• Thumbnail for Punched card
    A punched card (also punch card or punched-card) is a piece of card stock that stores digital data using punched holes. Punched cards were once common...
    67 KB (6,964 words) - 08:02, 20 August 2024
  • Thumbnail for Lace card
    A lace card is a punched card with all holes punched (also called a whoopee card, ventilator card, flyswatter card, or IBM doily). They were mainly used...
    1 KB (178 words) - 09:14, 18 February 2024
  • Thumbnail for Punched card sorter
    punched card sorter is a machine for sorting decks of punched cards. Sorting was a major activity in most facilities that processed data on punched cards...
    10 KB (1,073 words) - 20:23, 25 August 2024
  • Thumbnail for Punched card input/output
    mid-1970s. Punched cards had been in use since the 1890s; their technology was mature and reliable. Card readers and punches developed for punched card machines...
    12 KB (1,386 words) - 20:23, 25 August 2024
  • can acquire data from a card via a number of methods, including: optical scanning of printed text or barcodes or holes on punched cards, electrical signals...
    20 KB (2,376 words) - 05:05, 15 August 2024
  • Thumbnail for Computer programming in the punched card era
    programmers created, edited and stored their programs line by line on punch cards. A punched card is a flexible write-once medium that encodes data, most commonly...
    10 KB (1,399 words) - 11:45, 30 April 2024
  • Thumbnail for Unit record equipment
    read data from punched paper tape and punched that data into cards. The IBM 063 Card-Controlled Tape Punch read punched cards, punching that data into...
    59 KB (6,047 words) - 20:27, 25 August 2024
  • Thumbnail for Edge-notched card
    each card was beveled, much like Hollerith punched cards. Edge-notched cards, however, were not intended to be read by machines such as IBM card sorters...
    10 KB (1,182 words) - 20:11, 24 August 2024
  • Ballot (redirect from Punch-card ballot)
    event of a dispute. In a jurisdiction using a punched card system, voters choose by removing or "punching out" a perforated chad from the ballot next each...
    15 KB (1,640 words) - 09:51, 18 August 2024
  • the fall of 2009. Punched card systems employ a card (or cards) and a small clipboard-sized device for recording votes. Voters punch holes in the cards...
    32 KB (3,436 words) - 20:27, 25 August 2024
  • Thumbnail for Punched tape
    Punched tape or perforated paper tape is a form of data storage device that consists of a long strip of paper through which small holes are punched. It...
    29 KB (3,405 words) - 10:21, 25 May 2024
  • Thumbnail for Superimposed code
    was popular in marginal punched-card systems. Many names, some of them trademarked, have been used for marginal punched-card systems: edge-notched cards...
    9 KB (1,367 words) - 09:16, 22 June 2024
  • devised a tabulating system that included cards (Hollerith card, later Punched card), a punch for holes in them representing data, a tabulator and a sorter...
    12 KB (1,377 words) - 13:33, 5 May 2024
  • Thumbnail for Dehomag
    technology of punched cards, Herman Hollerith. In April 1949 the company name was changed to IBM Deutschland. The technology of punched cards dates back...
    10 KB (1,005 words) - 07:33, 15 March 2024
  • Thumbnail for Keypunch
    Keypunch (redirect from Key punch)
    punched cards contained data to be processed by those machines. For computers equipped with a punched card input/output device the resulting punched cards...
    37 KB (4,527 words) - 20:18, 25 August 2024
  • Thumbnail for Herman Hollerith
    Herman Hollerith (category Punched card)
    tabulating machine for punched cards to assist in summarizing information and, later, in accounting. His invention of the punched card tabulating machine...
    23 KB (2,070 words) - 20:10, 25 August 2024
  • Thumbnail for Chad (paper)
    Chad (paper) (category Punched card)
    created when holes are made in a paper, card or similar synthetic materials, such as computer punched tape or punched cards. The word "chad" has been used...
    8 KB (730 words) - 16:58, 9 June 2024
  • Thumbnail for Time clock
    Time clock (redirect from Clock card)
    A time clock, sometimes known as a clock card machine, punch clock, or time recorder, is a device that records start and end times for hourly employees...
    15 KB (1,889 words) - 20:26, 25 August 2024
  • Thumbnail for History of computing hardware
    Herman Hollerith invented data storage on punched cards that could then be read by a machine. To process these punched cards, he invented the tabulator and...
    170 KB (17,626 words) - 20:11, 25 August 2024
  • Thumbnail for IBM 519
    pencil in designated locations on a punched card and then punch holes corresponding to those marks into the card number cards consecutively (an optional...
    8 KB (576 words) - 20:12, 25 August 2024
  • Thumbnail for IBM 601
    Multiplying Punch was a unit record machine that could read two numbers from a punched card and punch their product in a blank field on the same card. The factors...
    2 KB (197 words) - 20:12, 25 August 2024
  • Thumbnail for List of IBM products
    systems card reader/punch IBM 1412: Punched card reader/punch IBM 1442: IBM 1440 and IBM System/360 Card reader/punch IBM 1444: IBM 1240/1440 Punched card reader/punch...
    186 KB (19,362 words) - 20:19, 25 August 2024
  • Thumbnail for Mechanical computer
    Retrieved 2020-07-02. General Information Manual: An Introduction to IBM Punched Card Data Processing. IBM. p. 1. Janda, Kenneth (1965). Data Processing. Northwestern...
    20 KB (1,743 words) - 19:23, 5 August 2024
  • Thumbnail for Aperture card
    An aperture card is a type of punched card with a cut-out window into which a chip of microfilm is mounted. Such a card is used for archiving or for making...
    7 KB (857 words) - 00:39, 4 April 2024
  • Thumbnail for Hole punch
    for multi-hole punched paper is with a ring binder. A book-like cover is fitted with retaining rings matching the pattern of the punched holes. The rings...
    19 KB (2,365 words) - 17:25, 11 June 2024
  • Both the United States and Nazi Germany used IBM punched card technology for some parts of their operations and record keeping. In Germany, during World...
    9 KB (1,062 words) - 20:13, 25 August 2024
  • Thumbnail for Jacquard machine
    number of punched cards laced together into a continuous sequence. Multiple rows of holes were punched on each card, with one complete card corresponding...
    20 KB (2,503 words) - 17:07, 17 August 2024
  • Thumbnail for Tabulating machine
    Tabulating machine (category Punched card)
    "After some initial trials with paper tape, he settled on punched cards..." Hollerith used punched cards with round holes, 12 rows, and 24 columns. The cards...
    19 KB (2,258 words) - 20:25, 25 August 2024
  • Card image is a traditional term for a character string, usually 80 characters in length, that was, or could be, contained on a single punched card. IBM...
    1 KB (123 words) - 02:42, 3 October 2019
  • Thumbnail for Remington Rand 409
    The Remington Rand 409, a punched card calculator which was programmed with a plugboard, was designed in 1949.[citation needed] It was sold in two models:...
    5 KB (330 words) - 01:42, 7 March 2023