HDTenEightyP/NetNews huggingface dataset:
From: ajb8886@ritvax.isc.rit.edu
Subject: Re: Just upgraded 386DXL-40 to 486DX2-50 CPU
Reply-To: ajb8886@ritvax.isc.rit.edu
Organization: Rochester Institute of Technology
Date: Thu, 21 Jan 1993 15:14:15 GMT

In article <1jj1frINNho0@usenet.INS.CWRU.Edu>, ab245@cleveland.Freenet.Edu (Sam Latonia) writes:
>
>I just upgraded my cpu tonight from the AMD386DXL-40 to the INTEL
>486DX2-50 cpu. I notice that it takes 40 seconds now from the time
>that I flip the power switch on, on the computer to the opening
>screen of my Menu Direct program. (I don't run Windows or OS2)
>It used to take only 25 seconds with the old 386DXL-40. Can anyone
>explain why the new 486 cpu after all is set on the mother board
>for the new cpu takes 15 seconds longer to run the CMOS than it
>did before the upgrade?????

That's easy.  Because the internal bus was running at 40Mhz before, whereas
with the 486DX2-50 the internal bus is running at 25Mhz.  There's an
interesting-but-complex correlation between the clock factor and the ISA bus IO 
speed.  

>
>(2) I also notice that while I do see a vast improvement in cpu
>speed (386=62.40mhz) To (486=167mhz) it seems that the char in
>the video test went down from 386=6510 chr/ms
>to 4028 chr/ms this is in the turbo mode using the LandMark V2.0???
>It did go up on the normel mode from the 3191 chr/ms (386 cpu) to
>the same rate of 4028 chr/ms as I have in the turbo mode, why?
>Can you tell my???

Again, this is because of the bus speed.  The amount of delay on the ISA video
bus is often tied to the internal clock of the CPU bus.  That's why a true
50Mhz 486DX-50 is much, much faster in terms of video and other IO.  Because
the CPU bus is running at a full 50Mhz vs the DX2-50's 25Mhz.  That's also why
your CPU upgrade slowed down the video; because you downgraded your clock from
40mhz to 25mhz.

It does appear from the character benchmarks that the "turbo mode" switch on
the 486DX2 configuration is not functioning as you report the same benchmark
(4028 chr/ms) for both.

Alex
Organization: Penn State University
Date: Thu, 21 Jan 1993 09:29:21 EST
From: <FWR100@psuvm.psu.edu>
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Wireless Mice

In article <1993Jan20.171038.1207@afit.af.mil>, cbrooks@afit.af.mil (Christopher
L Brooks) says:
>
>Has anyone out there used a wireless mouse?  I'm thinking of getting
>one since my cats have been chewing up my mouse cable (how
>appropriate!).  Any experience shared would be appreciated.

I got the Logitech cordless Mouseman (is there another one??) which is radio-
controlled, with a 6 foot range and all-aspect transmission (no LEDs to aim).
It runs from a lithium battery, which isn't rechargeable, but is supposed to
last a year.  Mine is brand new, but I've heard 4-6 months is more like it.

It's a little bigger than the standard Logitech mouse, plus it has an "ear"
under your thumb where the battery, etc. is held.  The feel is basically the
same as the corded mousemen (I liked my "wedge" C7 better, but...)   My opinion
(and from mostof the people who come to my desk and say "hey, let me play with
that neat mouse of yours") is that the bigger size is a down side but the
cordlessness more than makes up for it.

BTW, I don't know if they make a left hand model.  If you're a lefty, forget
about this one.

-Frank
From: cs161fho@sdcc10.ucsd.edu (cs161fho)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Byte magazine, con man?
Date: 21 Jan 93 03:50:59 GMT

Recently discussion about Net vs. magazines remind me of my
unpleasant experience with Byte magazine.  I subscribed to it two
years ago, but only received one issue.  After I found out the check
was cashed, I wrote them twice- never receive a reply.  I think Byte
was taking chance that small subscriber like me will never take
legal action against them for the little subscription fee(to them at
least).  They were right; as a result, I have never purchased a
single issue of Byte again.  

