Content deleted Content added
m link [mM]emory footprint |
Guy Harris (talk | contribs) →External links: Use the Bitsavers version of the S/370-67 reference card. |
||
| (8 intermediate revisions by 5 users not shown) | |||
Line 3:
{{use American English|date=September 2022}}
{{use mdy dates|date=September 2022}}
{{Infobox
| name = IBM System/360 Model 67
| title =
Line 64:
As other organizations heard about the project they were intrigued by the time-sharing idea and expressed interest in ordering the modified IBM S/360 series machines. With this demonstrated interest IBM changed the computer's model number to S/360-67 and made it a supported product. When IBM realized there was a market for time-sharing, it agreed to develop a new time-sharing operating system called [[TSS (operating system)|IBM Time Sharing System]] (TSS/360) for delivery at roughly the same time as the first model S/360-67.
The first S/360-67 was shipped in May 1966. The S/360-67 was withdrawn on March 15, 1977.<ref>
Before the announcement of the Model 67, IBM had announced models 64 and 66, DAT versions of its 60 and 62 models, but they were almost immediately replaced by the 67 at the same time that the 60 and 62 were replaced by the 65.<ref>{{cite magazine|url=https://apps.dtic.mil/sti/pdfs/AD0694645.pdf|title=System/360 Time Sharing Computers|magazine=DIGITAL COMPUTER NEWSLETTER|volume=17|issue=3|publisher=Office of Naval Research, Mathematical Sciences Division|date=July 1965|pages=5–6|archive-url=https://web.archive.org/web/20121007044217/http://www.dtic.mil/cgi-bin/GetTRDoc?Location=U2&doc=GetTRDoc.pdf&AD=AD0694645|archive-date=October 7, 2012|url-status=live}}</ref>
Line 72:
* "Special bid restrictions have been removed from the System/360 Model 67" (i.e., it was now generally available)
* It included "multiprocessor configurations, with a high degree of system availability", with up to four processing units [while configurations with up to four processors were announced, only one and two
* It had "its own powerful operating system...[the] Time Sharing System monitor (TSS)" offering "virtually instantaneous access to and response from the computer" to "take advantage of the unique capabilities of a multiprocessor system"
* It offered "dynamic relocation of problem programs using the dynamic address translation facilities of the 2067 Processing Unit, permitting response, within seconds, to many simultaneous users"
Line 201:
! style="width:80%; text-align:left;"| Meaning
|-
|
|
| Spare (must be 0)
Line 221:
| External Mask (Summary)
|-
|
| Key
| Protection Key
Line 241:
| Problem state
|-
|
| ILC
| Instruction-Length Code{{sfn|S360|loc=[http://bitsavers.org/pdf/ibm/360/princOps/A22-6821-7_360PrincOpsDec67.pdf#page=177 Instruction-Length Code]|p=156}}
|-
|
| CC
| Condition Code
|-
|
| PM
|
Line 270:
|}
|-
|
|
| Spare
|-
|
| IA
| Instruction Address
Line 360:
}}</ref> The survival and success of IBM's [[VM (operating system)|VM]] family, and of virtualization technology in general, also owe much to the S/360-67.
In 2010, in the technical description of its latest mainframe, the [[IBM zEnterprise System|z196]], IBM stated that its software virtualization started with the System/360 model 67.<ref>{{cite web|url=http://publibfp.dhe.ibm.com/epubs/pdf/sg247832.pdf|id=SG24-7832-00|title=IBM zEnterprise System Technical Introduction|page=57|quote=Starting in 1967, IBM has continuously provided software virtualization in its mainframe servers.|access-date=November 13, 2015|archive-date=January 15, 2018|archive-url=https://web.archive.org/web/20180115163440/http://publibfp.dhe.ibm.com/epubs/pdf/sg247832.pdf|url-status=dead}}</ref>
==See also==
* [[Virtual memory]]
==
* E.W. Pugh, L.R. Johnson, and John H. Palmer, ''IBM's 360 and early 370 systems,'' MIT Press, Cambridge MA and London, {{ISBN|0-262-16123-0}}, includes extensive (819 ''pp.'') treatment of IBM's offerings during this period
* Melinda Varian, [http://www.princeton.edu/~melinda/25paper.pdf ''VM and the VM community, past present, and future''], SHARE 89 Sessions 9059–9061, 1997
▲:{{cite book
| title = IBM System/360 Principles of Operation
| edition = Eighth
Line 379 ⟶ 377:
| publisher = IBM
}}
▲:{{Cite book
| title = IBM System/360 Model 67 Functional Characteristics
| id = GA27-2719-2
Line 390 ⟶ 387:
}}
==References==
{{Reflist}}
Line 395 ⟶ 393:
* A. Padegs, [http://www.research.ibm.com/journal/rd/255/ibmrd2505D.pdf "System/360 and Beyond"], ''IBM Journal of Research & Development, vol. 25 no. 5, pp.'' 377–390, September 1981
* [http://bitsavers.informatik.uni-stuttgart.de/pdf/ibm/360/systemSummary/GA22-6810-12_360sysSumJan74.pdf ''IBM System/360 System Summary''], thirteenth edition, January 1974, IBM publication GA22-6810-12, pages 6–13 to 6-15 describe the model 67
* [
* [http://www.eecis.udel.edu/~mills/gallery/gallery8.html Several photos] of a dual processor IBM 360/67 at the [[University of Michigan]]'s academic Computing Center in the late 1960s or early 1970s are included in [[David L. Mills|Dave Mills']] article describing the [[Michigan Terminal System]] (MTS)
* [http://history.cs.ncl.ac.uk/anniversaries/40th/images/ibm360_672/index.html Pictures of an IBM S/360-67 at Newcastle (UK) University]
| |||