Intel 80386

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Intel 80386

(Commonly abbreviated to "386", trademark "Intel386") The successor to the Intel 80286 microprocessor. It was the first Intel processor with 32-bit data and address busses. It can address four gigabytes (2^32 bytes) of memory; however, 16 megabytes is a typical maximum in IBM PCs. The 386 allows multiple application programs to run at the same time (when running under 386-specific operating systems) using "protected mode".

The first IBM compatible to use the 386 was the Compaq 386, before IBM used it in high-end models of their PS/2 series. It is also used in HP's RS series and many others.

It does not require special EMS memory boards to expand MS-DOS memory limits. With the 386, the EMS standard can be simulated in normal extended memory, and many DOS add-ons provide this "Expanded Memory Manager" feature.

See also Intel 80386SX, BSD386.
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References in periodicals archive ?
Based on Intel's 80386SX microprocessor running at 20MHz, the PowerMate SX/20c is ideal for the user running Windows in a networking environment, while its power, graphics performance and expandability allow it to work equally well as a low-cost stand-alone workstation.
The unit's 7.7 lb package, including batteries, features a full-size keyboard, 20 megahertz Intel 80386SX microprocessor along with a standard 60 megabyte hard drive; 2 megabytes of memory, expandable up to 18 megabytes; and a 1.44 megabyte 3.5-in diskette drive.