Intel 80286

Intel 80286
The Intel 802861 also marketed as the iAPX 2862 and often called Intel 286 is a 16-bit microprocessor that was introduced on 1 February 1982 It was the first 8086 based CPU with separate, non-multiplexed, address and data buses and also the first with memory management and wide protection abilities The 80286 used approximately 134,000 transistors in its original nMOS HMOS incarnation and, just like the contemporary 80186,3 it could correctly execute most software written for the earlier Intel 8086 and 8088 processors4
The 80286 was employed for the IBM PC/AT, introduced in 1984, and then widely used in most PC/AT compatible computers until the early 1990s Although now long since obsolete for use in personal computers, 80286 based processors are still widelycitation needed used in embedded microcontroller applications5
Contents
1 History and performance
2 Architecture
3 Features
31 Protected mode
32 OS support
4 See also
5 References
6 External links
History and performance
AMD 80286 16 MHz version
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