HP Calc emulators
hp-fix at xs4all.nl
Sun Jun 28 15:37:39 CDT 2009
Oops, too fast me and my big mouth ;-)
> -----Oorspronkelijk bericht-----
> Van: cctalk-bounces at classiccmp.org
> [mailto:cctalk-bounces at classiccmp.org] Namens Tony Duell
> Verzonden: zondag 28 juni 2009 20:13
> Aan: cctalk at classiccmp.org
> Onderwerp: Re: HP Calc emulators
> > The first versions ran on a saturn processor the same as the HP-71B.
> The orignal Voyagers (11C, 12C, etc) used a _NUT_ processor,
> similar to the one in an HP41. According to the datasheet
> there are differences mostly relating to the different
> battery voltage.
> Original 11Cs and 12Cs contained 2 chips. The smaller one is
> the Nut CPU.
> The larage one is the ROM/RAM/Display Driver, always known as 'R2D2'.
> 16Cs are much the same, the 15C has a thrid chip which is
> extra memory.
I found this from Eric Smith:
> Rik, I looked at your photos... It looks like some 9000/300
> machines are going to be of interest to me. Darn, something
> else to look for :-). And I love your vehicle :-)
Told you, the 300 series (some) are fun too ;-)
The DS is going to the painter half of august.
After that there will be more pictures.
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