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VAX-11, the Glossary

The VAX-11 is a discontinued family of 32-bit superminicomputers, running the Virtual Address eXtension (VAX) instruction set architecture (ISA), developed and manufactured by Digital Equipment Corporation (DEC).^[1]

41 relations: AMD Am2900, Asymmetric multiprocessing, Avie Tevanian, Bipolar junction transistor, Bit slicing, Carry flag, Central processing unit, Computer History Museum, Data General, DECtape, Digital Equipment Corporation, Error correction code, Gate array, George H. Goble, Hewlett-Packard, Indiana University School of Informatics, Instruction set architecture, Interrupt priority level, Living Computers: Museum + Labs, Mach (kernel), Massbus, MicroVAX, MOSFET, Negative flag, OpenVMS, Overflow flag, PDP-11, Robotron K 1840, Schottky transistor, Superminicomputer, Synchronous Backplane Interconnect, Transistor–transistor logic, Unibus, Unix, User space and kernel space, VAX, VAX 8000, VAX Unit of Performance, VMScluster, Zero flag, 32-bit computing.
Computer-related introductions in 1977
Computers using bit-slice designs
DEC minicomputers

AMD Am2900

Am2900 is a family of integrated circuits (ICs) created in 1975 by Advanced Micro Devices (AMD).

See VAX-11 and AMD Am2900

Asymmetric multiprocessing

An asymmetric multiprocessing (AMP or ASMP) system is a multiprocessor computer system where not all of the multiple interconnected central processing units (CPUs) are treated equally.

See VAX-11 and Asymmetric multiprocessing

Avie Tevanian

Avadis "Avie" Tevanian (born 1961) is an American-Armenian software engineer.

See VAX-11 and Avie Tevanian

Bipolar junction transistor

A bipolar junction transistor (BJT) is a type of transistor that uses both electrons and electron holes as charge carriers.

See VAX-11 and Bipolar junction transistor

Bit slicing

Bit slicing is a technique for constructing a processor from modules of processors of smaller bit width, for the purpose of increasing the word length; in theory to make an arbitrary n-bit central processing unit (CPU).

See VAX-11 and Bit slicing

Carry flag

In computer processors the carry flag (usually indicated as the C flag) is a single bit in a system status register/flag register used to indicate when an arithmetic carry or borrow has been generated out of the most significant arithmetic logic unit (ALU) bit position.

See VAX-11 and Carry flag

Central processing unit

A central processing unit (CPU), also called a central processor, main processor, or just processor, is the most important processor in a given computer.

See VAX-11 and Central processing unit

Computer History Museum

The Computer History Museum (CHM) is a museum of computer history, located in Mountain View, California.

See VAX-11 and Computer History Museum

Data General

Data General Corporation was one of the first minicomputer firms of the late 1960s.

See VAX-11 and Data General

DECtape

DECtape, originally called Microtape, is a magnetic tape data storage medium used with many Digital Equipment Corporation computers, including the PDP-6, PDP-8, LINC-8, PDP-9, PDP-10, PDP-11, PDP-12, and the PDP-15.

See VAX-11 and DECtape

Digital Equipment Corporation

Digital Equipment Corporation (DEC), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s.

See VAX-11 and Digital Equipment Corporation

Error correction code

In computing, telecommunication, information theory, and coding theory, forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels.

See VAX-11 and Error correction code

Gate array

A gate array is an approach to the design and manufacture of application-specific integrated circuits (ASICs) using a prefabricated chip with components that are later interconnected into logic devices (e.g. NAND gates, flip-flops, etc.) according to custom order by adding metal interconnect layers in the factory.

See VAX-11 and Gate array

George H. Goble

George H. Goble is a staff member at the Purdue University Engineering Computer Network and a 1996 Ig Nobel Prize winner.

See VAX-11 and George H. Goble

Hewlett-Packard

The Hewlett-Packard Company, commonly shortened to Hewlett-Packard or HP, was an American multinational information technology company headquartered in Palo Alto, California.

See VAX-11 and Hewlett-Packard

Indiana University School of Informatics

The Luddy School of Informatics, Computing, and Engineering is an academic unit of Indiana University located on the Indiana University Bloomington (IUB) campus and on the Indiana University Indianapolis (IUI) campus.

