluted - as reported.................................    $    0.16   $    0.08
Diluted - pro-forma...................................    $    0.13   $    0.05



NOTE 6 - Authorized Preferred Stock and Preferred Stock Purchase Rights Plan

National  Instruments  has 5,000,000  authorized  shares of preferred  stock. On
January 21,  2004,  the Board of Directors  of National  Instruments  designated
750,000 of these shares as Series A Participating Preferred Stock in conjunction
with its adoption of a Preferred Stock Rights Agreement (the "Rights Agreement")
and  declaration of a dividend of one preferred share purchase right (a "Right")
for each share of common  stock  outstanding  held as of May 10,  2004 or issued
thereafter. Each Right will entitle its holder to purchase one one-thousandth of
a share of National  Instruments'  Series A Participating  Preferred Stock at an
exercise  price of $200 (after  giving  effect to the 3 for 2 stock split in the
form of a stock  dividend  declared by the Board of  Directors of the Company of
January 21,  2004),  subject to  adjustment,  under certain  circumstances.  The
Rights Agreement was not adopted in response to any effort to acquire control of
National Instruments.

The Rights only become  exercisable in certain limited  circumstances  following
the tenth day after a person or group announces acquisitions of or tender offers
for 20% or more of  National  Instruments'  common  stock.  In  addition,  if an
acquirer  (subject to certain  exclusions for certain  current  stockholders  of
National  Instruments,  an "Acquiring  Person")  obtains 20% or more of National
Instruments'  common stock,  then each Right (other than the Rights owned by and
Acquiring Person or its affiliates) will entitle the holder to purchase, for the
exercise  price,  shares of National  Instruments"  common  stock having a value
equal to two times the exercise price. Under certain circumstances, the National
Instruments'  Board of  Directors  may redeem the Rights,  in whole,  but not in
part,  at a  purchase  price of $0.01  per  Right.  The  Rights  have no  voting
privileges  and  are  attached  to  and   automatically   traded  with  National
Instruments  common stock until the occurrence of specified trigger events.  The
Rights  will  expire  on the  earlier  of May 10,  2014 or the  exchange  or the
redemption of the Rights.


NOTE 7 - Commitments and Contingencies

The Company offers a one or two-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):

                                                            Three Months Ended
                                                                 March 31,
                                                          ----------------------
                                                                (unaudited)
                                                             2004        2003
                                                          ----------  ----------
Balance at the beginning of the period...................  $   715     $   715
Accruals for warranties issued during the period.........      394         247
Settlements made (in cash or in kind) during the period..     (294)       (247)
                                                          ----------  ----------
Balance at the end of the period.........................  $   815     $   715
                                                          ==========  ==========

As of March 31,  2004,  the Company has  outstanding  guarantees  for payment of
foreign leases, customs and foreign grants totaling approximately $3.5 million.

As of March 31, 2004, the Company has non-cancelable  purchase  commitments with
various  suppliers of customized  inventory and  inventory  components  totaling
approximately $4.5 million over the next twelve months.



NOTE 8 - 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
                                                          March 31,
                                                   ----------------------
                                                        (unaudited)
                                                      2004        2003
                                                   ----------  ----------
Net sales:
Americas:
  Unaffiliated customer sales....................  $  57,407   $  46,659
  Geographic transfers...........................     21,213      13,891
                                                   ----------  ----------
                                                      78,620      60,550
                                                   ----------  ----------

Europe:
  Unaffiliated customer sales....................     39,759      31,276
  Geographic transfers...........................     14,115      11,203
                                                   ----------  ----------
                                                      53,874      42,479
                                                   ----------  ----------

Asia Pacific:
  Unaffiliated customer sales....................     27,472      21,238
                                                   ----------  ----------
Eliminations.....................................    (35,328)    (25,094)
                                                   ----------  ----------
                                                   $ 124,638   $  99,173
                                                   ==========  ==========

