<ARTICLE>                     5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND THE CONSOLIDATED STATMENT OF OPERATIONS 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-END>                                       MAR-31-1997
<CASH>                                                  12,033
<SECURITIES>                                            12,779
<RECEIVABLES>                                           20,581
<ALLOWANCES>                                                 0
<INVENTORY>                                              4,722
<CURRENT-ASSETS>                                        55,595
<PP&E>                                                   6,226
<DEPRECIATION>                                               0
<TOTAL-ASSETS>                                          79,656
<CURRENT-LIABILITIES>                                    7,531
<BONDS>                                                  4,087
<PREFERRED-MANDATORY>                                        0
<PREFERRED>                                                  0
<COMMON>                                                   467
<OTHER-SE>                                              67,862
<TOTAL-LIABILITY-AND-EQUITY>                            79,656
<SALES>                                                 14,379
<TOTAL-REVENUES>                                        14,765
<CGS>                                                    2,269
<TOTAL-COSTS>                                           10,084
<OTHER-EXPENSES>                                             0
<LOSS-PROVISION>                                             0
<INTEREST-EXPENSE>                                          94
<INCOME-PRETAX>                                          4,587
<INCOME-TAX>                                             1,192
<INCOME-CONTINUING>                                      4,587
<DISCONTINUED>                                               0
<EXTRAORDINARY>                                              0
<CHANGES>                                                    0
<NET-INCOME>                                             3,395
<EPS-PRIMARY>                                             0.07
<EPS-DILUTED>                                             0.07