HDTenEightyP/NetNews huggingface dataset:
Newsgroups: comp.sys.mac.hardware
Date: Tue, 17 Nov 1992 00:23:39 -0500 
From: Robert Agustin <ra00+@andrew.cmu.edu>
Subject: Duo opinions wanted


    Would any Powerbook Duo 210 or 230 owners please share with me their
opinions on their new machines?  Right now I'm split between getting a
regular powerbook 160/180 and the Duo 210/230.  I basically know what
I'm getting with the 160/180 but has anyone run across any special
problems or pet peeves with the Duo after day-to-day use?

Questions I have:

Powerbook Duos:
 - Overall Functionality
 - Is there some way to let the Duo function as an external HD or have
   networking capabilities without having to buy a smaller portable dock?
   (MacWorld didn't explicitly say)
 - What are memory prices like? (I need at least 8 megs to live)
 - Ergonomics?  Is typing reasonably comfortable?  How does the screen "feel"?
 - Compatiblilty?  Will I be able to run the "beefier" applications like Adobe
   Photoshop, Macintosh CommonLISP, Think C, and Pagemaker without problems?
   I guess I should also ask how System 7.1 is also.  For me, I've sworn not to
   upgrade from 7.0.1 because of all the compatibility problems with software I
   already have.  A friend of mine tried it on his IIci and had so much trouble
   that he switched back in a matter of hours.
 - Does it have stereo or mono sound?

Docking Stations:
 - Are there any limitations on expandibility on the DuoDock?  (card
size, power
   draw, etc.)
 - Would I be able to add an extra hard drive in the dock?
 - Does the MiniDock come with an FPU?

    What I'm considering now is a Duo 210/230 with DuoDock, a 14"
monitor, an extended keyboard, and a maybe a floppy adapter or MiniDock
(for the serial and ADB ports).  I'd mainly use it as a desktop system
while at school (like the IIci I have now) and over the summer and
during Christmas, I'd take just the Duo and the adapter home, leaving
the DuoDock, Monitor, and Keyboard behind in storage and save
tremendously on shipping costs ($170 4th class!!!).

Thanks

Robert

P.S. - please send replies to me (ra00@andrew.cmu.edu) and I will
summarize if anyone wants me too.
Newsgroups: comp.sys.mac.hardware
From: haase@meediv.lanl.gov (Peter Haase - LANL)
Subject: Backup - DAT or 8mm?
Followup-To: comp.sys.mac.hardware
Organization: Los Alamos National Laboratory
Date: Wed, 18 Nov 1992 14:10:04 GMT

Aside from the capacity of 8mm or DAT does anyone have any experience
with both to know which one is better in the terms or reliability and
speed? Any comments would be greatly appreciated. Thanks in advance.

*******************************************************************
Peter Haase                                   haase@meediv.lanl.gov
Los Alamos National Laboratory
Mechanical Electronic Engineering Division
From: wrowe@reed.edu (Wayne S. Rowe)
Newsgroups: comp.sys.mac.hardware
Subject: Is 14" a 13" ???
Date: 20 Nov 92 09:30:58 GMT
Article-I.D.: reed.1992Nov20.093058.2773
Distribution: comp.sys.mac.hardware
Organization: Reed College, Portland, Oregon

Ok, I have a weird one for you. So I just ordered and received a new Macintosh
IIvx system from the local educational institution of which I am enrolled.
Fine. I get the CPU, the hard drive, and a monitor. The monitor is supposed
to be one of Apple's new 14" Color Hi-Res Display. Now here's where I'm
confused: Upon actually measuring the inches diagonal of the monitor I find
the measure to be 13", _not_ 14". What does this mean? Is more than the
actual screen measured when specifying the screen size for monitors or some-
thing? Further investigation in the product's specs say:

Picture Tube - 13-inch viewable diagonal

What gives? Did I get a 13" when I should've got a 14"?

<confused>
Newsgroups: comp.sys.mac.hardware
From: cole@alexia.lis.uiuc.edu (Sandra Stewart-Cole)
Subject: Re: PC SIMMs in a mac?
Organization: University of Illinois at Urbana
Date: Tue, 17 Nov 1992 16:05:13 GMT
Keywords: PC SIMMs in Mac?

