HDTenEightyP/NetNews huggingface dataset:
From: hades@coos.dartmouth.edu (Brian Hughes)
Newsgroups: comp.sys.mac.hardware
Subject: Re: (Q)Distinguish Duo's revB keyboard
Date: 22 Jan 93 14:18:55 GMT
Reply-To: hades@Dartmouth.Edu
Organization: Dartmouth College, Hanover, NH
Disclaimer: Personally, I really don't care who you think I speak for.
Moderator: Rec.Arts.Comics.Info

breck@saul.cis.upenn.edu (Breck Baldwin) writes:

>Other than that blasted keyboard, I really like the machine, but that
>is like saying, other than the blasted wings falling off, I really
>like the airplane.

>Its not that bad, but it needs fixing.  btw, do the 160's have the
>same problems?

    Nope. The 160 and the 180 use the standard Powerbook keyboard of the
140s/145s/170s.

--
-Brian V. Hughes 
"December 1 - What begins as a friendly transitional get-together between
 the Bushes and the Clintons ends in tragedy when Millie ralphs up what
 is later identified as Socks the cat." Dave Barry 1992 Year in Review
From: wingo@apple.com (Tony Wingo)
Newsgroups: comp.sys.mac.hardware
Subject: Re: hp deskwriters
Date: 28 Jan 93 18:04:23 GMT
Followup-To: comp.sys.mac.hardware
Organization: Apple Computer

In article <1k81ks$kea@agate.berkeley.edu>, jdsiegel@garnet.berkeley.edu
(Joel Siegel) wrote:
PC peripherals are called DeskJETS.
> 
> FWIW, I've also heard the DeskWriter C referred to as the
> DeskWriter 500C.  I'm not sure if that's official nomenclature or
> some salesperson messing up, but like I said, FWIW.

The Deskwriter C and Deskwriter 550C are different products.  The C is a
three color printer, the 550C is a four color printer.

-tony

>>usual disclaimer<<
From: vincent@cad.gatech.edu (Vincent Fox)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Radio on the powerbook!
Date: 24 Jan 1993 02:23:29 -0500
Organization: Georgia Institute of Technology, CAE/CAD Lab
Distribution: usa
NNTP-Posting-Host: cae.cad.gatech.edu

In <1993Jan23.030738.11750@mnemosyne.cs.du.edu> srasaret@nyx.cs.du.edu (Suresh Rasaretnam) writes:
> I have been playing with my powerbook on the train to and from work and
>was wondering if anyone has come up with a radio (walkman)on the
>powerbook, so we don't have to carry a walkman and the powerbook we could
>just plug our earphones to the powerbook and listen to the radio...Is this
>possible, since a (small walkman)is only 1or 2 ounces could we attach on
>to the back of the powerbook have a little control panal DA to change the
>stations, I guess one will have to use the modem port or
>somethink.......any sugestions.. also my friend has a litte casio 2inch
>tv.. how about making that work with the powerbook.  .......

Well there ought to be sufficient room in most regular PB's to accomodate
a small unrelated board. Simplest solution would be to stick it in there
and just tag onto the PB power. This would cut into the battery time and
also I would worry about the heat factor a bit. Then just patch the
audio lines in over top of the existing ones on the mini-plug.

Actually patching it into the system as a fully controllable device seems
much more ambitious to me. I haven't seen any walkman with fully digital
volume and tuning controls so some interfacing would be required.

Maybe by next year we'll all be able to buy ISDN boards with TV & AM/FM.
Plug in a pair of sunglasses with LCD's on 'em for stereo TV. Sounds
like paradise for pickpockets on a train doesn't it? Disconected citizens
with a few thugs wandering around.....

Newsgroups: comp.sys.mac.hardware
From: jimy@cae.wisc.edu (Jim Yu)
Subject: Question on modems
Organization: U of Wisconsin-Madison College of Engineering
Date: 23 Jan 93 18:27:40 CST

I use a 9600 V.42bis/MNP5 GVC modem with White Knight software.

