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This category contains articles about punched cards and card handling equipment, including card readers, card punches, and keypunches. Subcategories This category has the following 2 subcategories, out of 2 total.
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 ...
A wall-sized display sample of a punch card for the 1954 U.S. Census of Agriculture. ANSI INCITS 21-1967 (R2002), Rectangular Holes in Twelve-Row Punched Cards (formerly ANSI X3.21-1967 (R1997)) Specifies the size and location of rectangular holes in twelve-row 3 + 1 ⁄ 4-inch-wide (83 mm) punched cards.
Escorts Kubota Limited, formerly Escorts Limited, is an Indian multinational conglomerate that operates in the sectors of agricultural machinery, construction machinery, material handling, and railway equipment. Its headquarters are located in Faridabad, Haryana. The company was launched in 1944 and has marketing operations in more than 40 ...
Three different international-standard two-hole punches. A hole punch, also known as hole puncher, or paper puncher, is an office tool that is used to create holes in sheets of paper, often for the purpose of collecting the sheets in a binder or folder (such collected sheets are called loose leaves).
Hiroji Kubota (久保田 博二, Kubota Hiroji, born 2 August 1939) is a Japanese photographer, a member of Magnum Photos who has specialized in photographing the far east. Born in Kanda (Tokyo), Kubota studied politics at Waseda University, graduating in 1962. [1] In 1961 he met the Magnum photographers René Burri, Elliott Erwitt, and Burt ...
The screw is then threaded into the punch and the screw tightened until the punch is drawn completely through the sheet metal. [2] The manual system uses a screw that has a standard hex head or square head and is driven using an allen key or wrench. A manual knockout punch can handle holes from 0.5 to 1.25 in (13 to 32 mm).