The early days of modern computing were downright weird, and the HP 9830B is a strange one indeed: it’s a gigantic calculator, running BASIC, on a CPU implemented over a dozen cards using ...

Too lazy to look for the calculator program on your PC? The Takumi computer key calculator could be the thing for you.

The calculator keypad has a 20-key matrix pad and an eight-digit dot-matrix LED display, and can do the four basic operations on fixed-point binary-coded decimal inputs.

A computer program in BASIC was developed following methods used by Birch (1948) to calculate life table parameters for an arthropod from experimental data. Actual data were presented as an example ...