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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 was developed from and was subsequently used alongside punched cards, the difference being that the tape is continuous. Punched cards, and chains of punched cards, were used for control of looms ...
The Ćuk converter[ 1] ( Serbo-Croatian: [tɕûːk], English: / ˈtʃuːk /) is a type of buck-boost converter with low ripple current. [ 2] A Ćuk converter can be seen as a combination of boost converter and buck converter, having one switching device and a mutual capacitor, to couple the energy. Similar to the buck-boost converter with ...
Punched card. 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 . Punched cards were widely used in the 20th ...
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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 ). A hole punch can also refer to similar tools for other materials, such as leather, cloth, or sheets ...
Across Waltonwood's senior living communities, residents have made over 1,000 homemade pet treats, more than 2,000 toys, and 200 blankets. Waltonwood shared in a release that the company was ...
Keypunch. IBM 026 Keypunch. Keypunch operators at work at the U.S. Social Security Administration in the 1940s. Operators compiling hydrographic data for navigation charts on punch cards using the IBM Type 016 Electric Duplicating Key Punch, New Orleans, 1938. A keypunch is a device for precisely punching holes into stiff paper cards at ...
Signed overpunch. In computing, a signed overpunch is a coding scheme which stores the sign of a number by changing (usually) the last digit. It is used in character data on IBM mainframes by languages such as COBOL, PL/I, and RPG. [1] Its purpose is to save a character that would otherwise be used by the sign digit. [2]
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