The early days of modern computing were downright weird, and the HP 9830B is a strange one indeed: it’s a gigantic calculator, running BASIC, on a CPU implemented over a dozen cards using ...

It was one of many very similar basic calculators on the market at the time, but at the equivalent of over 100 dollars in today’s money it would still have been a significant purchase.

Our mortgage calculator helps, by showing what you'll pay each month, as well as the total cost over the lifetime of the mortgage, depending on the deal - you just need to input some basic info, such ...