When I call another identical GVC modem,
I can transfer ASCII files at ~960 char/sec with Z-modem protocol.
However, when I call our college's modem, also a 9600bps (unknown
brand to me), the same procedure gives me ~1200 char/sec.
Both modems reports "CONNECT 9600T/V42BIS" when connection is established.

Does anyone have any idea why one modem performs that much better than
the other? In the beginning I thought that the difference was caused by
different levels of noise in the line, at different calling times.
Today I called both modems, one after the other, and got the results above.

My GVC manual says that the T after 9600 refers to a Trelis connection
and is the fastest connection supported by that modem. It also says
that V.42bis will enable speeds up to 4 times, giving an effective
speed of 38400bps.
Well, 960 char/sec is just about 9600 bps. Where is the extra speed
offered by V.42bis? The file is compressible, as evidenced by the
college's modem. 
It just seems odd to me that the GVC will talk faster with other modems
than with one os its own kind.

Any help will be appreciated.

Jim
Newsgroups: comp.sys.mac.hardware
Subject: Re: new IIsi kerplunk?
From: seth@physc1.byu.edu
Date: 21 Jan 93 21:39:44 -0700
Distribution: world
Organization: Brigham Young University

> I have some concerns about the new IIsi that i got last week.   It
> came with a very light version of Hypercard called Hypercard Player,
> which I gather is supposed to inspire people to buy the Hypercard
> Development software.  Anyway I was trying to use the 'magic'
> command that someone said allows one to develop stacks without buyng
> the software.  I never succeeded but did succeed in having the
> computer freeze up while in the application.  There are no reset
> buttons on this Mac.  Doing command-control-shift-escape  didn't  do
> anything.  I had no choice but to turn off the power.

try command-control-powerkey to restart instead of pushing the powerbutton.
also, get MacsBug from sumex-aim.stanford.edu and aquaint yourself with the
"es" and "ea" commands, even if you do nothing at all with MacsBug it helps
to have it so in these kinds of situations you can restart the normal way and
not have to use the command-control-powerkey option.

> Also the bookstore wasn't able  to  get  the  80  mb
> drive  that  came  with  the  bundle  offer, so I was given a 160 mb
> drive, which  delights  me

Man, am I jealous! Wish that woulda happened with me 15 months ago!


Seth Leigh
BYU Physics Dept.
From: aw@camcon.co.uk (Alain Waha)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Power PC/68060/Taligent/Windows NT
Date: 28 Jan 93 09:58:42 GMT
Organization: Cambridge Consultants Ltd., Cambridge, UK

>Is this an advantage? What is a document oriented interface, anyway?

What the mac should have been in the first place:  You work on a document using
a range of tools made available to you by the applications.  Every application
work on the same document, instead of each application having each their own
document.  This is similar to what Clarisworks does for example, where you 
can edit a graphic, spreadsheet, text etc... on the same page.

This is made possible by the object oriented nature of the system software.
Each seperate element in your document is an object with given attributes.
The tools can operate on specific objects, wherever they are.  Hence the
end of the poxy graphic editor in Word, or the poxy text editor in Draw or
the forever multiplying dictionaries.

Click on an object, and all the appropriate tools you have purchased (as part
of an application) become available...  In other words, you create your
own custom integrated software as known in the current paradigm, by buying the
tools with the function you specifically require.

This is my view of how it will work & should work anyway.

Alain
Newsgroups: comp.sys.mac.hardware
From: jmacphai@cue.bc.ca (James MacPhail)
Subject: Re: Desoldering for Mac IIsi upgrade
Organization: Computer Using Educators of B.C., Canada
Date: Sat, 23 Jan 93 21:09:03 GMT

In article <4235@master.CNA.TEK.COM> florianb@chip.tek.com () writes:
>=>
>There have been several tips offered on desoldering the stock crystal
>in the IIsi. This may help others.
>
> [good suggestions for using solder wick deleted]
>
>I think the biggest challenge is to keep from slipping with the iron.
>It takes quite a lot of force to get the old xtal out.

