Source: wikibot/punched-card-input-output
= Punched card input/output
{wiki=Punched_card_input/output}
Punched card input/output, also known as punched card technology or punch card input/output, refers to an early method of data entry, storage, and processing using cards made of stiff paper that had holes punched into them. This technology was widely used from the early 1900s until the 1970s, primarily for data processing in computing and data management systems.