HDTenEightyP/NetNews huggingface dataset:
From: mjg51721@uxa.cso.uiuc.edu (Michael James Gebis)
Subject: Re: Mouse (was: Wish list, serial ports, and a wacky idea.)
Organization: University of Illinois at Urbana
Date: Tue, 14 Apr 1992 02:58:03 GMT

YAUATHT (Yet another useless addition to this thread...)
	If you're going to put an additional power source in the mouse to 
take away strain from the HP, why not MOTORIZE the mouse!  Think about it...
this way, the mouse can move itself, without human intervension!  This would
provide a VERY useful service to use without remote controlled televisions...
instead of making the HP into a IR remote, you could just program the mouse to
WHEEL over to the TV and change the channel manually!
:)

Mike Gebis  mjg51721@uxa.cso.uiuc  OR  m-gebis@uiuc.edu
"AIM MY SMILING SKULL AT YOU"
Date: Mon,  6 Apr 92 22:13:30 +0000
From: Wolfram_Sauerteig@hippo.fido.de (Wolfram Sauerteig)
Subject: Re: Worn Displays.. HP missed a problem
Newsgroups: comp.sys.hp48
Distribution: world
X-Comment-To: frechett@spot.Colorado.EDU (-=Runaway Daemon=-)
Organization: SauerSoft 


-D> BTW... I have checked this on over 10 calcs and they are all starting to 
show
-D> the line on the display, and it cannot be removed.

My calc also showed this line, but it was possible to wipe it out; maybe, it's 
a question of discovering it as early as possible...

ciao,
    Wolfram

Newsgroups: comp.sys.hp48
From: stat656@unixg.ubc.ca (John Paul Morrison)
Subject: Re: New 48 Stuff at EduCALC
Organization: University of British Columbia, Vancouver, B.C., Canada
Date: Tue, 7 Apr 1992 04:57:47 GMT

In article <BSON.92Apr6171618@kropotkin.gnu.ai.mit.edu> bson@kropotkin.gnu.ai.mit.edu (Jan Brittenson) writes:

>Finally apply the ultimate in calculand electro-shock therapy -
>reverse the batteries <gasp>!

While I have not tried this (and I don't plan too either!!!!), 
I wouldn't be surprised if this didn't do anything (anyone want to verify ;^) 
Given that the HP48 is not a poorly designed machine, and that it has to
provide several different voltages, I think the 48 has at a **minimum** a diode
in series with the batteries to prevent reversing the polarity, and to
prevent the batteries from sucking power *from* the calculator if the
batteries were at a low voltage (from something in the calc, like the capacitor
that keeps a "standby" voltage on the RAM). I'd be very surprised if the 48
didn't have a solid state voltage regulator, which I bet would handle the
reverse polarity quite nicely.

Of course I;m guessing, but these would seem like reasonable design procedures.
I also wouldn't be surprised if shorting the battery contacts (with  no 
batteries in of course) did not drain the internal capacitor either.




>
>--
>						-- Jan Brittenson
>						   bson@gnu.ai.mit.edu


--
__________________________________________________________________________
 John Paul Morrison                     |
 University of British Columbia, Canada |
 Electrical Engineering                 |   .sig closed for repairs
From: clemon@lemsys.UUCP (Craig Lemon VE3XCL)
Newsgroups: comp.sys.hp48
Subject: Re:  Worn Displays
Distribution: world
Date: 13 Apr 92 06:58:39 EDT
Organization: Private UUCP "Twig" Node

In article <14645@vela.acs.oakland.edu> bamarche@vela.acs.oakland.edu (Arron Marchese) writes:
>Wow this is really strange. I have had my HP48 for about 21 months now
>and have NO signs of wear. I think that I've seen what your talking
>about on other HPs but mine doesn't exhibit such signs. I use it often
>and it is a made in USA model. Also has anyone else noticed that for a
>while the HP48 screens ewere lighter and NOT as green as the ones being
>made now. My screen is grey (and much eiser to look at :-) as oposed to
>most of the ones I see which are a strong green. Oh yeah I have a
>zipper case.

        Actualy mine is a strong blue with areas of strong blue (ie. even
when the calc is turned off) in each corner of the display.  It's worse on
the left side, however.