                                                     Three Months Ended
                                                          March 31,
                                                   ----------------------
                                                        (unaudited)
                                                      2004        2003
                                                   ----------  ----------
Operating income:
Americas.........................................  $  12,715   $   5,897
Europe...........................................     12,462       8,211
Asia Pacific.....................................     11,158       9,467
Unallocated:
Research and development expenses................    (19,990)    (15,251)
                                                   ----------  ----------
                                                   $  16,345   $   8,324
                                                   ==========  ==========

                                                     March 31,    December 31,
                                                       2004          2003
                                                   ---------------------------
                                                           (unaudited)
Identifiable assets:
Americas.........................................  $   442,552    $   420,082
Europe...........................................       74,684         77,963
Asia Pacific.....................................       31,574         27,106
                                                   ------------   ------------
                                                   $   548,810    $   525,151
                                                   ============   ============

Total sales outside the United States for the quarters  ended March 31, 2004 and
2003 were $73.3 million and $56.8 million, respectively.



NOTE 9 - Litigation

The Company has filed two complaints against The MathWorks,  Inc.  ("Defendant")
for patent infringement.  In both complaints,  the Company claimed the Defendant
infringes certain of its U.S. patents and the Defendant  challenged the validity
and  enforceability  of those  patents and asserts that it does not infringe the
claims of those patents.

The first  complaint was filed on January 25, 2001 in the U.S.  District  Court,
Eastern  District of Texas  (Marshall  Division).  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
judgment  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 the same
products during the pendency of appeal.  The initial judgement and the royalties
on the sales of  infringing  products  through March 31, 2004 total $5.8 million
and are escrowed. 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.

The second  complaint  was filed  October 21,  2002,  also in the U.S.  District
Court, Eastern District of Texas (Marshall Division) and on August 27, 2003, the
complaint was dismissed by agreement of the parties.

On January 15, 2003,  SoftWIRE  Technology,  LLC  ("SoftWIRE")  and  Measurement
Computing  Corporation ("MCC") filed a complaint against the Company in the U.S.
District  Court for the  District of  Massachusetts  asking the court to declare
that SoftWIRE does not infringe  certain of the Company's U.S.  patents and that
such patents are invalid and  unenforceable.  On February 21, 2003,  the Company
filed a complaint against SoftWIRE and MCC in the U.S.  District Court,  Eastern
District  of Texas  (Marshall  Division)  claiming  that both  SoftWIRE  and MCC
infringe the same and certain other of the Company's U.S. patents.  SoftWIRE and
MCC challenge the validity and  enforceability  of these patents and assert that
they do not infringe any of these patents.  In the Eastern District action,  the
Company seeks monetary damages and injunction of the sale of certain products of
SoftWIRE and MCC as well as  attorney's  fees and costs.  By order of the Court,
the Eastern  District action was transferred to the U.S.  District Court for the
District of  Massachusetts  on May 9, 2003, and has been  consolidated  with the
previously-filed  SoftWIRE  action,  which also  includes  counterclaims  by the
Company that are the same in substance  as the  Company's  claims in the Eastern
District  action.  On June 12,  2003,  SoftWIRE  moved  for  leave to amend  its
complaint in order to allege that the Company  infringes  two U.S.  patents that
SoftWIRE  acquired by purchase on May 23, 2003.  On November 5, 2003,  the Court
granted SoftWIRE's motion to amend, thereby adding SoftWIRE's two patents to the
litigation.  With respect to those two SoftWIRE patents, SoftWIRE seeks monetary
damages and injunction of the sale of the Company's  LabVIEW software  products,
as well as  attorney's  fees and costs.  The Company  challenges  the  validity,
enforceability  and  alleged  infringement  of  those  patents  and  intends  to
vigorously  defend  against  SoftWIRE's  claims.  Discovery in the litigation is
underway.  During the fourth quarter of 2003,  the Company  accrued $3.8 million
related to its probable loss from this  contingency,  which  consists  solely of
anticipated  patent defense costs that are probable of being incurred.  However,
the  outcome  of any  litigation  is  inherently  uncertain  and there can be no
assurance as to the ultimate outcome of this matter or any other litigation. The
Company  charged  approximately  $447,000  against this accrual during the first
quarter of 2004.


