Difference between revisions of "TOPS-20"

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*[[Running TOPS-20 V4.1 under SIMH]]
 
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*[https://www.sky-visions.com/dec/tops20.shtml Running TOPS-20 V3A and V7.1 under SIMH]
  
 
[[Category: PDP-10 Operating Systems]]
 
[[Category: PDP-10 Operating Systems]]
 
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[[Category: DEC Operating Systems]]

Revision as of 08:06, 11 April 2022


TOPS-20
Type: Multi-tasking, multi-user, virtual memory
Creator: DEC
Architecture: PDP-10
Date Released: 1976


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 earlier KA10 PDP-10; hence its nickname of TWENEX.

Basic Use

Networking

TOPS-20 can work with DECnet and with TCP/IP. It was a popular machine on the Internet during its early days (1980s).

MIT added support for CHAOSnet.

Devices

How to get this running

TOPS-20 can run under emulation in SIMH, KLH10, and kx10.