HDTenEightyP/NetNews huggingface dataset:
Newsgroups: comp.sys.mac.hardware
Distribution: world
From: Ian_Wojtowicz@edgeway.wimsey.bc.ca
Organization: EdgeWays! InfoLink - A FirstClass GUI BBS - "The Edge of Communications and GateWays to the World." North Vancouver, BC Canada
Date: Sat, 21 Nov 1992 18:59:01 PST
Subject: Mouse cleaning

Are there any mouse cleaning kits out on the market?  Is there a way I can
clean the little rollers with some household tools/chemicals?

Thanks in advance.

Ian Wojtowicz
Editor of the EdgeWays! TeleTimes.
Internet:  ian_wojtowicz@edgeway.wimsey.bc.ca
***************************** EdgeWays! InfoLink *****************************
    @edgeway.wimsey.bc.ca  GUI BBS: (604) 984-2777 * Voice: (604) 984-6860
					  *	The views expressed here are of the individual author only. *  
[From FirstClass(tm) by PostalUnion Lite (tm) from North Vancouver, BC Canada]
******************************************************************************
Newsgroups: comp.sys.mac.hardware
From: kanefsky@halcyon.com (Steve Kanefsky)
Subject: Re: DayStar Powercache030 to 040 upgrade?
Organization: The 23:00 News and Mail Service
Date: Fri, 20 Nov 1992 18:02:20 GMT

In article <92324.043053TOGE@SLACVM.SLAC.STANFORD.EDU> Nobukazu Toge <TOGE@SLACVM.SLAC.STANFORD.EDU> writes:
>Independent of whether the DayStar 030 -> 040 deal has been expired or not,
>somehow I am under the impression that DayStar 040 Cache is not out yet
>after all.  Could anyone confirm one way or the other?

You're correct.  It's still in the alpha-testing stage.  They're still
saying it will be out before the end of the year, although you may have
to wait substantially longer for an adaptor for your machine (depending
on which machine you have).  There may not ever be an '040 adaptor for the
LC/LCII.

--
Steve Kanefsky
Newsgroups: comp.sys.mac.hardware
From: proesmsf@esat.kuleuven.ac.be
Subject: Magneto Optical ?
Organization: K.U.LEUVEN, Belgium
Date: Tue, 17 Nov 1992 13:43:52 GMT

Hi,

looking for a new Hd, i stumbled on to the magneto optical drive of
128 Mb, in this case...can't remember the vendor. Could you guys comment 
on this kind of mechanism, own experiences and so ? The actual device i 
got to see had a access time of 35 ms..Yes !? The drive/disk of 128Mb
can be purchased seperartely, a good point...of course only as long as
the technology is standard and will be maintained for another decenium.
I figured it was meant for backing up other HD's. And again, any stories
about this beast ?

thanks in advance,
Frank ( proesmsf@esat.kuleuven.ac.be)

Newsgroups: comp.sys.mac.hardware
From: jgraham@bronze.ucs.indiana.edu (the End)
Subject: MaxApple Zoom: What's it doing ?
Organization: Indiana University
Date: Mon, 23 Nov 1992 22:56:24 GMT


What exactly does the INIT MaxApple Zoom do to expand the desktop from 640x480
to 704x512 ? How does this compare to adjusting the screen size via controls
on the monitor ? Does one loose resolution ?

Thanks,

E-mail:
jgraham@bio.indiana.edu (Jim)
From: nick+@pitt.edu (Nick C De Mello)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Do you REALLY need a coprocessor?  was(Duo opinions wanted)
Date: 20 Nov 92 16:05:18 GMT
Organization: University of Pittsburgh

In article <1992Nov19.161622.10766@Princeton.EDU> awolfe@moo.Princeton.EDU (Andrew Wolfe) writes:
>Just curious - but what do people do on a powerbook that requires an FP coprocessor?  Model fluid flow around space-shuttle heat tiles??
>
>I assumed that most people use powerbools to write, to draw, and to connect to remote hosts.  None of these are going to be improved by the use of a coprocessor.  Excel is an in-between, but my guess is that most people use simple, non-recursive spreadshe
>ets that perform no more than 1000 calculations at a time.  A coprocessor would only save 10ms or so...
>
>Are there people doing important number crunching on Powerbooks or are people just anal about having a coprocessor to balance their checkbooks?  I am interested in hearing what people use their PB coprocessors for.


  Don't have an answer for you, but do have another question.  Does the
68882 help with C compiling and Binhex conversions?  I've gotten two
different answers...


