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VAX

VAX (an acronym for virtual address extension) is a series of computers featuring a 32-bit instruction set architecture (ISA) and virtual memory that was developed and sold by Digital Equipment Corporation (DEC) in the late 20th century. The VAX-11/780, introduced October 25, 1977, was the first of a range of popular and influential computers…

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Bits
32-bit
Branching
Condition code
Design
CISC
Designer
Digital Equipment Corporation
Encoding
Variable (1 to 56 bytes)
Endianness
Little

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Overview

Description

Name

Instruction set

Operating systems

History

VAX-based systems

Advanced semantic analysis

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Map overview Semantic statistics

VAX

Nodes122
Edges121
Triples168
Avg. degree1.98
Density0.016393
Components1

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VAX

Top relations

related to Clones · 39
VAX → Beijing, BSD Unix, Computing Technology, Czechoslovakia, DEMOS, Examples, Institute, KFKI, MicroVAX II, Military-specification MIL VAX, MOS VP, MOS VP RV, Norden Systems, North China Institute, Physics, Robotron, Slovakia, SM, SM-1702, SM-1705
related to history · 19
VAX → Bill Strecker, Carnegie Mellon University, CPU, DEC, DEC's, For, Gordon Bell's, IBM System/360, It, Like PDP-11, Many, MIPS, October, PDP-11's, System/360, The, VAX MIPS, VAX-11/780, VMS
related to Operating systems · 19
VAX → Alpha, By, Digital, Digital's VAX/VMS, During, OpenVMS, PDP-11, POSIX, TCSEC A1, The, ULTRIX, VAX Security Kernel, VAXcluster, Virtual Machine Monitor, Virtual Memory System, VMM, VMS, X/Open, XPG4
related to VAX-based systems · 12
VAX → Alpha, In, MicroVAX, October, The, The MicroVAX, VAX-11, VAX-11/780, VAX-based, VAXft, VAXserver, VAXstation
related to Description · 11
VAX → All, CISC, DEC, Digital Equipment Corporation, PDP-11, The, The VAX, The VAX ISA, VAX-11, VAX/VMS, VAXstation
related to Canceled systems · 9
VAX → Argonaut, BVAX, Canceled, ECL, ECL-based VAX, Gemini, It, LSI-based Scorpio, Raven
related to Further reading · 8
VAX → Bloomberg News, Coy, Icon, January, Peter, Retrieved January, VAX Minicomputer, Who Remembers
related to Name · 8
VAX → CISC, Early, Later, PDP-11, PDP-11's, Prime Computer, The, VAX-11
related to Instruction set · 7
VAX → In, On, One, The VAX, These, Using, When
related to Virtual memory map · 7
VAX → Each, For VMS, P0, P1, S0, S1, The VAX

Important terminology Word statistics

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Important terminology

architecture vax-11 systems dec memory microvax pdp-11 models 780 set early operating instruction virtual introduced alpha cpu system vms machine

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
VAXBits32-bit1.00infobox
VAXBranchingCondition code1.00infobox
VAXDesignCISC1.00infobox
VAXDesignerDigital Equipment Corporation1.00infobox
VAXEncodingVariable (1 to 56 bytes)1.00infobox
VAXEndiannessLittle1.00infobox
VAXExtensionsPDP-11 compatibility mode, VAX Vector Extensions, VAX Virtualization Extensions1.00infobox
VAXFloating-pointnot present, uses the GPR1.00infobox
VAXGeneral-purpose16 × 32-bit1.00infobox
VAXIntroduced1977; 49 years ago (1977)1.00infobox
VAXOpenNo1.00infobox
VAXPage size512 bytes1.00infobox
VAXPredecessorPDP-111.00infobox
VAXSuccessorAlpha1.00infobox
VAXTypeRegister–register1.00infobox
VAXTypeRegister–memory1.00infobox
VAXTypeMemory–memory1.00infobox
VAXVector16 × 4096-bit (64 elements of 64 bits each)1.00infobox

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