Newsgroups: comp.sys.ibm.pc.hardware
From: klok@research.ptt.nl (Frits Klok)
Subject: Kyocera BIOS setup problems
Organization: PTT Research, The Netherlands
Date: Mon, 25 Jan 1993 06:43:27 GMT

Hello,

I have trouble with my computer, a 
  
             Victor V286 PC model 2861-2, WITH
             KYOCERA BIOS Z-3A 1986 ver. 2.03A

At boot time it gives the announcement:

             161-system options not set (RUN SETUP)

and then it fails to see the harddisk.

I not know what the error is and I don't have this SETUP-software.
Please help me to find the problem. If you have this SETUP-software, please
e-mail it to me.


Greetings, Peter Pont
e-mail: p.t.pont@research.ptt.nl
From: bdonal@elaine.ee.und.ac.za (B. DONALDSON : PGRADS)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Wanted: DATA for tape drive (50 pin connector)
Keywords: tape drive connector
Date: 27 Jan 93 08:02:47 GMT
Organization: Electronic Eng., Univ. Natal, Durban, South Africa
NNTP-Posting-Host: pc3.ee.und.ac.za

I have an old unix system, which has a tape drive and a hard drive. The hard 
drive is a PC compatible ST506. What I am trying to find out is whether the 
tape drive is also PC compatible. 

The tape drive has a 50 pin connector - is this a PC 'standard' and if so 
what type of card do I need to use it. Also what about software?

Any help would be appreciated - please E-MAIL if possible.

	Brian.     (bdonal@daisy.ee.und.ac.za)
Newsgroups: comp.sys.ibm.pc.hardware
From: msmith@beta.tricity.wsu.edu (Dragon Lord)
Subject: Re: Have I done something stupid? (a SIMM question)
Organization: Washington State University Tri-Cities, Richland
Date: Thu, 21 Jan 93 08:45:59 GMT

In article <ETOBKKC.93Jan21073459@pluto.eto.ericsson.se> etobkkc@hisoy.etn.ericsson.se writes:

>However, the new SIMMs are marked KMM59256AN-10. Does the "10"
>indicate that they are 100ns SIMMs? The 4MB already in my PC is
>70ns.

Yes, the -10 means 100ns.

>
>The PC seems to work as normal (I had to put the new SIMMs in bank 0),
>but I wonder if the new SIMMs are too slow. If so, would any errors
>be trapped by the parity error check (which I've enabled) or would
>the files I'm editing/saving be destroyed without me noticing it?
>
The problems you'll probably run into will be 

machine locking up
parity errors 
read and write errors

Your machine MAY though be able to sense the slower simms and compensate
for it by automaticly inserting more wait states.  Most machines though
(older ones at least) have the wait states hardwired via jumpers on the
mother board.
From: klooster@mswe.dnet.ms.philips.nl
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Parity errors -> NMBS DRAM SIMMS?
Date: 20 Jan 93 09:43:46 +0100
Organization: Philips Medical Systems Nederland

I have installed 4 MB of SIMMS in my 386DX-33 Mhz computer.
Now I get during start up sometimes a parity error and often
while I am running a program. I just saw in the documentation
that I shouldn't use NMBS DRAM. And offcourse (Murphy's Law) the
SIMMS are NMBS SIMMS. Could this be the problem? And what are
NMBS DRAM and what should I use else (the documentation only talks
about 256KB/1MB RAM modules with 70ns or 80ns propagation delay time)?

Any help would be very appreciated,

Richard
Newsgroups: comp.sys.ibm.pc.hardware
From: sasbge@unx.sas.com (Gantt Edmiston)
Subject: Re: HP LaserJet4: Serial&Parallel?
Date: Sun, 24 Jan 1993 22:52:55 GMT
Organization: SAS Institute Inc.

GERLACHJ@QUCDN.QueensU.CA (Jim Gerlach - Cancer Research Labs) writes:

>I understand the new HP LaserJet4 has both a serial and an enhanced parallel 
>port as standard features. Is this so? If it is, is it possible to use both 
>ports simultaneously as a simple printer sharer? If it is possible, what 
>happens if both machines try to submit jobs simultaneously?

