Article: 83 of comp.sys.cdc Reply-To: "Douglas H. Quebbeman" From: "Douglas H. Quebbeman" Newsgroups: comp.sys.cdc Subject: The Forgotten 6000 Series Machines Date: Tue, 12 Jun 2001 17:40:34 -0400 Lines: 39 Organization: The Estopinal Group X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.3018.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.3018.1300 NNTP-Posting-Host: mailgate.theestopinalgroup.com X-Original-NNTP-Posting-Host: mailgate.theestopinalgroup.com Message-ID: <3b268c53$1_1@news.iglou.com> X-Trace: news.iglou.com 992382035 mailgate.theestopinalgroup.com (12 Jun 2001 17:40:35 -0400) X-Authenticated-User: teg X-Original-NNTP-Posting-Host: 204.255.235.119 Path: news.meer.net!sea-read.news.verio.net!dfw-artgen.news.verio.net!dfw-peer.news.verio.net!news.verio.net!newsfeed.mathworks.com!howland.erols.net!newsfeed.skycache.com!Cidera!news-reader.ntrnet.net!uunet!ash.uu.net!news.iglou.com Xref: archive.mv.meer.net comp.sys.cdc:83 Now that my 6000 Series Computer Systems Manual has arrived, I read through it and find things I don't at all RCL. First, did anyone here every work on a 7600 that was front-ended by the 6000 Station? As far as I can tell by the limited specs and the diagram, this machine was a 6200 with an interface to a 7600 PPU channel. Then, there's the CDC 6416 Augmented I/O Buffer and Control unit. This was a box with 10 PPUs, 12 channels, a real-time clock, and 16K words of CM. The manual says that while it had no central processor, it could be used as a stand-alone computer. Did anyone ever see one of these used as a stand-alone controller? The manual goes on to say typically it was used as an upgrade to an existing system, connected to it by a 6682/6683 Satellite Coupler. In that configuration, it was sometimes used as a batching terminal. In a variation on that configuration, a sstem could have ECS interfaced between the main system CM and the 6416 CM, which would establish a memory hierarchy as follows: ECS as a system CM Mainframe CM as a system CP memory 6416 16K memory as a distributive memory Two additional instructions were provided in a 6416 that didn't exist in a normal barrel. These are Read Extended Core Coupler Status (27, RCS) and the Extended Core Trans- fer (26, ECT). -- No Tourbots