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A20 line and Intel 80486

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between A20 line and Intel 80486

A20 line vs. Intel 80486

The A20, or addressing line 20, is one of the electrical lines that make up the system bus of an x86-based computer system. The Intel 80486, also known as the i486 or 486, is a higher performance follow-up to the Intel 80386 microprocessor.

Similarities between A20 line and Intel 80486

A20 line and Intel 80486 have 12 things in common (in Unionpedia): Address bus, BIOS, IBM, Intel 80386, Intel 8086, Motherboard, MS-DOS, Pentium, Protected mode, Real mode, Virtual 8086 mode, X86.

Address bus

An address bus is a computer bus (a series of lines connecting two or more devices) that is used to specify a physical address.

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BIOS

BIOS (an acronym for Basic Input/Output System and also known as the System BIOS, ROM BIOS or PC BIOS) is non-volatile firmware used to perform hardware initialization during the booting process (power-on startup), and to provide runtime services for operating systems and programs.

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IBM

The International Business Machines Corporation (IBM) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries.

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Intel 80386

The Intel 80386, also known as i386 or just 386, is a 32-bit microprocessor introduced in 1985.

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Intel 8086

The 8086 (also called iAPX 86) is a 16-bit microprocessor chip designed by Intel between early 1976 and mid-1978, when it was released.

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Motherboard

A motherboard (sometimes alternatively known as the mainboard, system board, baseboard, planar board or logic board, or colloquially, a mobo) is the main printed circuit board (PCB) found in general purpose microcomputers and other expandable systems.

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MS-DOS

MS-DOS (acronym for Microsoft Disk Operating System) is an operating system for x86-based personal computers mostly developed by Microsoft.

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Pentium

Pentium is a brand used for a series of x86 architecture-compatible microprocessors produced by Intel since 1993.

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Protected mode

In computing, protected mode, also called protected virtual address mode, is an operational mode of x86-compatible central processing units (CPUs).

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Real mode

Real mode, also called real address mode, is an operating mode of all x86-compatible CPUs.

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Virtual 8086 mode

In the 80386 microprocessor and later, virtual 8086 mode (also called virtual real mode, V86-mode or VM86) allows the execution of real mode applications that are incapable of running directly in protected mode while the processor is running a protected mode operating system.

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X86

x86 is a family of backward-compatible instruction set architectures based on the Intel 8086 CPU and its Intel 8088 variant.

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The list above answers the following questions

A20 line and Intel 80486 Comparison

A20 line has 43 relations, while Intel 80486 has 95. As they have in common 12, the Jaccard index is 8.70% = 12 / (43 + 95).

References

This article shows the relationship between A20 line and Intel 80486. To access each article from which the information was extracted, please visit:

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