<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-START> NOV-01-1999
<PERIOD-END> APR-30-2000
<CASH> 2,336,000
<SECURITIES> 8,105,000
<RECEIVABLES> 2,216,000
<ALLOWANCES> (66,000)
<INVENTORY> 749,000
<CURRENT-ASSETS> 14,057,000
<PP&E> 4,854,000
<DEPRECIATION> (1,149,000)
<TOTAL-ASSETS> 27,054,000
<CURRENT-LIABILITIES> 1,567,000
<BONDS> 0
0
0
<COMMON> 69,000
<OTHER-SE> 25,304,000
<TOTAL-LIABILITY-AND-EQUITY> 27,054,000
<SALES> 4,440,000
<TOTAL-REVENUES> 4,440,000
<CGS> 1,475,000
<TOTAL-COSTS> 864,000
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 2,227,000
<INCOME-TAX> 830,000
<INCOME-CONTINUING> 1,397,000
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 1,397,000
<EPS-BASIC> .20
<EPS-DILUTED> .19
</TABLE>