In <laug.721874522@sfu.ca> laug@fraser.sfu.ca (Christopher Lau) writes:

>   I was told that there is no difference between the SIMM modules in a PC and
>the ones in Mac. Does this mean that all SIMMs will work on any computer that
>can take them? I am assuming that the density of the SIMM chips do not play
>a major role in this matter(even though they do).


>So if the situation above is true then that means I can put any SIMM module
>in my Mac LC provided they are less than 4 megs?


You were told wrong. PC SIMMs have an extra chip on them for parity checking. 
This means they usually cost about 15% more. They CAN generally be used in a 
Mac however, if you happen to have a few hanging around. There are of course 
always speed considerations, and you CANNOT use a Mac SIMM in a PC.
From: jas@ISI.EDU (Jeff Sullivan)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Farewell to the Mac? (not flame)
Date: 19 Nov 92 01:52:14 GMT
	<terjer-181192084445@majestix.ifi.unit.no>
	<1992Nov18.214939.3440@dartvax.dartmouth.edu>
Organization: USC-ISI
In-reply-to: hades@coos.dartmouth.edu's message of 18 Nov 92 21:49:39 GMT

In article <1992Nov18.214939.3440@dartvax.dartmouth.edu> hades@coos.dartmouth.edu (Hades) writes:

>terjer@ifi.unit.no (Terje Rydland) writes:
>
>>model03@kuhub.cc.ukans.edu (John Deke) writes:
>>> Do you think the Mac will be phased out?

[...]

>>This doesn't mean that the old Macs will be unusable.  System 7.1 is
>>constructed so that to add functionality you just drop a new extension
>>on the System folder (like QuickDraw GX etc)
>
>  What about System 8 and the new MicroKernal that is being developed?
>If Macs are going to be phased out, then why would Apple spend so much
>time and money on developing new system software for them. The system
>software for the PowerPC is being developed by Taligent.

This is not toally correct.  Taligent has already acknowledged that
their first release won't be until well after PowerPC has shipped.
They aren't even committing to releasing the Macintosh "emulator" with
the first release of Taligent.

>>> If so, how? Like the Apple II?
>
>>Don't know what they did to the Apple II.  I think that the new machines
>>will be just faster Macs, but maybe with another name (some people - or
>>firms - will not buy Macs because they have been told again and again
>>that the Mac is a toy).  Maybe they will keep the CISC Macs for home-use
>>(low-cost) and primarily market the new machines for universities and
>>firms that needs the power of the RISC chips.
>
>  PowerPC machines will not be Macs, they will be PowerPCs. This has
>been stated more than once. The current target for the RISC based
>machines is the workstation market currently dominated by Sun, but there
>will continue to be a need for business level PCs for quite some time,
>and as long as that need exists, I expect there will be Macs to be
>purchaced.

This is not wholly correct either.  From all published accounts (which
are all officially rumors), the first PowerPCs will be Macs.  There
will be no other OS capable of running on them at first.

jas
--
--------------------------------------------------------------------------
Jeffrey A. Sullivan             | Research Scientist et al.
jas@isi.edu (Internet)          | Information Sciences Institute
72511,402    (Compuserve)       | University of Southern California
Newsgroups: comp.sys.mac.hardware
From: bohus@math.lsa.umich.edu (Geza Bohus)
Subject: can I put memory in the PB 160 myself?
Organization: University of Michigan, Mathematics Department, Ann Arbor
Date: Wed, 18 Nov 1992 17:10:25 GMT

Hi,

As the title says, I'd like to know if it is possible/hard/easy to put
memory I buy separately in the PB 160. Do I need special tools? I've
put SIMMs in SE's, SE/30's, Classic I/II's, so if you could compare it
to that, that would be perfect.

Please send email.

