<ARTICLE>                     5
<MULTIPLIER>                                   1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                              FEB-29-2000
<PERIOD-END>                                   AUG-31-1999
<CASH>                                          62,718
<SECURITIES>                                     8,000
<RECEIVABLES>                                   19,861
<ALLOWANCES>                                     1,132
<INVENTORY>                                     19,681
<CURRENT-ASSETS>                               127,991
<PP&E>                                         100,412
<DEPRECIATION>                                  66,573
<TOTAL-ASSETS>                                 205,529
<CURRENT-LIABILITIES>                           24,896
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,616
<OTHER-SE>                                     159,823
<TOTAL-LIABILITY-AND-EQUITY>                   205,529
<SALES>                                         73,697
<TOTAL-REVENUES>                                73,697
<CGS>                                           45,221
<TOTAL-COSTS>                                   45,221
<OTHER-EXPENSES>                                28,154
<LOSS-PROVISION>                                    70
<INTEREST-EXPENSE>                                 150
<INCOME-PRETAX>                                  1,500
<INCOME-TAX>                                       567
<INCOME-CONTINUING>                                933
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       933
<EPS-BASIC>                                     0.06
<EPS-DILUTED>                                     0.06