<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from Form 10Q for
the quarter ending May 31, 2000 and is qualified in its entirety by reference to
such financial statements.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> FEB-29-2000
<PERIOD-START> MAR-01-2000
<PERIOD-END> MAY-31-2000
<CASH> 11,617,089
<SECURITIES> 0
<RECEIVABLES> 13,164,709
<ALLOWANCES> 613,297
<INVENTORY> 4,146,027
<CURRENT-ASSETS> 30,277,145
<PP&E> 31,623,237
<DEPRECIATION> 21,853,055
<TOTAL-ASSETS> 41,224,878
<CURRENT-LIABILITIES> 12,662,587
<BONDS> 0
0
0
<COMMON> 224,946
<OTHER-SE> 23,513,322
<TOTAL-LIABILITY-AND-EQUITY> 41,224,878
<SALES> 23,823,714
<TOTAL-REVENUES> 24,315,554
<CGS> 11,073,754
<TOTAL-COSTS> 11,073,754
<OTHER-EXPENSES> 9,203,722
<LOSS-PROVISION> (16,735)
<INTEREST-EXPENSE> 77,897
<INCOME-PRETAX> 4,117,195
<INCOME-TAX> 1,606,000
<INCOME-CONTINUING> 2,511,195
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 2,511,195
<EPS-BASIC> .16
<EPS-DILUTED> .15
</TABLE>