AdvThanksance,

g

bohus@math.lsa.umich.edu
Newsgroups: comp.sys.mac.hardware
From: t35058d@kaira.hut.fi (Sami Markus Kuisma)
Subject: Re: 25 mHz IIsi--FAILURE
Organization: Helsinki University of Technology, Finland
Date: Wed, 18 Nov 1992 12:35:36 GMT

In article <2210021@hplvec.LVLD.HP.COM> bayes@hplvec.LVLD.HP.COM (Scott Bayes) writes:
>This upgrade is a "your mileage may vary" situation.  You're taking
>various components that the mfgrs said will run fine w/20MHz clocking
>(40 MHz) and adding 25% to what they promised.  You'd expect some
>systems will be "lucky" and go, and others won't.  The really unlucky
>folks might find it goes _mostly_, but every so often, something on the
>bus bobbles a cycle.  That could get really nasty.
>
>You're gambling, people.
>
>ScottB

It didn't work for me either. After ten minutes system crashed.
But before crashing I got 24.5% increase in speed. I think this is
heating problem but I haven't tried heat sinking yet.

Could the processor heat up enough in just ten minutes (it didn't feel hot)?

Sami Kuisma

Newsgroups: comp.sys.mac.hardware
From: jason@lanai.cs.ucla.edu (Jason Rosenberg)
Subject: Re: About IIsi upgrade heat...
Organization: UCLA, Computer Science Department
Date: Tue, 17 Nov 92 20:02:17 GMT

seth@physc1.byu.edu writes:

>Hi. I have been doing some thinking about some of the responses posted here 
>about the IIsi myself, and I would like to address the heat problem. 
>................stuff deleted......
>This means that each clock cycle will produce heat for a SHORTER amount of
>time, and that therefore even though there are 5 million more clock cycles
>you end up with no more heat than before. 

Well, here is the flaw in your reasoning.  When a digital chip like a 
microprocessor receives a clock cycle, it is not as if it is suddenly on
and active for the duration of the high portion of the clock.  It only cares
about the leading edge of the clock cycle, and turns it into a spike internally.
This spike then serves to initiate the microprocessors business for that
clock cycle.  When it finishes, it will sit and wait for the next clock spike.
Thus, the microprocessor will attempt to do the same amount of switching per
clock spike, regardless of the frequency of those spikes.  Thus, an increase
in clock speed->an increase in circuit switching-> an increase in current->
an increase in heat.  

Also, it is resting time at the end of the 
microprocessor's cycle that determines how fast you can push the processor.
So the danger in increasing the frequency is that you will be telling the
processor to start its next cycle before it has finished the last one.
The microprocessor must be allowed to stabilize before each cycle.
Due to manufacturing defects, etc., some processors will stabilize faster
than others.

Reducing the heat simply allows things to stabilize better, and reduce spurious
noise and radio interferences...


-- 
Jason Rosenberg                           Computer Science Department
jason@cs.ucla.edu                         University of California
{uunet,rutgers,ucbvax}!ucla-cs!jason      Los Angeles, CA  90024
Newsgroups: comp.sys.mac.hardware
From: C558172@mizzou1.missouri.edu
Subject: Re: Heavy Mouse Balls Available??
Organization: University of Missouri
Date: Wed, 18 Nov 92 17:06:41 CST

In article <derosa.722024353@mica>
derosa@rtsg.mot.com (John DeRosa) writes:
 
>First of all, I detest the light weight mouse balls.  They
>may make the mouse lighter, and some people may prefer that,
>but the light mouse ball does not track as well as the
>heavier variety (IMHO).
>
>Does anyone know of a source for the heavy duty balls.
>Apple doesn't appear to stock them.
>--
>=  Enjoy!          John DeRosa, Motorola, Inc, ESMR Development  =
>=  thanks          derosa@ssd.comm.mot.com                       =
>=  a 10^6          N1111@applelink.apple.com                     =
You might try your locat adult novelty shop ;-)
--Shannon
From: nick+@pitt.edu (Nick C De Mello)
Newsgroups: comp.sys.mac.hardware
Subject: Cache card in DuoDock?
Date: 19 Nov 92 15:37:41 GMT
Distribution: na
Organization: Rarely
Originator: nick@unixd1.cis.pitt.edu


People:

  I understand that cache cards for the IIci and IIvx go into a special
cache slot, is it possible to put one into a nubus slot?  The reason
I ask is that all the comparisons of the Duo 230 w/dock have it comming
up close or behind the IIci with cache, and so it seems resonable to
install a cache in the Dock.  But I see no mention of a cache slot...

