The TOPS-20 operating system by Digital Equipment Corporation (DEC) is a proprietary OS used on some of DEC's 36-bit mainframe computers.
TOPS-20
Operating system
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The TOPS-20 operating system by Digital Equipment Corporation is a proprietary OS used on some of DEC's 36-bit mainframe computers. The Hardware Reference Manual was described as for "DECsystem-10/DECSYSTEM-20 Processor". Wikipedia
Developer: Digital Equipment Corporation and Raytheon BBN Technologies
License: Proprietary software
Programming language: Assembly language
Default user interface: Command-line interface
Marketing target: Mainframe computers
OS family: TENEX
Working state: Discontinued
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This distribution provides an easy way to run your own full-blown TOPS-20 system, including TELNET logins, at speeds many times the original DEC hardware. I ...
Dec 12, 2023 · TOPS-20 is an operating system for the PDP-10, DECSYSTEM-20. It was descended from TENEX, an operating system for a modified version of the ...
TOPS-20 was first announced as a DEC product and shipped in January, 1976. Development had started in 1973 based on TENEX[1], an operating system for the PDP-10 ...
The DECSYSTEM-20 was a family of 36-bit Digital Equipment Corporation PDP-10 mainframe computers running the TOPS-20 operating system and was introduced in 1977 ...
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TOPS-20 Monitor Calls Reference Manual | | | Electronically Distributed | | | | This manual describes all the monitor calls that | exist in the TOPS-20 ...
Abstract: This report describes modifications made to the TOPS-20 operating system in order to enable ARPA research programs previously supported by the TENEX ...
This manual describes all operating system commands available to the nonprivileged user of TOPS-20. For easy reference, the command descriptions are arranged.
AN OVERVIEW OF THE TOPS-20 SOFTWARE. 1-5. INSTALLATION TOOLS. 1-5. THE TOPS-20 MONITOR AND THE TOPS-20AN MONITOR 1-8. The Batch System. 1-9. CREATING THE TOPS- ...
TOPS-20 always have versions of files, just like VMS and RSX. ... versions. Also, the notation was not with any square brackets. ... unless my brain suddenly ...