--
 Craig Lemon VE3XCL - Kitchener, Ontario. Amiga B2000  OS 2.04  UUCPv1.15D.
 +1 519 741 0297    +1 519 578 7817              | Silly people!  We all
 clemon@lemsys.UUCP clemon%lemsys@xenitec.on.ca  | know that the Universe
 IP/Packet: ve3xcl@ve3xcl.ampr.org [44.135.84.51]| revolves around UUNET!
From: forrepr@eng.auburn.edu (Philip R. Forrest)
Newsgroups: comp.sys.hp48
Subject: HP FTP Freshman
Date: 8 Apr 92 04:21:12 GMT
Reply-To: forrepr@eng.auburn.edu
Organization: Auburn University Engineering

I've had my 48 for 2 years (velcro, no line) and in all that time, I've
never imported an application into my beloved HP from someone that I did
not know. I was wondering...before I pull anything off the FTP, has anyone
here ever experienced a nasty thing such as a 48SX _VIRUS_ ?? The thought
of importing an alien program and having it eat all my other stuff doesn't
sit too well with me...

Phil Forrest - A NASA/JSC Co-op student who hates being back at school :-(
From: willegen@research.ptt.nl
Newsgroups: comp.sys.hp48
Subject: Re: Automatic files
Date: 13 Apr 92 10:44:56 GMT

In article <92103.203812MKHORTOP@MTUS5.BITNET>, MKHORTOP@MTUS5.BITNET writes:
> Is there a name I can give a file to make it run automatically
> when I turn my HP on or switch directories? (In other words,
> an autoexec file)  I would like tp be able to change modes
> (DEC to RAD and back again) depending on which directory I change
> to.
>                                Thanks
>                             Matt Hortop
>                        mkhortop@mtus5.cts.mtu.edu
> 
> P.S. I apologize for not having a creative signature.

Try the ALICE program.

Christ
Newsgroups: comp.sys.hp48
From: al186@cleveland.Freenet.Edu (Mark Spaeth)
Subject: HP-Pacman in ENGLISGH
Organization: Case Western Reserve University, Cleveland, Ohio, (USA)
Date: Fri, 10 Apr 92 16:08:19 GMT


I've translated the text from the pacman programs into english
and edited the pacspr grob to get ride of a few bad bits and
kmake the t[Dboards liook a little nicer...

If anyone wqants this, I can try to put it up...


Also:  I'm looking into creating new bords to go with pacman...
Hans anyone tried this?
Are you limited tho the sizes of the current boards?
Do you have to use square boards?

If mpossible, I'll try to put in the boards from Ms. Pacman
or something like htat to lmake it a little more "authentntic..."

-- 
__   _  ___     __   _
|_) (_` |_  | | | \ | | |\| \ / |\/|            al186@cwns1  i
|   ._) |__ !_! |_/ !_! |\|  |  |\/| lives...                s  Mark Spaeth
Newsgroups: comp.sys.hp48
Newsgroups: comp.sys.hp48
From: ruhtra@turing.toronto.edu (Arthur Tateishi)
Subject: Re: reversing batteries (was New 48 Stuff at EduCALC)
Organization: CSRI, University of Toronto
Date: 13 Apr 92 16:53:29 GMT

In article <1992Apr13.141609.679@news2.cis.umn.edu> fin@unet.umn.edu (Craig A. Finseth) writes:
>In article <KyjSq*yg1@mania.hotb.sub.org>, lkv@mania.hotb.sub.org (Lutz Vieweg) writes:
>|> > In article <BSON.92Apr6171618@kropotkin.gnu.ai.mit.edu> bson@kropotkin.gnu.ai.mit.edu (Jan Brittenson) writes:
>|> > >Finally apply the ultimate in calculand electro-shock therapy -
>|> > >reverse the batteries <gasp>!
>|> it may sound unbelievable - but it _works_! A friend of mine had an
>|> awful crash on his 48sx, and both pressing RESET and taking out
>	...
>
>This question came up at the recent Philadelphia conference.  The
>answer -- from an unnamed person who had to travel from the west coast
>-- was simple:
>
>			* * * * DON'T * * * *
>
>You risk permanent damage to the 48.

