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+--- Thread: Interesting article on PDA's/HP calcs (/thread-73538.html)
Interesting article on PDA's/HP calcs - Jim Creybohm - 05-16-2005
An interesting read. Even mentions several notables in the HP calculator world (including people). I am unsure of the actual history, but trust this to be as detailed and accurate as anything else I have seen.
http://www.snarc.net/pda/pda-treatise.htm
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