tape reader
51SIGABA — In the history of cryptography, the ECM Mark II was a rotor machine used by the United States from World War II (WWII) until the 1950s. The machine was also known as the SIGABA or Converter M 134 by the Army, or CSP 888/889 by the Navy, and a… …
52NSA encryption systems — The National Security Agency took over responsibility for all U.S. Government encryption systems when it was formed in 1952. The technical details of most NSA approved systems are still classified, but much more about its early systems has become …
53read|er — «REE duhr», noun. 1. a person who reads: »a good reader, a light reader. 2. a book for learning and practicing reading. 3. a person employed to read manuscripts and estimate their fitness for publication: »The ideal publisher s reader should have …
54Manchester Small-Scale Experimental Machine — Replica of the Small Scale Experimental Machine (SSEM) at the Museum of Science and Industry in Castlefield, Manchester …
55APEXC — The APEXC, or All Purpose Electronic X Ray Computer was designed by Andrew D. Booth at Birkbeck College, London in the early 1950s. From 1943 on, he started working on the determination of crystal structures using X ray diffraction data. The… …
56microfiche — Synonyms and related words: Flexowriter typewriter, Teleplotter, alphabetical printer, apograph, bulletin board, carbon, carbon copy, card, catalog card, digital graph plotter, disc, fiche, file, filing card, film, hard copy, index card, library… …
57microfilm — Synonyms and related words: Flexowriter typewriter, Photostat, Teleplotter, X ray, Xerox, alphabetical printer, backing, bibliofilm, bipack, black and white film, bulletin board, calotype, capture on film, card, cartridge, catalog card, clone,… …
58UNIVAC — serves as the catch all name for the American manufacturers of the lines of mainframe computers by that name, which through mergers and acquisitions underwent numerous name changes. The company UNIVAC began as the business computer division of… …
59IBM 726 — The IBM 726 dual magnetic tape reader/recorder for the IBM 701 was announced on May 21, 1952. Unlike later IBM 7 track drives, the 726 could read backwards as well as forwards.The tape had seven parallel tracks, six for data (called a copy group …
60Bootstrapping (computing) — In computing, bootstrapping ( to pull oneself up by one s bootstraps ) refers to techniques that allow a simple system to activate a more complicated system. A common scenario is the start up process of a computer system, where a small program,… …
