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History - PowerPoint PPT Presentation


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History. Generation 0 Charles Babbage (1792-1871) Analytical Engine purely mechanical Ada Lovelace – first programmer. Generation 1 tubes WW II ’45-’55 Aiken – Harvard von Neumann – Princeton Zuse – Germany Eckert & Mauchley – U Penn. Generation 2 transistor ’55-’65

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history
History
  • Generation 0
    • Charles Babbage (1792-1871)
    • Analytical Engine
    • purely mechanical
    • Ada Lovelace – first programmer
slide2
Generation 1
    • tubes
    • WW II
    • ’45-’55
    • Aiken – Harvard
    • von Neumann – Princeton
    • Zuse – Germany
    • Eckert & Mauchley – U Penn
slide3
Generation 2
    • transistor
    • ’55-’65
    • mainframes, punched cards, operators
    • batch systems
      • cards  1401  tape  7094  tape  1401  printer
slide4
Generation 3
    • ICs
    • ’65 – ’80
    • System/360 “family” of systems
    • Multiprogramming – multiple programs in memory at the same time sharing the CPU
    • SPOOL – simultaneous peripheral operation online
    • Timesharing – variant of multiprogramming for terminal and batch jobs
slide5
Gen 3 cont’d
    • MULTICS
      • Computer utility idea (kind of like internet servers)
      • More ambitious than hardware could support
      • MULTICS + PDP7 + Ken Thompson = Unix
      • Unix variants:
        • System V
        • BSD
      • IEEE POSIX
      • Now Linux from Linus Torvalds
slide6
Gen 4 – 1980 to present
    • VLSI
    • 8080 CP/M also Z80
    • Apple I and II
    • 8088 + MS-DOS (from Seattle Comp. Prod.)
    • Apple Lisa (Xerox Star)
    • Apple Mac
    • Windows 3.1, 95, 98, NT (designed by David Cutler from DEC VAX/VMS), 2000, XP
    • XWindows on Unix and Linux
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