2015's calculator anniversary - the SR-52

[David Hayden]

The SR-52 was the first programmable anything that I ever saw. A friend of my parents had one and I still remember him showing it to me while we were for dinner one night. I was completely mesmerized. He let me borrow it and I programmed a prime number finder. It's no exaggeration to say that the SR-52 and that night led to my career as a computer programmer.