Ditto. I've had problems with some electronic equipment related to the
capacitor that keeps memory intact between battery changes.
The solution I've found is to short the battery leads together and
press ON a few times. This should safely discharge the capacitor.
Put fresh batteries in and all should be fine. Since I'm not applying
any voltage, I can't see this harming the calc.

-- 
"The first fact to face is that UNIX was not developed with security, in any
reliable sense, in mind; this fact alone guarantees a vast number of holes."
    -- "On the Security of UNIX", Dennis M. Ritchie
Arthur Tateishi                 ruhtra@turing.utoronto.ca
From: kuechenm@taurus.cs.nps.navy.mil
Newsgroups: comp.sys.hp48
Subject: Partial Fraction Expansion
Date: 4 Apr 92 17:13:39 GMT
Organization: Naval Postgraduate School, Monterey CA

I've tried to find a routine for the HP48 that will do partial
fraction expansion the way the Math application card does. On the ftp
sites I've checked, I haven't seen anything that looks promising. Does
anyone know of such a routine, or of a algorithim for PFE?

Thanks much.
Dave
Newsgroups: comp.sys.hp48
Subject: *** ASC-> ***
From: Steve_Grant@kcbbs.gen.nz (Steve Grant)
Date: 6 Apr 92 23:09:17 GMT
Organization: Kappa Crucis Unix BBS, Auckland, New Zealand

Could someone please send me ASC, and give very precise instructions 
on how to send it to my 48SX as I am very new to cables. Ta. 
Also any one who has the 3D graph prog, can you tell me the format for 
d/l to my 48SX, as it would'nt d/l (I was'nt using kemit) I was using 
PDL and it had a spew at the end statements in the prog.

Thanks 

Later Steve
From: dxs3726@hertz.njit.edu (Double Double)
Newsgroups: comp.sys.hp48
Subject: hidden directory ???
Date: 6 Apr 92 21:39:06 GMT
Organization: New Jersey Institute of Technology, Newark, N.J.
Originator: dxs3726@hertz.njit.edu


	What is the hidden directory?  I've been this group for 
about a month now, and every once in a while someone mentions
the hidden directory.  It's not port 0, is it?

-Thanx

Dave   		dxs3726@hertz.njit.edu
Newsgroups: comp.sys.hp48
From: rkbg2554@uxa.cso.uiuc.edu (Robert K. Brunner)
Subject: Re: Wish list, serial ports, and a wacky idea.
Organization: University of Illinois at Urbana
Date: Mon, 6 Apr 1992 06:02:49 GMT

mjg51721@uxa.cso.uiuc.edu (Michael James Gebis) writes:

>I have two points to make, one serious, one kinda wacky.
>	1)  How come the HP48 doesn't have a FULL serial port....you know, with
>nine pins?  (I can think of several reasons, but don't think any outweigh the
>benefits a REAL serial port would give.)

A full RS-232 serial port has 25 pins (It also uses 12 v signals, I
believe).  The nine-pin version was invented by IBM when the PC-AT
came out. The nine-pin serial port has some of the handshaking lines
defined by the standard, but most hardware can get by without them, so
I think its a good idea to leave them off when space is at a premium.
It would have been nice if HP had decided to use a standard connector,
however.

About point 2:
Even though you didn't want a response, I thought I would throw this
in.  Mouse interfaces demand an interrupt-driven serial port running
at 9600 bps for good response.  I think this wouldslow down the
calculator considerably.  It would also be difficult to use the
calculator as a handheld. (Maybe a trackball would work though :-)).

Robert Brunner
brunner@uirvld.csl.uiuc.edu
From: edp@math.zko.dec.com (Eric Postpischil)
Newsgroups: comp.sys.hp48
Subject: Re: HP 95 LX
Date: 17 Apr 92 12:34:16 GMT
Reply-To: edp@math.zko.dec.com (Eric Postpischil)
Organization: Digital Equipment Corporation

In article <1992Apr16.181842.1361@uni2a.unige.ch>,
vuilleum@uni2a.unige.ch writes:

>-       Do somebody know if the Ramcards are the same as those for the
>HP 48 ?

