Cessor> (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 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-speCifiCoperating 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)