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The 402 could read punched cards at a speed of 80 to 150 cards per minute, depending on process options, while printing data at a speed of up to 100 lines per minute. The built-in line printer used 43 alpha-numerical type bars (left-side) and 45 numerical type bars (right-side, shorter bars) to print a total of 88 positions across a line of a report.
Here is a sample of IPF markup from IBM's Information Presentation Facility Programming Guide. .* This is a comment line :userdoc. :title.Endangered Mammals :h1 res=001. The Manatee :p. The manatee has a broad flat tail and two flipper like forelegs. There are no back legs.
An IBM 80-column punched card of the type most widely used in the 20th century IBM 1442 card reader/punch for 80 column cards. 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.
IBM was the largest supplier of unit record equipment and this article largely reflects IBM practice and terminology. Sheet 1 of Hollerith's U.S. Patent 395,782 showing his early concept for recording statistical information by means of holes punched in paper.
An IBM tabulating machine, such as the 402 or 407 series would have several counters available in different sizes. (For example, the IBM 402/403 had four sets each of 2, 4, 6 and 8 digit counters, labeled 2A, 2B, 2C, 2D, 4A, 4B etc.) Each counter had two counter control entries to specify either addition (plus) or subtraction (minus). If ...
IBM 402 and 403, from 1948, were modernized successors to the 405. Control panel for an IBM 402 Accounting Machine. The 1952 Bull Gamma 3 could be attached to this tabulator or to a card read/punch. [20] [21] IBM 407. Introduced in 1949, the 407 was the mainstay of the IBM unit record product line for almost three decades.
For example, it is possible to format a document for a laser printer or a line printer or for a screen by specifying a profile for the device, without changing the document itself. The Standard Generalized Markup Language (SGML), an ISO -standard technology for defining generalized markup languages for documents, is descended from GML. [ 1 ]
Later, the 407 print mechanism was used in the IBM 1132 line printer, part of the low cost IBM 1130 computer system, introduced in 1965. The IBM World Trade Corporation marketed Computing Accounting Machines (CAM), variations of either the IBM 402 or 407 with an attached computer. CAM variations of the 407 included the IBM 421, 444, and 447. [4]