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Mikroprocesory: história

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Verzia z 08:57, 15. jún 2021, ktorú vytvoril Balogh (diskusia | príspevky)

The first microprocessors were designed and manufactured in the 1970s. Designers predominantly used MOSFET transistors with pMOS logic in the early 1970s, and then predominantly used NMOS logic from the mid-1970s. They also experimented with various word lengths. Early on, 4-bit processors were common (e.g. Intel 4004). Later in the decade, 8-bit processors such as the MOS 6502 superseded the 4-bit chips. 16-bit processors emerged by the decade's end. Some unusual word lengths were tried, including 12-bit and 20-bit. Intel's 4004 is widely regarded as the first commercial microprocessor.

In the 1980s, 16-bit and 32-bit microprocessors were common among new designs, and CMOS technology overtook NMOS. Transistor count increased dramatically during the decade.

Key home computers which remained popular for much of the 1980s predominantly use processors developed in the 1970s. Versions of the MOS Technology 6502, first released in 1975, power the Commodore 64, Apple IIe, BBC Micro, and Atari 8-bit family. The Zilog Z80 (1976) is at the core of the ZX Spectrum.

The IBM PC launched in 1981 with an Intel 8088. It was not until Intel's 80286 (used in the 1984 IBM PC/AT), and later the 80386, that processors designed in the 1980s drove the computers of the 1980s. These chips had higher clock speeds and 32-bit memory access. The end of the decade saw the launch of the Intel 80486, the first personal computer CPU with on-chip floating point support instead of as an optional coprocessor.

A mid-1980s generation of GUI-driven home computers is based around the Motorola 68000: Macintosh (1984), Atari ST (1985), Amiga (1985), and X68000 (1987). Even the Sega Genesis game console, released in 1988-89, uses a 68000 as the main CPU and a Z80 for sound.

The 32-bit microprocessor dominated the consumer market in the 1990s. Processor clock speeds increased by more than tenfold between 1990 and 1999, and 64-bit processors began to emerge later in the decade. In the 1990s, microprocessors no longer used the same clock speed for the processor and the RAM. Processors began to have a front-side bus (FSB) clock speed used in communication with RAM and other components. Typically, the processor itself ran at a clock speed that was a multiple of the FSB clock speed. Intel's Pentium III, for example, had an internal clock speed of 450–600 MHz and an FSB speed of 100–133 MHz. Only the processor's internal clock speed is shown here.

64-bit processors became mainstream in the 2000s. Microprocessor clock speeds reached a ceiling because of the heat dissipation barrier. Instead of implementing expensive and impractical cooling systems, manufacturers turned to parallel computing in the form of the multi-core processor. Overclocking had its roots in the 1990s, but came into its own in the 2000s. Off-the-shelf cooling systems designed for overclocked processors became common, and the gaming PC had its advent as well. Over the decade, transistor counts increased by about an order of magnitude, a trend continued from previous decades. Process sizes decreased about fourfold, from 180 nm to 45 nm.


Nasledujúca tabuľka je prevzatá z https://en.wikipedia.org/wiki/Microprocessor_chronology

Date Name Developer Max clock
(first version)
Word size
(bits)
Process Chips Transistors MOSFET Ref.
1971 4004 Intel 740 kHz 4 10 μm 1 2,250 pMOS [1]
1972 8008 Intel 500 kHz 8 10 μm 1 3,500 pMOS
1974 8080 Intel 2 MHz 8 6 μm 1 6,000 NMOS
1976 Z-80 Zilog 2.5 MHz 8 4 μm 1 8,500 NMOS
1977 8085 Intel 3.0 MHz 8 3 μm 1 6 500
1978 8086 Intel 5 MHz 16 3 μm 1 29 000
1979 8088 Intel 5 MHz 8/16[2] 3 μm 1 29 000 NMOS (HMOS)
1979 68000 Motorola 8 MHz 16/32[3] 3.5 μm 1 68,000 NMOS (HMOS) [4]
1982 80286 Intel 6 MHz 16 1.5 μm 134,000
1983 RISC-II UC Berkeley 3 MHz - 3 μm 40,760 (NMOS)
1983 MIPS[5] Stanford University 2 MHz 32 3 μm 25,000
1985 80386 Intel 16–40 MHz 32 1.5 μm 275,000
1987 ARM2 Acorn 8 MHz 32 2 μm 25,000[6]
1988 80386SX Intel 12–33 MHz 16/32 - -
1989 80486 Intel 25 MHz 32 1 μm 1,180,000
1993 Pentium Intel 60–66 MHz 32 800 nm 3.1
1997 Pentium II Intel 233–300 MHz 32 350 nm 7.5
1999 Pentium III Intel 450–600 MHz 32 250 nm 9.5
2000 Pentium 4 Intel 1.3–2 GHz 180–130 nm 42 1 / 1
2003 Pentium M Intel 0.9–1.7 GHz 130–90 nm 77 1 / 1
2006 Core Duo Intel 1.1–2.33 GHz 90–65 nm 151 2 / 1
2008 Atom Intel 0.8–1.6 GHz 65–45 nm 47 1 / 1
2008 Core i7 Intel 2.66–3.2 GHz 45–32 nm 730 2, 4, 6 / 1
2011 Intel "Sandy Bridge" Intel 1.6–3.4 GHz 32 nm 995[7] 2, 4 / 1 (1,) 2
2013 Intel "Haswell" Intel 1.9–4.4 GHz 22 nm 1400 4 / 1 2
2019 z15 IBM 5.2 GHz 14 nm 9200 12 / 1 2

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[1]
  1. 1,0 1,1 Belzer, J., Holzman, A. G., Kent, A.: Encyclopedia of Computer Science and Technology: Volume 10 - Linear and Matrix Algebra to Microorganisms: Computer-Assisted Identification. CRC Press, 1978.
  2. The Intel 8088 had an 8-bit external data bus, but internally used a 16-bit architecture.
  3. The Motorola 68000 had a 16-bit external data bus, but internally used 32-bit registers.
  4. Chip Hall of Fame: Motorola MC68000 Microprocessor. IEEE Spectrum.
  5. Šablóna:Cite journal
  6. Šablóna:Cite journal
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