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IBM 650: A Milestone in Computing History

Explore the early days of scientific calculation with the IBM 650, a groundbreaking computer from 1954, known for its simplicity, profitability, and advanced technologies like drum memory. Learn about its impact and success in the evolving field of information technology.

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IBM 650: A Milestone in Computing History

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  1. HISTÓRIAS DAS TECNOLOGIAS DA INFORMAÇÃO I Os primórdios do cálculo científico: As “eléctricas”, da HICA à EDP, passando pelo LNEC Lisboa, Cordoaria Nacional, 15 Janeiro 2003 Coordenação: Eduardo J C Beira Professor, Departamento de Sistemas de Informação, Universidade do Minho

  2. IBM 650: uma novidade, em 1954 (Dezembro) • Barato: só custava meio milhão USD • Pequeno: só ocupava uma sala • Simples: programado em decimal e não em binário • Simples: operado pelo programador • Lucrativo: o primeiro computador comercial bem rentável • Avançado: memória externa de tambores (drum memory) • Um sucesso: mais de 2000 máquinas instaladas

  3. S. H. Hollingdale e G. C. Tootill, "Electronic computers (revised edition)", Penguin Books, 1971 (1ª edição: 1965) (plate 8)A legenda da figura é elucidativa e diz:A small modern digital computer.The operator´s keyboard is on the left. On the centre table (from left to right) are two paper tape readers, a teleprinter and the associated transmitter, and two paper tape punches. Below the table are tape bins and some of the electronic circuits. The central computer and storage units are in the cabinets on the right.

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