NOTE 10 - Subsequent Event

The Company's  Board of Directors  declared on April 27, 2004, a quarterly  cash
dividend of $0.05 per common  share,  payable June 1, 2004, to  shareholders  of
record on May 11, 2004.




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

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

Results of Operations

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

                                        Three Months Ended
                                             March 31,
                                      -----------------------
                                         2004         2003
                                      ----------   ----------
Net sales:
   Americas                               46.1%        47.1%
   Europe                                 31.9         31.5
   Asia Pacific                           22.0         21.4
                                      ----------   ----------
   Consolidated net sales                100.0        100.0
Cost of sales                             25.3         26.2
                                      ----------   ----------
   Gross profit                           74.7         73.8
Operating expenses:
   Sales and marketing                    37.5         38.9
   Research and development               16.0         15.4
   General and administrative              8.1         11.1
                                      ----------   ----------
   Total operating expenses               61.6         65.4
                                      ----------   ----------
      Operating income                    13.1          8.4
Other income (expense):
   Interest income, net                    0.6          0.7
   Net foreign exchange loss                --           --
   Other income                             --           --
                                      ----------   ----------
Income before income taxes                13.7          9.1
Provision for income taxes                 3.4          2.3
                                      ----------   ----------
   Net income                             10.3%         6.8%
                                     ==========    ==========

     Net Sales.  Consolidated  net sales for the first quarter of 2004 increased
by $25.5  million or 26% from the  comparable  prior year  quarter.  The Company
believes the increase in sales is primarily  attributable to the introduction of
new and upgraded  products,  the continued  recovery in the global  economy,  an
increased market acceptance of the Company's products in Asia and North America,
and the strength of the Euro.  North American sales in the first quarter of 2004
increased by 23% from the first quarter of 2003.

     Sales outside of North America,  as a percentage of consolidated  sales for
the  quarter  ended  March  31,  2004,  increased  to  53.9%  from  52.9% in the
comparable  2003  period as a result of  stronger  sales in Asia and a  stronger
Euro.  Compared  to the first  quarter of 2003,  the  Company's  European  sales
increased by 27.1% to $39.8 million for the quarter ended March 31, 2004.  Sales
in Asia Pacific  increased by 29.4% to $27.5  million in the quarter ended March
31, 2004 compared to the same period in 2003. The Company  expects sales outside
of North America to continue to represent a significant  portion of its revenue.
The  Company  intends to  continue  to expand its  international  operations  by
increasing  its  presence  in  existing  markets,  adding a presence in some new
geographical markets and continuing the use of distributors to sell its products
in some countries.

     Sales 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 first quarter of 2003 and the first quarter of 2004, net of hedging results,
the change in the  exchange  rates had the effect of  increasing  the  Company's
consolidated  net  sales  by 8%;  increasing  European  net  sales  by  20%  and
increasing net sales in Asia Pacific by 5%. The increases in sales in Europe and
Asia as a result of the change in  exchange  rates was  partially  offset by the
decrease in local  currency  product  pricing in each region.  Since most of the
Company's   international   operating   expenses  are  also  incurred  in  local
currencies,  the change in exchange rates had the effect of increasing operating
expenses by $2.4 million, or 3.2%, for the quarter ended March 31, 2004 compared
to the comparable prior year period.