                             --- Nick

   

-- 
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Newsgroups: comp.sys.mac.hardware
From: Dale_Adams@gateway.qm.apple.com (Dale Adams)
Subject: Re: Quadra onboard video
Date: Thu, 19 Nov 1992 13:37:50 GMT
Organization: Apple Computer Inc.

In article <scott.722147860@phylo> scott@phylo.life.uiuc.edu (Scott 
Howard) writes:
> Can the Quadra On-Board Video Drive a two-page monochrome display?
> 
> More specifically, I'm considering getting a used Apple TPD, or
> a Radius 19 or 21 and wanted to know how many box tops I'm going
> to have to save for teh whole system.

Quadra onboard video can drive a 2-page display at up to 8 bits/pixel 
(bpp) on a Quadra 700 or 900 and 16 bpp on a Q950.   With a monochrome 
display you're limited to 256 gray levels (i.e., 8 bpp), so any Quadra 
will work.  You will have to add 2 VRAM SIMMs to a Q700 to get 8 bpp, but 
it does 4 bpp right out of the box.  The Apple TPD is definitely 
compatible with the Quadras.  I'm not sure about the Radius displays.

- Dale Adams
  Apple Computer, Inc.
Newsgroups: comp.sys.mac.hardware
From: rkay@ausom.oz.au (Richard Kay)
Subject: Re: Grayscale ghosts on my new PB160 screen???
Date: Wed, 18 Nov 1992 08:15:06 GMT
Organization: AUSOM - The Apple Users Society of Melbourne

stine@jeeves.ucsd.edu (Blaine Stine) writes:

> Has anyone else noticed that when you have the monitor on a new
> PowerBook set to 16 colors or gray that there is a dramatic ghost of
> the title bar that extends up to the top of the screen and down to
> about the middle forming a gray box. It also seems that the border
> lines of any window where the scroll boxes are also seem to form
> ghosts. One other thing is if you put the mouse cursor in the title
> bar a vertical line appears in the ghost. It is such a pain that I'm
> not using the gray scale setting. I've tried to adjust the
> brightness/contrast to get rid of it but no way.This occurs on both
> of the PB160's I've used. Anyone have any ideas?

Hey, you're right! I never really paid much attention until you
mentioned it Blaine but setting my display to black and white and then
back to 16 grey scale really hammers your point home -- at least with
my display.(PB160 4/120)

I think I can learn to live with it though because I do like the
"depth" that grey scale brings to the screen environment. Does anyone
know if the PowerBook 180 screen behaves this way or does active matrix
technology overcome the problem?

On a related note, I got to looking at my screen real close after
reading Blaines message and noticed two things:

1.If I look real hard at the screen I can see two small, solid-looking,
black dots that are smaller than a pixel embedded in it -- like specks
of dust or grit. Anyone else seen this on their display? Is it just a
bit of debris trapped in the screen during the manufacturing process or
something worse?

2.If I look at the screen with the contrast turned off I can see a
number of hairline cracks it. They appear to be cracks in the plastic.
Anyone else seen this on their display? Are these just imperfections in
the screen plastic or something worse?

I feel fairly confident that the above items are just minor
imperfections but similar reports from other PowerBook owners would be
reassuring.

Regards.
-- 
Richard Kay
E-mail: rkay%ausom.oz@sol.cc.deakin.oz.au


Newsgroups: comp.sys.mac.hardware
From: gurakl@aix.rpi.edu (Laura J. Gurak)
Subject: WANTED: help w/LaserJet II to Mac
Organization: Rensselaer Polytechnic Institute, Troy NY
Date: Sat, 21 Nov 1992 20:44:10 GMT

I have an HP LaserJet Series II (not IIP, but the earlier model: II).
I am about to buy a Mac IIsi 5/80 and need to know if I can
use my LaserJet with my new Mac. Up until now I have had a PC, so the
whole Mac world is new to me.

My dealer tells me that I can hook up the HP Series II using
1.  AppleTalk
2.  a Postscript font cartridge.
  
Someone else also mentioned that I might need some software called
"Grapple." But another dealer told me that Grapple was a real
pain, and to avoid it if I can.

Could anyone who has a spare moment and knows about this stuff
please advise me? What exactly will I need to use my HP with my new Mac?
What is the purpose of Appletalk, the font cartridge, and Grapple?
Do I need all of the above? Do I need anything else such as more
memory for the HP (now has 512K)? 

And finally, after I do all of these things, will the
the HP run at a reasonable speed? I have heard that a postscript
cartridge really slows things down. I plan on using the Mac to
for MS-Word and maybe some small graphics. What will the print
quality look like? 

If anyone actually has experience with an HP series II I would
really appreciate hearing from you. Thanks very much!

