The Calculator that spawned the Microprocessor (2009)(vintagecalculators.com)116 points by fortran77 2 years ago | 37 comments
Electromechanical Calculating Machines from the 1960's(mortati.com)30 points by Teever 1 year ago | 8 comments
Powering up a module from the IBM 604: an electronic calculator from 1948(righto.com)88 points by elpocko 4 months ago | 26 comments
Commodore/MOS KIM-1 (2004)(dunfield.classiccmp.org)44 points by peter_d_sherman 3 years ago | 11 comments