Intel 80386

Also found in: Wikipedia.

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.
References in periodicals archive ?
IBM's other major blunder consisted of failing to use the new Intel 80386 processor as soon as it was available.
These components are used in quantity on computers that incorporate the Intel 80386 and 80486 in their design.
The significance of Windows NT is that it is expected to be made available for use with computers based on microprocessors other than the Intel 80386 (386) and 80486 (486).
In 1986, the Intel 80386 processor, a full 32-bit chip, was introduced and machines built around it began to emerge.
However, the Intel 80386 and Microsoft Windows 3, now help overcome these limitations.
evaluate new software and hardware for use on IBM platforms (primarily those based on the Intel 80386 architecture);
Extremely fast PCs with Intel 80386 processors, 40 megabyte or larger hard disks and several brands of laser printer can be obtained at approximately $4,000 to $5,000 in equipment costs.
PC Magazine noted that it "set new standards for performance, architecture, sheer power and flexibility" and, as Byte noted, it "is the first LAN operating system that takes full advantage of the capabilities of the Intel 80386 processor.
Baum has deep experience in product definition; he led the Intel 80386 field product planning committee and design win programs in the Intel Crush campaigns.
The 1100/25 features a 25-megahertz (MHz) Intel 80386 chip that is enhanced with both 32-kilobyte (KB) cache memory and APACHE disk caching software for maximum processing speed.
The IBM PC version now costs $695, while versions designed to take advantage of the Intel 80386 chip cost more and ones written to work with the Intel 80387 or Weitek math coprocessor cost the most.
The heart of each computer is the Intel 80386 microprocessor, used to power most personal computers.