<TABLE> <S> <C>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C> <C>
<PERIOD-TYPE> 3-MOS 6-MOS 9-MOS
<FISCAL-YEAR-END> APR-30-1999 APR-30-1999 APR-30-1999
<PERIOD-START> APR-25-1998 APR-25-1998 APR-25-1998
<PERIOD-END> JUL-31-1998 OCT-30-1998 JAN-29-1999
<CASH> 31,476 48,355 59,886
<SECURITIES> 14,930 8,750 8,150
<RECEIVABLES> 35,960 44,928 50,735
<ALLOWANCES> 911 1,511 1,686
<INVENTORY> 9,732 10,722 11,751
<CURRENT-ASSETS> 99,523 121,565 143,720
<PP&E> 22,292 25,188 29,939
<DEPRECIATION> 9,631 11,128 12,735
<TOTAL-ASSETS> 126,073 150,548 172,648
<CURRENT-LIABILITIES> 26,397 39,150 36,792
<BONDS> 0 0 0
0 0 0
0 0 0
<COMMON> 72,064 75,468 90,655
<OTHER-SE> 27,455 35,796 45,085
<TOTAL-LIABILITY-AND-EQUITY> 126,073 150,548 172,648
<SALES> 57,375 123,000 198,616
<TOTAL-REVENUES> 57,375 123,000 198,616
<CGS> 23,239 50,120 80,938
<TOTAL-COSTS> 23,239 50,120 80,938
<OTHER-EXPENSES> 22,901 49,239 79,540
<LOSS-PROVISION> 0 0 0
<INTEREST-EXPENSE> 0 0 0
<INCOME-PRETAX> 11,356 24,757 39,796
<INCOME-TAX> 4,259 9,284 14,929
<INCOME-CONTINUING> 7,097 15,473 24,867
<DISCONTINUED> 0 0 0
<EXTRAORDINARY> 0 0 0
<CHANGES> 0 0 0
<NET-INCOME> 7,097 15,473 24,867
<EPS-BASIC> 0.03 0.06 0.09
<EPS-DILUTED> 0.02 0.05 0.08
</TABLE>