<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FINANCIAL
STATEMENTS FOR THE THREE MONTHS ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-2001
<PERIOD-START>                             APR-01-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                          77,046
<SECURITIES>                                    47,470
<RECEIVABLES>                                   84,354
<ALLOWANCES>                                    (2,984)
<INVENTORY>                                     60,971
<CURRENT-ASSETS>                               298,404
<PP&E>                                          62,951
<DEPRECIATION>                                 (34,332)
<TOTAL-ASSETS>                                 365,911
<CURRENT-LIABILITIES>                          107,860
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       247,297
<OTHER-SE>                                       8,397
<TOTAL-LIABILITY-AND-EQUITY>                   365,911
<SALES>                                        123,671
<TOTAL-REVENUES>                               123,671
<CGS>                                           67,604
<TOTAL-COSTS>                                   67,604
<OTHER-EXPENSES>                                32,874
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 169
<INCOME-PRETAX>                                 24,504
<INCOME-TAX>                                     8,619
<INCOME-CONTINUING>                             15,885
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    15,885
<EPS-BASIC>                                       0.49
<EPS-DILUTED>                                     0.45