The cards are physically different; they are not interchangeable.

> Do you know were it could be possible to purchase them for cheaper
> than at HP ?

Educalc sells other vendor's cards.  Other cards might or might not be
worse as far as battery drain and other features.  You can probably get
Educalc's 800 number from Directory Assistance (800-555-1212) if you are
in the United States.

>-       Do you know if it exists "do-it-yourself" RAM/PROM cards ?

They exit, but I don't have the specifications.  Check with Educalc,
perhaps.  Also, the 95 is discussed more in the group comp.sys.palmtops;
you should ask there.

>-       Is there an infra-red eighty-columns printer ?

HP makes an infrared-to-LaserJet interface which lists for $129.


                                -- edp (Eric Postpischil)
                                "Always mount a scratch monkey."
                                edp@alien.enet.dec.com
Newsgroups: comp.sys.hp48
From: bgribble@jarthur.claremont.edu (Bill Gribble)
Subject: Re: Security devices for exams (was something else...)
Organization: Harvey Mudd College, Claremont, CA 91711
Date: Thu, 16 Apr 1992 19:54:05 GMT

In article <1992Apr16.123747.16384@jarvis.csri.toronto.edu> ruhtra@turing.toronto.edu (Arthur Tateishi) writes:
>Exactly. So don't allow ANY calculators/laptops/portables into the exam.

The very idea of this is amusing.  How could you test any knowledge of 
science or engineering material without some form of calculation?  

>Last term, I was in a class with a professor who actually had the class
>VOTE for the style of exam they wanted. The big question was open book
>vs closed book. The support was pretty overwhelming for a closed-book,
>calculators allowed, plus a few equations on the exam.

>I pushed for open-book w/ no calculators and said that my calculator(hp48)
>was just too powerful. The prof said he trusted me(he knows me, he was right).
>Well, the thing that bothers me is that I saw some people transferring
>notes between hp48's before the exam.

Rather than argue test theory, I'll give a little data about my situation:
I'm a 3rd-year engineering student at a primarily engineering school.
Out of roughly 75 engineers in my class, I'd say 15-20 have hp48's.  At
least that many more have 28S's.  All our tests are open-book, open-notes, 
and there are no restrictions on calculators or what's in their memory.  

Do you think this is too easy, or that we aren't learning anything?  
Wrong.  I haven't had an engineering test that I can recall where the
mean was above 65 percent, and Harvey Mudd is a well-respected school.  I
haven't done a statistical analysis, but from personal observation the 
correlation between high test scores and hp48 ownership is very small.  
This to me seems like "real life": the test is not of your ability to 
formula-monger but of problem-solving and your grasp of the concepts.

>Arthur Tateishi                 ruhtra@turing.utoronto.ca

Bill

Newsgroups: comp.sys.hp48
From: ervin@pinbot.enet.dec.com (Joseph James Ervin)
Subject: Re: Worn Displays Understood
Reply-To: ervin@pinbot.enet.dec.com (Joseph James Ervin)
Organization: Digital Equipment Corporation
Date: Fri, 17 Apr 1992 13:25:07 GMT


With all due respect, Ian, I don't think the problem is conclusively
understood yet.

I am still bothered by the apparent lack of consistency in the 
reports of whether people do or do not have the "line".  I 
can't blame normal dirt/oil for the problem, as I have had my calc
for 1.5 years now and have never cleaned any part of it.  I 
remove/insert it from the (yes, zipper) case at least 2 or 3 times
daily, and I have no evidence of a line.

About the closest thing I've seen to a "line" are faint traces of 
lint on the top half of the screen where the case's felt liner does
_not_ rub (because of the quick reference card).  I only noticed
the lint after very careful examination, and it simply brushed off
like you would expect.

I have no clue what the "line" that other people are getting is.  I 
have never seen it, and in my opinion the data is still very 
inconclusive.

