The following message is a courtesy copy of an article that has been posted to bit.listserv.ibm-main,alt.folklore.computers as well.
[EMAIL PROTECTED] (Patrick O'Keefe) writes: > I thought the AS/400 grew out of the 8100, but I suppose it may > have had mixed parentage. (Or I may be remembering wrong.) previous post in thread: http://www.garlic.com/~lynn/2008h.html#9 3277 terminals and emulators the folklore is that after future system project was terminated http://www.garlic.com/~lynn/subtopic.html#futuresys also this old post: http://www.garlic.com/~lynn/2001f.html#33 some number retreated to rochester and did the s/38. i've claimed that somewhat in parallel, the 801/risc project went on ... with an objective of going to the exact opposite extreme of future system hardware complexity. http://www.garlic.com/~lynn/subtopic.html#801 somewhere along the line, a project was started to replace the large variety of internal microprocessors with 801/risc. there was "fort knox" and iliad chips. One of these "iliad" efforts was to replace all the microprocessors in entry and mid-range 370s with (801/risc) iliad chips; the 4381 (4341 followon) microprocessor originally started out to be a iliad chip. iliad chip was also going to be used for the as/400 microprocessor (follow-on to the s/38). Both efforts were still born. Custom cisc chips were eventually done for both the 4381 as well as for the as/400. 8100 used a totally different chip, uc.5 ... significantly underpowered. there is old email about the MIT Lisp machine project asking IBM for 801/risc chips for their machine ... and being offered 8100 instead; old email reference: http://www.garlic.com/~lynn/2006c.html#email790711 in this post http://www.garlic.com/~lynn/2006c.html#3 Architectural support for programming languages as an aside ... at one point they sent my wife in to audit the 8100 effort and she recommended the whole thing be killed off. much later there was the power/pc project (i.e. somerset, joint with ibm, motorola, apple, et al) ... and as/400 finally did move off a cisc processor to 801/risc (power/pc). ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
