<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FINANCIAL
STATEMENTS CONTAINED IN FORM 10-K FOR THE FISCAL YEARS ENDED DECEMBER 31, 1995
AND 1996, AND IN FORM 10-Q FOR THE QUARTERLY PERIODS ENDED MARCH 31, 1996,
JUNE 30, 1996 AND SEPTEMBER 30, 1996 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
       
<S>                          <C>                <C>                 <C>                  <C>                   <C>              
<PERIOD-TYPE>                12-MOS             12-MOS             3-MOS                 6-MOS                 9-MOS            
<FISCAL-YEAR-END>                   DEC-31-1995        DEC-31-1996       DEC-31-1996           DEC-31-1996           DEC-31-1996
<PERIOD-START>                      JAN-01-1995        JAN-01-1996       JAN-01-1996           JAN-01-1996           JAN-01-1996
<PERIOD-END>                        DEC-31-1995        DEC-31-1996       MAR-31-1996           JUN-30-1996           SEP-30-1996
<CASH>                                   23,127             53,304            18,059                29,775                40,078
<SECURITIES>                                  0                  0                 0                     0                     0
<RECEIVABLES>                            51,934             49,217            61,020                49,270                51,658
<ALLOWANCES>                              1,344                870             1,389                   789                   892
<INVENTORY>                              37,845             30,940            38,210                27,123                28,442
<CURRENT-ASSETS>                        126,702            154,002           132,249               138,426               142,449
<PP&E>                                  105,837             89,107            49,107<F1>            39,350<F1>            44,389<F1
>

<DEPRECIATION>                           57,288             44,388                 0                     0                     0
<TOTAL-ASSETS>                          181,765            205,105           187,800               184,020               193,369
<CURRENT-LIABILITIES>                    58,538             64,413            60,676                54,006                59,394
<BONDS>                                      75                  0                49                    24                     0
<PREFERRED-MANDATORY>                         0                  0                 0                     0                     0
<PREFERRED>                                   0                  0                 0                     0                     0
<COMMON>                                  9,565             14,547             9,614                 9,652                 9,691
<OTHER-SE>                              106,668            118,405           110,513               113,470               117,288
<TOTAL-LIABILITY-AND-EQUITY>            181,765            205,105           187,800               184,020               193,369
<SALES>                                 303,787            288,531            83,085               143,289               213,900
<TOTAL-REVENUES>                        304,783            290,294            83,359               143,863               215,012
<CGS>                                   194,440            174,440            52,464                85,750               128,627
<TOTAL-COSTS>                           194,440            174,440            52,464                85,750               128,627
<OTHER-EXPENSES>                         84,048             81,407            23,064                41,330                60,791
<LOSS-PROVISION>                            104                312                92                   117                   236
<INTEREST-EXPENSE>                        1,640                217                52                   105                   165
<INCOME-PRETAX>                          24,551             33,918             7,687                16,561                25,193
<INCOME-TAX>                              9,108             12,617             2,929                 6,310                 9,523
<INCOME-CONTINUING>                      15,443             21,301             4,758                10,251                15,670
<DISCONTINUED>                                0              (863)                 0               (1,469)               (1,289)
<EXTRAORDINARY>                               0                  0                 0                     0                     0
<CHANGES>                                     0                  0                 0                     0                     0
<NET-INCOME>                             15,443             20,438             4,758                 8,782                14,381
<EPS-PRIMARY>                               .77               1.00               .23                   .43                   .70
<EPS-DILUTED>                               .75                .97               .23                   .42                   .68
<FN>
<F1>PROPERTY, PLANT AND EQUIPMENT, AT COST LESS ACCUMULATED DEPRECIATION AND
AMORTIZATION.
</FN>
        


</TABLE>