When is a pocket calculator more than just a calculator? [Andrew Menadue] has been pushing the limits of his 1970s Casio FX-502P by adding all sorts of modern functionality via the calculator’s ...

What do you do with a circa 1985 Casio FX-451 calculator with a bad keyboard? Well, if you are [Poking Technology], you transplant the inside of the calculator to a new custom keyboard. There are two ...

Quartz movement 1/100 second digital stopwatch; measuring modes: elapsed time, split time, 1st-2nd place times Hourly time signal; calendar (pre-programmed until the year 2029); 12and 24 hour formats ...