<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENT OF OPERATIONS AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               MAR-31-1997             JUN-30-1997             SEP-30-1997
<CASH>                                             253                     311                      93
<SECURITIES>                                       800                     701                     502
<RECEIVABLES>                                    2,349                   2,524                   2,883<F1>
<ALLOWANCES>                                         0                       0                       0
<INVENTORY>                                      2,394                   1,507                   2,017
<CURRENT-ASSETS>                                 6,050                   5,570                   5,840
<PP&E>                                             346                     347                     319<F1>
<DEPRECIATION>                                       0                       0                       0
<TOTAL-ASSETS>                                   8,093                   7,882                   7,898
<CURRENT-LIABILITIES>                            5,726                   5,082                   5,365
<BONDS>                                              0                       0                       0
<PREFERRED-MANDATORY>                              198                     198                     198
<PREFERRED>                                          0                       0                       0
<COMMON>                                             0                       0                       0
<OTHER-SE>                                       1,895                   2,316                   2,016
<TOTAL-LIABILITY-AND-EQUITY>                     8,093                   7,882                   7,898
<SALES>                                          9,964                  18,448                  27,421
<TOTAL-REVENUES>                                 9,964                  18,448                  27,421
<CGS>                                            8,873                  16,296                  24,146
<TOTAL-COSTS>                                    8,873                  16,296                  24,146
<OTHER-EXPENSES>                                 1,029                   2,055                   3,046
<LOSS-PROVISION>                                    60                     113                     167
<INTEREST-EXPENSE>                                  27                      53                      79
<INCOME-PRETAX>                                  (251)                   (503)                   (711)
<INCOME-TAX>                                         0                       0                       0
<INCOME-CONTINUING>                                  0                       0                       0
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     (251)                   (503)                   (711)
<EPS-PRIMARY>                                    (.02)                   (.05)                   (.07)
<EPS-DILUTED>                                    (.02)                   (.05)                   (.07)
<FN>
<F1>AMOUNTS REPORTED FOR ACCOUNTS RECEIVABLE AND PROPERTY, PLANT, AND EQUIPMENT
ARE NET AMOUNTS.
</FN>


</TABLE>