<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                           9,196
<SECURITIES>                                     8,490
<RECEIVABLES>                                   20,175
<ALLOWANCES>                                     1,253
<INVENTORY>                                     13,905
<CURRENT-ASSETS>                                57,019
<PP&E>                                          29,764
<DEPRECIATION>                                  25,992
<TOTAL-ASSETS>                                  68,734
<CURRENT-LIABILITIES>                           18,418
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        59,472
<OTHER-SE>                                     (9,202)
<TOTAL-LIABILITY-AND-EQUITY>                    68,734
<SALES>                                         26,424<F1>
<TOTAL-REVENUES>                                26,424
<CGS>                                           15,174<F2>
<TOTAL-COSTS>                                   15,174
<OTHER-EXPENSES>                                13,482
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   4
<INCOME-PRETAX>                                (1,988)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (1,988)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (1,988)
<EPS-PRIMARY>                                   (0.12)
<EPS-DILUTED>                                   (0.12)
<FN>
<F1>Includes revenues from licensing of software and support services.
<F2>Includes costs from licensing of software and support services.
</FN>