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A 12-row/80-column IBM punched card from the mid-twentieth century. A punched card (also punch card [1] or punched-card [2]) is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines.
A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with computer card punches and ...
The description below describes an all-IBM shop (a "shop" is programmer jargon for a programming site) but shops using other brands of mainframes (or minicomputers) would have similar equipment although because of cost or availability might have different manufacturer's equipment, e.g. an NCR, ICL, Hewlett-Packard (HP) or Control Data shop would have NCR, ICL, HP, or Control Data computers ...
The 1301 was designed by an ICT and GEC joint subsidiary, Computer Developments Limited (CDL) at GEC's Coventry site formed in 1956. [2] CDL was taken over by ICT, but the 1301 was built at the GEC site as ICT lacked the manufacturing capability at that time. [3] The computer was announced in May 1960, though development had started much earlier.
IBM 029 Card Punch. Original data were usually punched into cards by workers, often women, known as keypunch operators, under the control of a program card (called a drum card because it was installed on a rotating drum in the machine), which could automatically skip or duplicate predefined card columns, enforce numeric-only entry, and, later ...
Imagine how steamed you might be if you took that parking home and tried to pay for it online, only to learn later that it was a fake web site, and that your computer has been The pay-a-parking ...
• Fake email addresses - Malicious actors sometimes send from email addresses made to look like an official email address but in fact is missing a letter(s), misspelled, replaces a letter with a lookalike number (e.g. “O” and “0”), or originates from free email services that would not be used for official communications.
Documation was an American Stock Exchange-listed computer hardware manufacturer [1] founded in 1969 [2] in Melbourne, Florida that went public in 1976. [3] They made (punched card) card readers used in some American elections 3 decades later. [4] They also produced Impact Line printers. [5]