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Punched Card Data Processing
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accounting machine accounts-receivable alphabetic applications automatic data processing basic binary binary coded decimal block calculator CARD DATA PROCESSING cards per minute central processing unit characters COBOL collator computer system control panel counter customer number cycles deck digits drum ELECTRONIC error example feed field Figure flowchart functions handle holes hubs input input/output installation instructions inventory invoice number keyboard keypunch machine language magnetic disk magnetic drum magnetic tape main storage manufacturers mark-sense master card ment needed numeric digits on-line perform personnel pocket produce punched card PUNCHED CARD DATA punched paper tape punching position puter reading station reports represent reproducer routine sales detail card sorter sorting source document speed summary cards tabulator third-generation computer tion top management trailer card unit record equipment unit record machines updating verifier wired zero