(Commonly abbreviated to "386", trademark "Intel386") The successor to the Intel 80286microprocessor.It was the first Intel processor with 32-bit data and address busses.It can address four gigabytes (2^32 bytes) of memoryhowever, 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)