keypunch การใช้

• In 1967 O'Toole joined IBM as a keypunch operator.
• The later IBM 129 keypunch also could operate as a verifier.
• IBM's investment could have gone the way of keypunch cards.
• Keypunch operators immediately recognized the symbol as an " explicit space ".
• He became a keypunch operator and studied computer programming.
• My mother worked seven days as a keypunch operator.
• He invented the first automatic card-feed mechanism and the first keypunch.
• A keypunch was usually located nearby for quick corrections.
• Metromail's subcontractor hired Texas prisoners to keypunch information on thousands of people.
• Programs offered included Junior accounting, secretarial, comptometer, stenographic, and keypunch.
• Businesses were familiar with storing data on punched cards and keypunch machines were widely employed.
• They used the newest technology, keypunch cards and that modern invention, the computer.
• The later 129 used electronic circuit cards to store simple programs written by the keypunch operator.
• TSO eliminated the need to punch cards on a keypunch machine, and send card reading machine.
• In reality it was unworkable and almost invariably users acquired a stand-alone keypunch / verifier.
• The notching mechanism was located in the area occupied by the print mechanism on a 026 printing keypunch.
• It suggests the origin came from a machine called the Chadless keypunch that cut holes in a paper card.
• Some early keypunch machines used a keyboard with 12 labeled keys to punch the correct holes in paper cards.
• The computer replaced the keypad unit from an old keypunch machine which had been originally installed by Richard Greenblatt.
• Businesses were familiar with storing data on punched cards, and keypunch machines and their operators were widely employed.