Be warned that "a lot of force" is what destroys a lot of multilayer
boards. Yanking the plating out of the holes can remove a connection
to an inner layer that is not restored when the component is re-soldered.

My suggestion for getting the oscillator out is to leave pin 7 for last.
(pin 7 is at the corner of the oscillator closest to the fan)
Before desoldering pin 7, use your soldering iron to heat up the case of the
oscillator (on the component side of the board) near pin 7. This makes
desoldering pin 7 much easier because pin 7 is directly connected to the
metal case of the oscillator. If the case is cold, it draws heat away
from the pin rapidly. If you try desoldering in this state, the solder
is molten on the solder side, but remains solid on the component side for
a very long time, which encourages you to pull too hard.

Good luck!

James MacPhail  jmacphai@cue.bc.ca  james@mirg2.phy.queensu.ca
From: north@Apple.COM (Don North)
Newsgroups: comp.sys.mac.hardware
Subject: 68000 & Lisa VM (was Re: Motorola's 68060 for the Mac)
Date: 24 Jan 93 06:45:18 GMT
Organization: Apple Computer, Inc.

In article <D2150056.oaq0me@erics.infoserv.com> erics@infoserv.com writes:
>
>Quinn <quinn@cs.uwa.edu.au> writes:
>
>> Eric S. Smith, erics@infoserv.com writes:
>
>> >The 68000 contains no MMU, nor is it possible to implement virtual memory
>> >with the 68000 - there are some instructions that could not be restarted
>> >following a page fault.
>
>> The Lisa had an 68000 and implemented virtual memory but only for 
>> code segments.  Therefore I assume you can always manage to restart
>> instruction fetches on the 68000.  I guess that putting data in
>> code segments was frowned upon (and didn't work).
>
>I don't know how this was accomplished. When the 68000 first came out
>it was not designed to support virtual memory. At the company I was
>then working for, we did a lot of looking to see how we might get around
>the limitations that prevented implementing VM. Finally we decided that
>there were some instructions (notably the block move instructions I
>think) for which not enough information was saved on page fault to enable
>them to be restarted. Possibly Apple's compiler never generated these
>instructions? On the systems I was working on, we couldn't guarantee
>that users wouldn't program in assembly language and use these instructions.

The Lisa OS and H/W implemented a segmentation-based VM environment.  It
was not a demand-paged system as are most today (ie, Mac VM in Apple's case).
References that might cause a fault - by convention ONLY intersegment
procedure calls - had to use a calling sequence which was KNOWN to be
restartable on a vanilla 68000.  Demand paging of data references WAS NOT
supported (ie, would result in a bus error trap to the application). All
this, and a full multitasking OS and GUI on a 5 MHz 68000 in 1 Megabyte!
-- 

Don North   ----   Apple Computer, Inc.   ----   Advanced Technology Group

...!apple!north     north@apple.com      NORTH      KD6JTT     etc,etc,etc

{ Facts are facts,  but any opinions expressed are my own,  and *do not* }
{ represent any viewpoint, official or otherwise, of Apple Computer, Inc }
Organization: Stanford Linear Accelerator Center
Date: Thursday, 21 Jan 1993 09:33:27 PST
From: <HARM@SLACVM.SLAC.STANFORD.EDU>
Newsgroups: comp.sys.mac.hardware
Subject: SW I software

I posted an inquiry about software to make the stylewriter I
do the networking and grayscale which has been released with
the stylewriter II.

1. a man from apple computer com said that if we simply wait for
     QuickDraw GX these capabilities will be available for
         all printers connected to Macs.
   I think waiting is not usually simple.
2. One person said that the stylewriter II driver was working
     fine on his stylewriter I as long as he turned off the
       automatic clean cartridge before printing option.
   Is this driver a product we should buy from apple instead of
       just copying to our system folder?
   Do they sell the driver without the printer?
3. Finally, a gentleman suggested a product WonderPrint, reviewed
    in MacWorld (apparently), which may solve both needs.
   Someone in the past said it may cost around $ 60.00.

