Intel 80286

E167913

The Intel 80286 is a 16-bit microprocessor introduced in the early 1980s that added protected mode and advanced memory management features, enabling more powerful multitasking operating systems on IBM PC/AT–class computers.

All labels observed (3)

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf 16-bit microprocessor ⓘ
microprocessor ⓘ
x86 microprocessor ⓘ
addressBusWidth 24-bit ⓘ
application advanced business software of the 1980s ⓘ
multitasking operating systems ⓘ
architecture x86 ⓘ
backwardCompatibility binary compatible with Intel 8086 in real mode ⓘ
clockSpeedRange 6 MHz to 25 MHz ⓘ
dataBusWidth 16-bit ⓘ
designer Intel ⓘ
linked to: Intel Corporation
influenced design of later x86 processors such as Intel 80386 ⓘ
initialClockSpeed 6 MHz ⓘ
introduced 1982 ⓘ
introductionContext successor to Intel 8086 ⓘ
manufacturer Intel ⓘ
linked to: Intel Corporation
marketSegment business computers ⓘ
personal computers ⓘ
maxClockSpeed 25 MHz ⓘ
maxPhysicalAddressSpace 16 MB ⓘ
notableFeature advanced memory management ⓘ
hardware-based memory protection ⓘ
improved performance over Intel 8086 ⓘ
privilege levels ⓘ
protected mode ⓘ
segmented memory with descriptors ⓘ
support for multitasking operating systems ⓘ
task state segments ⓘ
notableLimitation cannot easily return from protected mode to real mode via software ⓘ
numericCoprocessorSupport Intel 80287 ⓘ
linked to: x87 FPU
packageType 68-pin PGA ⓘ
68-pin PLCC ⓘ
powerSupplyVoltage 5 V ⓘ
predecessor Intel 8086 ⓘ
Intel 8088 ⓘ
processTechnology 1.5 µm ⓘ
protectedModeAddressSpace 16 MB ⓘ
realModeAddressSpace 1 MB ⓘ
successor Intel 80386 ⓘ
supportsMode protected mode ⓘ
real mode ⓘ
supportsPaging no ⓘ
supportsVirtualMemory yes (via segmentation) ⓘ
transistorCount 134000 ⓘ
usedIn IBM PC/AT ⓘ
linked to: IBM PC AT

IBM PC/AT–class computers ⓘ
linked to: IBM PC AT
usedWithCoprocessor Intel 80287 ⓘ
linked to: x87 FPU
wordSize 16-bit ⓘ

How these facts were elicited

Referenced by (25)

Full triples — surface form annotated when it differs from this entity's canonical label.

Intel 8086 → successor → Intel 80286 ⓘ
Intel 8088 → successor → Intel 80286 ⓘ
IBM PC AT → cpu → Intel 80286 ⓘ
Intel 80186 → successor → Intel 80286 ⓘ
Xenix → supportedArchitecture → Intel 80286 ⓘ
Concurrent DOS → runsOn → Intel 80286 ⓘ
Windows 2.0 → runsOn → Intel 80286 architecture ⓘ
linked to: Intel 80286
Compaq LTE series → typicalCPU → Intel 80286 ⓘ
Intel 80386 → predecessor → Intel 80286 ⓘ
Intel 80386 → backwardCompatibleWith → Intel 80286 ⓘ
IBM AT → cpu → Intel 80286 ⓘ
GEM → platform → Intel 80286 ⓘ
PL/M → designedFor → Intel 80286 ⓘ
subject linked to: PL/M programming language
IBM 5170 → cpu → Intel 80286 ⓘ
Sega TeraDrive → cpu → Intel 80286 ⓘ
Tandy 1000 series (compatible PSG) → typicalCPU → Intel 80286 (later models) ⓘ
linked to: Intel 80286
PC-98 → cpuFamily → Intel 80286 ⓘ
FlexOS → targetHardware → Intel 80286 ⓘ
PS/2 → cpuUsedInSomeModels → Intel 80286 ⓘ
HP Vectra → cpuFamily → Intel 80286 ⓘ
IBM PS/2 Model 50 → cpuFamily → Intel 80286 ⓘ
IBM PS/2 Model 60 → cpu → Intel 80286 ⓘ
IBM PS/2 → cpuVariant → Intel 80286 ⓘ