- keypunches
- v. use a keypunch to create holes in a card or paper tape n. device which punches holes in cards or paper for data-processing systems (Computers)
English contemporary dictionary. 2014.
keypunches
Look at other dictionaries:
Key punch — A key punch is a device for entering data into punched cards by precisely punching holes at locations designated by the keys struck by the operator. Early keypunches were manual devices. Later keypunches were mechanized, often resembled a small… … Wikipedia
Information retrieval — This article is about information retrieval in general. For the fictional government department, see Brazil (film). Information retrieval (IR) is the area of study concerned with searching for documents, for information within documents, and for… … Wikipedia
Punched card — Overpunch redirects here. For the code, see Signed overpunch. A punched card, punch card, IBM card, or Hollerith card is a piece of stiff paper that contains digital information represented by the presence or absence of holes in predefined… … Wikipedia
List of IBM products — The following is a list of notable products from the International Business Machines (IBM) Corporation and its predecessor corporations, beginning in the 1890s, and spanning punched card machinery, time clocks, and typewriters, via mainframe… … Wikipedia
Unit record equipment — Before the advent of electronic computers, data processing was performed using electromechanical devices called unit record equipment, electric accounting machines (EAM) or tabulating machines. Unit record machines were as ubiquitous in industry… … Wikipedia
Lochkartenlocher — und Lochkartenstanzer, englisch Key Punch oder Card Punch, wurden in der Zeit der maschinellen Datenverarbeitung zum Erstellen von Lochkarten verwendet. Lochkarten wurden benutzt zur Steuerung von Maschinen als Träger des Programmcodes oder als… … Deutsch Wikipedia
Lochkartenstanzer — Der Lochkartenlocher (auch Lochkartenstanzer, englisch Key Punch oder Card Punch) dient zum Lochen von Lochkarten. Lochkarten wurden gebraucht zur Steuerung von Maschinen als Programmcode oder zur Verarbeitung von Daten als Speichermedium.… … Deutsch Wikipedia
