1. past tense of keypunch; to punch holes in cards or tape using a keypunch machine to encode data
Usage: computing; historical

Examples

• The data was keypunched onto cards for processing by the mainframe computer.
• She keypunched customer information all day at the insurance company.
• Before modern computers, programmers keypunched their code onto punch cards.
• The census data was keypunched by hundreds of operators in the 1960s.
• He keypunched the survey responses to prepare them for statistical analysis.
• The payroll information was keypunched and verified before processing.