<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               SEP-30-1996
<CASH>                                          18,722
<SECURITIES>                                    12,526
<RECEIVABLES>                                   22,749
<ALLOWANCES>                                     3,792
<INVENTORY>                                     13,786
<CURRENT-ASSETS>                                76,258
<PP&E>                                          24,236
<DEPRECIATION>                                  18,671
<TOTAL-ASSETS>                                  83,983
<CURRENT-LIABILITIES>                           18,980
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        66,485
<OTHER-SE>                                     (1,847)
<TOTAL-LIABILITY-AND-EQUITY>                    83,983
<SALES>                                         87,718<F1>
<TOTAL-REVENUES>                                87,718
<CGS>                                           61,556<F2>
<TOTAL-COSTS>                                   61,556
<OTHER-EXPENSES>                                44,741
<LOSS-PROVISION>                                   690
<INTEREST-EXPENSE>                                  98
<INCOME-PRETAX>                               (10,480)
<INCOME-TAX>                                   (4,193)
<INCOME-CONTINUING>                            (6,287)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (6,287)
<EPS-PRIMARY>                                   (0.38)
<EPS-DILUTED>                                   (0.38)
<FN>
<F1>Includes revenues from licensing of software and support services.
<F2>Includes costs from licensing of software and support services.
</FN>