Let's make a direct connection between the pocket calculator revolution and the personal computer revolution.

Did you have an HP35? Ever try to upgrade it to a 45? What stories do you have?



HP3545 story on HP Memories forum: https://www.hpmuseum.org/cgisys/cgiw...

Blog on Myra Burg: https://www.iphonesavior.com/2011/12/...

HP45 crystal mod: https://www.hpmuseum.org/45crys.htm

HP45 stopwatch equation: http://www.decodesystems.com/hp45sto...