Keypunch

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August 25, 2024 3 min read Definitions
Keypunch: A Historical Data Entry Method
Technology History Data-Entry Keypunch Punched Cards Hollerith Code Historical Technology
Keypunch involves punching holes into 80-column computer cards with a machine-readable code. This method has been replaced by modern electronic keyboard technology.
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August 25, 2024 4 min read Definitions
Punch Card: Index Card with Punched Holes Representing Data
Computing History Data Storage Punch Card Data Storage Computing History Keypunch Obsolete Tech
An index card punched with holes to represent data. Widely used in the 1960s for feeding information into computers, punch cards became obsolete with the advent of interactive terminals.
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