From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 1268 invoked from network); 10 Feb 2023 02:54:43 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 10 Feb 2023 02:54:43 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 3D0E840D57; Fri, 10 Feb 2023 12:54:38 +1000 (AEST) Received: from lechuck.jsg.id.au (jsg.id.au [193.114.144.202]) by minnie.tuhs.org (Postfix) with ESMTPS id D807D40A45 for ; Fri, 10 Feb 2023 12:54:29 +1000 (AEST) Received: from largo.jsg.id.au (largo.jsg.id.au [192.168.1.43]) by lechuck.jsg.id.au (OpenSMTPD) with ESMTPS id f20a125a (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Fri, 10 Feb 2023 13:54:27 +1100 (AEDT) Received: from localhost (largo.jsg.id.au [local]) by largo.jsg.id.au (OpenSMTPD) with ESMTPA id 0032d427; Fri, 10 Feb 2023 13:54:26 +1100 (AEDT) Date: Fri, 10 Feb 2023 13:54:26 +1100 From: Jonathan Gray To: segaloco Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Message-ID-Hash: 6EBFZ4MUZZ3PQ3JEC5LPRWBFJSILW734 X-Message-ID-Hash: 6EBFZ4MUZZ3PQ3JEC5LPRWBFJSILW734 X-MailFrom: jsg@jsg.id.au X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: tuhs@tuhs.org X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: UNIX/TS 4.x Findings List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Thu, Feb 09, 2023 at 01:32:21AM +0000, segaloco via TUHS wrote: > Good day everyone, I'm emailing to start a thread on part of my larger > UNIX/TS 4.x project that is coming to a conclusion. Lots of info > here, so pardon the lack of brevity. according to Pirzada's thesis there was no UNIX/TS 4.x nov 1978 UNIX/TS 1.0 feb 1979 UNIX/TS 1.1 sep 1979 UNIX/TS 1.2 (VAX) early 1980 PWB and USG groups combine into "Microsystems and UNIX Development Laboratory" jun 1980 UNIX Release 3.0 sep 1980 UNIX Release 3.1 mar 1981 UNIX Release 4.0 aug 1981 UNIX Release 4.1.1 for 3B-20 dec 1981 UNIX Release 4.1.2 jan 1982 System III, based on Release 3.0.1 feb 1982 UNIX Release 4.2 may 1982 UNIX Release 4.2.1 oct 1982 UNIX Release 5.0 jan 1983 System V, based on Release 5.0 "In August 1981, UNIX (denoted: 4.1.1[14]) was released for the WECo 3B-20s processor. It was meant only for the 3B machine and was basically 4.0 with hardware related changes. This release also marked the point where WECo became the official UNIX release agent (aking over from Bell Labs). An update (4.1.2) was released in December containing some memory management fixes and added on-line diagnostics. 14. Release 4.1 never making it out of the door as it was not meant for floating point hardware." > somewhere along the way the responsibility was shifted from Lab 364 (3.x) > to Lab 4542 (5.x). "A Bell Laboratories -wide reorganisation in January 1981 resulted in the UNIX Lab being renumbered. Release 4.0 was launched from this organization in March." > SysV IPC appears to be largely there by 4.1, with only icprm missing > as far as I could tell. further changed in 4.2: "Release 4.2 was launched in February 1982 for both the 3B & the DEC machines. It contained improvements to the data communications and networking software and more mature IPC." > From 4.1 to 5.0 the largest changes I see thus far are the addition of > CB-UNIX init, generalization of COFF from a 3B-20 object format, and > otherwise just clerical, marketing, and accuracy improvements to the literature. "Much improved performance, a new file system, new init and getty (from CB/UNIX) and networking with other bits from BSD/UNIX were the main features of Release 5.0" quotes from: Shamim Sharifuddin Pirzada A Statistical Examination of The Evolution of the UNIX System September 1988 https://spiral.imperial.ac.uk/bitstream/10044/1/7942/1/Shamim_Sharfuddin_Pirzada-1988-PhD-Thesis.pdf referenced in https://www.tuhs.org/Archive/Documentation/Emails/dmr_wkt.html