Both ports are present, and if two hosts are connected the first
host accessing it's respective port get's serviced.  If another job
come's in on the other port, it waits and will get printed when the
first ports finishes.  Of course this also means that if the sending
hosts don't have some way of "buffering" it's output,  the waiting
job could "hang" the secondary sending host, until the first job
finishes and the second (waiting job) starts and transmits successfully.

Some applications can misinterpret this "wait" to mean that the printer
is down, out of paper or plain non-existant.

Still, it's a nice standard feature and the print quality is wonderful.
You can also install up to 34MB of memory in this printer.  I'm not
sure if more memory might help free the ports faster or not.

--
-----------------------------------------------------------------------------
Gantt Edmiston - SysAdmin     o | If you always do  what you've always done,
SAS Institute Inc.          <(  | you'll always get what you've always got.
Quality Assurance - V416     [\.+--------------------------------------------
Cary NC 27513 919-677-8000 x6091|            sasbge@unx.sas.com
-----------------------------------------------------------------------------
From: michaelr@spider.co.uk (Michael S. A. Robb)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: comp.sys.ibm.pc.hardware
Date: 21 Jan 93 13:15:23 GMT
Organization: Spider Systems Limited, Edinburgh, UK.


In article <185809.1@ssr101.slac.stanford.edu>, haggart@ssr101.slac.stanford.edu writes:
>> How about:
>> comp.sys.x86.video
>> comp.sys.x86.drive
>> comp.sys.x86.hardware   (motherboard, memory, mouse, sound, keyboards,etc)
>> 
>> and get rid of comp.sys.ibm.pc.*
>
>
>Great idea! How about one more division:    comp.sys.x86.software

Definitely a good idea! Could we add: comp.sys.x86.audio

-- 
| Michael S. A. Robb     | Tel: +44 31 554 9424  | "..The problem with bolt-on
| Software Engineer      | Fax: +44 31 554 0649  |  software is making sure the
| Spider Systems Limited | E-mail:               |  bolts are the right size.."
| Edinburgh, EH6 5NG     | michaelr@spider.co.uk |             - Anonymous
Newsgroups: comp.sys.ibm.pc.hardware
From: kogan@oahu.cs.ucla.edu (Boris Kogan)
Subject: Re: Nanao 550i
Organization: UCLA, Computer Science Department
Date: Thu, 21 Jan 93 12:01:28 GMT

In article <hielsche.727590836@aragorn> hielsche@aragorn.CSEE.Lehigh.Edu (Frank Hielscher) writes:
>fuad@madrone.eecs.ucdavis.edu (Turnando Fuad) writes:
>
>>Is it possible on this monitor to use the whole physical screen and still have
>>a rectangular image(especially in 1024x768 and 1024x1280)? Have anyone observed
>>the image is slightly tilted upwards to the right(miniscule but observable)?
>
>Yes, at 1024x768 you can fill the whole screen.
>
>No, at 1280x1024 the maximum image size (diagonal) is about an inch less.
>
>Tilted image? Your deflection coils are not mounted correctly. A major
>hassle to change that.

I have Gateway 66V with Nanao F550i and not only got the 1280x1024 at 60Hz
I have Gateway 66V with NanaoF550i, and got 1280x1024 at 60Hz not just
edge to edge perfectly square, but also easily overscanning beyond the edges.
All you have to do is to use "install" from the mach32 directory, and tinker
with power-up menu in custom monitor mode, stretching and repositioning the
wire rectangle in 1280x1024 mode. Once you have done the best you could there, 
exit the "instal" and make final stretching and adjustments using controls
on your Nanao.
From: vv1@eng.cam.ac.uk (V. Valtchev)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: HELP NEEDED: Using SparcStation (IPC) monitor on a PC
Date: 28 Jan 93 10:10:40 GMT
Organization: Cambridge University Engineering Department, UK

Hi everybody,

Is it possible to use a 16" colour monitor from a Sparc-station IPC
on a PC with a SVGA card. I spoke to an engineer from SUN microsystems
and he told me that the monitor can work in two resolution modes with
vertical refresh rates of 66Hz and 76Hz respectively. The monitor has
all standard inputs - R-G-B, h.sync, v.sync. Any suggestions and ideas 
will be much appreciated. Also, could anyone recommend a reference where 
i can find specifications of the various PC video modes in terms of 
resolution, supported refresh rate, etc.