               Thank you all for taking the time to read and respond.

                              Happy New President,
                                             Jim Harm.
Just for the record:
  My postings have nothing to do with anything.  That is:
  Nobody here at work or the funding agency or the institutions
        from which I post take any responsibility for what I do or say
                               ...or post.
Newsgroups: comp.sys.mac.hardware
From: rlap2@fel.tno.nl (R.Laterveer)
Subject: Re: My Duo Battery Problem
Organization: TNO Physics and Electronics Laboratory
Date: Tue, 26 Jan 93 12:33:28 GMT

fairchil@helix.ucsd.edu (Kevin Fairchild) writes:


>From fairchil Sat Jan 23 23:32:17 1993

>After getting quite annoyed at having about a 1 minute charge left on my 
>battery, and no luck with the recharger, (and irritated that I'd have to
>take my machine in for service), I took the battery out to look at it.  When
>I put it back in, it started charging like a madman and has held its charge
>since.  (And yes, I am sure that it was _all_ the way in before.)
>Silly me, I thought that for >$2000, these machines would have better
>battery contacts than your average transistor radio.

>The Moral of the Story:  Check your Contacts.  (And thanks to those who
>emailed me and suggested this, even after the fact.)

You should also check the switch on the Duo battery. I was
wondering what the switch is used for and flipped the switch. After
that the battery would not charge anymore. With the switch back
in the old position everything worked again.

>Kevin Fairchild
>Soon-to-be-late-of-UCSD
>I hope I get my dock before I am late-of-UCSD...

Rene Laterveer

PS. Having a Duo which will not start up anymore while
its floppy adapter is still on backorder is no fun ;-[

-- 
/==================================================================\
| Rene Laterveer                                                   |
| FEL-TNO Physics and Electronics Laboratory                       |
| Netherlands Organization for Applied Scientific Research         |
Newsgroups: comp.sys.mac.hardware
From: ray@netcom.com (Ray Fischer)
Subject: Re: 21M Flopticals?
Organization: Netcom. San Jose, California
Date: Thu, 28 Jan 1993 17:45:06 GMT

ferch@ucs.ubc.ca (Les Ferch) writes ...
>>I think each 21meg disk costs over $10 right now. And you have to buy
>>them in boxes of ten. 
>
>I'm sure all floptical owners are hoping for lower disk prices (I would if
>I had one) but $10 for 21M is less than $0.50 per megabyte. That's pretty
>good compared to other media (e.g. 88MB Syquest cartridges are around a
>$1.00 per megabyte). 

And 150MB cartridges are around $1.20 per megabyte.

For fast, cheap, storage, I still haven't seen anything better than
the magneto-optical drives.  Disks are as cheap as $0.28 per megabyte
and the drives are as about 80% of the speed of a Quantum 210 hard
drive.

-- 
Ray Fischer                   "Convictions are more dangerous enemies of truth
ray@netcom.com                 than lies."  -- Friedrich Nietszsche
Newsgroups: comp.sys.mac.hardware
From: ray@netcom.com (Ray Fischer)
Subject: Re: Quadra 700 questions..
Organization: Netcom. San Jose, California
Distribution: na
Date: Thu, 28 Jan 1993 18:05:07 GMT

danmcd@cs.arizona.edu (Daniel L. McDonald) writes ...
>One small thing, though.  Dale's chart is very handy, but what about 16-bit
>resolutions?  Doesn't QuickTime work optimally in 16 bits?  I'd like to have
>a built-in video system that supports it.

The Macs that handle 16-bit color directly are the Q950, the IIvx, and
(maybe) the LCII.  Don't know about the Performas (I _hate_ that
name).  Pretty sure bet that a Q700 in 24-bit color will do QuickTime
faster than a IIvx in 16-bit color.