Laura Gurak
Rensselaer Polytechnic Institute
gurakl@rpi.edu

-- 
*****************************************************************************
Laura J. Gurak/PhD candidate/Dept. Language, Literature, and Communication
Rensselaer Polytechnic Institute, Troy, NY 12180/gurakl@rpi.edu
rhetorics of science & technology/social aspects of computing/rhet. criticism
From: jacobs@cerritos.edu
Newsgroups: comp.sys.mac.hardware
Subject: Re: Se/30 32-bit clean?
Date: 20 Nov 92 05:34:30 GMT
Organization: Cerritos College, Norwalk CA

In article <BxznBM.L8H@usenet.ucs.indiana.edu>, jgraham@bronze.ucs.indiana.edu (the End) writes:
> 
> 
> 
> no

What he was trying to say, in those o so eloquent :) words was that if you need
32 bits for >8meg of ram, you need Mode32.

-- 



------------------------------------------------------------------------------
Karl Jacobs jacobs@cerritos.edu       Born Again Christian, Nikon owner
				      and Raider fan, how ironic!!! :)
______________________________________________________________________________
Organization: Freshman, MCS general, Carnegie Mellon, Pittsburgh, PA
Newsgroups: comp.sys.mac.hardware
Date: Mon, 23 Nov 1992 18:40:23 -0500 
From: "Benjamin S. Yu" <by24+@andrew.cmu.edu>
Subject: Re: 68040 Powerbooks/Duos: When?
	<ibhan.722536610@husc8>

As afar as i know, the 040 (on a 900) drains 15W, that is a lot of power
for a puny battery.  Other problems include: size of CPU, cooling (15W
would result some heat).  Back to your original statement, no i don't
know if Apple is making one or not.  If those that use 040 needs
portability then market is there hence Apple will grab it.  But a lot of
Quadras are used in engineering, trying to model on the road it not
everyone's need.

just my two cents...

Ben Savageley
From: jabrown@vaxsar.vassar.edu
Newsgroups: comp.sys.mac.hardware
Subject: Re: HP Deskwriter data overflow
Date: 23 Nov 92 18:58:57 +1000
Organization: Vassar College

In article <8807@dirac.physics.purdue.edu>, dtrindle@bohr.physics.purdue.edu (D. J. Trindle) writes:
> I have a Deskwriter C which, on occasion, seizes up in the middle of a
> page and loses the rest of the text.  The error given on the screen is
> Error -90:  the printer gives me a page with the single line "Datacomm
> buffer overrun - no DTR handshaking".  Of what is this symptomatic?  The
> FM seems to imply it might be the cable's fault, but doesn't give any
> instructions or suggestions _in re:_ fixing the damn thing.  
> 
> So:  has this happened to you?  How did you fix it?  Thanks for your help.
> 
>                                                 -D.J.T.
	I have had a similar problem with my regular DeskWriter... Since the
DeskWriter has AppleTalk built in, you can use the AppleTalk mode. Although
this is a bit slower, it spools the document to the disk, therefore preventing
the computer from sending too much to the printer. I would be curious to know
what program you were using when this happened. In my case, I was running
SuperPaint 3.0 with a very large (150+K) draw document with numerous draw
items. The printer would start fine, get about ten head passes, and then give
me the buffer overrun error. When I rana it in AppleTalk, it worked fine,
although took longer to print (I was printing from a Classic though...). Hope
this helps.
	Jamin Brown
	jabrown@vaxsar.vassar.edu

Newsgroups: comp.sys.mac.hardware
From: geo@netcom.com (George Pontis)
Subject: 25Mhz IIsi: what heat sink to use ?
Keywords: IIsi 25 MHZ heat sink
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Distribution: usa
Date: Sat, 21 Nov 1992 20:09:26 GMT

Any suggestions for a suitable heat sink to use atop the 68030 after
making the jump to 25MHz ? Seems that if we glue one on, it makes it very
hard to "undo" the mod.

George
-- 
George Pontis ( geo@netcom.COM )
From: benkei@cs.utexas.edu (William Kent Richards)
Newsgroups: comp.sys.mac.hardware
Subject: Re: How Long are people waiting?
Date: 19 Nov 1992 14:57:07 -0600
Organization: CS Dept, University of Texas at Austin
NNTP-Posting-Host: lion.cs.utexas.edu

In article <18348.2B08ED4D@zeus.ieee.org> John.Espinoza@f1009.n124.z1.ieee.org (John Espinoza) writes:

>Better ask your store if he's in Apple's "educational channel" -> read
>this as meaning lowest priority.  Schools often order only small #'s of

What's interesting to me is that some people have claimed to have already
gotten Duos, and maybe Vx's too, from campus stores.

