Intel 80386 processor

Abstract

Also known as the i386, this was a 32 bit processor chip introduced by Intel in 1985. The first versions had 275,000 transistors and were used as the central processing unit (CPU) of many workstations and high end personal computers of the time. As the original implementation of 32-bit extension of the 8086 architecture, the 80386 instruction set, programming model, and binary encoding are still the common denominator for all 32-bit x86 processors. The first PC to make use of the 80386 was designed and manufactured by Compaq Computer. This was the first time an x86 innovation was introduced by a company other than IBM.