>>>Joe
From: clemon@lemsys.UUCP (Craig Lemon VE3XCL)
Newsgroups: comp.sys.hp48
Subject: Re:  HP48 - questions and comments
Distribution: world
Date: 15 Apr 92 15:28:36 EDT
Organization: Private UUCP "Twig" Node

In article <11413@mindlink.bc.ca> Rob_Prior@mindlink.bc.ca (Rob Prior) writes:
>I think it depends on a few parameters just how far the 48 will transmit...
>Mine has transmitted across a 15ft basement to control a big-screen TV as a
>remote.  I think that the main factor here is battery life, though... With new
>bateries in my calculator and a friends I can achieve about 3ft of separation
>between calculators during transfers.  When the batteries are old, however,
>this drops to the stated 4-5 inches.
>
>ROb

        What HP has done to achieve the short-range specification on IR
transfers that allowed them into many classrooms was to desensitize the
receive end of the transfer.  This means that the transmit intensity is
still high meaning that a good healthy range is possible for
uni-directional transfers (ie. printers and remote controlling as you
mentioned).  Just because your TV sees the signal 15 feet away doesn't mean
another 48 will.

--
 Craig Lemon VE3XCL - Kitchener, Ontario. Amiga B2000  OS 2.04  UUCPv1.15D.
 +1 519 741 0297    +1 519 578 7817              | Silly people!  We all
 clemon@lemsys.UUCP clemon%lemsys@xenitec.on.ca  | know that the Universe
 IP/Packet: ve3xcl@ve3xcl.ampr.org [44.135.84.51]| revolves around UUNET!
From: willegen@research.ptt.nl
Newsgroups: comp.sys.hp48
Subject: Re: Worn Displays
Date: 9 Apr 92 07:34:07 GMT

My calc is 1.5 years now, has the zipper case AND a line on the display.

Christ

<<< Could you BELIEVE I don't have a .sig? >>>
From: willegen@research.ptt.nl
Newsgroups: comp.sys.hp48
Subject: Re: HP FTP Freshman
Date: 15 Apr 92 07:30:50 GMT

In article <1992Apr10.155416.21771@math.ufl.edu>, x9999bvi@maple.circa.ufl.edu writes:
> In article <1992Apr8.223804.2966@ucsu.Colorado.EDU>, frechett@spot.Colorado.EDU
>  (-=Runaway Daemon=-) writes:
>>Unfortunately, there is such a beast.  I don't remember exactly how it spreads
>>but it is VERY small and the design is pretty clever.  It will make your
>>calculator crash.  There is a program to clean it out of your calculator.
>>
>>It's not over overwhelming concern though as it is not very widespread at all.
> 
> 	Some details would be nice.  And where is this program?
> 
> -Steve :)
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> Steve Morgan 			LTCOMDATA%maple.decnet@pine.circa.ufl.edu
> Univ. of Florida			Singing the days away...
> 
> 	Need to babble?  Drop a line.  Mail makes me happy ==>  8D
> -------------------------------------------------------------------------------

As you might have guessed, I have it. If there are no objections, maybe i could
POST a list of all the software I have for the HP48 or related IBM-PC software.

Christ
Newsgroups: comp.sys.hp48
Subject: HP48 - questions and comments
From: sterba@vax.sonoma.edu
Date: 10 Apr 92 13:24:48 -0800
Organization: Sonoma State University

Alright.  I admit it.  I am a beginner.

I just got my new HP48SX last week and although I spent over 40 hours trying to
learn as much as I can about it during that time, I still don't know how
to run/execute many of those neat programs I see around FTP sites.  I
downloaded them to my UNIX account and from there onto my PC and then into my
'Calculator' (if I can dare call it that?).  The program name shows up on
the 'SOFT' menu and when I press the key it gives me machine language argument
instead of being executed.  The appointment program that comes with the PC-Link
cable (from HP) starts running automatically after I press the softkey.  Do
these other programs work differently?  Also, is there a difference in
execution of programs obviously in binary code and those that are in ASCII?

Also, these expansion RAM cards...  What sizes (and according prices) are
available?  Does large memory speed up or slow down general operations and
program executions?

