<ARTICLE> 5
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          14,877
<SECURITIES>                                     2,376
<RECEIVABLES>                                   22,828
<ALLOWANCES>                                     1,426
<INVENTORY>                                     15,985
<CURRENT-ASSETS>                                61,554
<PP&E>                                          29,328
<DEPRECIATION>                                  24,764
<TOTAL-ASSETS>                                  73,912
<CURRENT-LIABILITIES>                           24,680
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        60,198
<OTHER-SE>                                    (10,985)
<TOTAL-LIABILITY-AND-EQUITY>                    73,912
<SALES>                                         54,298<F1>
<TOTAL-REVENUES>                                54,298
<CGS>                                           31,535<F2>
<TOTAL-COSTS>                                   31,535
<OTHER-EXPENSES>                                26,874
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   3
<INCOME-PRETAX>                                (3,771)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (3,771)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (3,771)
<EPS-BASIC>                                     (0.23)
<EPS-DILUTED>                                   (0.23)
<FN>
<F1>INCLUDES REVENUES FROM LICENSING OF SOFTWARE AND SUPPORT SERVICES
<F2>INCLUDES COSTS FROM LICENSING OF SOFTWARE AND SUPPORT SERVICES
</FN>