
<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER>    1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1997
<PERIOD-END>                               MAY-31-1997
<CASH>                                       2,595,264
<SECURITIES>                                 3,194,054
<RECEIVABLES>                                6,274,501
<ALLOWANCES>                                 1,167,517
<INVENTORY>                                  6,102,375
<CURRENT-ASSETS>                            16,897,654
<PP&E>                                       2,410,128
<DEPRECIATION>                               1,627,534
<TOTAL-ASSETS>                              19,685,475
<CURRENT-LIABILITIES>                        6,976,875
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        72,135
<OTHER-SE>                                  12,636,465
<TOTAL-LIABILITY-AND-EQUITY>                19,685,475
<SALES>                                     19,169,701
<TOTAL-REVENUES>                            19,323,864
<CGS>                                        7,016,633
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<OTHER-EXPENSES>                            10,506,421
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<INTEREST-EXPENSE>                               4,906
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<INCOME-TAX>                                   712,795
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<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
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<EPS-PRIMARY>                                      .13
<EPS-DILUTED>                                      .13
        

</TABLE>
