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  2. Intel 80286 - Wikipedia

    en.wikipedia.org/wiki/Intel_80286

    The Intel 80286 [4] (also marketed as the iAPX 286 [5] and often called Intel 286) is a 16-bit microprocessor that was introduced on February 1, 1982. It was the first 8086-based CPU with separate, non-multiplexed address and data buses and also the first with memory management and wide protection abilities.

  3. List of Intel processors - Wikipedia

    en.wikipedia.org/wiki/List_of_Intel_processors

    2.5.5 80286. 2.6 32-bit processors: the non-x86 microprocessors. ... This generational list of Intel processors attempts to present all of Intel's processors from the ...

  4. i386 - Wikipedia

    en.wikipedia.org/wiki/I386

    The predecessor of the 80386 was the Intel 80286, a 16-bit processor with a segment-based memory management and protection system. The 80386 added a three-stage instruction pipeline which it brought up to total of 6-stage instruction pipeline, extended the architecture from 16-bits to 32-bits , and added an on-chip memory management unit . [ 21 ]

  5. LOADALL - Wikipedia

    en.wikipedia.org/wiki/LOADALL

    LOADALL is the common name for two different undocumented machine instructions of Intel 80286 and Intel 80386 processors, which allow access to areas of the internal processor state that are normally outside of the IA-32 API scope, like descriptor cache registers.

  6. x86 instruction listings - Wikipedia

    en.wikipedia.org/wiki/X86_instruction_listings

    Below is the full 8086/8088 instruction set of Intel (81 instructions total). [2] ... The new instructions added in 80286 add support for x86 protected mode.

  7. Real mode - Wikipedia

    en.wikipedia.org/wiki/Real_mode

    When IBM used the 80286 in their IBM PC/AT, they solved this problem by including a software-settable gate to enable or disable (force to zero) the A20 address line, between the A20 pin on the 80286 and the system bus; this is known as Gate-A20 (the A20 gate), and it is still implemented in PC chipsets to this day. Most versions of the HIMEM ...

  8. Olivetti M28 - Wikipedia

    en.wikipedia.org/wiki/Olivetti_M28

    The Olivetti M28 personal computer, introduced in 1986, was the successor to the Olivetti M24.It had an Intel 80286 CPU running at 8 MHz and 512 KB (expandable to 1024 KB on the motherboard) of RAM, featuring a 5.25" floppy drive and a 20 MB hard drive. [1]

  9. NEAT chipset - Wikipedia

    en.wikipedia.org/wiki/NEAT_chipset

    Motherboard with NEAT chipset for the Intel 80286. The NEAT chipset (the acronym standing for "New Enhanced AT") is a 4 chip VLSI implementation (including the 82C206 IPC) of the control logic used in the IBM PC compatible PC/AT computers. It consists of the 82C211 CPU/Bus controller, 82C212 Page/Interleave and EMS Memory controller, 82C215 ...

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