punch card
A 'punch card' was an early method for data storage and input, crucial in the development of computing and data processing technologies.
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Definition
B2Computing
(historical, technical)A card with holes punched in specific positions to represent data, used in early computers.
Example
- The punch card was fed into the computer to input the program instructions.
- Early programmers had to manually punch holes in punch cards to store data.
B1Customer Loyalty Programs
(informal)A card marked with a hole at each purchase, used to track customer loyalty and offer rewards.
Example
- After ten coffee purchases, the punch card entitles you to a free drink.
- Make sure to bring your punch card to earn points for each visit.
Similar
Terms that have similar or relatively close meanings to "punch card":
punch inpunched outpalm cardhole punchpunch outfile cardname carddance cardpunch frontbingo cardpunch downpicture cardpunch uppunch someone's ticketpunching bag