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