OS/360 historic, architectural information?

Post #150,829 by inthane-chan 4/12/04 8:06:26 AM Reply	OS/360 historic, architectural information? I'm digging up some dirt on the old OS/360 batch system, and I've done the usual googling - does anybody have any good sites that tend to get overlooked? Personal experiences? Stories? Goofy tricks? Much appreciated, Me. Nobody wins in a butter eating contest
Post #150,831 by jbrabeck 4/12/04 9:28:29 AM Reply	What are you looking for? IIRC it was an IBM 360/40E (or H) that I learned COBOL, RPG, and Fortran.
Post #150,836 by inthane-chan 4/12/04 10:44:50 AM Reply	Just about anything related to the OS architecture. Yet Another Paper, for the "operating systems" class. I still have to go over and see what, if anything, IBM has about the system on their website. I'm aware it was a batch processing OS, with multithreading added in later versions of the OS. I've found some good info on the web, but I'm still lacking in specifics on how the OS itself functioned. Nobody wins in a butter eating contest
Post #150,837 by Another Scott 4/12/04 10:54:36 AM Reply	You may want to look at Hercules. [link\|http://www.conmicro.cx/hercules/\|Hercules]: Hercules is an open source software implementation of the mainframe System/370 and ESA/390 architectures, in addition to the new 64-bit z/Architecture. Hercules runs under Linux, Windows 98, Windows NT, Windows 2000, Windows XP, and Mac OS X 10.2 and later. Lots of links there. HTH. Cheers, Scott.
Post #150,855 by jbrabeck 4/12/04 1:13:54 PM Reply	Sorry, can't help. Me being an Application Programmer then.
Post #150,866 by ben_tilly 4/12/04 1:55:17 PM Reply	The Mythical Man-Month Probably not what you're really looking for, but its author ran the OS/360 project, and several of the essays were about his experience doing so. Cheers, Ben To deny the indirect purchaser, who in this case is the ultimate purchaser, the right to seek relief from unlawful conduct, would essentially remove the word consumer from the Consumer Protection Act - [link\|http://www.techworld.com/opsys/news/index.cfm?NewsID=1246&Page=1&pagePos=20\|Nebraska Supreme Court]
Post #150,868 by a6l6e6x 4/12/04 2:04:13 PM Reply	Here's more, maybe. [link\|http://www.beagle-ears.com/lars/engineer/comphist/ibm360.htm\|Some S/360 history]. You will note some discussion about the model 67. I was an engineer on that CPU and knew it intimately. The original 360 family was announced in 1964, and the lower midrange model 40 was the first to ship a year later. The most interesting version was model 67 (first shipped June 1966) which had hardware to support virtual memory. IBM had planned a special operating system for it (TSS/360), which they never managed to get to work well enough to be usable. Within IBM, model 67 was used with a system known as CP-67, which allowed a single 360/67 to simulate multiple machines of various models. This turned out to be very useful for developing operating systems. Indeed, I was temporarily assigned to help with the development of TSS/360 and did some of the modules. That OS got nowhere. The CP-67 OS, really a research project, became a very successful "un-planned" product. This was the first commercially used virtual machine OS (akin to VMWare of today). The CP-67 OS became the VM/370 OS with the next generation of CPUs. And in the above, a reference to: [link\|http://www.research.ibm.com/journal/rd/441/amdahl.pdf\| Architecture of the IBM System/360] by Gene Amdahl, Fred Brooks and G A Blaauw. (16 pages, PDF). Alex Sacred cows make the best hamburger. --Mark Twain
Post #150,949 by inthane-chan 4/12/04 11:58:14 PM Reply	Thanks all! I've always known I was walking with giants here, but didn't realize we had a System/360 engineer on staff. :) Was hoping for some secret trove of OS/360 information, but Google is too good for its own good sometimes... :P Nobody wins in a butter eating contest
Post #157,793 by dmarker 5/30/04 11:49:30 PM Reply	Are u still looking ? - in another life .. I was a country IBM 360/* Software support specialist on DOS/360 & to a lesser degree OS/360 plus Compilers & networking. Was country specialist for CICS as well (IBM's original on-line system for data entry & later transactions). (Also worked with 370/) Know the 360/370 familiy like the back of my hand :-) also some knowledge of 390/ Am sure I can provide you with some info on how the OSes worked (& largely still do) Doug M _________________________________________________________ "Blinding ignorance does mislead us. O! Wretched mortals, open your eyes!". -- Leonardo Da Vinci
Post #157,813 by inthane-chan 5/31/04 12:21:23 AM Reply	That was soooo last quarter. :D Thanks, though. Would be cool to hear, iffn I had time to read it... Tired of lying in the sunshine staying home to watch the rain. You are young and life is long and there is time to kill today. And then one day you find ten years have got behind you. No one told you when to run, you missed the starting gun.

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