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Intel 80386

   Also found in: Wikipedia 0.02 sec.
(processor)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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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.
This market segment includes the ubiquitous 8-bit microprocessor such as the Intel 8051 clones and the Motorola 68HC11, 16-bit microprocessor such as the Intel 80186 and the Motorola 68HC16 and many 32-bit processors such as the Intel 80386 and Motorola 68xxx series and numerous 32-bit embedded RISC microprocessors, including the MPS, SuperH, PowerPC and arm architectures from Silicon Graphics, Hitachi, IBM and Advanced RISC machines, respectively.
This market segment includes the ubiquitous 8-bit microprocessor such as the Intel 8051 clones and the Motorola 68HC11, 16-bit microprocessor such as the Intel 80186 and the Motorola 68HC16 and many 32-bit processors such as the Intel 80386 and Motorola 68xxx series and numerous 32-bit embedded RISC microprocessors, including the MPS, SuperH, PowerPC and arm architectures from Silicon Graphics, Hitachi, IBM and Advanced RISC machines, respectively.
 
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