PDP-7 UNIX - Revision history

Jnc: /* External links */ +The PDP-7 Where Unix Began

2025-07-22T10:32:19Z

External links: +The PDP-7 Where Unix Began

← Older revision		Revision as of 10:32, 22 July 2025
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	* [http://doc.cat-v.org/unix/oral-history/ An Oral History of Unix] - Lengthy interviews with Thompson, Ritchie, McIlroy, etc <!-- https://www.princeton.edu/~hos/Mahoney/unixhistory offline original -->		* [http://doc.cat-v.org/unix/oral-history/ An Oral History of Unix] - Lengthy interviews with Thompson, Ritchie, McIlroy, etc <!-- https://www.princeton.edu/~hos/Mahoney/unixhistory offline original -->
	** [https://doc.cat-v.org/unix/oral-history/finalhis.htm Unix: An Oral History] - much detail on the PDP-7 version, especially about the management environment in which it was allowed to flourish <!-- http://www.princeton.edu/~hos/frs122/unixhist/finalhis.htm ditto -->		** [https://doc.cat-v.org/unix/oral-history/finalhis.htm Unix: An Oral History] - much detail on the PDP-7 version, especially about the management environment in which it was allowed to flourish <!-- http://www.princeton.edu/~hos/frs122/unixhist/finalhis.htm ditto -->
			* [https://bsdimp.blogspot.com/2019/10/video-footage-of-first-pdp-7-to-run-unix.html Video Footage of the first PDP-7 to run Unix] - "Hunting down Ken's PDP"
			* [https://bsdimp.blogspot.com/2019/07/the-pdp-7-where-unix-began.html The PDP-7 Where Unix Began] - "Serial Number of First Unix System"

	[[Category: Non-DEC Operating Systems]]		[[Category: Non-DEC Operating Systems]]
	[[Category: Unix OS's]]		[[Category: Unix OS's]]

Jnc: /* External links */ Update Bell Labs URLs (blast Nokia); also Princeton

2025-06-12T16:01:59Z

External links: Update Bell Labs URLs (blast Nokia); also Princeton

← Older revision		Revision as of 16:01, 12 June 2025
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	** [https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/UnixEditionZero.txt The UNIX Time-Sharing System] - covers the PDP-7 and earliest PDP-11 UNIX systems		** [https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/UnixEditionZero.txt The UNIX Time-Sharing System] - covers the PDP-7 and earliest PDP-11 UNIX systems
	* [https://github.com/DoctorWkt/pdp7-unix PDP-7 Unix] - source code on GitHub		* [https://github.com/DoctorWkt/pdp7-unix PDP-7 Unix] - source code on GitHub
	* [https://www.bell-labs~~.com~~/~~usr~~/~~dmr/www~~/ Dennis M. Ritchie] - see section "Unix papers and writings, approximately chronological"		* [https://www.nokia.com/bell-labs/about/dennis-m-ritchie/ Dennis M. Ritchie] - see section "Unix papers and writings, approximately chronological"
	** [https://www.bell-labs~~.com~~/~~usr~~/~~dmr/www~~/hist.html The Evolution of the Unix Time-sharing System]		** Dennis M. Ritchie, [https://www.nokia.com/bell-labs/about/dennis-m-ritchie/hist.html ''The Evolution of the Unix Time-sharing System'']
	* [~~https~~://~~www~~.~~princeton~~.~~edu~~/~~~hos~~/~~Mahoney~~/~~unixhistory~~ An Oral History of Unix] - Lengthy interviews with Thompson, Ritchie, McIlroy, etc<!--		* [http://doc.cat-v.org/unix/oral-history/ An Oral History of Unix] - Lengthy interviews with Thompson, Ritchie, McIlroy, etc <!-- https://www.princeton.edu/~hos/Mahoney/unixhistory offline original -->
	~~http~~://~~doc~~.~~cat-v~~.~~org~~/~~unix~~/~~oral-history~~/ ~~alt copy~~ -->		** [https://doc.cat-v.org/unix/oral-history/finalhis.htm Unix: An Oral History] - much detail on the PDP-7 version, especially about the management environment in which it was allowed to flourish <!-- http://www.princeton.edu/~hos/frs122/unixhist/finalhis.htm ditto -->
	** [~~http~~://~~www~~.~~princeton~~.~~edu~~/~~~hos~~/~~frs122/unixhist~~/finalhis.htm Unix: An Oral History] - much detail on the PDP-7 version, especially about the management environment in which it was allowed to flourish

	[[Category: Non-DEC Operating Systems]]		[[Category: Non-DEC Operating Systems]]
	[[Category: Unix OS's]]		[[Category: Unix OS's]]

Jnc: Expand to more of a quick overview

2023-03-08T01:31:57Z

Expand to more of a quick overview

← Older revision		Revision as of 01:31, 8 March 2023
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	'''~~Unix~~''' (very briefly '''Unics''', as a pun on '[[Multics]]')~~, a~~ name coined later by Brian Kernighan, was written by ~~Ken~~ Thompson in 1969 to experiment with [[file system]]s ~~and~~ support his [[Space Travel]] game. ~~After Bell Labs' withdrawal from~~ the ~~Multics project~~, Thompson was ~~able~~ to ~~find~~ a ~~little-used~~ [[~~PDP~~-7]] ~~with a~~ [[~~Graphic II~~]] ~~display system to work on~~.		'''UNIX''' (very briefly '''Unics''', as a pun on '[[Multics]]') on the [[PDP-7]] was the first version of [[UNIX]]. (The name was coined later by Brian Kernighan.) After [[Bell Laboratories]]' withdrawal from the Multics project, [[Ken Thompson]] was able to find a little-used PDP-7 with a [[Graphic II]] display system to work on, and it was on this machine that UNIX (albeit in a very primitive version) was born.

