IBM 24 Card Punch, IBM 26 Printing Card Punch Reference Manual (PDF). October 1965. p.26. A24-0520-3. The variable-length card feed feature on the 24 or 26 allows the processing of 51-, 60-, 66-, and 80-column cards (Figure 20)

PUNCHED | English meaning - Cambridge Dictionary PUNCHED | English meaning - Cambridge Dictionary

Jones, Douglas W. "Punched Cards" . Retrieved 2006-10-20. (Collection shows examples of left, right, and no corner cuts.) Suppliers often offer a cheaper economy option as well. This paper is much more affordable but tears easily. It is similar to printer paper, however I believe it is even thinner, to offer some translucency. It is without the reinforced quality that professional paper provides. This is fine for when you are testing the waters in animation, but it will not be ideal for when you get into more sophisticated work as it gets damaged easily with flipping and erasing. IBM Operator's Guide (PDF). IBM. July 1959. p.141. A24-1010. Master Card: The first card of a group containing fixed or indicative information for that group Punched cards were widely used in the 20th century, where unit record machines, organized into data processing systems, used punched cards for data input, output, and storage. [3] [4] The IBM 12-row/80-column punched card format came to dominate the industry. Many early digital computers used punched cards as the primary medium for input of both computer programs and data.Some tape readers were standalone devices, connected to the main computer by a harness of cabling. These readers were often used with concertina or fan-folded paper tape. It was rare to see them used with spools of paper tape. Although you could, of course, unspool the paper tape loosely into a container like a cardboard box let the reader whip through the length of the tape, and let it stream out the other side into another handy box.

Punched tape - CodeDocs Punched tape - CodeDocs

The Univac UNITYPER introduced magnetic tape for data entry in the 1950s. During the 1960s, the punched card was gradually replaced as the primary means for data storage by magnetic tape, as better, more capable computers became available. Mohawk Data Sciences introduced a magnetic tape encoder in 1965, a system marketed as a keypunch replacement which was somewhat successful. Punched cards were still commonly used for entering both data and computer programs until the mid-1980s when the combination of lower cost magnetic disk storage, and affordable interactive terminals on less expensive minicomputers made punched cards obsolete for these roles as well. [31] :151 However, their influence lives on through many standard conventions and file formats. The terminals that replaced the punched cards, the IBM 3270 for example, displayed 80 columns of text in text mode, for compatibility with existing software. Some programs still operate on the convention of 80 text columns, although fewer and fewer do as newer systems employ graphical user interfaces with variable-width type fonts. Luebke, David Martin [at Wikidata]; Milton, Sybil Halpern [in German] (Autumn 1994). "Locating the victim: An overview of census-taking, tabulation technology and persecution in Nazi Germany". IEEE Annals of the History of Computing. IEEE. 16 (3): 25–. doi: 10.1109/MAHC.1994.298418. S2CID 16010272.

Brown, Betsy (1987-12-06). "Westchester Bookcase". The New York Times. Edward Ziegler […] an editor at the Reader's Digest […] wrote a science fiction novel, The Man Whose Name Wouldn't Fit, under the pen name Theodore Tyler Razy, Claudius (1913). Étude analytique des petits modèles de métiers exposés au musée des tissus[ Analytical study of small loom models exhibited at the museum of fabrics] (in French). Lyon, France: Musée Historique des Tissus. p.120. da Cruz, Frank (2019-08-28). "Herman Hollerith". Columbia University Computing History. Columbia University . Retrieved 2020-03-09. After some initial trials with paper tape, he settled on punched cards... 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. For some computer applications, binary formats were used, where each hole represented a single binary digit (or " bit"), every column (or row) is treated as a simple bit field, and every combination of holes is permitted.

Punched tape - Wikipedia Punched tape - Wikipedia

Paper tape could be read into computers at up to 1,000 characters per second. [8] In 1963, a Danish company called Regnecentralen introduced a paper tape reader called RC2000 that could read 2,000 characters per second; later they increased the speed further, up to 2,500cps. As early as World War II, the Heath Robinson tape reader, used by Allied codebreakers, was capable of 2,000cps while Colossus could run at 5,000cps using an optical tape reader designed by Arnold Lynch. Reference Manual 1401 Data Processing System (PDF). IBM. April 1962. p.10. A24-1403-5. The IBM 1402 Card Read-Punch provides the system with simultaneous punched-card input and output. This unit has two card feeds.

Powers/Remington Rand/UNIVAC 90-column format [ edit ] A blank Remington Rand UNIVAC format card. Card courtesy of MIT Museum. A punched Remington Rand card with an IBM card for comparison

Xerox Business White A4 80gsm 4-Hole Punched Paper (Pack of

Proesch, Roland (2009). Technical Handbook for Radio Monitoring HF: Edition 2009. Books on Demand. ISBN 978-3837045734. When buying paper for your home or office, you need to consider size (A3, A4, etc.), paper weight (gsm which stands for 'grams per square metre'), colour and your printer (inkjet, laser). Most tape-punching equipment used solid circular punches to create holes in the tape. This process created " chad", or small circular pieces of paper. Managing the disposal of chad was an annoying and complex problem, as the tiny paper pieces had a tendency to escape containment and to interfere with the other electromechanical parts of the teleprinter equipment. Chad from oiled paper tape was particularly problematic, as it tended to clump and build up, rather than flowing freely into a collection container.

Rexel Choices Blue P225 Hole Punch

Our extensive office paper range includes stationery and digital imaging stalwarts such as Xerox, Canon, HP, Navigator (the world's favourite paper brand) and everybody's favourite budget office supplies offering, 5 Star.