<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED BALANCE SHEET AT MARCH 30, 1997 AND THE CONSOLIDATED
STATEMENT OF INCOME FOR THE THREE MONTHS ENDED MARCH 30, 1997 AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
<CIK> 0000097210
<NAME> TERADYNE, INC.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-30-1997
<EXCHANGE-RATE>                                      1
<CASH>                                          91,689
<SECURITIES>                                   106,567
<RECEIVABLES>                                  194,704
<ALLOWANCES>                                     1,936
<INVENTORY>                                    151,662
<CURRENT-ASSETS>                               594,211
<PP&E>                                         577,559
<DEPRECIATION>                                 308,392
<TOTAL-ASSETS>                               1,096,814
<CURRENT-LIABILITIES>                          196,413
<BONDS>                                         15,053
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        10,438
<OTHER-SE>                                     861,012
<TOTAL-LIABILITY-AND-EQUITY>                 1,096,814
<SALES>                                        248,302
<TOTAL-REVENUES>                               248,302
<CGS>                                          152,935
<TOTAL-COSTS>                                  227,026
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 541
<INCOME-PRETAX>                                 26,400
<INCOME-TAX>                                     9,240
<INCOME-CONTINUING>                             17,160
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    17,160
<EPS-PRIMARY>                                     0.21
<EPS-DILUTED>                                     0.20