VAX

E183315

computer architecture minicomputer line

VAX is a line of 32-bit minicomputers and their associated architecture developed by Digital Equipment Corporation, widely used in the late 20th century for time-sharing and scientific computing.

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All labels observed (14)

Label	Occurrences
VAX canonical	11
VAX architecture	5
VAX-11/780	2
VAX 8600	1
VAX 8800	1
VAX computer architecture	1
VAX instruction set architecture	1
VAX minicomputers	1
VAX-11	1
VAX-11/730	1
VAX-11/750	1
VAXserver	1
VAXstation	1
vax (historical)	1

Statements (50)

Predicate	Object
instanceOf	computer architecture ⓘ minicomputer line ⓘ
abbreviationOf	Virtual Address eXtension ⓘ
addressSpaceSize	32-bit virtual address space ⓘ
architectureType	CISC ⓘ
compatibleWith	PDP-11 ⓘ surface form: PDP-11 (at instruction-set level via compatibility mode)
countryOfOrigin	United States of America ⓘ surface form: United States
declineReason	competition from RISC systems ⓘ shift to 64-bit architectures ⓘ
designedFor	business data processing ⓘ engineering computing ⓘ scientific computing ⓘ time-sharing ⓘ
developer	Digital Equipment Corporation ⓘ
firstModel	VAX self-linksurface differs ⓘ surface form: VAX-11/780
hasCompatibilityMode	PDP-11 compatibility mode ⓘ
hasModel	MicroVAX ⓘ VAX self-linksurface differs ⓘ surface form: VAX 8600 VAX self-linksurface differs ⓘ surface form: VAX 8800 VAX self-linksurface differs ⓘ surface form: VAX-11/730 VAX self-linksurface differs ⓘ surface form: VAX-11/750 VAX self-linksurface differs ⓘ surface form: VAXserver VAX self-linksurface differs ⓘ surface form: VAXstation
influenced	OpenVMS design ⓘ later CISC architectures ⓘ
instructionSetName	VAX self-linksurface differs ⓘ surface form: VAX instruction set architecture
introductionYear	1977 ⓘ
manufacturer	Digital Equipment Corporation ⓘ
marketedAs	mainframe alternative ⓘ
marketSegment	minicomputer market ⓘ
notableFeature	large number of instructions ⓘ orthogonal instruction set ⓘ rich addressing modes ⓘ
operatingSystem	BSD ⓘ surface form: BSD UNIX VMS operating system ⓘ surface form: OpenVMS UNIX variants ⓘ Ultrix ⓘ VMS ⓘ
popularPeriod	1980s ⓘ early 1990s ⓘ late 1970s ⓘ
successorTo	PDP-11 ⓘ surface form: PDP-11 family
supports	memory management unit ⓘ virtual address translation ⓘ virtual memory ⓘ
usedIn	academic institutions ⓘ commercial enterprises ⓘ government organizations ⓘ research laboratories ⓘ
wordLength	32-bit ⓘ

Referenced by (29)

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

Unix → laterPlatform → VAX ⓘ

Digital Equipment Corporation → notableProduct → VAX ⓘ

Digital Equipment Corporation → processorArchitectureDeveloped → VAX ⓘ

this entity surface form: VAX architecture

OpenBSD → supportsPlatform → VAX ⓘ

this entity surface form: vax (historical)

NetBSD → supports → VAX ⓘ

this entity surface form: VAX architecture

VAX → firstModel → VAX self-linksurface differs ⓘ

this entity surface form: VAX-11/780

VAX → instructionSetName → VAX self-linksurface differs ⓘ

this entity surface form: VAX instruction set architecture