<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               MAR-31-1998
<CASH>                                          28,870
<SECURITIES>                                    10,732
<RECEIVABLES>                                   25,801
<ALLOWANCES>                                     2,519
<INVENTORY>                                     13,761
<CURRENT-ASSETS>                                84,832
<PP&E>                                          27,209
<DEPRECIATION>                                  23,346
<TOTAL-ASSETS>                                  90,254
<CURRENT-LIABILITIES>                           22,680
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        66,037
<OTHER-SE>                                       1,400
<TOTAL-LIABILITY-AND-EQUITY>                    90,254
<SALES>                                         30,664<F1>
<TOTAL-REVENUES>                                30,664
<CGS>                                           19,810<F2>
<TOTAL-COSTS>                                   19,810
<OTHER-EXPENSES>                                12,017
<LOSS-PROVISION>                                  (26)
<INTEREST-EXPENSE>                                   5
<INCOME-PRETAX>                                  (752)
<INCOME-TAX>                                     (263)
<INCOME-CONTINUING>                              (489)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     (489)
<EPS-PRIMARY>                                   (0.03)
<EPS-DILUTED>                                   (0.03)
<FN>
<F1>INCLUDES REVENUES FROM LICENSING OF SOFTWARE AND SUPPORT SERVICES.
<F2>INCLUDES COSTS FROM LICENSING OF SOFTWARE AND SUPPORT SERVICES.
</FN>