Any ideas why some schools can get them and some can't?

Kent

-- 

Kent Richards                         "Practice acts of random kindness
benkei@cs.utexas.edu                   and senseless beauty"
Newsgroups: comp.sys.mac.hardware
From: arkon@aol.com (Stephen Hill)
Subject: Re: Plugging in floppy on PB100 while asleep. Will it do damage?
Date: Tue, 17 Nov 1992 22:15:38 GMT
Organization: ArcTypics
Followup-To: comp.sys.mac.hardware

     For a little factual backup:
   Technical Notes/Apple Developer Support
   M.HW.PowerbookSleep, Oct 1992

    * Shutdown Mode:

    Powerbook 100: Shtudown mode for the 100 is identical to sleep mode
except that the operating system software must reboot before continuing.

Further Reference:
    *  Inside Macintosh, Volume VI, Power Manager
    *  Macintosh PowerBook Family Developer Notes

----
ArcTypics, Mac consultation and contracting work
           for small business and personal users.
                                                     (*) YiP (*)
Newsgroups: comp.sys.mac.hardware
From: Eric Frey <frey@bme.unc.edu>
Subject: Re: 25MHz IIsi and my engineering friend
X-Xxmessage-Id: <A732B050E7016506@bigmax.bme.unc.edu>
X-Xxdate: Fri, 20 Nov 92 20:10:08 GMT
Organization: UNC Deptartment of Biomedical Engineering
X-Useragent: Nuntius v1.1.1d11
Date: Fri, 20 Nov 1992 20:10:11 GMT

Subject: Re: Lifetime of 25MHz IIsi (was: 25MHz IIsi and my engineering
friend)
From: Martin Lilly, LILMARA@YaleVM.YCC.Yale.Edu
Date: Thu, 19 Nov 92 10:09:58 EST
In article <168A48EFD.LILMARA@YaleVM.YCC.Yale.Edu> Martin Lilly,
LILMARA@YaleVM.YCC.Yale.Edu writes:
>In article <1992Nov16.181708.22881@news.uni-stuttgart.de>
>skok@itwds1.energietechnik.uni-stuttgart.de (Holger Skok) writes:
> 
>>>"The candle which burns twice as bright burns half as long."
>>
>>(discussion about heat deleted)
>>It's diffusion that kills the CPU. All those nifty PN or other junctions
>>tend to even out over time. The concentration of the donor and acceptor
>>alloying (dotation ?) materials is different on the different sides of
>>the junctions which amounts to a driving potential for diffusion. The
>>coefficient of molecular diffusion is temperature dependent - it is
>>higher at higher temperatures. Conclusion: the higher the temperature
>>the faster all concentration differences in the IC even out, thereby
>>destroying it.
>>
>My P-chem text says that diffusion is a function of temperature in
degrees
>Kelvin. Even if the cpu is running 50 degrees hotter- which it won't
with a
>heat sink installed -is there a big difference between 400 and 450
degrees K?
>Any physicists out there to comment?

Well, I used to be one. Let's see if I can remember my semiconductor 
processing physics. The rate of a process with an activation energy Ea is 
given proportional to
exp(-Ea/(k*T)), where k is Boltzmann's constant ant T is the temperature 
in Kelvin. To compare the rate of two processes at different
temperatures, 
T1 and T2, you take the ratio of this factor and get:
Rate(T1)/Rate(T2) = exp(-Ea/k*(1/T1-1/T2)) = exp(-Ea/k*(T2-T1)/(T2*T1)). 
For T2=400 and T1=450K, the term (T2-T1)/(T1*T2) is -~3e-4 so,
Rate(450)/Rate(400)=exp(3e-4*Ea/k). As I recall,
activation energies for dopant (B, P, As) diffusion in Si are on the
order of a 
3 eV. Boltzmann's constant is 8.62e-5 eV/K. So, for a 50K 
difference in temperature and Ea=3eV, 
Rate(450)/Rate(400)=exp(3*3e-4/8.62e-5) = 34,000! Because of the 
exponential dependence, relatively small differences in temperature make 
a big difference in rate!

	From pratical experience, think about a pressure 
cooker. Even though the increase in temperature is relatively modest -- 
maybe 10 F -- the cooking speed increases a lot!

Eric
Newsgroups: comp.sys.mac.hardware
From: michthom@bnr.ca (Michael Thomson)
Subject: Re: LW II NT idle activity
Organization: BNR Europe Ltd, Maidenhead, UK
X-Newsreader: TIN [version 1.1 PL7]
Date: Thu, 19 Nov 1992 12:07:34 GMT

gordos@joiner.com wrote:
: 	When idle for a while, the Laserwriter II NT makes
: 	a noise like it is going to start printing.
: 	This repeats on a regular basis while it is idle.