                                       -- Nick

-- 
   _/   _/  _/  _/_/_/   _/   _/  Sea Shells to C shells,  Waikiki to
  _/_/ _/  _/  _/   _/  _/_/_/     the Internet, a wave, is a wave...
 _/ _/_/  _/  _/       _/ _/                     
_/   _/  _/   _/_/_/  _/   _/  CompSrv: 71232,766 * I-Net: Nick+@pitt.edu
Newsgroups: comp.sys.mac.hardware
From: jmacphai@cue.bc.ca (James MacPhail)
Subject: Re: 25 MHz Mac IIsi - Another Success
Keywords: 25MHz, MACIIsi
Organization: Computer Using Educators of B.C., Canada
Date: Sun, 15 Nov 92 09:08:11 GMT

In article <baron.25@insane.sanders.lockheed.com> baron@insane.sanders.lockheed.com (Robert P. Baron) writes:

>>>It your machine DOESN'T work afterwards, can you restore the old
>>oscillator and expect it to work again? (Assuming that it fails
>>because of some marginal problem and not because you stuck your
>>soldering iron through one of the ASICs by accident.)
>  If you put in an IC socket for the cost of $0.22 then this is real easy.
>


Has anyone had problems with LocalTalk or formatting floppy disks after this
mod? Some software timing loops might not be prepared for such an unexpected
change.

I agree that going from 20 to 25 MHz is a nice improvement, but if a machine
does not run at 25 MHz, it might run at 24 etc. Similarly, I would like to
hear from those that have hooked up a pulse generator or used other means to
try speeds above 25 MHz. I see that 64 MHz appears to be a standard osc. :-)

I will attempt to summarize comments regarding other frequencies.

James MacPhail  jmacphai@cue.bc.ca  james@mirg2.phy.queensu.ca  (604) 743-2416
Newsgroups: comp.sys.mac.hardware
From: dave@nakiska.ucs.ualberta.ca (David Ross)
Subject: Re: HOW DO I rename a hard disk????????
Organization: University Of Alberta, Edmonton Canada
Date: Fri, 20 Nov 1992 17:23:19 GMT

In article <parkyn.722256513@sfu.ca> parkyn@fraser.sfu.ca (Dale Parkyn)  
writes:
> If you are still unable to rename the drive try 'Volume Name Unlocker'.
> I found it on CompuServe, where I don't know. Since it is only 3KB it
> would be more economical for me to send it to you than to try to locate
> it again. If you need it just ask.
> Dale
> parkyn@sfu.ca

There's also "Unlock Folder" from Apple which fixes this bug as well.   
It's a problem with sharing a Sys7 disk to a Sys6 machine where the Sys6  
machine crashes without unmounting properly.  The Sys7 machine will always  
think it's "in use" even without File Sharing on.  
You can find Unlock Folder on ftp.apple.com  
(dts/mac/hacks/unlockfolder.hqx), or I can get it to you.

--
David A. Ross, Programmer Analyst  | dave@nakiska.ucs.ualberta.ca
Computing and Network Services     |  (NeXTmail welcome)
352 Gen Serv Bldg, Univ of Alberta | Phone: (403) 492-9339
Edmonton, Alberta, Canada  T6G 2H1 | Fax:   (403) 492-1729
Newsgroups: comp.sys.mac.hardware
From: freek@phil.ruu.nl (Freek Wiedijk)
Subject: Re: Farewell to the Mac? (not flame)
Organization: Department of Philosophy, University of Utrecht, The Netherlands
Date: Sat, 21 Nov 1992 23:54:51 GMT

timmbake@mcl.ucsb.edu (Bake Timmons) writes:
>The guy with the SE can run pretty much the state of the art in
>software, the best of which today is more than most people need.

No.

An SE doesn't have an 68020 (and it doesn't run Color Quickdraw).
Which means that lots of applications won't run.  And not just
applications which don't make sense without color.  For instance I have
a copy of FontStudio which won't run on my SE.

There are three kinds of Macs:
1. 68000 Macs (like the SE)
2. 68020 Macs without a PMMU (like the LC)
3. 68020 Macs with a PMMU, 68030 Macs and higher

Apple is clearly trying to promote the third kind to be the
`standard'.  In fact, the only Macs still sold today by Apple are of
the third kind.

