<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED INCOME STATEMENTS, THE CONSOLIDATED BALANCE SHEETS AND THE
ACCOMPANYING NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS, AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                          11,176
<SECURITIES>                                    12,243
<RECEIVABLES>                                   12,038
<ALLOWANCES>                                       950
<INVENTORY>                                      1,799
<CURRENT-ASSETS>                                37,525
<PP&E>                                           8,855
<DEPRECIATION>                                   4,998
<TOTAL-ASSETS>                                  41,382
<CURRENT-LIABILITIES>                           12,852
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             9
<OTHER-SE>                                      28,521
<TOTAL-LIABILITY-AND-EQUITY>                    41,382
<SALES>                                         35,503
<TOTAL-REVENUES>                                44,109
<CGS>                                           20,262
<TOTAL-COSTS>                                   20,262
<OTHER-EXPENSES>                                21,846
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 146
<INCOME-PRETAX>                                  3,028
<INCOME-TAX>                                       665
<INCOME-CONTINUING>                              2,363
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,363
<EPS-PRIMARY>                                     0.22
<EPS-DILUTED>                                     0.22