Worry not! This is 100% normal. I believe that the printer is just keeping
itself primed for use at any instant, but I don't know *exactly* what it does.
--
*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*
+    Michael Thomson   + The opinions expressed here, while definitely NOT  +
+    BNR Europe Ltd.   + those of my employer, may OR MAY NOT be mine!      +
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Newsgroups: comp.sys.mac.hardware
From: Patrick Parker <pharmacy@epx.cis.umn.edu>
Subject: Re: HOW DO I rename a hard disk????????
Organization: University of Minnesota
Distribution: na
Date: Fri, 20 Nov 1992 15:00:36 GMT

In article <kq4guB1w165w@bluemoon.use.com> djredick@bluemoon.use.com (Darrin J.
Redick) writes:
>cwheeler@alsvid.une.edu.au (AlphaPrime) writes:
>
>> I have a Mac Classic II running system 7.1. I can't rename the hard disk.
>> So far I have made sure the File sharing was off and made sure that no
networ
>> funtions are on.
>> What do I do.
>
>Well, offhand, what _I_ would do is take the pointer, click on the name
>of the hard drive, and type the new name.  I believe that is how it is
>done.

I think he's aware that this used to be the way it worked, but is asking how to
do it now that System 7 has changed things.  I don't know how many other people
experience this problem, but I can't change my HD names without a utility
either... and no I don't have sharing on, nor any applications running, etc. 
Basically, I use DiskTools to rename the hard drive.  Also, I know if you mount
with System 6 you can change the name.  I'm curious as to why it's become a
problem to rename hard drives.  Maybe this is a _feature_ of System 7 so as to
make it harder for non-welcome users from changing configurations.. who knows.

Patrick Parker
University of Minnesota
pharmacy@epx.cis.umn.edu
Newsgroups: comp.sys.mac.hardware
From: torrie@cs.stanford.edu (Evan Torrie)
Subject: Re: 68040 Powerbooks/Duos: When?
Originator: torrie@Xenon.Stanford.EDU
Organization: CS Department, Stanford University, California, USA
Date: 24 Nov 92 03:55:50 GMT

"Benjamin S. Yu" <by24+@andrew.cmu.edu> writes:

>As afar as i know, the 040 (on a 900) drains 15W, that is a lot of power
>for a puny battery.  Other problems include: size of CPU, cooling (15W
>would result some heat).  

  I believe it's more like 6 or 7W, but you are correct that this makes
it almost impossible to put in a battery-operated machine.
  Fortunately, Motorola is designing a low power version of the 040, 
which will eventually make its way into a Powerbook.  However, I'd
be surprised if Motorola has this chip out before the end of next year, 
which won't be too long before the faster, cheaper PowerPC 603 chip.

-- 
------------------------------------------------------------------------------
Evan Torrie.  Stanford University, Class of 199?       torrie@cs.stanford.edu 
Embrace rationalism, reject superstition.           Break away from the past.
"...there is only one thing worse than having marketing people on a project,
 and that is having no marketing people on a project."  - Larry Tesler.
Newsgroups: comp.sys.mac.hardware
Distribution: world
From: Darren_E._Tong@fourd.com
Organization: 4th Dimension BBS
Date: Thu, 19 Nov 1992 10:55:30 EST
Subject: Re: Dying Se/30's HD

Kent Shih,

DID the format fail???
If the format operation fails, quit DMM(disk Manager mac) and choose restart.
when the menu bar appears try holding the mouse button down-it might mount-and
try to use disk first aid!

- BulkRate... and worth every penny!-darren_tong@fourd.com

********************************************************************
System: fourd.com                                Phone: 617-494-0565
Cute quote:  Being a computer means never having to say you're sorry
********************************************************************
Newsgroups: comp.sys.mac.hardware
Subject: Re: Monitors: Sony 1304s vs Mac 14"
From: nick+@pitt.edu (Nick C De Mello)
Date: 20 Nov 92 16:07:36 GMT
Distribution: comp.sys.mac.hardware
Organization: University of Pittsburgh

>Since there has been several threads on various Sony monitors (1320, 1302,
>1304), I would like to ask an addition comparison. How would you rate the
>Sony 1304s with the Mac 14" monitors? Here in the bay area, these monitors
>are selling at equivalent prices. Both are .25dp, although the the 1304s
>does have greater resolution with a 24 bit video, 1024x768. But does this
>make it better than the Mac 14"??

  Doesn't Sony make all the Mac monitors?

                                          -- Nick




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