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HP 48 & HP 49...1999 and 2003 releases



#7

Hi, could you tell me the difference between these models? It seems that HP kept the 48 and 49 series alive making new releases of both in 1999 and 2003…


1999….HP-48 G+ and HP-49 G

2003….HP-48 GII and HP-49 G+


Thanks…


#8

The 48G+ is nothing more than a 48G with 128 KB RAM (but no expansion slots). The 49G was the first major redesign, with a significant software update (Metakernel, etc), and lots more internal RAM (512 KB, plus 2 MB flash). Plus a keyboard that is probably the worst that has ever been included on any calculator in the history of calculators.

The 49G+ (and 50G and 48GII) is a complete hardware overhaul - it runs on the ARM CPU, and simply emulates the old Saturn architecture in software. In terms of software capabilities, it's pretty much the same as the 49G, but with a much less atrocious keyboard. The 49G+ and 50G have SD card slots, though I don't think the 48GII does. The 49G+ and 50G have a somewhat taller screen, and the 48GII has the traditional 48G screen size.


#9

Thank you...Dave!!!

#10

Worth adding that the 49G doesn't have an IR port either - great shame that. I believe it came with a special cable for calc to calc transfer.

I also think that another factor which let down the 49G even further was not just the horrible tactile feel of the keyboard with its horrible (easily worn-off) painted labels, but the layout and relegation of important keys to shifted positions, eval and '. The 49G+ and 50G corrected this but still leaves the MTH and PRG menus as shifted keys. Users coming from a 48S/48G background might consider these two menus as major functionality "gateways" (I certainly do) so having them shifted is a major PITA.

Mark

#11

Just to note that I have a 49G+ which has the atrocious keyboard. At least, I assume it does: I've never had a 49G, but I can't imagine that any keyboard could be worse than the one on my 49G+! So the change in the internal hardware (ARM processor, etc.) must have taken place before the keyboard was fixed. All very confusing!

Nigel


#12

Quote:
Just to note that I have a 49G+ which has the atrocious keyboard. At least, I assume it does: I've never had a 49G, but I can't imagine that any keyboard could be worse than the one on my 49G+! So the change in the internal hardware (ARM processor, etc.) must have taken place before the keyboard was fixed. All very confusing!

No, no, the early atrocious version of the 49G+ keyboard was atrocious in entirely different ways than the 49G keyboard was. The 49G+ had hard plastic keys but the internal snap domes or hinges or whatever were easily broken. The 49G, on the other hand, had rubber keys; the standard (on cheap calcs, and never before an HP calc) type, except that the designers were aware that HP keyboards were supposed to be snappy, so they did their best to make... snappy rubber domes. Which were very stiff. And had the key legends silk-screened on. Which wore off. And some of the keys were sometimes upside down. They were unlike anything else I've ever seen. Here's a link to Joe Horn's site.

#13

I am (sort of) still using both my 48G and G+, and my 49G+ and 50G+.

I am impressed with the I/O and memory capacity, specifically the SD card capability, of the 49G+ and 50G.

But I like the feel of the 48G and G+ in my hands...

...
... and there is a Star Trek game that exists (only) for the 48G series machines. ;)

#14

Other differences between the 48Gii and the 50G: the 48Gii indeed has no SD card and it has a smaller display. Also less RAM (256K I believe) and no Equation library. I think it's a great deal for many users who'd otherwise get a 50G.

HP has actually made (at least) two versions of the 48gii that are, in my opinion, so different that they should have called them different models. The older version had no USB, only 80k of memory and used 3 AAA batteries. On the plus side, they came with a fabric case. They also came with a serial cable. The newer version has serial and USB, 256k of memory, uses 4 AAA batteries and comes with a turtle shell plastic cover (is that the right name??) and USB cable. You can tell the difference by looking for two connectors on the top edge (USB and Serial for newer version, serial only for old). If it's new in the bubble package then the top edge is hard to see, so check if it mentions USB on the package, or turn it around and look for 3 vs. 4 batteries.


