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- From: sct@dcs.ed.ac.uk (Stephen Tweedie)
- Newsgroups: comp.unix.msdos
- Subject: Re: PC-unix plea for help!
- Message-ID: <SCT.92Nov16221517@ascrib.dcs.ed.ac.uk>
- Date: 16 Nov 92 22:15:17 GMT
- References: <1992Nov13.092813.22918@kth.se>
- Sender: cnews@dcs.ed.ac.uk (UseNet News Admin)
- Organization: University of Edinburgh Dept. of Computer Science, Scotland
- Lines: 94
- In-Reply-To: f91-gal@nada.kth.se's message of 13 Nov 92 09:28:13 GMT
-
- In article <1992Nov13.092813.22918@kth.se>, f91-gal@nada.kth.se (Gran Alterland) writes:
- > Nntp-Posting-Host: byse.nada.kth.se
-
- > Hello netters!
-
- > I represent a student body that will soon spend something like
- > 200.000 USD on hardware, I'd really appreciate if you could inform
- > me about some aspects of PC unixing. We will be buing a Sun4 and
- > terminals to attach to it. At present it looks like these
- > 'terminals' will probably be sparcstations, but there is a strong
- > movement that wishes to see a PC-based solution instead. However,
- > our list of requirements on such a system is long and though.
-
- Have you thought about running PCs with Linux installed? To answer
- your particular needs:
-
- > We need:
- > 1) A system that can connect up to the Sun4 as 'dummie terminals'.
-
- Linux offers serial terminal connectivity over serial ports; kernel
- tcp/ip for networking over ethernet; SLIP for tcp/ip over serial
- lines; and NFS (not currently part of the official kernel release, but
- reportedly very stable and useable).
-
- > 2) In terminal mode It must be able to run X11R5, with Motiv, with
- > at least 256 colours and a resolution of 1280x1024.
-
- Should be no problem. With my (Tseng-labs ET4000 graphics card) I run
- at 1024x768 resolution, but the card only supports 16 colours in
- 1280x1024 so I can't experiment with X at that resolution - the X
- server requires either a mono or a 256 colour display. Other cards
- may give better resolution and colours - there is X support for
- S3-based accelerator graphics cards, and you will probably be able to
- find one of those which fits the bill - and the Tseng card itself can
- be pushed up to 1152x900 at 256 colours with a multisync monitor.
-
- > 3) This must go throught a fast link - screen update must be as quick
- > (or only marginally slower) than a sparcstation solution (any recommendations
- > the link? I think a Lan/Ethernet solution would be too slow, but I don't
- > really know...)
-
- I don't think you'd have any real problems with an ethernet
- tcp/ip-based solution here. Running on a standalone colour sun at
- University here, there is no noticable difference in speed when
- running remote applications over ethernet against local applications.
- I don't have a network on my Linux PC at home (more's the pity...) but
- Linux tcp/ip is reported to be rather quick, even when compared to
- stand-alone dedicated PC tcp/ip systems. Unless you overload your
- ethernet, response time is unlikely to be a problem; and that
- constraint is independent of which type of machine you install.
-
- > 4) It must also be able to run 'standalong unix'. (Is SCO the best that's
- > available as far as Unix is concerned?)
-
- Linux is a rapidly maturing, full-featured unix system which has the
- twin advantages of being 1) extremely well supported by the internet
- community (with its own mailing lists and the comp.os.linux usenet
- group), and 2) free. Don't let that put you off; I've been running
- Linux (heavily - with a remote terminal, X-windows, typically with
- half a dozen to a dozen windows active at any one time) for coming on
- two months now, and it has NEVER crashed. I wish I could say the same
- for the Suns I use at work. I believe the record is held by a network
- of PCs running a hospitable database under Linux which was taken down
- for a kernel upgrade after 47 days of continuous active duty.
-
- > 5) Of course, it must run Dos, Windows and OS2 as well.
-
- Linux coexists happily with DRDOS, MSDOS, windows and OS2. It will
- even provide fully integrated support for mounting DOS filing systems
- (on hard disk or floppy) within the Linux file system, for ease of
- sharing data between the two.
-
- > Is there any hardware that's able to do this for us?
- > Would any 486DX50 or DX266 solution suffice or are we better off waiting
- > for the Pentium? Is Local Bus necessay? VESA or PCI?
- > Any help at all would be much appreciated!
-
- Linux will run quite happily on much more limited hardware than that.
- My own setup is a 486DX at 33MHz, but it will run on a 386SX if you
- like. For performance, low memory is a much more serious problem than
- a slow processor. 4MB will happily support stand-alone mode in text
- mode, even with several users logged on. To run X simply as a
- terminal, 4MB should again suffice; but to use it as a proper X system
- running local X clients, you should have at least 8MB.
-
- Highly recommended - see the comp.os.linux forum for more information.
- You might also want to take a look at 386BSD, another free unix
- discussed on comp.os.bsd. It has more mature network support than
- Linux, but is reportedly harded to port non-BSD unix packages to
- (whereas Linux is pretty much compliant with the POSIX standard).
-
- ---
- Stephen Tweedie <sct@uk.ac.ed.dcs> (Internet: <sct@dcs.ed.ac.uk>)
- Department of Computer Science, Edinburgh University, Scotland.
-