IBM System/370: Revision history

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curprev 16:5816:58, 30 March 2025 Guy Harris talk contribs 100,928 bytes −46 Given that IEEE floating point, and a 16-register floating-point register set, didn't show up until S/390, it's not clear why we need to talk about it here rather than in the ESA page. undo
curprev 16:0516:05, 30 March 2025 Comp.arch talk contribs 100,974 bytes +14 binary floats came later in S/390. undo Tag: 2017 wikitext editor

curprev 02:5402:54, 20 January 2025 Guy Harris talk contribs 100,960 bytes +140 Update IBM links, use the Wayback Machine for apparently-dead IBM links, fix titles. undo

curprev 06:1906:19, 26 November 2024 Guy Harris talk contribs 100,822 bytes +61 Clarify that the IC technology switch from S/360 to S/370 was from hybrid integrated circuits to monolithic integrated circuits (except for the System/360 Model 85, which also used monolithic ICs). undo

curprev 21:5121:51, 26 September 2024 Dujo talk contribs 100,744 bytes +151 →IBM 4300: Dead link, use internet archive undo

curprev 07:3507:35, 20 September 2024 Guy Harris talk contribs 100,593 bytes +13 Explain why looking for "IBM 370" would bring you here, even if you want the IBM 370 printer. undo
curprev 07:3407:34, 20 September 2024 Guy Harris talk contribs 100,580 bytes −1,175 Update a Bitsavers link. Combine duplicate references. undo

curprev 19:0219:02, 28 August 2024 InternetArchiveBot talk contribs 101,755 bytes +1,221 Rescuing 5 sources and tagging 0 as dead.) #IABot (v2.0.9.5 undo

curprev 00:4500:45, 27 June 2024 Guy Harris talk contribs 100,536 bytes −373 →Architecture details: Remove note about floating-point registers; that applies only to IBM Enterprise Systems Architecture, which added more FP registers and IEEE floating-point support at one point in ESA/390. undo

curprev 06:5406:54, 12 May 2024 Guy Harris talk contribs 117,177 bytes +82 →Initial models: Copy the "no DAT box" stuff from the same section. undo
curprev 06:5306:53, 12 May 2024 Guy Harris talk contribs 117,095 bytes +583 →Initial models: Copy from IBM System/370 Model 145#New capabilities some references for the longer move and compare operations. (We already copied from there the "extension, not redesign" stuff.) undo
curprev 06:4906:49, 12 May 2024 Guy Harris talk contribs 116,512 bytes +67 Use the IBM Archives Model 165 page as a reference for "evolution, not redesign". undo
curprev 06:4706:47, 12 May 2024 Guy Harris talk contribs 116,445 bytes +179 →Initial models: Copy the "S/370 was initially described as an extension, but not a redesign" stuff from the IBM System/370 Model 145 page; that pertains to all the pre-Advanced Function S/370 introductions, not to any individual machines announced before virtual memory was introduced. undo

curprev 23:0623:06, 11 May 2024 Guy Harris talk contribs 116,266 bytes +4,506 The IBM Archive appears to have been taken down in 2024; use the Wayback Machine. undo
curprev 20:1520:15, 11 May 2024 Guy Harris talk contribs 111,760 bytes −20 "the formalization of the ESA/370 extensions" sounds as if the extensions existed prior to 1988 but were formalized in 1988; as far as I know, that's not the case, so just speak of the extensions themselves as being the addition. undo
curprev 19:4619:46, 11 May 2024 Guy Harris talk contribs 111,780 bytes +35 →Evolution: Note that those are mentioned in the 11th addition of the Principles of Operation, and mention that it's the System/370 Principles of Operation, for the benefit of those who might not know about IBM's Principles of Operation manuals. undo