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HP48gx vs HP49g



#2

Hello,
Well, I have a new 48GX on the way, including a 128mb memory card. My question is how does the 48 compare to the 49 if I install Erable48 and Alg48? Do I need to install anything else to make the two comperable? How is the speed difference? Thanks.

Joe


#3

Hi, Joe;

I don't have an HP48GX because I thought that two HP48G+ would be better (having a spare is, sometimes, a life saver...). Anyway, for me the best characteristic shown in the hP49G that beats the HP48 is the upgradable O.S. (flash memory). Other than that, I see no significant advantage. In fact, I think that the keyboard organization in the hP49G is not good, the key-feeling is also bad and sometimes it's better typing a function/command name instead of trying to find where in the h... did they hide it! The [CAT] key in the HP49G allows a "fast" input mode, but the HP48 menu organization is hundreds of times better and more intuitive.

There are many other internal considerations that must be taken int account as well, but they are too specialized and I have not found myself in a situation where thay made a big difference (SYS-RPL programming, assembly lnaguage, etc.). And about the speed, I observed that in some programs the HP49G is faster, but it doesn't happen in all cases. Maybe because it has some routines optimized (it becomes faster) and the "bigger memory" ends up requesting extra bits for addressing (slowing it down). But these are only guesses, maybe I wrote a bunch of nonsense here... q8^(

I think that you'd find it a good experience testing them both the way you need, so you'll be able to add your own impressions to the ones I placed here (and others surely will), and even disagree with them.

Best regards.

Luiz (Brazil)

Edited: 13 May 2004, 1:24 a.m.

#4

Hello,

congrats for your decision!

I'd suggest to install at least two additionally packages, namely the Filer48 from Raul Del Cid Lopez, and the SpeedBrowser (from me;-)

This way you have the best file manager (Filer48) around, and the fastest configurable browser for the built-in equation library and more (SpeedBrowser). With SpeedBrowser, you can easily create your own browser windows.

Filer48 looks and feels similar to the filer in the 49g/g+ .

In general, number entry will be faster on the HP-48, because of the reliable keyboard action, you can even type relatively fast, the HP-48 has a key buffer. You can even type without looking at the calc (once you know the kbd layout), since you can be sure that what you type is what you get (on the HP-48 only).

The input forms on the 49g are faster due to many code optimizations, but the ROM upgradeability isn't a real plus for the 49g against the HP-48, because the OS of the HP-48 is simply stable,
and the very few flaws are well documented, and don't affect the user in most cases.


Raymond

#5

I would take a 48GX with a Koltz RAM card (any size, but a 128K and a 1 Meg together cost less than $100 including S&H) over a plain Frozen Hamster Butt Blue Hp49G. But the new Hp49G+ is much faster than either. And it has enough memory out of the box to be useful. If you mean the New Hp49G+, the older 48Gx doesn't really compare in speed and high end features.

When I was a field tech, I would strongly consider the older 49G because it has a RS-232 serial port which the new Hp49G+ has replaced with USB. For PC use only, that is great, but in controls you can link up with lots of instruments and download data with an older Serial connection. The older Hp49G was probably tougher and more durable than the older 48G series, but the keyboard bothers me (though it isn't bad, it just doesn't feel nearly as good as an older Hp).

Read up further about someones experience with their 48GX and a 128K RAM card. The feel and quality of the 48G series is still better than the newest 49G+'s but Hp has closed that gap.

#6

I'd recommend installing MetaKernel (on which the HP49 operating system is based) also, but that will take up an entire 128K card by itself. On my 48GX I have a 128K card and a Klotz 2MB card, with MetaKernel, ALG48, Erable, and a bunch of other software from www.hpcalc.org.


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