This electronic game is simulation of one-arm bandit game. Electronics hobbyists will find it very interesting. When toggle switch S1 is in ‘run’ position, all segments of 7-segment displays (DIS1 ...

[Karl] was in need of a hardware random number generator, but is needs had a few caveats: it needed to be cheap, and sufficiently random. Random number generation can get quite crazy with Geiger tubes ...

I received a random PIN many years ago, and realised it was an easily memorable scientific constant plus another number. Another random PIN was a well-known date plus a palindromic number. Maybe I was ...