<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAY-31-2000
<PERIOD-START> JUN-01-1999
<PERIOD-END> MAY-31-2000
<CASH> 5,724
<SECURITIES> 5,170
<RECEIVABLES> 30,780
<ALLOWANCES> 1,095
<INVENTORY> 6,842
<CURRENT-ASSETS> 51,258
<PP&E> 41,098
<DEPRECIATION> 28,845
<TOTAL-ASSETS> 73,293
<CURRENT-LIABILITIES> 19,034
<BONDS> 0
0
0
<COMMON> 53,397
<OTHER-SE> (717)
<TOTAL-LIABILITY-AND-EQUITY> 73,293
<SALES> 112,716
<TOTAL-REVENUES> 130,568
<CGS> 67,228
<TOTAL-COSTS> 80,590
<OTHER-EXPENSES> 61,686
<LOSS-PROVISION> 452
<INTEREST-EXPENSE> 159
<INCOME-PRETAX> 14,846
<INCOME-TAX> 6,272
<INCOME-CONTINUING> (11,708)
<DISCONTINUED> 0
<EXTRAORDINARY> 26,713
<CHANGES> 0
<NET-INCOME> 8,574
<EPS-BASIC> 1.67
<EPS-DILUTED> 1.67
</TABLE>