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Intel 80286. Max. CPU clock rate. The Intel 80286[4] (also marketed as the iAPX 286[5] and often called Intel 286) is a 16-bit microprocessor that was introduced on February 1, 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 predecessor of the 80386 was the Intel 80286, a 16-bit processor with a segment-based memory management and protection system. The 80386 added a three-stage instruction pipeline which it brought up to total of 6-stage instruction pipeline, extended the architecture from 16-bits to 32-bits, and added an on-chip memory management unit. [21]
Windows 3.0 actually had several modes: "real mode", "standard mode" and "386-enhanced mode"; the latter required some of the virtualization features of the 80386 processor, and thus would not run on an 80286. Windows 3.1 removed support for real mode, and it was the first mainstream operating environment which required at least an 80286 processor.
Protected mode was first added to the x86 architecture in 1982, [6] with the release of Intel 's 80286 (286) processor, and later extended with the release of the 80386 (386) in 1985. [7] Due to the enhancements added by protected mode, it has become widely adopted and has become the foundation for all subsequent enhancements to the x86 (IA-32 ...
x86 memory segmentation. The Intel x86 computer instruction set architecture has supported memory segmentation since the original Intel 8086 in 1978. It allows programs to address more than 64 KB (65,536 bytes) of memory, the limit in earlier 80xx processors. In 1982, the Intel 80286 added support for virtual memory and memory protection; the ...
In the 80386 microprocessor and later, virtual 8086 mode (also called virtual real mode, V86-mode, or VM86) allows the execution of real mode applications that are incapable of running directly in protected mode while the processor is running a protected mode operating system. It is a hardware virtualization technique that allowed multiple 8086 ...
The Intel 8088 (" eighty-eighty-eight ", also called iAPX 88) [2][3][4] microprocessor is a variant of the Intel 8086. Introduced on June 1, 1979, [5][6][7][8] the 8088 has an eight-bit external data bus instead of the 16-bit bus of the 8086. The 16-bit registers and the one megabyte address range are unchanged, however.
45 nm, low-power, in-order microarchitecture for use in Atom processors. Saltwell: 32 nm shrink of the Bonnell microarchitecture. Silvermont. 22 nm, out-of-order microarchitecture for use in Atom processors, released on May 6, 2013. Airmont: 14 nm shrink of the Silvermont microarchitecture. Goldmont.