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`Definition of microprocessor | PCMag
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`A central processing unit (CPU) onasingle chip (integrated circuit). The microprocessor
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`term originated in the 1970s, but today, all CPUs are microprocessors,whetherin
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`desktops,laptops, servers, tablets or smartphones (see multicore).
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`CPU, MPU and MP = Processor
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`The terms central processing unit (CPU), microprocessorunit (MPU) and
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`microprocessor(MP) are synonymous. The MP acronym is sometimesspelled “uP” or
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`"uP" (lower case "m"in Greekis a "p!").
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`https:/Awww.pcmag.com/encyclopedia/term/microprocessor
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`Definition of microprocessor | PCMag
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`Home > Encyclopedia > M
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`0-9
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`A central processing unit (CPU) onasingle chip (integrated circuit). The microprocessor
`
`term originated in the 1970s, but today, all CPUs are microprocessors,whetherin
`
`desktops,laptops, servers, tablets or smartphones (see multicore).
`
`CPU, MPU and MP = Processor
`
`The terms central processing unit (CPU), microprocessorunit (MPU) and
`
`microprocessor(MP) are synonymous. The MP acronym is sometimesspelled “uP” or
`
`"uP" (lower case "m"in Greekis a "p!").
`
`https:/Awww.pcmag.com/encyclopedia/term/microprocessor
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`Definition of microprocessor | PCMag
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`From 8-Bit to 64-Bit
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`The earliest microprocessors were created by Texas Instruments,Intel and Scotland-
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`based Pico Electronics, but which wasfirst has been debated. First-generation 8-bit
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`microprocessorfamilies were Intel's 8080, Zilog's Z80, Motorola's 6800 and Rockwell's
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`6502.
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`Today, the 32-bit and 64-bit microprocessors found in workstations and serversare x86,
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`POWER and SPARC,while ARM leads the mobile market. The chips usedin toys,
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`appliances, vehicles and myriad other productsare 8-, 16- and 32-bit microcontrollers,
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`whichinclude the microprocessor(see microcontroller). All togetherbillions of
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`microprocessors are made and shipped each year. See chip, embeddedsystem, process
`technology, 16-bit computing, 32-bit computing and 64-bit computing.
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`https:/Awww.pcmag.com/encyclopedia/term/microprocessor
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`
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`EXECUTION Definition of microprocessor | PCMag
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`as -
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`|R
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`e H a
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`12/14/23, 2:30 PM
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`_—
`aereerne
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`iceinfeiets=aeERPERESTEEESGae
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`Microcode
`
`PREFETCHUNIT |
`a
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`areca Queue
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`Segment
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`
`The 386 Microprocessor
`No technologyis more incredible than the microprocessor. This older 386 chip
`contains a mere 275,000transistors, and someslight detail can be seen.
`Contemporarychipsat this magnification show upas a seaof gray. See chip. (Image
`courtesy ofIntel Corporation.)
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`Definition of microprocessor | PCMag
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`Intel 4004
`2,J00 Transistors
`
`Intel 8008
`3,500 Transistors
`
`intel 8080
`4,000 Transistors
`
`Zilog Z80
`6,000 Transistors
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`Motorola 6800
`6,500 Transistors
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`MOS Technologies 6502
`9,000 Transistors
`
`Intel 8086
`29,000 Transistors
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`Intel 8088
`29.000 Transistors
`
`Motorola 68000
`63,000 Transistors
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`Intel 286
`134,000 Transistors
`
`Intel 386
`275,000 Transistors
`
`Intel 486
`1,200,000 Transistors
`
`IBM/Motorola PowerPC 601
`2,800,000 Transistors
`
`Intel Pentium
`3,100,000 Transistors
`
`Intel Pentium Il
`7,500,000 Transistors
`
`Intel Pentium Ill
`9,500,000 Transistors
`
`Intel Pentium 4
`47,000,000 Transistors
`
`IBM POWER4+
`180,000,000 Transistors
`
`Intel ltanitiim %
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`
`
`FEELS0 PLC
`
`220,000,000 Transistors
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`Intel Itanium 2
`597,000,000 Transistors
`
`IBM POWERG
`790,000,000 Transistors
`
`SPARC64 XIfx
`3, 750,000,000 Transistors
`
`Intel Xeon E7
`4.300,000,000 Transistors
`
`Intel Xeon Phi
`8,000,000,000 Transistors
`
`12/14/23, 2:30 PM Definition of microprocessor | PCMag
`
`AMD Epyc
`79,200,000,000 Transistors
`
`From Two Thousandto NineteenBillion
`This is only a sampling of the numberoftransistors on a chip. Other brands have
`similar transistor counts.
`
`ADVERTISEMENT
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`Definition of microprocessor | PCMag
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`BY MICHAELJ. MILLER
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`Definition of microprocessor | PCMag
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`Definition of microprocessor | PCMag
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