The retirement calculator tool is designed to address the common question of how much money is needed to retire.

I was destined to meet Hugh Chou. All of the things financial I've ever wondered about -- how much of my mortgage payment chips away at principal, how much money I'd save by brown-bagging my lunches, ...

“The first digital use of the transistor for consumers was in a calculator,” says Rick Bensene, curator of the Old Calculator Web Museum. Our series on the birth of the transistor — and with it, the ...