<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET, CONSOLIDATED STATEMENT OF OPERATIONS AND
CONSOLIDATED STATEMENT OF CASH FLOWS INCLUDED IN THE COMPANY'S FORM 10-Q FOR THE
PERIOD ENDING MARCH 31, 1997, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                          14,462
<SECURITIES>                                     8,456
<RECEIVABLES>                                   23,508
<ALLOWANCES>                                     1,840
<INVENTORY>                                     14,163
<CURRENT-ASSETS>                                67,246
<PP&E>                                          34,295
<DEPRECIATION>                                  23,735
<TOTAL-ASSETS>                                 110,738
<CURRENT-LIABILITIES>                           29,114
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            17
<OTHER-SE>                                      81,607
<TOTAL-LIABILITY-AND-EQUITY>                   110,738
<SALES>                                         21,402
<TOTAL-REVENUES>                                21,402
<CGS>                                            6,834
<TOTAL-COSTS>                                    6,834
<OTHER-EXPENSES>                                18,029
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 128
<INCOME-PRETAX>                                (3,069)
<INCOME-TAX>                                     (951)
<INCOME-CONTINUING>                            (2,118)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (2,118)
<EPS-PRIMARY>                                   (0.13)
<EPS-DILUTED>                                   (0.13)