     Gross Profit.  As a percentage of sales,  gross profit increased to 75% for
the first quarter of 2004 from 74% for the first quarter of 2003.  Approximately
70% of the higher margin in the first quarter of 2004 compared to the comparable
prior year period is  attributable  to favorable  foreign  exchange  rates.  The
remaining  fraction of the higher margin is attributable to the favorable impact
of higher sales volume.  The increase in margin from the  comparable  prior year
period was offset in part by the effects of the increase in the  amortization of
capitalized  software  costs.  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 first quarter of
2004 increased to $46.7 million,  a 21% increase,  compared to the first quarter
of 2003.  Approximately  60% of the  increase  in these  expenses  in the  first
quarter of 2004 from the comparable  prior year period was  attributable  to the
increase in international sales and marketing personnel costs, due both from the
increase in international  sales and marketing personnel and from the effects of
the change in currency exchange rates,  with the remaining  fraction of increase
attributable  to increases in  advertising,  literature  cost and special  event
activity.  As a percentage of net sales, sales and marketing expenses were 37.5%
and 38.9% for the three months ended March 31, 2004 and 2003, respectively.  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 for the first
quarter of 2004  increased to $20.0 million,  a 31% increase,  compared to $15.3
million for the three months ended March 31, 2003. As a percentage of net sales,
research and development expenses increased to 16.0% for the quarter ended March
31,  2004,  from 15.4% for the quarter  ended March 31,  2003.  The  increase in
research and development costs in the first quarter of 2004 was primarily due to
increases in personnel costs from the hiring of additional  product  development
engineers, and the decrease in the capitalization of software development costs.
The Company plans to continue  making a  significant  investment in research and
development in order to remain competitive and support revenue growth.

     The Company capitalizes  software development costs in accordance with SFAS
No. 86,  "Accounting for the Costs of Computer  Software to be Sold,  Leased, or
Otherwise Marketed." The Company amortizes such costs over the related product's
estimated economic useful life, generally three years,  beginning when a product
becomes  available for general release.  Software  amortization  expense totaled
$1.8 million and $1.4  million for the  quarters  ended March 31, 2004 and 2003,
respectively.  Software development costs capitalized were $2.0 million and $4.6
million for the quarters ended March 31, 2004 and 2003, respectively.

     General and  Administrative.  General and  administrative  expenses for the
first  quarter of 2004  decreased 9% to $10.0 million from $11.0 million for the
comparable  prior  year  period.  As a  percentage  of net  sales,  general  and
administrative  expenses  decreased to 8.1% for the quarter ended March 31, 2004
from  11.1%  for the  first  quarter  of  2003.  The  decrease  in  general  and
administrative expenses in absolute amounts and as a percentage of sales for the
quarter  ended  March 31,  2004  from the  comparable  prior  year  period,  was
primarily  attributable to decreased litigation costs of $2.5 million associated
with a legal  action by the  Company  brought  against  The  MathWorks,  Inc. to
enforce the Company's intellectual property (see Note 8 of Notes to Consolidated
Financial  Statements).  This  decrease  was  offset  in  part by  increases  in
personnel and insurance  costs, and the costs associated with the upgrade of the
Company's business  applications suite to Oracles' latest web-based release 11i.
The Company expects that general and  administrative  expenses in future periods
will fluctuate in absolute amounts and as a percentage of revenue.

     Interest  Income,  Net.  Net interest  income in the first  quarter of 2004
increased to $712,000 from  $686,000 in the first quarter of 2003.  The increase
in interest  income in the first  quarter of 2004 was primarily due to increased
invested funds.  The primary source of interest income is from the investment of
the Company's cash.

     Net Foreign  Exchange  Gain  (Loss).  The Company  experienced  net foreign
exchange  losses in the first  quarter of 2004 of $2,000  compared  to losses of
$14,000  in the  first  quarter  of 2003.  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 $1.7
million  for the quarter  ended March 31, 2004 and reduced the foreign  exchange
gains by $1.7 million for the quarter ended March 31, 2003.

     Provision  for Income Taxes.  The  provision  for income taxes  reflects an
effective  tax rate of 25% for the three months ended March 31, 2004 and 25% for
the three months ended March 31, 2003. The Company's effective tax rate is lower
than  the U.S.  federal  statutory  rate of 35%  primarily  as a  result  of the
extraterritorial income exclusion,  tax-exempt interest and reduced tax rates in
certain foreign jurisdictions.

Liquidity and Capital Resources

     The Company is currently financing its operations and capital  expenditures
through cash flow from  operations.  At March 31, 2004,  the Company had working
capital of  approximately  $271.9 million compared to $255.3 million at December
31, 2003. Net cash provided by operating activities in the first quarter of 2004
and 2003 totaled $9.0 million and $13.5 million, respectively.

