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VAX-11



 
 
The VAX-11 is a family of minicomputers developed and manufactured by Digital Equipment Corporation
Digital Equipment Corporation

Digital Equipment Corporation was a pioneering United States company in the computer industry. It is often referred to within the computing industry as DEC ....
 (DEC) using processors implementing the VAX
VAX

VAX was an instruction set architecture developed by Digital Equipment Corporation in the mid-1970s. A 32-bit complex instruction set computer ISA, it was designed to extend or replace DEC's various Programmed Data Processor ISAs....
 instruction set architecture (ISA). The VAX-11/780 was the first computer to use VAX.

VAX-11/780
The VAX-11/780, code-named "Star", was introduced on 25 October 1977 at DEC's Annual Meeting of Shareholders. It was the first computer to implement the VAX architecture.






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The VAX-11 is a family of minicomputers developed and manufactured by Digital Equipment Corporation
Digital Equipment Corporation

Digital Equipment Corporation was a pioneering United States company in the computer industry. It is often referred to within the computing industry as DEC ....
 (DEC) using processors implementing the VAX
VAX

VAX was an instruction set architecture developed by Digital Equipment Corporation in the mid-1970s. A 32-bit complex instruction set computer ISA, it was designed to extend or replace DEC's various Programmed Data Processor ISAs....
 instruction set architecture (ISA). The VAX-11/780 was the first computer to use VAX.

VAX-11/780


The VAX-11/780, code-named "Star", was introduced on 25 October 1977 at DEC's Annual Meeting of Shareholders. It was the first computer to implement the VAX architecture. The VAX-11/780 central processing unit
Central processing unit

A central processing unit is an electronic circuit that can execute computer programs. This broad definition can easily be applied to many early computers that existed long before the term "CPU" ever came into widespread usage....
 (CPU) was built from transistor-transistor logic
Transistor-transistor logic

File:68k ttl.jpgTransistor?transistor logic is a class of digital circuits built from bipolar junction transistors and resistors. It is called transistor?transistor logic because both the logic gating function and the amplifying function are performed by transistors ....
 (TTL) devices.

VAX-11/782


The VAX 11/782, code named "Atlas", is a dual-processor VAX-11/780.

VAX-11/784


The VAX-11/784, code named "VAXimus", is a very rare configuration consisting of four VAX-11/780 CPUs sharing a single MA780 memory unit.

VAX-11/785


The VAX-11/785, code named "Superstar", was introduced in April 1984. It was essentially a faster VAX-11/780, with a CPU cycle time of 133 ns versus the 200 ns CPU cycle time of the VAX-11/780.

VAX-11/787


The VAX-11/787 was a dual-processor variant of the VAX-11/785.

VAX-11/750


The VAX-11/750, code named "Comet" is a more-compact, lower-performance TTL gate array
Gate array

A gate array or uncommitted logic array is an approach to the design and manufacture of application-specific integrated circuits . A gate array circuit is a prefabricated silicon chip circuit with no particular function in which transistors, standard NAND or NOR logic gates, and other active devices are placed at regular predefined pos...
-based implementation of the VAX-11/780 introduced in October 1980.

VAX-11/751


A ruggedized rack-mount VAX-11/750.

VAX-11/730


Introduced in April 1982, the VAX-11/730, code named "Nebula", was a still-more-compact, still-lower-performance bit slice implementation of the VAX-11/750.

VAX-11/725


Code named "LCN" ("Low-Cost Nebula"), it was a cost-reduced model of the VAX-11/730.

VAX 11/788


The VAX-11/788 was code named "VISQ".