calling HP 41cx gurus ...
CAM
i'm an avid, longtime HP calc user (15c, 48gx, love em both), who's
developed a sudden curiosity about the 41cx. i'm considering getting
one -- mostly for fun and hacking around, but if i take a shine to it,
it wouldn't surprise me if it gets some regular use. but i'm having a
hard time get a feeling for how this calculator works, so i'd like to
ask about some basic facts, especially about its use of modules.
(i've done a fair amount of research on hpmuseum.org, hp41.org, and
elsewhere on the internet, and these are the questions i haven't been
able to find answers for. i apologize if they're no-brainers.)
first, can modules be installed internally, or are they only installed
in the four external slots on the top? hpmuseum.org has this to say
about the differences between the 41c, 41cv, and 41cx:
"The HP-41CV was the same as the HP-41C except that it had four memory
modules built in for a total of 319 registers. (With the four ports
still available to add other modules.) The HP-41CX was the same as the
HP-41CV but added the Time module (stopwatch plus clock with alarms),
an Extended Functions / Extended Memory module, a text editor, and
some additional functions."
i'm guessing that this means the modules are part of the calculator's
default functionality, leaving four open slots at the top, as most of
the 41cxes i see for sale don't have most of these modules advertised.
but i thought i would ask anyway.
(and this is probably a stupid question ... if these functions are
indeed installed internally, then does that mean plugging the same
modules into the slots above would be redundant? i'm guessing that
this is probably the case for Extended Features, but adding more
Extended Memory modules would simply give it more memory ... however,
i'd rather know for sure.)
i'm sure i have lots of other questions, but that's all i can think of
for now.
thanks!
cam
Veli-Pekka Nousiainen
news:6fa61d46.01120...@posting.google.com...
> hello,
>
> i'm an avid, longtime HP calc user (15c, 48gx, love em both), who's
> developed a sudden curiosity about the 41cx. i'm considering getting
> one -- mostly for fun and hacking around, but if i take a shine to it,
> it wouldn't surprise me if it gets some regular use. but i'm having a
> hard time get a feeling for how this calculator works, so i'd like to
> ask about some basic facts, especially about its use of modules.
>
> (i've done a fair amount of research on hpmuseum.org, hp41.org, and
> elsewhere on the internet, and these are the questions i haven't been
> able to find answers for. i apologize if they're no-brainers.)
>
> first, can modules be installed internally, or are they only installed
> in the four external slots on the top? hpmuseum.org has this to say
> about the differences between the 41c, 41cv, and 41cx:
Four slots only
BUT
41CV has on-board RAM extension
available for the 41C as 4 plug-in RAM Modules
41CX is as 41 CV plus it has further 2 modules build-in:
Extended Functions & Time Module
that for the two previous models has to be plugged in
The CX also had even some extra XF & Time functions
> "The HP-41CV was the same as the HP-41C except that it had four memory
> modules built in for a total of 319 registers. (With the four ports
> still available to add other modules.) The HP-41CX was the same as the
> HP-41CV but added the Time module (stopwatch plus clock with alarms),
> an Extended Functions / Extended Memory module, a text editor, and
> some additional functions."
> i'm guessing that this means the modules are part of the calculator's
> default functionality, leaving four open slots at the top, as most of
> the 41cxes i see for sale don't have most of these modules advertised.
> but i thought i would ask anyway.
You're right
> (and this is probably a stupid question ... if these functions are
> indeed installed internally, then does that mean plugging the same
> modules into the slots above would be redundant? i'm guessing that
> this is probably the case for Extended Features, but adding more
> Extended Memory modules would simply give it more memory ... however,
> i'd rather know for sure.)
You can still buy two extended memory modules
that don't add to the direct usable RAM, but rather as a Harddisk
These need the XF module or 41CX which has the XF module build-in
Redundant: Yes! You don't need the modules XF/Time for the CX
nor do you need extra RAM for CV/CX.
If you have the 41CX just buy two Expansion RAM Modules to use
with the Extended Functions Module (build-in the CX Model)
and you have a whjopping 6KB of RAM
one great Module to add would be the Advantage Module.
Besides that, for hacking purposes, the PPC would be a good buy.
VPN - just take two modules and call me in the morning
zzzzzzzzzzzzzzzzzzzzzzzzzzzz
Raymond Hellstern
> Besides that, for hacking purposes, the PPC would be a good buy.
>
I'd suggest the W&W CCD module instead.
It's no 'only' for hackers,
but one of the best extensions of the 41 for many users.
It simplifies many things.
It adds many great system extensions,
such as CAT 0-F,
which includes IL cat and select,
extended CAT 1,
extended CAT 2,
nice CAT 3-7,
CAT 8-F are like CAT 2 for the plug-in modules.
Direct execute from within any CAT (2,8-F).
Also included:
direct peek and poke,
direct lower case alpha entry,
direct synthetic entry,
extended ASN,
extended XEQ,
fast matrix functions,
user interface stuff like promting and output functions,
many advanced programming aids,
like hex view,
and much more.
BTW: The matrix functions in the advantage pac
have their origin in the CCD module's matrix functions.
