PrintWorks Professional Pre Punched Paper, 7 Hole Punch Left for 2 Ring & 3 Ring Binders & Side Fastener File Folders, 8.5 x 11, 20 lb., 500 Sheets (04342), White

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Williams, Robert V. (2002). "Punched Cards: A Brief Tutorial". IEEE Annals of the History of Computing: Web Extra. IEEE. 24 (2). Archived from the original on 2018-06-13 . Retrieved 2015-03-26. Essinger, James (2007-03-29). Jacquard's Web: How a Hand-loom Led to the Birth of the Information Age. OUP Oxford. pp.35–40. ISBN 978-0-19280578-2. The Hollerith punched cards used for the 1890 U.S. census were blank. [35] Following that, cards commonly had printing such that the row and column position of a hole could be easily seen. Printing could include having fields named and marked by vertical lines, logos, and more. [36] "General purpose" layouts (see, for example, the IBM 5081 below) were also available. For applications requiring master cards to be separated from following detail cards, the respective cards had different upper corner diagonal cuts and thus could be separated by a sorter. [37] Other cards typically had one upper corner diagonal cut so that cards not oriented correctly, or cards with different corner cuts, could be identified. In the 1880s, Tolbert Lanston invented the Monotype typesetting system, which consisted of a keyboard and a composition caster. The tape, punched with the keyboard, was later read by the caster, which produced lead type according to the combinations of holes in up to 31 positions. The tape reader used compressed air, which passed through the holes and was directed into certain mechanisms of the caster. The system went into commercial use in 1897 and was in production well into the 1970s, undergoing several changes along the way. In the 21st century, use of punched tape would be very rare, possibly in obsolete military systems or by some hobbyists. In computer numerical control (CNC) machining applications, paper tape is uncommon, but some modern systems still measure the size of stored CNC programs in feet or meters, corresponding to the equivalent length if the data were actually punched on paper tape. [3] Formats [ edit ] Diagnostic minicomputer software on fanfold paper tape (1975) Mylar punched tape was used for durability in industrial applications

Punched Paper - Binding Supplies - Binding | Binding101 Punched Paper - Binding Supplies - Binding | Binding101

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. The IBM 80-column punched card format dominated the industry, becoming known as just IBM cards, even though other companies made cards and equipment to process them. [64] A 5081 card from a non-IBM manufacturer. ISO 6586:1980 Data processing – Implementation of the ISO 7- bit and 8- bit coded character sets on punched cards. Defines ISO 7-bit and 8-bit character sets on punched cards as well as the representation of 7-bit and 8-bit combinations on 12-row punched cards. Derived from, and compatible with, the Hollerith Code, ensuring compatibility with existing punched card files.Photo of Gamble Hall by gatty790". Panoramio.com. Archived from the original on 2013-07-15 . Retrieved 2013-10-05. A much more primitive as well as a much longer high-level encoding scheme was also used, BNPF (Begin-Negative-Positive-Finish), [10] [11] also written as BPNF (Begin-Positive-Negative-Finish). [12] In BNPF encoding, a single byte (8 bits) would be represented by a highly redundant character framing sequence starting with a single uppercase ASCII "B", eight ASCII characters where a "0" would be represented by a "N" and a "1" would be represented by a "P", followed by an ending ASCII "F". [10] [12] [11] These ten-character ASCII sequences were separated by one or more whitespace characters, therefore using at least eleven ASCII characters for each byte stored (9% efficiency). The ASCII "N" and "P" characters differed in four bit positions, providing excellent protection from single punch errors. Alternative schemes named BHLF (Begin-High-Low-Finish) and B10F (Begin-One-Zero-Finish) were also available where either "L" and "H" or "0" and "1" were also available to represent data bits, [13] but in both of these encoding schemes, the two data-bearing ASCII characters differ in only one bit position, providing very poor single punch error detection. Winter, Dik T. "80-column Punched Card Codes". Archived from the original on 2007-04-08 . Retrieved 2012-11-06.

A5 Blank Paper 6-Hole Punched, 250 Sheets (500 Pages), 100

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. Babbage, Charles (1837-12-26). "On the Mathematical Powers of the Calculating Engine". The Origins of Digital Computers. pp.19–54. doi: 10.1007/978-3-642-61812-3_2. ISBN 978-3-642-61814-7. 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. Precursors [ edit ] Carpet loom with Jacquard apparatus by Carl Engel, around 1860. Chain feed is on the left.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. Perforated paper tapes were first used by Basile Bouchon in 1725 to control looms. However, the paper tapes were expensive to create, fragile, and difficult to repair. By 1801, Joseph Marie Jacquard had developed machines to create paper tapes by tying punched cards in a sequence for Jacquard looms. The resulting paper tape, also called a "chain of cards", was stronger and simpler both to create and to repair. This led to the concept of communicating data not as a stream of individual cards, but as one "continuous card" (or tape). Paper tapes constructed from punched cards were widely used throughout the 19th century for controlling looms. Many professional embroidery operations still refer to those individuals who create the designs and machine patterns as punchers even though punched cards and paper tape were eventually phased out in the 1990s. FORTRAN Port-A-Punch card. Compiler directive "SQUEEZE" removed the alternating blank columns from the input. Data was represented by the presence or absence of a hole at a particular location. Tapes originally had five rows of holes for data across the width of the tape. Later tapes had more rows. A 1944 electro-mechanical programmable calculating machine, the Automatic Sequence Controlled Calculator or Harvard Mark I, used paper tape with 24 rows. [4] Australia's 1951 electronic computer, CSIRAC, used 3-inch (76mm) wide paper tape with twelve rows. [5] Fisher, Lawrence M. (1998-09-18). "Reynold Johnson, 92, Pioneer In Computer Hard Disk Drives". The New York Times . Retrieved 2010-06-26.