Intel 80386

E637382

The Intel 80386 is a 32-bit x86 microprocessor that marked a major evolution in PC computing by introducing protected mode, virtual memory support, and hardware multitasking capabilities.

All labels observed (9)

How this entity was disambiguated

Statements (57)

Predicate Object
instanceOf CPU ⓘ
microprocessor ⓘ
x86 microprocessor ⓘ
addressBusWidth 32-bit ⓘ
alsoKnownAs 80386 ⓘ
linked to: Intel 80386

Intel 386 ⓘ
linked to: Intel 80386

i386 ⓘ
linked to: Intel 80386
announcementDate 1985-10-17 ⓘ
architecture x86 ⓘ
backwardCompatibleWith Intel 80286 ⓘ
Intel 8086 ⓘ
Intel 8088 ⓘ
bitWidth 32-bit ⓘ
commercialAvailabilityYear 1986 ⓘ
compatibleWith x86 instruction set ⓘ
dataBusWidth 32-bit ⓘ
designer Intel ⓘ
linked to: Intel Corporation
enabledOperatingSystem Windows 3.x in 386 enhanced mode ⓘ
linked to: Windows 3.x
enabledOperatingSystem early 32-bit Unix variants on PCs ⓘ
early Linux kernels ⓘ
family Intel 386 family ⓘ
linked to: Intel 80386
initialClockSpeed 12 MHz ⓘ
16 MHz ⓘ
20 MHz ⓘ
introductionYear 1985 ⓘ
laterClockSpeed 25 MHz ⓘ
33 MHz ⓘ
manufacturer Intel ⓘ
linked to: Intel Corporation
market personal computers ⓘ
servers ⓘ
workstations ⓘ
maxAddressableMemory 4 GB ⓘ
notableImpact enabled advanced memory protection on PCs ⓘ
enabled preemptive multitasking on x86 platforms ⓘ
introduced 32-bit computing to mainstream x86 PCs ⓘ
notableUse IBM PC compatibles ⓘ
linked to: IBM PC compatible
packageType PGA ⓘ
predecessor Intel 80286 ⓘ
processTechnology 1 µm ⓘ
1.5 µm ⓘ
successor Intel 80486 ⓘ
supportsFeature 32-bit linear address space ⓘ
32-bit registers ⓘ
debug registers ⓘ
hardware multitasking ⓘ
new instructions for task management ⓘ
on-chip memory management unit ⓘ
paging ⓘ
privilege levels ⓘ
ring-based protection ⓘ
segmentation ⓘ
virtual memory ⓘ
supportsMode protected mode ⓘ
real mode ⓘ
virtual 8086 mode ⓘ
transistorCount 275000 ⓘ
wordSize 32-bit ⓘ

How these facts were elicited

Referenced by (33)

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

IA-32 → introducedWith → Intel 80386 ⓘ
IA-32 → introducedBy → Intel 80386 microprocessor ⓘ
linked to: Intel 80386
Intel 80486 → predecessor → Intel 80386 ⓘ
Intel 80286 → successor → Intel 80386 ⓘ
Xenix → supportedArchitecture → Intel 80386 ⓘ
Compaq LTE series → typicalCPU → Intel 80386SX ⓘ
linked to: Intel 80386
Intel 80386 → alsoKnownAs → i386 ⓘ
linked to: Intel 80386
Intel 80386 → alsoKnownAs → 80386 ⓘ
linked to: Intel 80386
Intel 80386 → alsoKnownAs → Intel 386 ⓘ
linked to: Intel 80386
Intel 80386 → family → Intel 386 family ⓘ
linked to: Intel 80386
SCO OpenServer → platform → Intel 80386 and later ⓘ
linked to: Intel 80386
SCO UNIX → platform → Intel 80386 ⓘ
FM Towns → cpu → Intel 80386 ⓘ
PC-98 → cpuFamily → Intel 80386 ⓘ
FlexOS → targetHardware → Intel 80386 ⓘ
Compaq ProLinea → typicalCPUFamily → Intel 80386 ⓘ
Windows/386 → designedForProcessor → Intel 80386 ⓘ
Compaq SystemPro → cpu → Intel 80386 ⓘ
386BSD → targetArchitecture → Intel 80386 ⓘ
4.4BSD → platform → Intel 80386 ⓘ
PS/2 → cpuUsedInSomeModels → Intel 80386 ⓘ
HP Vectra → cpuFamily → Intel 80386 ⓘ
IBM PS/2 Model 55SX → cpu → Intel 80386SX ⓘ
linked to: Intel 80386
IBM PS/2 Model 55SX → cpuFamily → Intel 386 family ⓘ
linked to: Intel 80386
IBM PS/2 Model 70 → cpuFamily → Intel 80386 ⓘ
IBM PS/2 Model 80 → cpuFamily → Intel 80386 ⓘ
IBM PS/ValuePoint → cpuFamily → Intel 386 ⓘ
linked to: Intel 80386
IBM PS/2 → cpuVariant → Intel 80386 ⓘ
EMM386.EXE → supportedProcessor → Intel 80386 ⓘ
DJGPP → runsOn → Intel 80386 or later processors ⓘ
linked to: Intel 80386
DOS/4GW → compatibleWith → Intel 80386 or later processors ⓘ
linked to: Intel 80386