<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> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 1,794,925
<SECURITIES> 544,567
<RECEIVABLES> 1,792,678
<ALLOWANCES> 38,302
<INVENTORY> 757,869
<CURRENT-ASSETS> 5,144,173
<PP&E> 1,225,790
<DEPRECIATION> 975,370
<TOTAL-ASSETS> 8,434,725
<CURRENT-LIABILITIES> 1,606,816
<BONDS> 0
0
0
<COMMON> 21,804
<OTHER-SE> 6,613,158
<TOTAL-LIABILITY-AND-EQUITY> 8,434,725
<SALES> 3,560,919
<TOTAL-REVENUES> 3,968,525
<CGS> 1,693,491
<TOTAL-COSTS> 3,003,825
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 9,827
<INCOME-PRETAX> 1,042,498
<INCOME-TAX> 281,474
<INCOME-CONTINUING> 761,024
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 761,024
<EPS-BASIC> .36
<EPS-DILUTED> .34
</TABLE>