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 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). Development began in 1976.

2020年9月15日 · VAX-11延续了许多PDP-11的设计，例如UNIBUS、Cache，也有为性能增加的额外的浮点单元和预译码技术。 作为CISC的一员，VAX-11使得程序员可以根据自己的直接需要编写指令，编译器负责生成最短的指令长度，并将一连串的常见指令编译成一条指令。

VAX computer systems refer to a series of 32-bit minicomputers designed by DEC or Digital Equipment Corporation. Simply put, VAX is the hardware, and DEC is the company that produced VAX. The series started with the VAX-11/780 in 1977 – the first commercially successful model.

2023年10月6日 · In 1977, DEC introduced the VAX, a new line of minicomputers that featured a 32-bit instruction set architecture and virtual memory. Its operating system, VMS, was a multi-user, multitasking OS...

The MicroVAX is a discontinued family of low-cost minicomputers developed and manufactured by Digital Equipment Corporation (DEC). The first model, the MicroVAX I, was first shipped in 1984. [1] . They used processors that implemented the VAX instruction set architecture (ISA) and were succeeded by the VAX 4000.

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2018年12月9日 · The Virtual Address eXtension (VAX) was a family of minicomputers produced by DEC from the mid-1970s up to the late 1980s. This family used processors implementing the VAX instruction set architecture, and its members included minicomputers such as the VAX-11/780, VAX-11/782, and so on.

DEC VAX computers belong to the DEC family of 32-bit minicomputers. Their first model was the VAX-11/780, launched in 1977. This notable DEC VAX architecture was a successor to the PDP-11 series, which was known for its implementation of virtual memory, which allowed computers to store data more efficiently than their predecessors.

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