What do you do when your trusty, 45 year old calculator finally needs to be retired? If you’re a programmer with a knack for making things — like Simon Boak — you custom build a replacement. This is ...

If you are interested in building your very own RPN calculator you might be interested in a new project published to the Instructables website this week by member Shiura. Using a CNC machine, the ...

Last month we touched upon the world of 1970s calculators with a teardown of a vintage Sinclair, and in the follow-up were sent an interesting link: a review of a classic Sinclair calculator kit from ...