Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!dsuvax!ghelmer From: ghelmer@dsuvax.uucp (Guy Helmer) Newsgroups: comp.os.minix Subject: Re: Dumb Questions -- IBM Minix Message-ID: <1990Dec4.151849.28931@dsuvax.uucp> Date: 4 Dec 90 15:18:49 GMT References: <10150@bunny.GTE.COM> Organization: Dakota State University Lines: 37 In <10150@bunny.GTE.COM> seb3@GTE.COM (Steve Belczyk) writes: >Hi there! I have a few dumb questions about Minix for the IBM: >-- The Minix information sheet mentions that the IBM Minix supports > up to three simultaneous users. Is there any way to add two more, > on COM3 and COM4? Not really. There aren't enough interrupt request lines available in a PC to let COM3 and COM4 have their own interrupts, so they have to share interrupts with COM1 and COM2. It would be quite a challenge to change the rs232 driver to handle shared interrupt lines, and the additional interrupt service overhead would eat up even more CPU cycles than it does now :-( It would be a much better idea to get a smart multi-port rs232 adapter card and try to either 1) find a driver for it or 2) write a driver if you really want to support four or five users. >-- The information sheet also makes no mention of VGA. Will I be able > to use Minix with a VGA card? Mine works! :-) >-- How difficult is it to get UUCP and News running under Minix? It's not very difficult. I had uucp and mail running in a couple hour's time. >Steve Belczyk CIS: 75126,515 BBS: +1 508 664-0149 (2400 bps) -- Guy Helmer helmer@sdnet.bitnet, uunet!dsuvax!ghelmer work: DSU Computing Services, Business & Education Institute (605) 256-5315 play: MidIX System Support Services (605) 256-2788 postnews: message content ambiguous; spurious information added as required