<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               SEP-30-1996
<EXCHANGE-RATE>                                      1
<CASH>                                          28,750
<SECURITIES>                                    22,038
<RECEIVABLES>                                    7,512
<ALLOWANCES>                                     (967)
<INVENTORY>                                      2,266
<CURRENT-ASSETS>                                61,633
<PP&E>                                           3,680
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                  65,499
<CURRENT-LIABILITIES>                           10,858
<BONDS>                                            264
<COMMON>                                           125
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                      54,252
<TOTAL-LIABILITY-AND-EQUITY>                    65,499
<SALES>                                         33,826
<TOTAL-REVENUES>                                33,826
<CGS>                                           11,080
<TOTAL-COSTS>                                   11,080
<OTHER-EXPENSES>                                14,579
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  9,465
<INCOME-TAX>                                     2,555
<INCOME-CONTINUING>                              6,910
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     6,910
<EPS-PRIMARY>                                     0.52
<EPS-DILUTED>                                     0.52
<FN>
ADDITIONAL CURRENT ASSET DEFERRED TAXES AND 
  OTHER                                          2,034
OTHER ASSETS, NET                                  186
INTEREST INCOME, NET                             1,298
</FN>