Are there Hardcover cases for the 48SX?  I really think Hewlett Packard screwed
up on the case they include with the machine...  This is just about the most
expensive 'calculator' (here I dare calling it that again) around and they
don't include a decent protection for it.  Wouldn't it be great (and cheap) to
have a cover similar to those available with great majority of Texas
Instrument calculators?  They slide on a groove and when you use the
calculator, they form the base.  When you want to carry it around in your bag,
the sliding case covers the display and the keybord.  Even their $10 product
has it, why couldn't HP's $300+ one, too? Zheeeez....

Also, don't you guys think this HP48 is totally the most GADGET-COMPATIBLE toy
you can get?  I had to laugh when I found out what stuff it does...  Infra-red
file transfers (ie. across the classroom during exams), cordless printer, all
these weird cards, large RAMs, Gameboy-stile videogames, and - for god's sake -
it can even be used as a remote control for your VCR!!!  Next thing you know
calculators will even add and subtract!

Thanks for your help with the earlier-listed problems...

Peter Sterba
Sonoma State University
544 Santa Alicia
Rohnert Park, CA 94928
USA

GADGET-COMPATIBLE toy
From: fv@LINK.Physchem.KTH.SE (Fredrik Viklund)
Newsgroups: comp.sys.hp48
Subject: Simple security
Date: 16 Apr 92 15:51:51 GMT
Reply-To: fv@LINK.Physchem.KTH.SE
Organization: Royal Institute of Technology, Stockholm

Just an idea...

Put a program in your root directory called for example COFF:
\<< OFF COFF \>>

When you want to switch your 48 off, you execute COFF and it's easy 
protected from your class mates, girlfriends or whoever just wants to 
play around with your calc.

(To switch it on again, push ON twice, *FAST*.)

Easy to pass for the experienced user, but quit usefull, I think.
And it doesn't cost you many bytes of memory.

	/Fredrik

+-------------------------------------------------------+
| Fredrik Viklund       To be or not to be,             |
| FV@Chemstud.kth.se    Thats true.   /Boole            |
+-------------------------------------------------------+
Hi  I'm a .sig virus  copy me into you .sig to join in
From: Rob_Prior@mindlink.bc.ca (Rob Prior)
Newsgroups: comp.sys.hp48
Subject: Re: Re: Security devices for exams (was something else...)
Date: 16 Apr 92 17:58:29 GMT
Organization: MIND LINK! - British Columbia, Canada
Distribution: world

] elsalmon@hmcvax.claremont.edu writes:
] 
] Is this what passes for ethics?
] 
] I know people tend to rationalize even blatantly immoral behavior, but this
] is
] some of the weakest rationalization I've ever seen.  Why on earth does buying
] an expensive gizmo entitle you to a grade you couldn't earn otherwise?
] 
] Too many people believe that life is all about money.  So many believe it, in
] fact, that it's started to come true.  Do you also believe that education is
] about money?  Is it a matter of learning something, or buying your way
] through?

No, not quite the scenario... Don't go to learn, go to buy your way
through, then get a job that pays GOBS of money as soon as you graduate.
I think you'll find there are a lot of people at university for this reason.
Pisses me off big-time, too.
] 
] Somebody ought to show all your professors where your calculator's hardware
] reset button is.  You deserve it.

Agreed.  A better idea?  Take away his 48sx before the exam, give him an 11c.
See how well he does without his 32 (+128+128)K of stored notes.

--
 _______________________________________________________________
|Rob Prior - President, Still Animation Logo Design, Burnaby, BC|
|---------------------------------------------------------------|
|            Mail to: a634@mindlink.uucp                        |
|   ___  _        or: !uunet!van-bc!rsoft!mindlink!a634         |
|  /__  /_\    "You must find us.... a shrubbery!!!!!!"         |
|____/ /   \____________________________________________________|
Organization: University of Maine System
Date: Wednesday, 15 Apr 1992 10:24:18 EDT
From: robert eric beckwith <IO20081@MAINE.MAINE.EDU>
Newsgroups: comp.sys.hp48
Subject: ram card ?'s

I am going to order a ram card next week, and the one that
I want is TDS 256K.  From what I have read it is good. anyone
want to voice their opinions. (the only other one I might
consider is HP 128K card.  Looking for some users opinions/
suggestions.
also is the TDS battery backed?
thanks in advance....robert
Newsgroups: comp.sys.hp48