<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

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                         666,774
<SECURITIES>                                   679,752
<RECEIVABLES>                                1,135,956
<ALLOWANCES>                                    11,952
<INVENTORY>                                    522,456
<CURRENT-ASSETS>                             3,132,645
<PP&E>                                         724,475
<DEPRECIATION>                                 441,692
<TOTAL-ASSETS>                               5,269,065
<CURRENT-LIABILITIES>                          813,697
<BONDS>                                        491,636
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        10,134
<OTHER-SE>                                   3,876,387
<TOTAL-LIABILITY-AND-EQUITY>                 5,269,065
<SALES>                                      2,265,514
<TOTAL-REVENUES>                             2,419,778
<CGS>                                        1,098,225
<TOTAL-COSTS>                                1,779,539
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               9,883
<INCOME-PRETAX>                                679,419
<INCOME-TAX>                                   169,885
<INCOME-CONTINUING>                            509,564
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   509,564
<EPS-BASIC>                                        .50
<EPS-DILUTED>                                      .47