Macs of the first kind are certainly `obsolete'.  Macs of the second
kind are not obsolete _yet_.  I don't know how long that will remain
so.

Freek
--
Third theory of Phenomenal Dynamics:  The difference between a symbol
and an object is quantitative, not qualitative.
From: hausmann@iscsvax.uni.edu
Newsgroups: comp.sys.mac.hardware
Subject: Mouse 'skipping'
Date: 20 Nov 92 06:42:34 -0600
Organization: University of Northern Iowa

My mouse will 'skip' an inch or two when I am doing fine actions like
pixel-by-pixel editing of graphic items.  The mouse is about 3 years aold and
is the original that came with my IIcx.  I do use a mouse-pad.  I've opened the
mouse and cleaned every thing.  It is not an optical mouse.

Is it time for a new mouse?

-Tom

(Hey, I'm an expert in 5 or 6 applications, but this hardware stuff... :-) )
From: yeung@reed.edu (Woodrow Yeung)
Newsgroups: comp.sys.mac.hardware
Subject: Optical Drives
Date: 17 Nov 92 03:27:43 GMT
Article-I.D.: reed.1992Nov17.032743.15810
Organization: Reed College, Portland, Oregon

Hi folks,

I'm looking for information on optical drives.  I'm paritcularly interested
in magneto-optical drives using the Olympus mechanism.  Could someone give
me some specs and names of OEM using the Olympus mechanism?

Also, is the NEC CD-ROM drive equivalent to the new Apple double-speed
CD-ROM drive?

Thanks.

Woody Yeung
yeung@reed.edu
Newsgroups: comp.sys.mac.hardware
From: jbailey@world.std.com (james d bailey)
Subject: Re: Quadra 950 + what fast ext. HD? = :)
Organization: The World Public Access UNIX, Brookline, MA
Date: Thu, 19 Nov 1992 13:51:30 GMT

Joe_D._Ciarcia@fourd.com writes:


>    Just out of curiosity, how does the drive being SCSI-2 copable make
>it any greater advantage for a Quadra owner/user, since the Quadra isn't
>a SCSI-2 machine?
>----------------------------------------
>The Quadra IS indeed a SCSI - 2 machine .......................unless Apple
>changed something recentley  
>Joe C.
>********************************************************************
>System: fourd.com                                Phone: 617-494-0565
>Cute quote:  Being a computer means never having to say you're sorry
>********************************************************************
This is not confirmed but I don't believe that the Q900/950 are
technically SCSI-2, just a subset.  But they can be 16 bit wide SCSI.
There are two seperate SCSI busses each with an 8 bit connector in the
box.  All it takes is some software.  At least one company already
supports this, PLI with thier 040 Mini-Array.

If someone knows all the details about what part of the SCSI-2 spec
Apple supports I would really like to know.
From: cosc18gn@elroy.uh.edu (Alvin Carley)
Newsgroups: comp.sys.mac.hardware
Subject: Maxtor 7080SCS connected to MAC Plus,  HELP!
Date: 19 Nov 1992 03:45 CST
Organization: University of Houston
Distribution: world
NNTP-Posting-Host: elroy.uh.edu
News-Software: VAX/VMS VNEWS 1.41    

Last week I purchased a brand new Maxtor 7080SCS hard drive and I am
trying to interface it to our Mac+.  The drive is 80.7 meg, 32k buffered,
SCSI hard drive.  I am trying to use it as a second external drive,
co-connected with our primary drive, a Jasmine DirectDrive 40.

So far I have tried every format & install program I could find on it.
I have also tried things like SCSI Spy, SCSI Evaluator, and SCSI
Probe.  The programs that just look at the drive have no problem
finding the drive, but the format/install programs don't seem to see
it at all.

I would appreciate any input or suggestion I can get.  You can e-mail
me at either this address (COSC18GN@JETSON.UH.EDU) or my organization
address (PRESIDENT@SPACE-SOCIETY.UH.EDU).

I can also send you a copy of the SCSI Spy output file on the drive
if that will help figure this out.

Thank you.