Thanx in advance!

Valtcho
--
Cambridge University Engineering Dept.      Email: vv1@eng.cam.ac.uk
Trumpington Street                          Tel:   (0223) 332801
Cambridge, CB2 1PZ                          Fax:   (0223) 332662
England                                     Telex: 81239
From: sip1@ellis.uchicago.edu (Timothy F. Sipples)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Odd Tape Backup Cable Needed
Date: 28 Jan 93 00:45:32 GMT
Reply-To: sip1@midway.uchicago.edu
Distribution: usa
Organization: Dept. of Econ., Univ. of Chicago

I'm trying to locate a cable for a tape backup drive (Wangtek 5150EQ
a.k.a. Compaq 150/250).  The cable runs between the host adapter and
the tape drive.  It is a fifty connector ribbon cable, straight
through.  Should be about 18 inches, preferably shielded.  The
connector at one end is a female pin connector, with a square notch at
the top (the key) (like a standard SCSI internal cable):

                         ___
  1                     |   |                     49
-----------------------------------------------------
| X X X X X X X X X X X X X X X X X X X X X X X X X |
| X X X X X X X X X X X X X X X X X X X X X X X X X |
-----------------------------------------------------
  2                                               50

The other end is a female card edge connector, keyed after the first
four connectors (like a floppy diskette connector):

  1                                               49
-----------------------------------------------------
| v v|v v v v v v v v v v v v v v v v v v v v v v v |
| ^ ^|^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ |
-----------------------------------------------------
  2                                               50

Does anyone know where I can obtain such a cable?  Maybe even in the
Chicago area?  The original is too short (about 10 inches).  I think
that was done for a reason, so I'd like something shielded to replace
it.

Thanks.

-- 
Timothy F. Sipples      | READ the OS/2 FAQ List 2.0i, available from
sip1@ellis.uchicago.edu | 128.123.35.151, anonymous ftp, in /pub/os2/all/info
Dept. of Econ., Univ.   | /faq, or from LISTSERV@BLEKUL11.BITNET (send "HELP")
of Chicago, 60637       | [Post to ONE newsgroup only AFTER reading the List.]
Newsgroups: comp.sys.ibm.pc.hardware
From: sdl@cseg16.uark.edu (Steven Lovelady)
Subject: System Info
Summary: System Info program written in C
Keywords: System Info Program written in C
Organization: University of Arkansas
Date: Thu, 28 Jan 1993 16:42:01 GMT

I'm writing a System Info program in C for Ibm's such as the one
in Norton Utilities or PCTools.  I need to be able to find out
what the type of machine is eg. (386SX 16 Mhz), but I can't find
it in any of the books I've read or in any newsgroups.  I've
tried looking through the BIOS and DOS interrupts but I haven't
found anything there either.  If anyone knows I would greatly
appreciate any information they could give me.  Thanks in
advance.

Steve
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Wireless Mice
Date: 26 Jan 93 14:49:41 GMT
Organization: Indiana University

>In article <1993Jan20.171038.1207@afit.af.mil>, cbrooks@afit.af.mil (Christopher
>L Brooks) says:
>>
>>Has anyone out there used a wireless mouse?  I'm thinking of getting
>>one since my cats have been chewing up my mouse cable (how
>>appropriate!).  Any experience shared would be appreciated.

Just wondering if anyone has tried the MS Kid's Mouse. Looks
kinda cute.. wouldn't do with a cat around though..



