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HP15c Collector's Edition speed tests


I mentioned in yesterday's blog that I intended to do some speed comparisons between the HP15c Collector's Edition and othe HP15c models - however, I am missing a HP15c LE since the one I have is bricked from a previous attempt at reprogramming it with a firmware with more memory. Also my Mac cannot handle a RS232 interface properly (at least I have not managed to do it - I did with older verisons of Mac OS) which is required for the LE to be reprogrammed.

However, Gene Wright has managed to do it with all three models - you can see his findings here:

(I have to say that I replicated perfectly the measures for both the original machine and the HP15c Collector's Edition prototype I have. You can find the original programs in HPmuseum)


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