<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> US DOLLARS
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-01-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<EXCHANGE-RATE>                                      1
<CASH>                                          43,810
<SECURITIES>                                    14,406
<RECEIVABLES>                                    9,942
<ALLOWANCES>                                       222
<INVENTORY>                                      1,143
<CURRENT-ASSETS>                                72,129
<PP&E>                                           9,798
<DEPRECIATION>                                   4,619
<TOTAL-ASSETS>                                  77,464
<CURRENT-LIABILITIES>                           10,800
<BONDS>                                            200
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            26
<OTHER-SE>                                      66,638
<TOTAL-LIABILITY-AND-EQUITY>                    77,464
<SALES>                                         16,110
<TOTAL-REVENUES>                                16,110
<CGS>                                            4,801
<TOTAL-COSTS>                                   11,647
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                    50
<INTEREST-EXPENSE>                                  11
<INCOME-PRETAX>                                  5,117
<INCOME-TAX>                                     1,840
<INCOME-CONTINUING>                              3,277
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,277
<EPS-PRIMARY>                                     0.11<F1>
<EPS-DILUTED>                                     0.10
<FN>
<F1>For Purposes of this Exhibit, Primary means Basic.
</FN>