Intel 80386
386
80386
i386
<processor> (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 {buss}es. 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}.
(1995-02-21)