-- 
Ray Fischer                   "Convictions are more dangerous enemies of truth
ray@netcom.com                 than lies."  -- Friedrich Nietszsche
From: nagel@kithrup.Irvine.CA.US (Mark D. Nagel)
Newsgroups: comp.sys.mac.hardware
Subject: Need power supply repair or replace for IIfx
Date: Sat, 23 Jan 93 10:33:51 PDT
Reply-To: nagel@Kithrup.Irvine.CA.US
Distribution: usa
X-Mailer: uAccess - Macintosh Release: 1.6v1

A friend of mine has a IIfx with an apparently dead power supply.
She's looked into replacing or repairing it, but the prices seem too
high to her.  She found one place that will sell her a new one for
$220 and another place that will repair the one she has for $180.
Does anyone know of a place where either a repair or replacement could
be done for less than $180?

-------------------------------------
Mark Nagel <nagel@mdn.uucp>

If at first you don't succeed, that's pretty much it.
				-- SDI Design Team
Newsgroups: comp.sys.mac.hardware
From: gaia@wam.umd.edu (L. Anathea Brooks)
Subject: PB 140 in 145's case?? Summary?
Organization: University of Maryland, College Park
Date: Thu, 21 Jan 1993 19:11:30 GMT

Hello,

A few days ago I posted a question about my wife's PB 145. I 
had read that Apple had shipped some PB 145's which had 140 innards
in Macweek. I tested with Speedometer and thought she had got
one of these.

To summarize, I was told that the PB 145 has the same ROMS as the 140,
and the only way to ascertain was to open the PB and look to 
see if the 68030 says 25 mz or 16. 

I haven't done this, but one piece of email told me that the 145's 
have 4 megs of RAM soldered to the motherboard. In that case, why did
Apple include 6 megs in hers, with a note attached which reads:

"Due to a shortage of parts, we are shipping this PB with 6 megs of memory.
This satisfies the request for a 4 meg machine". (In fact! ;-).

Either my info's wrong or something is odd... I don't know much about
this PB business, my main machine's a Nextstation Turbo...

Any info would be appreciated. The PB does seem a bit slow for a 68025 at 25 mz...

Brooks
From: escaffre@cix.cict.fr (Christian Escaffre)
Newsgroups: comp.sys.mac.hardware
Subject: LC II and Ethernet card
Date: 27 Jan 93 09:41:28 GMT
Organization: Centre Interuniversitaire de Calcul de Toulouse
Keywords: LC II, coprocessor, Ethernet card

I have an LC II with a coprocessor, i want to by an Ethernet card and the 
saler said to me there was a coprocessor on this card
are these two coprocessor compatible and necessary?
and what are there real functions?
From: dan@cafws2.eng.uci.edu (Dan Harkless)
Subject: Re: MIDI and the IIvx
Newsgroups: comp.sys.mac.hardware
Organization: University of California, Irvine
Date: 25 Jan 93 04:53:58 GMT

In article <C16ICD.3GG@irvine.com> billy@irvine.com (*** Bouncer **) writes:
>>>>I have no doubt that Apple knows about the problem and will put
>>>>whatever resources they can into working on it.
>>>
>>>Joke. Yes?
> 
>bskendig@netcom.com (Brian Kendig) wrote:
>>Well, they fixed the Powerbook serial port problem.  That earns them a
>>gold star in my book...
>
>Well, what Powerbook serial port problem did they fix?  Are you possibly
>referring to the MIDI serial problem?  The Powerbook problem was caused by
>something completely different than the IIvx problem.  If you are aware of
>Apple fixing the PB serial port (particularly regarding MIDI sysex stuff),
>then please post your findings and how Powerbook MIDI users can get this
>updated as well :-)

	This implies you know the cause of the IIvx problem.  What is it?
I still haven't seen a clear answer on this one.

