Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!ames!pacbell!ditka!qiclab!sopwith!snoopy
From: snoopy@sopwith.UUCP (Snoopy)
Newsgroups: comp.arch
Subject: Re: DMA on RISC-based systems
Message-ID: <215@sopwith.UUCP>
Date: 5 Jun 89 00:46:35 GMT
References: <46500067@uxe.cso.uiuc.edu> <28200325@mcdurb> <2819@scolex.sco.COM>
Reply-To: snoopy@sopwith.UUCP (Snoopy)
Organization: The Daisy Hill Puppy Farm
Lines: 24

In article <2819@scolex.sco.COM> seanf@scolex.UUCP (Sean Fagan) writes:

|For those of you who haven't guessed, the machine was the CDC Cyber,
|designed (chiefly) by Seymour Cray (God).  The machine I played on mostly
|was a Cyber 170/760, which was estimated at about 10 MIPS or so, and could
|support hundreds of people, all doing "real" work (database, editing,
|compiling, etc.).  As I, and others, keep trying to say, MIPS are fine, but
|can it do I/O?

I remember an 11/70 doing 1/3 the number of jobs of a pair of CDC 6500s.
It supported ~50 users with *very* fast response, faster baud rate terminals
(19.2k vs 300/1200), upper/lower case vs. the 6500's upper-case only, and
of course Unix.  To this day, I haven't used a machine with multi-user
response that's even close.

It's not what you have, it's what you do with it.

    _____     						  .-----.
   /_____\    Snoopy					./  RIP	 \.
  /_______\   qiclab!sopwith!snoopy			|  	  |
    |___|     parsely!sopwith!snoopy			| tekecs  |
    |___|     sun!nosun!illian!sopwith!snoopy		|_________|

		"I *was* the next man!"  -Indy