<ARTICLE>                     5
<LEGEND>
This schedule has been  restated to reflect the Company's  adoption of Statement
of Financial  Accounting  Standards No. 128,  "Earnings Per Share" (FAS 128) and
contains summary financial  information  extracted from the consolidated balance
sheets,  consolidated  statements of income and consolidated  statements of cash
flows  included in the Company's Form 10-K for the year ended December 31, 1997,
and is qualified in its entirety by reference to such  financial  statements and
the notes thereto.
</LEGEND>
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                              DEC-31-1996
<PERIOD-START>                                 JAN-01-1996
<PERIOD-END>                                   DEC-31-1996
<CASH>                                              23,727
<SECURITIES>                                             0
<RECEIVABLES>                                        5,592
<ALLOWANCES>                                           196
<INVENTORY>                                          2,470
<CURRENT-ASSETS>                                    34,951
<PP&E>                                               5,516
<DEPRECIATION>                                       3,884
<TOTAL-ASSETS>                                      36,833
<CURRENT-LIABILITIES>                                7,556
<BONDS>                                                  0
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                              0
<COMMON>                                                 9
<OTHER-SE>                                          29,268
<TOTAL-LIABILITY-AND-EQUITY>                        36,833
<SALES>                                             30,596
<TOTAL-REVENUES>                                    30,926
<CGS>                                               11,581
<TOTAL-COSTS>                                       11,741
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                        35
<INTEREST-EXPENSE>                                       6
<INCOME-PRETAX>                                      1,126
<INCOME-TAX>                                         1,126
<INCOME-CONTINUING>                                  2,252
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                         2,252
<EPS-PRIMARY>                                         0.26
<EPS-DILUTED>                                         0.24