So as always, it depends on your needs.
I have all the modules (CCD, PPC, Advantage),
and I much prefer the CCD module.
Both the CCD and PPC ROM are somewhat difficult to get,
but it's worth a try.
Regards,
Raymond
Veli-Pekka Nousiainen
but I never owned a CCD, only PPC
so "Rainman" had to remember the details from the past
decades of HP calculators...
Veli-Pekka Nousiainen
HP-6S, 10A, 25A, 40G, 41CX, 48SX, 48GX, 49G*2, 71B*2, 75C
"Raymond Hellstern" <Raymond....@T-Online.de> wrote in message
news:9upscg$llq$05$1...@news.t-online.com...
Jeff Kilgore
and Advantage module, and I still use it quite a bit, almost as much as
my HP-49G. I've considered selling it, but I can't bring myself to part
with it.
If you're interested in synthetic programming (using opcodes that are
not normally accessible from the keyboard), the card reader is nice to
have. There is a byte-grabber program that allows you to program any
valid opcode. If you store the byte-grabber program on a magnetic card,
it's easy to reload if you create an errant program and have to reset
the calculator.
Even with calculators like the HP-48 and the HP-49G, the HP-41 is still
a very useful and fun machine.
Jeff
T. Morissette
And if you do, tell me where ...
--
Thierry Morissette
tmori...@hotmail.com
"CAM" <meg...@yahoo.com> a écrit dans le message de news:
6fa61d46.01120...@posting.google.com...
James Horn
The '41 is a fine machine - I still use mine (an original first-run 41C).
All 41s have four expansion module slots. The CV has five times the
memory (thus the name) and the CX has the other features you mentioned.
Neither has extra modules built in though - the functions of those modules
were designed into the circuitry of the calculator itself. For instance,
the 41C had 5 memory chips in it. So does the CV - but they store much
more each. *Any* HP-41 could hold up to 319 registers worth of memory
(the CV and CX had that standard). So the CV and CX can't have more
conventional memory added.
There was an extended memory module that did add more (I think the CX
includes its capability as well) but it was only accessable as sort of a
solid state file system. Handy for storing programs or data in, but only
useful for fetching 'em into regular memory and using there, if I recall
correctly. I've got that module in mine (plus the Time and PPC modules
and card reader) but haven't used it recently enough to remember all the
details.
If you approach the '41 as a 48 or 49 user, you'll be in for something of
a shock. But if you are used to the HP-15, you'll find it quite familiar
and even easier in many ways - the full alphanumeric display (HP's first,
and first LCD too) really makes programming and function use easier.
In overall flexibility, functionality, and expandability, the '41 series
still stands as a testament to HP's terrific design and support skills.
Jim Horn (Old PPC/CHHU/etc. enthusiast)
William McMannis
HP-41CX, card reader, infrared printing module, math pack, all manuals and a
supply of magnetic cards. These were all purchased new in 1988-89, except
for the cards. Those were purchased new previously for my HP-65.
I also have a couple third party 41 books that I will be auctioning
separately.
It has taken a long time for me to commit to selling these. While I like the
48GX (and my previously owned 48SX), I found the 41CX easier to create quick
and dirty programs in the field. You really cannot beat the card reader for
keeping your programs organized. When traveling I never found myself saying,
I wish I had program X to solve problem Y. I always had the vinyl wallet
with all of my "tools" in my briefcase, so I was always prepared. I
finally, after five years (?!), have my toolbox ported over the 48GX.
Look for a post here when the auction 41CX commences. I am hanging on to the
65 for sentimental reasons.
Kindest regards,
Bill McMannis
"T. Morissette" <thmori...@videotron.ca> wrote in message
news:fP8Q7.23370$4J.7...@weber.videotron.net...
CAM
Thanks for your remarks and the great information, I think you have me
convinced. :) Hopefully I can find the PPC and CCD modules, over
time.
One other quick question: What's the difference between the
"math/stat" module and the individual "Mathematics" and "Statistics"
modules? Is the "math/stat" a feature-by-feature combination of the
two, or is it more of an "all-season radial", maybe with the greatest
hits of each one?
Thanks again,
cam
HPhreacker 2002(娉)
"Veli-Pekka Nousiainen" <DROP...@welho.com> escreveu na mensagem
news:9uq5bh$qpr$1...@nyytiset.pp.htv.fi...
| Raymond has it right: CCD > PPC
| but I never owned a CCD, only PPC
| so "Rainman" had to remember the details from the past
| decades of HP calculators...
| Veli-Pekka Nousiainen
| HP-6S, 10A, 25A, 40G, 41CX, 48SX, 48GX, 49G*2, 71B*2, 75C
Do you have an HP-IL for the 71B? There is an emulator for it!
look at HPMUSEUM calculator simulations.
HPhreacker.
HP-12C,HP-15C, HP-16C, HP-25C, HP-28, HP-29, HP-38, HP-39, HP-40, HP-41,
HP-42, HP-48, HP-55, HP-67, HP-71, HP-75, HP-80(unique not programmable).
TI59, TI81, TI82, TI83, TI85, TI86, TI89, TI92+.