See VAX-11 and Indiana University School of Informatics

Instruction set architecture

In computer science, an instruction set architecture (ISA) is an abstract model that generally defines how software controls the CPU in a computer or a family of computers.

See VAX-11 and Instruction set architecture

Interrupt priority level

The interrupt priority level (IPL) is a part of the current system interrupt state, which indicates the interrupt requests that will currently be accepted.

See VAX-11 and Interrupt priority level

Living Computers: Museum + Labs

Living Computers: Museum + Labs (LCM+L) was a computer and technology museum located in the SoDo neighborhood of Seattle, Washington.

See VAX-11 and Living Computers: Museum + Labs

Mach (kernel)

Mach is a kernel developed at Carnegie Mellon University by Richard Rashid and Avie Tevanian to support operating system research, primarily distributed and parallel computing.

See VAX-11 and Mach (kernel)

Massbus

The Massbus is a high-performance computer input/output bus designed in the 1970s by Digital Equipment Corporation (DEC).

See VAX-11 and Massbus

MicroVAX

The MicroVAX is a discontinued family of low-cost minicomputers developed and manufactured by Digital Equipment Corporation (DEC). VAX-11 and MicroVAX are DEC minicomputers.

See VAX-11 and MicroVAX

MOSFET

W and controlling a load of over 2000 W. A matchstick is pictured for scale. In electronics, the metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a type of field-effect transistor (FET), most commonly fabricated by the controlled oxidation of silicon.

See VAX-11 and MOSFET

Negative flag

In a computer processor the negative flag or sign flag is a single bit in a system status (flag) register used to indicate whether the result of the last mathematical operation produced a value in which the most significant bit (the left most bit) was set.

See VAX-11 and Negative flag

OpenVMS

OpenVMS, often referred to as just VMS, is a multi-user, multiprocessing and virtual memory-based operating system.

See VAX-11 and OpenVMS

Overflow flag

In computer processors, the overflow flag (sometimes called the V flag) is usually a single bit in a system status register used to indicate when an arithmetic overflow has occurred in an operation, indicating that the signed two's-complement result would not fit in the number of bits used for the result.

See VAX-11 and Overflow flag

PDP-11

The PDP–11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the late 1990s, one of a set of products in the Programmed Data Processor (PDP) series. VAX-11 and PDP-11 are DEC minicomputers.

See VAX-11 and PDP-11

Robotron K 1840

The K 1840, full name RVS K 1840 (Rechnersystem mit virtuellem Speicher, "computer system with virtual memory") is a minicomputer from the German Democratic Republic (GDR).

See VAX-11 and Robotron K 1840

Schottky transistor

A Schottky transistor is a combination of a transistor and a Schottky diode that prevents the transistor from saturating by diverting the excessive input current.

See VAX-11 and Schottky transistor

Superminicomputer

A superminicomputer, colloquially supermini, is a high-end minicomputer.

See VAX-11 and Superminicomputer

Synchronous Backplane Interconnect

The Synchronous Backplane Interconnect (SBI) was the internal processor-memory bus used by early VAX computers manufactured by the Digital Equipment Corporation of Maynard, Massachusetts.

See VAX-11 and Synchronous Backplane Interconnect

Transistor–transistor logic

Transistor–transistor logic (TTL) is a logic family built from bipolar junction transistors.

See VAX-11 and Transistor–transistor logic

Unibus

The Unibus was the earliest of several computer bus and backplane designs used with PDP-11 and early VAX systems manufactured by the Digital Equipment Corporation (DEC) of Maynard, Massachusetts.

See VAX-11 and Unibus

Unix

Unix (trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

See VAX-11 and Unix

User space and kernel space

A modern computer operating system usually uses virtual memory to provide separate address spaces, or separate regions of a single address space, called user space and kernel space.

See VAX-11 and User space and kernel space

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. VAX-11 and VAX are computer-related introductions in 1977.

See VAX-11 and VAX

References

[1] https://en.wikipedia.org/wiki/VAX-11

Also known as VAX 11/750, VAX 11/780, VAX 780, VAX-11/750, VAX-11/780, VAX-11/782, VAX-11/785, VAX-750, VAX-780, VAX780.

VAX-11, the Glossary

Table of Contents

See also

Computers using bit-slice designs

DEC minicomputers

References