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Processors

minicomputers
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1965 DEC PDP-8

ALU used late 1960s through the early 1980s
4bit slice arithmetic logic unit (ALU): 74181
late 60, early 70s minicomputer examples include: NOVA, PDP-11, Xerox Alto, Wang 2200, VAX-11/780

microcomputer
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1971 4004 0.7MHz 4bit  INTEL/Busicom (build to simplify the special purpose LSI chipset in the Unicom 141*)
1972 8008 0.2MHz 8bit  INTEL (SacState[1] Bill Pentz)
1974 6800 1MHz   8bit  MOTOROLA (Altair 680, Tektronix 4051, SWTPC 6800)
1974 8080 2MHz   8bit  INTEL (Altair 8800)
1975 6502 1MHz   8bit  MOS (Atari 2600, Commodore VIC-20, Apple II, Commodore PET)
1976 Z80  2.5MHz 8bit  ZILOG (TRS-80,Osborne 1, Xerox 820)
1977 6875 2MHz   8bit  MOTOROLA
1978 8086 5MHz   16bit INTEL (IBM PS/2 models 25, Tandy 1000 SL&RL-series, Mycron 2000)
1979 8088 5MHz   16bit INTEL

[1]SacState: http://www.digibarn.com/stories/bill-pentz-story/index.html

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Page last modified on March 04, 2013, at 06:11 AM