<ARTICLE> 5
<MULTIPLIER> 1,000

                                                                       
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          APR-24-1998             APR-24-1998             APR-24-1998
<PERIOD-START>                             APR-26-1997             APR-26-1997             APR-26-1997
<PERIOD-END>                               JUL-25-1997             OCT-24-1997             JAN-23-1998
<CASH>                                          25,578                  28,520                  39,302
<SECURITIES>                                     4,850                   5,250                   5,250
<RECEIVABLES>                                   16,852                  23,113                  26,684
<ALLOWANCES>                                       296                     421                     546
<INVENTORY>                                     12,719                  11,718                   9,045
<CURRENT-ASSETS>                                63,855                  73,361                  85,394
<PP&E>                                          15,161                  17,014                  18,638
<DEPRECIATION>                                   5,543                   6,783                   8,074
<TOTAL-ASSETS>                                  76,492                  86,598                  98,908
<CURRENT-LIABILITIES>                           16,891                  20,479                  25,122
<BONDS>                                              0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                        55,814                  57,457                  59,579
<OTHER-SE>                                       3,597                   8,482                  14,037
<TOTAL-LIABILITY-AND-EQUITY>                    76,492                  86,598                  98,908
<SALES>                                         33,420                  71,821                 115,805
<TOTAL-REVENUES>                                33,420                  71,821                 115,805
<CGS>                                           13,570                  29,316                  47,196
<TOTAL-COSTS>                                   13,570                  29,316                  47,196
<OTHER-EXPENSES>                                13,264                  28,332                  45,791
<LOSS-PROVISION>                                     0                     125                     125
<INTEREST-EXPENSE>                                   0                       0                       0
<INCOME-PRETAX>                                  6,754                  14,570                  23,458
<INCOME-TAX>                                     2,533                   5,464                   8,797
<INCOME-CONTINUING>                              4,221                   9,106                  14,661
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     4,221                   9,106                  14,661
<EPS-BASIC>                                       0.02                    0.04                    0.06
<EPS-DILUTED>                                     0.02                    0.03                    0.05