|Re: "speed" of 11c|
Message #2 Posted by Valentin Albillo on 24 Aug 2004, 6:40 a.m.,
in response to message #1 by Bram
"I was amazed, if not baffled, to notice that the 11C ran at less than half the speed
of the 29C. It was the last thing to expect from a 2-generations-younger calculator."
Just have a look at their respective power consumptions. One of the main design goals of the Voyager series was to minimize power requirements so that the batteries would last for long and thus a charger/adapter wouldn't be needed at all. They succeeded in spades, with my own HP-11C lasting for 10+ years between battery changes (and 15+ years aren't unheard of). It's amazing that the CPU can still run at such a reasonable speed given the extremely minimal current it draws from its power source.
On the other hand, the HP-29C draws orders of magnitude more power from its batteries and so they'll last just a few hours, at most. Even if you could switch off the display completely (instead of leaving a single "."), they wouldn't last much longer.
I hope this explains the speed difference, and I hope you'll appreciate that even using 1/100th the power, say, it still manages to run at 1/2 the speed.
Best regards from V.
Edited: 24 Aug 2004, 6:44 a.m.