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Data Entry Operator (DEO) Interview Question:
What punch cards?
Submitted by: AdministratorFor operating fairground organs and related instruments. It was used through the 20th century in unit record machines for input, processing, and data storage. Early digital computers used punched cards as the primary medium for input of both computer programs and data, with offline data entry on key punch machines. Some voting machines use punched cards.
Submitted by: Administrator
Submitted by: Administrator
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