               Ad Astra (to the stars),

               Alvin Carley
Newsgroups: comp.sys.mac.hardware
From: cmmiller@iastate.edu (Chad M Miller)
Subject: Re: 25 MHz Mac IIsi - Another Success
Keywords: 25MHz, MACIIsi
Organization: Iowa State University, Ames, IA
Date: Mon, 16 Nov 1992 03:48:53 GMT

>>>It your machine DOESN'T work afterwards, can you restore the old
>>oscillator and expect it to work again? (Assuming that it fails
>>because of some marginal problem and not because you stuck your
>>soldering iron through one of the ASICs by accident.)
>>  If you put in an IC socket for the cost of $0.22 then this is real
>>easy.
>>


>Has anyone had problems with LocalTalk or formatting floppy disks
>after this
>mod? Some software timing loops might not be prepared for such an
>unexpected
>change.

I have had no trouble with formatting disks (hi and double density)
nor have I had any trouble with local talk.  I have 25 MHz IIsi w/
Nubus adaptor (68882 with no Nubus card in it) running system 7.0.1.
5/80 memory config.  

Chad
From: rane+@cs.cmu.edu (Aaron Hughes)
Newsgroups: comp.sys.mac.hardware
Subject: which 24bit accelerated display board?
Date: 16 Nov 92 02:21:12 GMT
Article-I.D.: cs.BxsEJF.JKE.2
Organization: School of Computer Science, Carnegie Mellon


okok - I saw the previous discussion on this subject, but like
a fool neglected to save it.  I saw someone plugging the radius
board 24gx or something for 600 list.  What I need is something 
to use in a IIci (which is most likely what I will but if I buy 
a mac) in order to offload the video from the memory.  I will
be using this primarily for3D amination and rendering using
RenderMan and whatever other modeling packages I need. I will
also be doing MIDI sequencing and editing on this machine.  
Reccomendations for accelerated QD board is what I need (that can
drive the Apple 16" at 24bit )

thanks,

Aaron
-- 
Aaron Hughes        DoD#0482   		The Freedom Junkie	
rane+@pulsar.fac.cs.cmu.edu		Bad cop. No donut.
Newsgroups: comp.sys.mac.hardware
Distribution: world
From: Joe_D._Ciarcia@fourd.com
Organization: 4th Dimension BBS
Date: Sun, 22 Nov 1992 16:59:57 EST
Subject: Re: MIDI interface

There is a book called "MIDI for Musicians" that has a basic schematic for a
Mac MIDI interface however it is for older Macs not ADB Macs.  I suppose there
is an easy work around for that though (although I'm not sure).  MIDI for Musicians
is an extremely outdated book when it comes to hardware but it still has some
excellent infomation in it.  Have fun, Joe
********************************************************************
System: fourd.com                                Phone: 617-494-0565
Cute quote:  Being a computer means never having to say you're sorry
********************************************************************
From: rane+@cs.cmu.edu (Aaron Hughes)
Newsgroups: comp.sys.mac.hardware
Subject: Levco RenderEngine Board for RenderMan?
Date: 16 Nov 92 06:45:18 GMT
Article-I.D.: cs.BxsqrJ.A9r.2
Organization: School of Computer Science, Carnegie Mellon


I was paging through an older issue of MacUser/MacWorld
and ran across a story on MultiMedia - Sound,video,animation
etc.. (i think it was macuser) that said something about a 
board from a company called Levco that had a 40mhz i860
(Intel RISC processor) running on it that when used with
renderman would decrease th rendering time by a factor of
30 - anybody know anything about this? I couldn't find an
address or anything else about this board - no ads, no vendor
ads, no company listing etc...help?

thanks,

Aaron
-- 
Aaron Hughes        DoD#0482   		The Freedom Junkie	
rane+@pulsar.fac.cs.cmu.edu		Bad cop. No donut.
Newsgroups: comp.sys.mac.hardware
From: hemmings@telesphere.wustl.edu (T.E. Hemmings) 
Subject: Anyone heard anything about the Daystar 040 boards?
Originator: teh1@cec2
Organization: Washington University, St. Louis MO
Date: Mon, 23 Nov 1992 17:02:24 GMT

Are these things going to be similar to their PowerCache boards?

Will I be able to plug one into my IIsi - in place of the FastCache?

Thanks for any info...

Trent Hemmings

(hemmings@telesphere.wustl.edu)


Newsgroups: comp.sys.mac.hardware