<ARTICLE>                     5
<MULTIPLIER>                                   1,000

                                            
<PERIOD-TYPE>                                  3-MOS
<FISCAL-YEAR-END>                              FEB-28-2001
<PERIOD-END>                                   AUG-31-2000
<CASH>                                         114,632
<SECURITIES>                                     9,629
<RECEIVABLES>                                   24,127
<ALLOWANCES>                                       415
<INVENTORY>                                     17,350
<CURRENT-ASSETS>                               180,723
<PP&E>                                         110,368
<DEPRECIATION>                                  74,756
<TOTAL-ASSETS>                                 273,701
<CURRENT-LIABILITIES>                           38,212
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,683
<OTHER-SE>                                     208,575
<TOTAL-LIABILITY-AND-EQUITY>                   273,701
<SALES>                                         84,116
<TOTAL-REVENUES>                                84,116
<CGS>                                           49,804
<TOTAL-COSTS>                                   49,804
<OTHER-EXPENSES>                                32,860
<LOSS-PROVISION>                                   (95)
<INTEREST-EXPENSE>                                 120
<INCOME-PRETAX>                                 31,605
<INCOME-TAX>                                    11,693
<INCOME-CONTINUING>                             19,872
<DISCONTINUED>                                   4,765
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    24,637
<EPS-BASIC>                                       1.56
<EPS-DILUTED>                                     1.46