scwilk@sdrc.UUCP (Ken Wilkinson) (03/24/88)
Subject number 1: Ok folks, its been a few weeks since I posted a message suggesting that we get off our duffs and design a computer based on the '532. Given the OVERWHELMING RESPONSE of THREE people :-} I am posting the results: >In article <235@sdrc.UUCP> I wrote: > o IBM PC/AT system board replacement, uses present PC cheap > and availble parts for enclosure , HD and graphics contrlr etc. > > o Classic SBC design with SCSI on board memory. Uses a terminal. > > o Above with AT type (EGA?) graphics controller chip set. > > o design a SBC but have slots for expansion. > > 2 - votes for IBM PC/AT system board replacement. 1 - vote for SBC with SCSI. >Software: > > o REAL UN*X (BSD, SYS V) > > o MINIX (yecchhh, sorry :) ) > > o MACH > > o Other PD OS (check out os.research) 2 - votes for BSD Un*x. 1 - vote for Sys V. > > I have a friend who is a dedicated hacker and owns a business > with the ablility to make PCB's from schematics. I would be > willing to help translate a schematic to artwork if others are > will to help design it. Any takers? > ONLY 1 person was willing to help! (typical) Thanks Scott. What are your skills? If anyone else is interested, you may still vote, just email responses to <uunet!sdrc!scwilk> Subject number 2: I see that a replacement for the NCR SCSI chip which promises twice the performance is available. Anyone know anything about it? Suppose to be plug compatable...
herder@myab.UUCP (Jan Herder) (03/29/88)
In article <249@sdrc.UUCP> scwilk@sdrc.UUCP (Ken Wilkinson) writes: >Subject number 2: > > I see that a replacement for the NCR SCSI chip which promises > twice the performance is available. Anyone know anything about > it? Suppose to be plug compatable... I suppose that you are speaking of L5380 made by Logic Devices. It's better than NCR5380 but not much since the 5380 suffers from severe brain damage from the beginning. The high speed version is a 48 pin CMOS variant that is plug compatible with NCR5380 CMOS. Since the non CMOS variant is a 40 pin chip it's not plug compatable with itself. Stay away from 5380 chip it's impossible to implement full SCSI with it. Full SCSI means disconnect, multiple host's and function as initiator and target at the same time. The Western Digital WD33C93 is a much better choice.
pekka@prefix.liu.se (Pekka Akselin [The Mad Midnight Hacker]) (03/31/88)
In article <352@myab.UUCP> herder@myab.UUCP (Jan Herder) writes: > Stay away from 5380 chip it's impossible to implement full >SCSI with it. Full SCSI means disconnect, multiple host's and function >as initiator and target at the same time. The Western Digital WD33C93 >is a much better choice. I agree on that. I've looked on both for a project here, and I found that the WD33C93 was (is) a better choice. The project was (was) building a 32332 based UNIX machine but the project hardly even started. I was one of the adminstrators for that project but when I've got a 32 bitter of my own I leaved the project. The project was a great one! It was called 'Isabella' after the day it was started. I'm very sorry that it wasn't finished (if I have to be honest I have to say that the project is emerging but slowly). /pekka [...The Mad Midnight Hacker Strikes Again...] ______________________________________________________________________________ pak@ida.liu.se ...!uunet!enea!liuida!ida!pak Pekka Akselin, Univ. of Linkoping, Sweden (The Land Of The Midnight Hacker 8-) Bus error (core dumped)