Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!oliveb!ames!think!whitney
From: whitney@think.COM (David Whitney)
Newsgroups: comp.sys.apple
Subject: Re: Unix OS for //s?
Message-ID: <16927@think.UUCP>
Date: 19 Feb 88 00:35:18 GMT
References: <880218153959.21c039ee@Sds.Sdsc.Edu>
Sender: usenet@think.UUCP
Reply-To: whitney@godot.think.com.UUCP (David Whitney)
Organization: Thinking Machines Corporation, Cambridge, MA
Lines: 30

In article <880218153959.21c039ee@Sds.Sdsc.Edu> jordan%lvvb.span@SDS.SDSC.EDU (RICH) writes:
>Seriously, I don't think I'd want one until a faster processor (say 6 - 8
>MHz was available in a GS.

Watch for MDIdeas' GSx card - runs things at 5.6MHz. I saw a blurb for it in
the winter 1988 edition of the Apple //gs Buyer's Guide. There's also what may
come from Apple, as it has been noted that they have been buying large
quantities of 12MHz 65816s...

>many architectural restrictions. It seems likely that a Un*x on the //s 
>would have fixed or limited process address spaces (no virtual memory) due
>to lack of hardware memory management support.

Watch for an implementation of MINIX (lots o talk on it in comp.sys.minix).
Somebody is probably working on it (hello?? anybody doing this? hint hint :-)

>Does anyone know what the actual data transfer rate is for SCSI hard disks
>like the CMS SD60 or the Sider D40 (sic) when attached to a //GS? The flyers
>list seek time and such, but don't mention the transfer rate.

Transfer rate is awful mighty high. Much higher than the Apple // or even Macs
(mac II not included) can compare to. For the most part, a hard drive is
waiting for the computer - not the other way around. I have a ProAPP 20S, and
the tech guy said that transfer rate for it is 5Mbit/sec. He then said that
the Mac II is the only Apple-type computer that would be able to keep up
with that... He didn't mention other brands.
David Whitney, MIT '90                     Still learning about my Apple //GS
{the known universe}!ihnp4!think!whitney   and all of its secrets. Any and all
whitney@think.com                          technical info appreciated.
DISCLAIMER: You didn't actually believe all that, did you?