     Accounts receivable increased to $81.6 million at March 31, 2004 from $78.0
million at December 31, 2003.  Receivable  days  outstanding  increased to 60 at
March 31, 2004 compared to 57 at March 31, 2003. Consolidated inventory balances
increased to $51.5  million at March 31, 2004 from $38.8 million at December 31,
2003. The increase in inventory was due to the planned  increase in safety stock
inventory. Inventory turns decreased to 2.4 for the quarter ended March 31, 2004
from turns of 2.7 for the quarter  ended March 31, 2003.  Cash used in the first
three  months of 2004 for the purchase of property  and  equipment  totaled $3.0
million,  for the capitalization of internally  developed software costs totaled
$2.0 million, and for additions to other intangibles totaled $391,000. Cash used
in the first three  months of 2003 for the  purchase of property  and  equipment
totaled $3.1 million,  for the  capitalization of internally  developed software
costs totaled $4.6 million,  and for additions to other intangibles totaled $3.5
million.

     Cash provided by the issuance of common stock totaled $3.2 million and $1.7
million for the first quarter of 2004 and 2003, respectively,  and cash used for
the payment of dividends  totaled  $2.6 million and $0 for the first  quarter of
2004 and 2003,  respectively.  The  issuance of common  stock was  primarily  to
employees under the Company's Employee Stock Purchase and Stock Option Plans.

     The Company currently expects to fund expenditures for capital requirements
as well as  liquidity  needs  created  by  changes  in  working  capital  from a
combination of available cash and short-term  investment balances and internally
generated  funds.  As of  March  31,  2004 and  2003,  the  Company  had no debt
outstanding.  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   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 March 31, 2004, 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 March 31, 2004,  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  $8.6  million.
However,  as the  Company  utilizes  foreign  currency  instruments  for hedging
anticipated and firmly committed  transactions,  management believes that a loss
in fair value for those instruments will be substantially offset by increases in
the value of the underlying exposure.

     Short-term  Investments.  The fair value of the  Company's  investments  in
marketable  securities at March 31, 2004 was $153.2  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 its marketable  securities portfolio by
investing  in  multiple  types of  investment-grade  securities.  The  Company's
investment  portfolio  is  primarily  invested  in  securities  with at least an
investment grade rating to minimize  interest rate and credit risk as well as to
provide for an  immediate  source of funds.  Based on the  Company's  investment
portfolio  and interest  rates at March 31, 2004, a 100 basis point  increase or
decrease  in  interest   rates  would  result  in  a  decrease  or  increase  of
approximately  $770,000,  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.

Factors Affecting the Company's Business and Prospects

     U.S./Global Economic Slowdown.  As occurred in recent years, 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 any  recurrence  of the SARS  virus,  either  through
increased  difficulty or costs of the export of products into affected  regions,
the import of components used in the Company's  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 three years.  The Company
could also be subject to or  impacted  by acts of  terrorism  and/or the effects
that war or continued U.S.  military action would have on the U.S. and/or global
economies. 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 2004.  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 the Company's  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,  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  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 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 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 the Company's Web Site. The Company devotes resources
to  maintain  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. Any failure to successfully maintain the Web site
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  of the
Company 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 more  reliable  regional
management  information  systems to control  costs and  improve  its  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 ending  December 31, 2004, the Company will be upgrading
its European  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 comply 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 first
quarter of 2004 and the first  quarter  of 2003,  net of  hedging  results,  the
change in exchange rates had the effect of increasing the Company's consolidated
sales by $7.3 million,  or 8%, compared to the first quarter of 2003. Since most
of the  Company's  international  operating  expenses are also included in local
currencies,  the change in exchange rates had the effect of increasing operating
expenses by $2.4  million for the quarter  ended March 31, 2004  compared to the
comparable prior year period. If the U.S. dollar weakens in the future, it could
result in the Company  having to reduce prices locally in order for its products
to remain competitive in the local  marketplace.  If the U.S. dollar strengthens
in the future, and the Company is unable to successfully raise its international
selling  prices,  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 develop and implement information systems to support the operation
of this  facility.  This  facility and its  operation  are also subject to risks
associated with a relatively 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, any 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 the 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 proposal requiring changes in the accounting treatment for
stock  options.  The Company will comply with any changes in the  accounting  of
stock options required by the FASB and the Securities and Exchange Commission.

