Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!henry From: henry@utzoo.UUCP (Henry Spencer) Newsgroups: comp.sys.atari.st Subject: Re: Forwarded message (MINIX) Message-ID: <7508@utzoo.UUCP> Date: Sun, 11-Jan-87 00:27:00 EST Article-I.D.: utzoo.7508 Posted: Sun Jan 11 00:27:00 1987 Date-Received: Sun, 11-Jan-87 00:27:00 EST References: <3298@bu-cs.BU.EDU> Organization: U of Toronto Zoology Lines: 17 > Am I missing something or is it just that no one on this list ever > heard of mini-unix which certainly ran on PDP-11/10s and other PDP-11s > w/o MMUs. ... Try running mini-unix on floppies (we did) and you'll know why there's still a problem. Mini-unix generally ran on machine with no MMUs, yes, but those machines generally had relatively fast hard disks. So mini-unix kept one program in memory at a time and swapped every time it did a context switch. Even with good hard disks, mini-unix performance didn't sparkle. > ...Reminds me of those old physics jokes proving that a bee cannot fly... Considered as a fixed-wing aircraft (which it isn't) a bee can't fly; there's nothing wrong with that proof except the initial assumption. Same situation. -- Henry Spencer @ U of Toronto Zoology {allegra,ihnp4,decvax,pyramid}!utzoo!henry