Kriativ-techVolume 1, Issue 7, April 2018, Pages: xxxReceived: Nov. 28, 2017;Accepted: Dec. 8, 2017;Published: Feb. 24, 2018


Pedro Ramos Brandão, Professor Coordenador do ISTEC,  Departamento de Estudos e Investigação em Tecnologias de Informação e Sociedade - ISTEC



To cite this article

Pedro Ramos Brandão, História da Informática: o aparecimento do computador pessoalDOI: 10.31112/kriativ-tech-2018-01-14


The appearance of the first personal computers, the differentiating peculiarities in relation to mainframes. The evolution of storage allowing the appearance of DOS and BIOS. The evolution of microprocessors simultaneously with the evolution of semiconductors.


Personal Computer, Computer History, Computer History, Calculation, Microprocessor, Altair, BASIC, System / 360.


[1] – Bill Gosper, quoted in Steven Levy, Hackers of the Computer Revolution (New York: Anchor Doubleday, 1984): 67.[2] – Bell et al., Computer Engineering, tabela na  p. 507[3] – Edward Fredkin entrevista com o autor, 21 maio de 1993, referida por Paul Ceruzzzi in Modern Computing, 3003.[4] – David Ahl, “Computer Games”, in Anthony Ralston and Edwin Reilly, eds, in Encyclopedia of Computer Science, third edition (New York: Van Nostrand, 1993): 285-287.[5] – Max Palevsky, 10 julho 1974, U.S. v. IBM, Accession 1912, Box 31, transcript; Hagley Musem Archives.[6] – Stephen Manes and Paul Andrews, Gates: How Microsoft’s Mogul Reinvented and Industry, and Made Himself the Richest Man in America (New York: Doubleday, 1993): 28-36.[7] – Brand, “Spacewar: The Fanatic Life”; também Freiberger, Fire in the valey, 100-102.[8] – Chuck House, “Hewlett-Packard and Personal Computing Systems”, in Adele Goldberg, ed., Hystory of Personal Worstation (Reading, MA: Addison Wesley, 1988): 413-414; Gordon Bell, entrevista com o autor, 16 de junho de 1992.[9] – Peggy A., Landmarks in Digital Computing: a Smithsonian Pictorial History(Whashington; DC: Smithosian Press, 1994).[10] – Chung Tung, “The Personal Computer: a Fully Programmable Pocket Calculator”, Hewlette-Packard Journal (1974).[11] – Gordon E. Moore, “Progress in Digital Integrated Electronics”, Prooceedings International Electron Devices Meeting (Dezembro de 1975). Robert Noyce afirma que a primeira comunicação de Moore sobre este assunto foi em 1964: “Microeletronics”, Scientific American (Setembro de 1977). Moore previu que a taxa iria duplicar em cada dois anos (1980). Verificamos, hoje, que a taxa de densidade dos chips tem vindo a duplicar cada dezoito meses.[12] – Clifford Barney, “He Started MOS From Scratch”, Electronics Week (Outubro, 1984).[13] – William Barden, How to Buy and Use Minicomputers and Microcomputers(Indianopolis: Howard Sams, 1976).[14] – Noyce e Hoff, “A History of Microprocessor Design”, American Heritage of Invention and Technology (Fall, 1994).[15] – Edward Roberts, “Exclusive, Altair 8800: The most Powerful Minicomputer Project Ever Presented”, Popular Electronics(Janeiro, 1975).[16] – Pugh et al, IBM’s 360 and Early 370 Systems (Cambridge: MIT Press, 1991).[17] – Jim Warren, “First World on a Floppy-disc Operating System”, Dr. Dobb’s Journal(Abril, 1976).