-- 
-------------------------------------------------------------------------------
Iskandar Taib                          | The only thing worse than Peach ala
Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
Bitnet:   NTAIB@IUBACS                 !
From: dsc3pzp@nmrdc1.nmrdc.nnmc.navy.mil (Philip Perucci)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: UNIX for the PC?
Date: 28 Jan 93 20:20:38 GMT
Organization: Naval Medical Research & Development Command

In article <1993Jan27.004333.30161@camaro.uucp> tfoley@camaro.uucp (Tim Foley) writes:
>In article <C17qxA.114@compsci.liverpool.ac.uk> scst74@csc.liv.ac.uk (Mr. D.W.F. Liu) writes:
>>Hi,
>>	Okay before I even start, NO FLAMES PLEASE, especially MS Windows fans,
>>I'm a total XWindows fan and love it's multi-tasking and dislike MS Windows.  It's just a matter of opinion as I'm sure there are tons of people who look at it from the opposite view.
>>	Now that little disclaimer is over could someone tell me if there is a
>> pd UNIX version and XWindows as well.  I've heard that it's about 1000 
>>pounds (here in the UK) for just setting UNIX up on one computer which seems
>> really excessive.  Heard of Linux but don't know how good it is compared to
>> the UNIX and XWindows(X11) version we've got here at university.  If there 
>>isn't a pd version, does anyone know what the cheapest UNIX system is, 
>
>  Linux or 386 BSD ... Both *FREE*.  I'm running Linux with Xwindows, and it 
>runs just great, wish I had a 20 inch monitor though...and X is free thanks 
>to those great people at mit.  
> 
>
>-- 
>  --------------------------------------------------------------------------
>               The HeartBeat of America...Yesterdays Camaro Z28 
>                             tfoley@camaro.uucp   
>     Call the Camaro Linux Pub-access site: 1-416-238-6550 USRobotics HST
>    Note: Please, no ftpmail or mailing lists or the host gets annoyed :)
>  --------------------------------------------------------------------------

I use Linux, and LOVE it.  Don't have X yet due to my memory/HD limitations,
but many people do use X.  Linux is using the GNU libraries and C/C++ compiler.
Naturally, the Un*x system calls are from the Linux kernel itself.  
-- 
===========================================================================
  phil perucci                | "Any opinions expressed are my own views, 
  ssb1pzp@imcvms.med.navy.mil |  not the position of any organization"
===========================================================================
Newsgroups: comp.sys.ibm.pc.hardware
From: mju@mudos.ann-arbor.mi.us (Marc Unangst)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: IDE vs. SCSI
Date: 26 Jan 1993 18:06:05 -0500
Organization: The Programmers' Pit Stop, Ann Arbor MI
NNTP-Posting-Host: mudos.ann-arbor.mi.us

In article <C1Fo40.JFF@usenet.ucs.indiana.edu> ntaib@silver.ucs.indiana.edu (Iskandar Taib) writes:
>I've heard the same is true for many SCSI devices - people
>often have trouble when mixing and matching. It shouldn't 
>happen but it does, supposedly. No direct experience how-
>ever. 

This is, for the most part, no longer true.  A long time ago, when
devices "conformed" to a very ill-defined non-standard (later somewhat
standardized as SCSI-1), people did have interoperability problems --
because the SCSI standard wasn't enough of one to allow someone to
build a working drive or host adapter without making their own
interpretations.  There was even this thing called SASI, the
predecessor to SCSI, that was somewhat similar to SCSI and if you were
really lucky, a SASI device might work with a host adapter that
claimed to be SCSI.

With the advent of the SCSI-2 standard, things have gotten a great
deal better.  Now, the biggest problem you're likely to have is that
your host adapter won't be supported by the operating system you plan
to run; however, this can be avoided by checking which host adapters
the OS you're running supports, and getting one of them.  If a SCSI
device that was made relatively recently (i.e., 1990 or later) fails
to interoperate with one of the mainstream SCSI host adapters (i.e.,
Adaptec, Future Domain, DTC, Always -- NOT Seagate), I'd send it back
to the manufacturer with a nasty note.  This is 1993, not 1983, and
anything that claims to be SCSI had better actually be SCSI, not some
manufacturer's in-house abortion of same.

