TOPS-20 and VAX

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between TOPS-20 and VAX

TOPS-20 vs. VAX

The TOPS-20 operating system by Digital Equipment Corporation (DEC) was a proprietary OS used on some of DEC's 36-bit mainframe computers. VAX is a discontinued instruction set architecture (ISA) developed by Digital Equipment Corporation (DEC) in the mid-1970s.

Similarities between TOPS-20 and VAX

TOPS-20 and VAX have 7 things in common (in Unionpedia): Berkeley Software Distribution, Digital Equipment Corporation, Mainframe computer, OpenVMS, Operating system, Paging, Virtual memory.

Berkeley Software Distribution

Berkeley Software Distribution (BSD) was a Unix operating system derivative developed and distributed by the Computer Systems Research Group (CSRG) of the University of California, Berkeley, from 1977 to 1995.

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Digital Equipment Corporation

Digital Equipment Corporation, also known as DEC and using the trademark Digital, was a major American company in the computer industry from the 1950s to the 1990s.

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Mainframe computer

Mainframe computers (colloquially referred to as "big iron") are computers used primarily by large organizations for critical applications; bulk data processing, such as census, industry and consumer statistics, enterprise resource planning; and transaction processing.

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OpenVMS

OpenVMS is a closed-source, proprietary computer operating system for use in general-purpose computing.

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Operating system

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

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Paging

In computer operating systems, paging is a memory management scheme by which a computer stores and retrieves data from secondary storage for use in main memory.

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Virtual memory

In computing, virtual memory (also virtual storage) is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a very large (main) memory." The computer's operating system, using a combination of hardware and software, maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory.

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The list above answers the following questions

What TOPS-20 and VAX have in common
What are the similarities between TOPS-20 and VAX

TOPS-20 and VAX Comparison

TOPS-20 has 49 relations, while VAX has 95. As they have in common 7, the Jaccard index is 4.86% = 7 / (49 + 95).

References

This article shows the relationship between TOPS-20 and VAX. To access each article from which the information was extracted, please visit:

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