Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site lsuc.UUCP Path: utzoo!utcs!lsuc!jimomura From: jimomura@lsuc.UUCP (Jim Omura) Newsgroups: net.micro.68k Subject: Re: Re: Re: Info on OS9 Operating System Message-ID: <898@lsuc.UUCP> Date: Tue, 5-Nov-85 16:40:47 EST Article-I.D.: lsuc.898 Posted: Tue Nov 5 16:40:47 1985 Date-Received: Tue, 5-Nov-85 17:32:19 EST References: <347@wlbr.UUCP> <9500001@datacube.UUCP> <375@graffiti.UUCP> Reply-To: jimomura@lsuc.UUCP (Jim Omura) Organization: Barrister & Solicitor, Toronto Lines: 50 Summary: Unix v. OS-9 In article <375@graffiti.UUCP> peter@graffiti.UUCP (Peter da Silva) writes: >> In article <286@steinmetz.UUCP> davidsen@kbsvax.UUCP (Davidsen) writes: >> > >> >People who assume that UNIX must have huge quantities of {disk, memory, cpu >> > ... >> >the future some additional software will be installed, but the system >> >including printer was < $5k, and runs in 640k for three users. The nroff >> >> With 640K under OS-9 I could support 6-8 for similar work (Level II OS-9 > >But how many people would trust a multiuser system with no memory management? >For single-user use, yes, but multiuser? >-- >Name: Peter da Silva Well, first of all, as I've said before, a Gimix Level II system (which is the one I'd probably use) has memory management, and dedicated IO processors for that matter. But memory management isn't that much an issue when you consider we're talking about word processing and possibly a bit of database stuff -- *not* development work. End users running say Databank and Stylograph don't need to worry about memory management. It simply wouldn't help even if you had it. By the way, I also should have commented on the fact that the original message stated that he'd only need 6 meg. of disk for system overhead. *Only* 6 meg.? An equivalent OS-9 could probably be done in under 2 meg. Keep in mind that the system described only had something like 20 meg. of disk in total (I can't remember exactly what he said here) leaving 14 meg. for user memory. As a business person, I think I'd need about 4-5 meg. myself. Some of this could be common documents and data, but I wonder how his 3 users are going to manage? At 20 meg., the OS-9 equivalent would yield 18 meg. for users (this is why I said before that you don't get close to equivalent user value in 10 meg. systems before) The ratio of 7/9 is just starting to even out the effect of overhead. Someone else once pointed out that I wouldn't have Unix mail on OS-9/ This is true. I only have Unix mail through lsuc. Still, check my address list again. Unix mail is nice. It's also not the only way to go. (Of course if I *really* wanted to, I could write a 'mail' utility, but I wouldn't bother). Cheers! -- Jim O. -- James Omura, Barrister & Solicitor, Toronto ihnp4!utzoo!lsuc!jimomura Byte Information eXchange: jimomura Compuserve: 72205,541 MTS at WU: GKL6