     Provisions in Our Charter  Documents  and Delaware Law and Our  Stockholder
Rights  Plan May Delay or  Prevent an  Acquisition  of Us.  Our  certificate  of
incorporation and bylaws and Delaware law contain  provisions that could make it
more  difficult for a third party to acquire us without the consent of our Board
of  Directors.  These  provisions  include  a  classified  Board  of  Directors,
prohibition  of   stockholder   action  by  written   consent,   prohibition  of
stockholders to call special meetings and the requirement that the holders of at
least 80% of our shares approve any business  combination not otherwise approved
by  two-thirds  of the  Board  of  Directors.  Delaware  law also  imposes  some
restrictions  on  mergers  and other  business  combinations  between us and any
holder of 15% or more of our outstanding common stock. In addition, our Board of
Directors has the right to issue preferred stock without  stockholder  approval,
which  could be used to  dilute  the  stock  ownership  of a  potential  hostile
acquirer.  Our Board of  Directors  adopted a new  stockholders  rights  plan on
January 21,  2004,  pursuant to which we declared and will pay a dividend of one
right for each share of our common stock  outstanding  as of May 10, 2004.  This
rights plan will replace a similar rights plan that has been in effect since our
initial  public  offering in 1995.  Unless  redeemed by us prior to the time the
rights are  exercised,  upon the occurrence of certain  events,  the rights will
entitle the holders to receive upon  exercise  thereof  shares of our  preferred
stock,  or  shares of an  acquiring  entity,  having a value  equal to twice the
then-current  exercise price of the right. The issuance of the rights could have
the effect of delaying or preventing a change of control of us.

     Proprietary  Rights and  Intellectual  Property  Litigation.  The Company's
success  depends  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  from  time  to  time  engages  in
litigation  to protect its  intellectual  property  rights.  In  monitoring  and
policing  its  intellectual  property  rights,  the  Company has been and may be
required to spend  significant  resources.  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 the SoftWIRE case and/or other existing
litigation,  and any other  intellectual  property  litigation  initiated in the
future,  will not cause significant  litigation expense,  liability,  injunction
against  some  of  the  Company's  products,  and a  diversion  of  management's
attention,  any of 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 the Company's  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 the Company's key 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
March 31,  2004,  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 quarter ended March
31,  2004,  there  were no  changes  in the  Company's  internal  controls  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 controls
over financial reporting.






                           PART II - OTHER INFORMATION



ITEM 1. LEGAL PROCEEDINGS

     The  Company  has  filed  two  complaints   against  The  MathWorks,   Inc.
("Defendant") for patent infringement.  In both complaints,  the Company claimed
the Defendant infringes certain of its U.S. patents and the Defendant challenged
the validity and  enforceability  of those  patents and asserts that it does not
infringe the claims of those patents.

     The first  complaint  was filed on January  25,  2001 in the U.S.  District
Court, Eastern District of Texas (Marshall  Division).  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
judgment  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 the same
products during the pendency of appeal.  The initial judgement and the royalties
on the sales of  infringing  products  through March 31, 2004 total $5.8 million
and are escrowed. 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.

     The second complaint was filed October 21, 2002, also in the U.S.  District
Court, Eastern District of Texas (Marshall Division) and on August 27, 2003, the
complaint was dismissed by agreement of the parties.

