AT/370. On Thu, Sep 6, 2012 at 2:07 AM, Leopold Strauss < leopold.stra...@isis-papyrus.com> wrote:
> Yes. > > It was a microprogrammed motorola-68000-chip, which was used. Name was > similar to PC/370, but I am not sure about that. > Many years ago the company, where I was employeed at that tim, had one for > short for testing-purposes. Ibelieve to remember, it was the time, > where 3033-systems came up ( before 3081/3083). > > > > > On 06.09.2012 07:58, George Henke wrote: > >> I believe IBM produced a pc with a 370 to run VM on a PC. Merrill Lynch >> had one. Somewhere in the late 80's I believe. >> >> On Thu, Sep 6, 2012 at 1:52 AM, Timothy Sipples1 <sipp...@sg.ibm.com> >> wrote: >> >> Yes, there are organizations that use zEnterprise servers for "heavy >>> numeric computation." Like decimal floating point. Cryptography is >>> another >>> excellent example. And you can buy optional CryptoExpress adapters if you >>> want to augment the excellent capabilities found in every machine. You >>> can >>> also buy the optional zBladeCenter Extension (zBX) if you want to add >>> DataPower accelerators, Power blades, and/or X86 blades. You can also add >>> an optional IBM DB2 Analytics Accelerator, to boost many types of DB2 >>> queries. So we're way ahead of you, John. ;-) >>> >>> I think the simple answer is that it depends what you optimize for in >>> designing a server processor (or complex). But IBM has broken a lot of >>> "rules" already about which server should do what, and I predict more >>> rules >>> will be broken. >>> >>> With respect to the 370-on-a-chip, IBM sort of did that with the 1975 >>> introduction of the IBM 5100 Portable Computer starting at $8,975 (1975 >>> dollars), although it was for a relatively narrow initial purpose (to get >>> APL running). The 5100 sold reasonably well from what I've read, but I >>> think there were three basic problems which prevented it from becoming a >>> blockbuster: >>> >>> 1. The price was not low enough for mass market appeal. (Apple had a >>> similar problem with the Lisa in the early 1980s.) >>> >>> 2. The software selection didn't exactly hit the mark, although it was a >>> good try for the time. (IBM learned the value of software somewhat later >>> in >>> its evolution but not in time for the 1981 IBM PC.) >>> >>> 3. It probably didn't have the right third party marketing and >>> distribution >>> channels. With some very notable exceptions, like typewriters, at that >>> time >>> IBM would have had some challenges with this type of product. >>> >>> Keep in mind that for 1975 this was absolutely amazing technology, but >>> amazing technology required some expense. Being early is pricey. If the >>> 5100 debuted in, say, 1977 or 1978, it would have still been well timed >>> but >>> could have dramatically reduced the chip and board count. I also think >>> the >>> small built-in monitor could have been sacrified (at least as an option) >>> in >>> favor of a display port of some kind -- ideally RF for TV hookup. And IBM >>> might have gone with a diskette drive for storage -- the 5100 was too >>> early >>> for the 5.25 inch drive, which debuted in 1976. Finally, if IBM had >>> provided a little more guidance on the 370 subset instruction set they >>> implemented, software developers could have taken over from there. >>> >>> So I think the 5100 could have been a nice 5110 by tweaking the recipe a >>> bit. But history didn't happen that way. >>> >>> IBM had some success with the System/4 Pi avionics processors which are >>> descended from System/360. >>> >>> >>> ------------------------------**------------------------------** >>> ------------------------------**-------------- >>> Timothy Sipples >>> Consulting Enterprise IT Architect (Based in Singapore) >>> E-Mail: sipp...@sg.ibm.com >>> ------------------------------**------------------------------** >>> ---------- >>> For IBM-MAIN subscribe / signoff / archive access instructions, >>> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN >>> >>> >> >> > > -- > Mit freundlichen Grüßen / Kind Regards, > > Leopold Strauss > Research and Development > > ISIS Papyrus Europe AG > Alter Wienerweg 12, A-2344 Maria Enzersdorf, Austria > T: +43 - 2236 – 27551, F: +43 - 2236 - 21081 > @ leopold.strauss@isis-papyrus.**com <leopold.stra...@isis-papyrus.com> > > Visit our brand new extended Website at www.isis-papyrus.com > > This e-mail is only intended for the recipient and not legally binding. > Unauthorised use, publication, reproduction or disclosure of the content > of this e-mail is not permitted. This e-mail has been checked for known > viruses, but ISIS accepts no responsibility for malicious or inappropriate > content. > > > ------------------------------**------------------------------**---------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- zMan -- "I've got a mainframe and I'm not afraid to use it" ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
