55 lines
3.3 KiB
Markdown
55 lines
3.3 KiB
Markdown
---
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title: "Mainframe Operating Systems of 1970s"
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description: "In this post, we will see some Mainframe operating systems which were released in the 1970s and can be run on an emulator."
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slug: mainframe-operating-system-of-1970s
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authors: legacyinstaller
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tags: [mainframe, 1970s]
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image: ./img/tops10.webp
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keyword: [1970s, virtualhub, mainframe]
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date: 2023-08-20T10:00
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---
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In this post, we will see some Mainframe operating systems which were released in the 1970s and can be run on an emulator.
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<!-- truncate -->
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## 1970
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### TOPS-10
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In the year 1970, an operating system called [TOPS-10](https://en.wikipedia.org/wiki/TOPS-10) (pictured above) was released for the [DEC PDP-10](https://en.wikipedia.org/wiki/PDP-10) mainframe computer. You can follow the [instructions here](https://bigdanzblog.wordpress.com/2013/09/21/running-your-very-own-decsystem-10-pdp-10/) to install it. You can download manuals from [bitsavers](http://bitsavers.org/pdf/dec/pdp10/TOPS10_softwareNotebooks/).
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## 1972
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### OS/VS1
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[OS/VS1](https://en.wikipedia.org/wiki/OS/VS1) was an operating system for [IBM System/370 mainframes](https://en.wikipedia.org/wiki/System/370). You can run it in an emulator using the instructions from [this GitHub repository](https://github.com/moshix/OSVS1). The manuals are available from [this website](http://www.j76.org/vs1/documentation.html).
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### VM/370
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Another operating system for [IBM System/370](https://en.wikipedia.org/wiki/System/370) and related mainframes in [VM/370](<https://en.wikipedia.org/wiki/VM_(operating_system)>). You can run it on [Hercules emulator](<https://en.wikipedia.org/wiki/Hercules_(emulator)>) by following [these instructions](https://gunkies.org/wiki/Installing_VM/370_on_Hercules). Manuals are available from [bitsavers](http://bitsavers.org/pdf/ibm/370/VM_370/Release_6/).
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## 1974
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### MVS
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[MVS (Multiple Virtual Storage)](https://en.wikipedia.org/wiki/MVS) was yet another operating system for [IBM System/370](https://en.wikipedia.org/wiki/System/370) and related mainframes. The instruction on how to install it are available from [this page](https://www.jaymoseley.com/hercules/installMVS/iMVSintroV7.htm). Manuals are available from [bitsavers](http://bitsavers.org/pdf/ibm/370/MVS/).
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## 1975
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### NOS
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[NOS (Network Operating System)](<https://en.wikipedia.org/wiki/NOS_(software)>) was an operating system which ran on the [CDC 6000 series](https://en.wikipedia.org/wiki/CDC_6000_series) of mainframe computers and their successors. You can install it in an emulator from [these instructions](http://www.hccc.org.uk/nosicem/nosinfo.html). Manuals are available from [bitsavers](http://bitsavers.org/pdf/cdc/cyber/nos/).
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## 1976
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### TOPS-20
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[TOPS-20](https://en.wikipedia.org/wiki/TOPS-20) was an operating system for [PDP-10](https://en.wikipedia.org/wiki/PDP-10) and other DEC's 36-bit mainframe computers. Instructions to install it on [SIMH](http://simh.trailing-edge.com/) are available [from here](https://gunkies.org/wiki/Running_TOPS-20_V4.1_under_SIMH). Manuals are available from [bitsavers](http://www.bitsavers.org/pdf/dec/pdp10/TOPS20/).
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That's it. Of course there are many more Operating Systems which I have not covered, but these are all of them which I was able to find and run in emulators. If you know of more, please let me know in the comment section.
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Stay tuned!
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