			It was written by Thompson in 1969, initially to experiment with his ideas on [[file system]]s, notably his idea on separating the naming function ([[directory\|directories]]) from the actual storage of data (in [[file]]s); the [[UNIX file system]] was the first to completely separate these two. It was also used to support his [[Space Travel]] game.

			The PDP-7 version was written entirely in [[assembly language]]. It was heavily influenced by Multics, and also by the [[Berkeley Timesharing System]], which Thompson had worked on.

			Recently, an old listing was discovered, and the system has been recovered from that, and made to run on a [[simulator]]. ([[Compatible Time-Sharing System\|CTSS]] and the [[Interface Message Processor\|IMP]] code, among others, were retrieved in the same way.)

			{{semi-stub}}

	==External links==		==External links==
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	** [https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/UnixEditionZero.txt The UNIX Time-Sharing System] - covers the PDP-7 and earliest PDP-11 UNIX systems		** [https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/UnixEditionZero.txt The UNIX Time-Sharing System] - covers the PDP-7 and earliest PDP-11 UNIX systems
	* [https://github.com/DoctorWkt/pdp7-unix PDP-7 Unix] - source code on GitHub		* [https://github.com/DoctorWkt/pdp7-unix PDP-7 Unix] - source code on GitHub
			* [https://www.bell-labs.com/usr/dmr/www/ Dennis M. Ritchie] - see section "Unix papers and writings, approximately chronological"
	~~{{stub}}~~		** [https://www.bell-labs.com/usr/dmr/www/hist.html The Evolution of the Unix Time-sharing System]
			* [https://www.princeton.edu/~hos/Mahoney/unixhistory An Oral History of Unix] - Lengthy interviews with Thompson, Ritchie, McIlroy, etc<!--
			http://doc.cat-v.org/unix/oral-history/ alt copy -->
			** [http://www.princeton.edu/~hos/frs122/unixhist/finalhis.htm Unix: An Oral History] - much detail on the PDP-7 version, especially about the management environment in which it was allowed to flourish

	[[Category: Non-DEC Operating Systems]]		[[Category: Non-DEC Operating Systems]]
	[[Category: Unix OS's]]		[[Category: Unix OS's]]

Jnc: Jnc moved page PDP-7 Unix to PDP-7 UNIX: 'UNIX' was still in caps at this point

2022-05-24T19:24:46Z

Jnc moved page PDP-7 Unix to PDP-7 UNIX: 'UNIX' was still in caps at this point

← Older revision		Revision as of 19:24, 24 May 2022
(No difference)

Jnc: /* External links */ +TUHS links

2022-02-13T14:41:22Z

External links: +TUHS links

← Older revision		Revision as of 14:41, 13 February 2022
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	==External links==		==External links==

	* [https://github.com/DoctorWkt/pdp7-unix PDP-7 Unix source code on GitHub]		* [https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/ PDP-7 Unix] - recovered source listings
			** [https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/Readme Readme] - covers contents
			** [https://www.tuhs.org/Archive/Distributions/Research/McIlroy_v0/UnixEditionZero.txt The UNIX Time-Sharing System] - covers the PDP-7 and earliest PDP-11 UNIX systems
			* [https://github.com/DoctorWkt/pdp7-unix PDP-7 Unix] - source code on GitHub

	{{stub}}		{{stub}}

Jnc: +cats, expand a tiny bit

2021-08-24T08:14:56Z

+cats, expand a tiny bit

← Older revision		Revision as of 08:14, 24 August 2021
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	Unix, a name coined later by Brian Kernighan, was written by Ken Thompson in 1969 to experiment with file ~~systems~~ and support his [[Space Travel]] game. Thompson was able to find a little-used [[PDP-7]] with a [[Graphic II]] display system.		'''Unix''' (very briefly '''Unics''', as a pun on '[[Multics]]'), a name coined later by Brian Kernighan, was written by Ken Thompson in 1969 to experiment with [[file system]]s and support his [[Space Travel]] game. After Bell Labs' withdrawal from the Multics project, Thompson was able to find a little-used [[PDP-7]] with a [[Graphic II]] display system to work on.

	==External links==		==External links==
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	{{stub}}		{{stub}}

			[[Category: Non-DEC Operating Systems]]
			[[Category: Unix OS's]]

Larsbrinkhoff: Link to sources on GitHub.

2021-08-24T05:54:42Z

Link to sources on GitHub.

← Older revision		Revision as of 05:54, 24 August 2021
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	Unix, a name coined later by Brian Kernighan, was written by Ken Thompson in 1969 to experiment with file systems and support his [[Space Travel]] game. Thompson was able to find a little-used [[PDP-7]] with a [[Graphic II]] display system.		Unix, a name coined later by Brian Kernighan, was written by Ken Thompson in 1969 to experiment with file systems and support his [[Space Travel]] game. Thompson was able to find a little-used [[PDP-7]] with a [[Graphic II]] display system.

			==External links==

			* [https://github.com/DoctorWkt/pdp7-unix PDP-7 Unix source code on GitHub]

	{{stub}}		{{stub}}

Larsbrinkhoff: Stub.

2021-08-24T05:50:31Z

Stub.

New page

Unix, a name coined later by Brian Kernighan, was written by Ken Thompson in 1969 to experiment with file systems and support his [[Space Travel]] game. Thompson was able to find a little-used [[PDP-7]] with a [[Graphic II]] display system.

{{stub}}