-- 
Marc Unangst, N8VRH         | "Of course, in order to understand this you
mju@mudos.ann-arbor.mi.us   |  have to remember that the nucleus of the atom
                            |  is squishy."
                            |    -W. Scheider, from a Physics lecture
From: marka@SSD.CSD.HARRIS.COM (Mark Ashley)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Fujitsu SCSI drives
Date: 25 Jan 1993 23:30:59 GMT
Organization: Harris Computers Systems Division, Fort Lauderdale,FL
Distribution: usa
NNTP-Posting-Host: hcx1.ssd.csd.harris.com
Keywords: drive, scsi

I was browsing the Computer Shopper looking at SCSI drives
and saw an ad that claimed that the Fujitsu ~520 Mb SCSI HD
in the picture had a 200,000 MTBF rating. Can anybody
confirm or discredit this claim ?

Thanks. e-mail please.

-------------------------------------------------------------------------
Mark Ashley                        |DISCLAIMER: The opinions expressed
marka@gcx1.ssd.csd.harris.com      |here are my own; they do not
..!uunet!gcx1!marka               |reflect the opinion or policies
                                   |of Harris Corporation.
-------------------------------------------------------------------------
Xref: sparky comp.sys.ibm.pc.hardware:36765 comp.sys.ibm.pc.soundcard:7118 news.groups:26016
From: wbdst+@pitt.edu (William B Dwinnell)
Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.soundcard,news.groups
Subject: Re: comp.sys.ibm.pc.hardware
Date: 21 Jan 93 22:22:03 GMT
Followup-To: comp.sys.ibm.pc.hardware
Organization: University of Pittsburgh


No, I don't see anything wrong with using the 80x86 name- V20s and 
V30s are a little out of date, besides everybody knows they're Intel
80x86 clones. And, as someone else has already noted, people will keep
on calling Intel's Pentium the "586", and when Pentium clones come
out, the Pentium will be called the "Intels version of the 586". You may
see Intel switch back before too long!
Xref: sparky comp.sys.ibm.pc.hardware:37481 comp.sys.ibm.pc.misc:17198
Organization: University of Illinois at Chicago
Date: Thu, 28 Jan 1993 14:38:08 CST
From: <U52126@uicvm.uic.edu>
Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.misc
Subject: AMS computer sysyem???

>need to know all about AMS computer company and it's
486/33 computer.
>Associates Mega Sub-systems, INC. is based out of
Baldwin Park, CA.
>I need info on their hardware as well as the tech support
and warrenty.
>all the help will be appriciated.
From: davel@comtch.spk.wa.us (Dave Laird)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Help with a Colorado Jumbo 250
Date: 25 Jan 93 07:52:03 GMT
Organization: Waffle BBS at CompuTech Spokane, Washington

salem@pangea.Stanford.EDU (Bruce Salem) writes:
> get through format and never get to read or write a tape.
> 
> I am tempted to return the whole mess to Frys Electronics in Palo Alto
> unless I can get some answers from the vendor. In the meantime, does anyone
> have any ideas for me as to what is wrong?
> 

Bruce,
The single biggest complaint lodged about Colorado Memory Systems Tape 
Drives are usually the TAPES themselves. There are only a limited number 
of kinds of tapes which will work with CMS drives. You didn't mention 
what kind of tape you are using, but if you check in the manual, there is 
a list of certified tapes in there.
Secondly, if the tape you are using is correct, post another message here 
and I will walk through the install of both the tape software and 
hardware with you, as I have written a handy-dandy text file for that 
purpose. 8-)
-dave-

--
davel@comtch.spk.wa.us (Dave Laird)
IEAx for lack of a better name... (509) 624-0744
Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.soundcard,news.groups
From: chip@tct.com (Chip Salzenberg)
Subject: Re: comp.sys.ibm.pc.hardware
Date: Fri, 22 Jan 1993 19:23:37 GMT
Organization: TC Telemanagement, Clearwater, FL

According to dmsilev@athena.mit.edu (Daniel M Silevitch):
>ibm.pc, or perhaps ibm.pc-clone is better.

No -- once you say "pc-clone", the "ibm" part is redundant.  Just
use comp.sys.pc-clone.*.
-- 
Chip Salzenberg at Teltronics/TCT  <chip@tct.com>, <73717.366@compuserve.com>
  "you make me want to break the laws of time and space / you make me
   want to eat pork / you make me want to staple bagels to my face /
   and remove them with a pitchfork" -- Weird Al Yankovic, "You Make Me"