<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM EMC
CORPORATION FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 2,235,909
<SECURITIES> 472,174
<RECEIVABLES> 1,836,673
<ALLOWANCES> 35,413
<INVENTORY> 868,594
<CURRENT-ASSETS> 5,724,766
<PP&E> 1,344,952
<DEPRECIATION> 975,683
<TOTAL-ASSETS> 9,675,543
<CURRENT-LIABILITIES> 1,873,677
<BONDS> 0
0
0
<COMMON> 21,880
<OTHER-SE> 7,481,196
<TOTAL-LIABILITY-AND-EQUITY> 9,675,543
<SALES> 5,611,492
<TOTAL-REVENUES> 6,251,530
<CGS> 2,660,087
<TOTAL-COSTS> 4,708,352
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 12,023
<INCOME-PRETAX> 1,670,139
<INCOME-TAX> 450,937
<INCOME-CONTINUING> 1,219,202
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 1,219,202
<EPS-BASIC> .57
<EPS-DILUTED> .54
</TABLE>