#hollerith code

There Ain’t ‘Alf Been Some Clever Bastards – Part Forty Seven

Ron Klein In the run up to the Festival of Mammon you have doubtless been giving your credit card a bit of a bash. You probably only turn it over to remind yourself of the CVV number but towards the top of the reverse of a credit card is a long metallic strip. Ever wondered who invented it? Well step forward Ron Klein, the latest inductee of our Hall of Fame. The Florida based inventor and Korean…