Punched card
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A punched card is a stiff paper-based medium used to store digital information via the presence or absence of holes in predefined positions. Developed over the 19th to 20th centuries, punched cards we
A set of two 12-row/80-column punched cards (one blank, one used) from the mid-twentieth century
Carpet loom with Jacquard apparatus by Carl Engel, around 1860. The chain feed is on the left.
A worker changing Jacquard cards in a lace machine, September 1918. The pattern of the lace is dictated by the holes in the cards.
Woman operating the card puncher, c. 1940
Magnetic-tape data storage
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Magnetic-tape data storage is a system for storing digital information on magnetic tape using digital recording. Commercial magnetic tape products used for data storage were first released in the 1950
Punched card
…used punched cards as the primary medium for input of both computer programs and data. Punched cards were used for decades before being replaced by magnetic-tape data storage. While punched cards are now obsolete as a storage medium, as of 2012, some voting machines still used punched cards to record votes. Punched cards had…
An example of commercial software distributed on tape
UNISERVO tape drives with a UNIVAC computer system.
10+1⁄2-inch (270 mm) diameter reel of 9-track tape
Dual drive DECtape unit