<TABLE> <S> <C>


<ARTICLE> 5
<RESTATED>

<S>                             <C>                         <C>                           <C>
<PERIOD-TYPE>                   3-MOS                       6-MOS                         9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996                 DEC-31-1997                   DEC-31-1997
<PERIOD-END>                               MAR-31-1997                 JUN-30-1997                   SEP-30-1997
<CASH>                                         434,048                   1,458,786                     1,846,208
<SECURITIES>                                   513,788                     305,000                       293,333
<RECEIVABLES>                                  653,379                     760,649                       832,312
<ALLOWANCES>                                    29,591                      35,591                        22,914
<INVENTORY>                                  1,686,004                   1,330,761                     1,028,008
<CURRENT-ASSETS>                             3,356,786                   3,880,822                     4,048,540
<PP&E>                                         646,191                     627,048                       679,366
<DEPRECIATION>                                 387,108                     404,498                       434,719
<TOTAL-ASSETS>                               3,712,316                   4,128,372                     4,353,187
<CURRENT-LIABILITIES>                        1,140,318                   1,315,466                     1,174,529
<BONDS>                                              0                           0                             0
<PREFERRED-MANDATORY>                                0                           0                             0
<PREFERRED>                                          0                           0                             0
<COMMON>                                        31,349                      31,349                        32,453
<OTHER-SE>                                           0                           0                             0
<TOTAL-LIABILITY-AND-EQUITY>                 3,712,316                   4,128,372                     4,353,187
<SALES>                                      1,599,487                   2,038,222                     1,770,482
<TOTAL-REVENUES>                             1,599,487                   2,038,222                     1,770,482
<CGS>                                          945,826                   1,155,564                     1,036,514
<TOTAL-COSTS>                                  607,157                     675,167                       502,289
<OTHER-EXPENSES>                                     0                           0                        19,009
<LOSS-PROVISION>                                     0                           0                             0
<INTEREST-EXPENSE>                                   0                           0                             0
<INCOME-PRETAX>                                 46,047                     240,908                       285,688
<INCOME-TAX>                                         0                           0                             0
<INCOME-CONTINUING>                                  0                           0                             0
<DISCONTINUED>                                       0                           0                             0
<EXTRAORDINARY>                                      0                           0                             0
<CHANGES>                                            0                           0                             0
<NET-INCOME>                                    46,047                     240,908                       285,688
<EPS-PRIMARY>                                      .01                         .08                           .09
<EPS-DILUTED>                                      .01                         .06                           .06



</TABLE>