Systems Analysis for Business Data Processing |
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access storage device activities amendments amount applications arrangements batch bucket number cell characters chars check digit code numbers computer run computer's control totals core store cost created critical path data processing department data processing system decision table direct access storage DIRECT CHANGEOVER discs earliest date employed entries errors estimated event example factors fields float flow chart hardware home bucket IBM System/360 implementation input inserted investigation involved large number latest date layout machines MAGNETIC DRUMS magnetic tape manual manufacturers master file means ments method MICR movement necessary number of buckets number of records numeric digits operation organization output overflow bucket package paper tape possible printed procedure product code punched card random file range recruit routines Section seek area sequence sequential file sorting source documents staff sub-file suitable systems analyst techniques top management updating user departments user's weeks