#15

very clear about the HP 48gII (new speed on a 48 shape...), but is there a real difference between the 49G+ and the 50G?


#16

Quote:
very clear about the HP 48gII (new speed on a 48 shape...), but is there a real difference between the 49G+ and the 50G?

I own both machines; so far as I am concerned the only difference is that the 50G has a working keyboard (actually a rather good one) and a much nicer colour scheme! I think the 50G uses 4 AAA batteries instead of 3 and it has some sort of serial port which I've never used. I think that computationally both calculators are equivalent.

Nigel


#17

Quote:
I think that computationally both calculators are equivalent.

Nigel


If the emulators are anything to go by (and I assume they are), they both use the same ROM image.

Mark


#18

The 48gII, 49g+ and 50g all run the same ROM.

TW

#19

Quote:
very clear about the HP 48gII (new speed on a 48 shape...), but is there a real difference between the 49G+ and the 50G?

The following link is an Australian youtube comparing the 50G with the 49G+: http://www.youtube.com/watch?v=HxfxlVjbrkY&feature=related

For some reason, the 49g+ is slightly faster - he says something about the letters 'HLT' in the 50G upper right display. Maybe the 50G also has as SD card in it, who knows?

Jeff Kearns

Edited: 11 Aug 2009, 5:07 a.m.

#20

Quote:
very clear about the HP 48gII (new speed on a 48 shape...)

Mmm, just the opposite - HP48GII is NOT HP48 but HP49 really and is NOT in the HP48 shape unfortunatelly ... That's the way I read the above.
I guess everyone here would be extremely happy with the hardware of HP48 and the internals of HP50 but it's very unlikely to happen.
Cheers,
Reth

#21

Quote:
I guess everyone here would be extremely happy with the hardware of HP48 and the internals of HP50 but it's very unlikely to happen.
Cheers,
Reth

It would be totally awesome if they did that. I would be in seventh-heaven! The 50G is an amazing calc really but the key layout is its main failing. Ideally, it should have stuck to a layout very similar to the 48G series with 6 keys across on the middle group which would make room for the big enter in the correct place as well as providing an additional 4 keys.

I know that us users on this forum must represent a small faction of the total userbase but I am equally sure that there is a large number of users out there who want the RPN style keyboard on a 50G.

If this were to happen, the large 48 series community would certainly go for it and with the enhanced software and faster speed, it would surely create a surge of new user-development and a real buzz in the community.

It would be a completely killer calculator, just amazing.

How can we make HP aware of this desire so they might actually give it some thought? Rhetorical question I know but it frustrates me that this staggering combination has to live in my imagination only.

Mark


#22

Quote:
I know that us users on this forum must represent a small faction of the total userbase but I am equally sure that there is a large number of users out there who want the RPN style keyboard on a 50G.



One just has to watch EBay, people are willing to pay more than new 50G prices for 15y+ old used 48SX/GX.


#23

They must not care that the HP48S and G-series have the worst LCD display quality ever put on a graphing calculator by anyone. The LCDs were poor brand new right out of the box. The display clarity of the HP49g+ and later is stunning by comparison. My early HP49g+ display is actually perceptibly better than that of my HP50g, when a side-by-side comparison is made.

They must not care that HP48-series LCDs are woefully unprotected and can easily be damaged with slight pressure from a sharp surface (like the edge of a stapler in a drawer).

They must not care that HP48 memory expansion cards were (and are) quirky and unreliable (as the backup battery died) and *extremely* expensive. The SD card technology for the HP49g+ and later is a tremendous feature which seems seldom to be credited the value it deserves in the HP49g+ design.

They must not care the the keyboard and labeling color scheme used in both the HP48S and G series are studies in poor contrast and legibility, and just plain left-coast artsy-campy ugliness. The HP49g+ and HP50g keyboards have far better contrast, even if one doesn't like the colors used.

As an HP calc user for more than 35 years, IMHO the HP50g is the best handheld calculator ever made, by wide margin. Which is not to say it couldn't be improved.

#24

....in the inagination of many of us...!!!!


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