------------------------------------------------------------------------------
| Dan Harkless                | "The sore in my soul                         |
| dan@cafws1.eng.uci.edu      |  The mark in my heart  ->  Front 242,        |
| dharkles@bonnie.ics.uci.edu |  Her acid reign..."        Tragedy >For You< |
------------------------------------------------------------------------------
From: wagner@grace.math.uh.edu (David Wagner)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Motorola's 68060 for the Mac
Followup-To: comp.sys.mac.hardware
Date: 21 Jan 93 09:14:30
Organization: UH Dept of Math
	<1993Jan18.024452.20791@bilby.cs.uwa.edu.au> <mhk=Av+@engin.umich.edu>
	<noah-200193075654@noah.apple.com>
NNTP-Posting-Host: grace.math.uh.edu
In-reply-to: noah@apple.com's message of 20 Jan 93 16:14:40 GMT

It's nice to have all of these facts about size of registers,
data bus, clock speed, etc.  But nobody had said anything
about numbers of registers.  For example, the 68881 has 
8 extended-precision floating-point registers.  By way of
comparison, the RS/6000 has 32 (double precision?) floating-
point registers.  I believe the comparisons for integer and
address registers are similar, but I don't actually know.

Clearly a processor can run faster if it can keep data in registers
rather than writing values out to memory and reading them back in
again when needed.  Cache helps in this regard, but not quite as much
as registers.  However binary compatibility for software demands that
processors have the same number of each type of register, or else only
the minimum number of registers will be used.  Hence I would expect
that the 68060 will have the same register architecture as the
68030/68882.

David H. Wagner
You didn't hear it from me!
Newsgroups: comp.sys.mac.hardware
From: mlaurenc@world.std.com (Matt Laurence)
Subject: HELP! M-O trauma has struck!
Organization: The World Public Access UNIX, Brookline, MA
Date: Thu, 21 Jan 1993 05:44:53 GMT

I have a dgr 3.5" magneto-optical drive that takes the standard 3.5"
128 MB cartridges, and it's worked pretty well up until now. And,
as far as I can tell, the drive is still working fine, but one of
the cartridges (only one out of four) refuses to mount. It was
formatted properly, same as the other three, with FWB's HDT Lite,
and I've been using it without fail for some time. For a while,
my computer was out of commission, so I moved the drive to an SE
running system 6.05, and it worked fine. When I switched the drive
back to my IIcx, however, this one cartridge refused to mount. It
goes in and sounds like it's mounting, but then it clicks a few
times, finally spinning down as if it's about to eject the disk, 
but it then instantly spins up again to try again. If I hold the 
eject button in, it eventually spits out. But it will NOT mount,
no matter what I do. All the others work fine, even those I used when
the drive was on the SE (I didn't expect any problems with any of
them).

This cartridge hasn't been unduly abused, exposed to any temperature
extremes or anything... does anyone have an idea why this reputedly
indestructible medium might suddenly go sour on me? I have a LOT of
vital data on there, and I really don't want to revert to an expensive
data recovery service to get it off...

ANY help or suggestions would be MUCH appreciated.

Matt
mlaurenc@world.std.com

Xref: sparky comp.sys.mac.hardware:26789 comp.sys.mac.comm:13378
From: pino@gammow.berkeley.edu (Jose L. Pino)
Newsgroups: comp.sys.mac.hardware,comp.sys.mac.comm
Subject: PowerBook (Duo) connection to Sparc
Date: 24 Jan 1993 18:31:42 GMT
Organization: U.C. Berkeley -- ERL
Distribution: world
NNTP-Posting-Host: gammow.berkeley.edu

I have a powerbook that I occasionally take to work. On my desk at
work I have a IPX with serial ports a&b.  First, the serial connections
on the sparc look the same as a mac (RS422?).  Do sparcs with this
connector share the same serial port pinout as macs?

Secondly, has anyone ever connected a mac to a sparc this way?  What
speeds will the connection be able to support?  Also, I have heard of
CAP, but have not had a chance to ever use it.  Is CAP capable of making
the serial port connector of a Sparc look like localtalk?  Is this
possible or would special hardware be needed to support this?  If
it is possible, would the Sparc serve as a bridge to the ethernet for the
mac?

Thanks in advance!
Jose
pino@eecs.berkeley.edu