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

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          JUL-31-1999
<PERIOD-START>                             AUG-01-1998
<PERIOD-END>                               APR-30-1999
<CASH>                                           6,023
<SECURITIES>                                    20,065
<RECEIVABLES>                                   10,000
<ALLOWANCES>                                       417
<INVENTORY>                                      5,637
<CURRENT-ASSETS>                                42,601
<PP&E>                                           4,993
<DEPRECIATION>                                   4,652
<TOTAL-ASSETS>                                  44,117
<CURRENT-LIABILITIES>                            7,350
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             9
<OTHER-SE>                                      36,758
<TOTAL-LIABILITY-AND-EQUITY>                    44,117
<SALES>                                         29,897
<TOTAL-REVENUES>                                29,897
<CGS>                                           23,106
<TOTAL-COSTS>                                   23,106
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                    737
<INCOME-TAX>                                       180
<INCOME-CONTINUING>                                557
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       557
<EPS-BASIC>                                     0.09
<EPS-DILUTED>                                     0.09