     On January 15, 2003, SoftWIRE Technology,  LLC ("SoftWIRE") and Measurement
Computing  Corporation ("MCC") filed a complaint against the Company in the U.S.
District  Court for the  District of  Massachusetts  asking the court to declare
that SoftWIRE does not infringe  certain of the Company's U.S.  patents and that
such patents are invalid and  unenforceable.  On February 21, 2003,  the Company
filed a complaint against SoftWIRE and MCC in the U.S.  District Court,  Eastern
District  of Texas  (Marshall  Division)  claiming  that both  SoftWIRE  and MCC
infringe the same and certain other of the Company's U.S. patents.  SoftWIRE and
MCC challenge the validity and  enforceability  of these patents and assert that
they do not infringe any of these patents.  In the Eastern District action,  the
Company seeks monetary damages and injunction of the sale of certain products of
SoftWIRE and MCC as well as  attorney's  fees and costs.  By order of the Court,
the Eastern  District action was transferred to the U.S.  District Court for the
District of  Massachusetts  on May 9, 2003, and has been  consolidated  with the
previously-filed  SoftWIRE  action,  which also  includes  counterclaims  by the
Company that are the same in substance  as the  Company's  claims in the Eastern
District  action.  On June 12,  2003,  SoftWIRE  moved  for  leave to amend  its
complaint in order to allege that the Company  infringes  two U.S.  patents that
SoftWIRE  acquired by purchase on May 23, 2003.  On November 5, 2003,  the Court
granted SoftWIRE's motion to amend, thereby adding SoftWIRE's two patents to the
litigation.  With respect to those two SoftWIRE patents, SoftWIRE seeks monetary
damages and injunction of the sale of the Company's  LabVIEW software  products,
as well as  attorney's  fees and costs.  The Company  challenges  the  validity,
enforceability  and  alleged  infringement  of  those  patents  and  intends  to
vigorously  defend  against  SoftWIRE's  claims.  Discovery in the litigation is
underway.  During the fourth quarter of 2003,  the Company  accrued $3.8 million
related to its probable loss from this  contingency,  which  consists  solely of
anticipated  patent defense costs that are probable of being incurred.  However,
the  outcome  of any  litigation  is  inherently  uncertain  and there can be no
assurance as to the ultimate outcome of this matter or any other litigation. The
Company  charged  approximately  $447,000  against this accrual during the first
quarter of 2004.


ITEM 5. OTHER INFORMATION

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






ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

(a) Exhibits.

     3.1(2)  Certificate of Incorporation, as amended, of the Company
     3.2(2)  Amended and Restated Bylaws of the Company
     4.1(1)  Specimen of Common Stock certificate of the Company
     4.2(3)  Rights Agreement dated as of January 21, 2004,  between the Company
             and EquiServe Trust Company, N.A.
     10.1(1) Form of Indemnification Agreement
     10.2(1) 1994 Incentive Plan*
     10.3(1) 1994 Employee Stock Purchase Plan*
     10.4(4) Agreement regarding Terms of Employment
     31.1    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
     31.2    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
     32.1    Certification of Chief Executive Officer and Chief Financial
             Officer Pursuant to 18 U.S.C. 1350, as Adopted Pursuant to Section
             906 of the Sarbanes-Oxley Act of 2002

     (1)     Incorporated by reference to the Company's Registration Statement
             of Form S-1 (Reg. No. 33-88386) declared effective March 13, 1995.
     (2)     Incorporated by reference to the same-number exhibit filed with the
             Company's Annual Report on Form 10-K for the fiscal year ended
             December 31, 2003.
     (3)     Incorporated by reference to the same-numbered exhibit filed with
             the Company's Current Report on Form 8-K filed on January 28, 2004.
     (4)     Incorporated by reference to the same-numbered exhibit filed with
             the Company's Annual Report on Form 10-K for the fiscal year ended
             December 31, 2002.

      *     Management Contract or Compensatory Plan or Arrangement

(b) Reports on Form 8-K.

     In connection with the Company's earnings press release for the fiscal year
ended December 31, 2003,  the Company  furnished a Current Report on Form 8-K on
January 21, 2004.

     In connection with the Company's adoption of a stockholder rights plan, the
Company filed a Current Report on Form 8-K on January 28, 2004.






                                    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: April 30, 2004