We are all familiar enough by now with the succession of boards that have come from Raspberry Pi in Cambridge over the years, and when a new one comes out we’ve got a pretty good idea what to expect.

Before the Raspberry Pi came out, one cheap and easy way to get GPIO on a computer with a real operating system was to manipulate the pins on an old parallel port, then most commonly used for printers ...

You've probably heard that $2 bills are rare. Maybe you've even saved one or two yourself, thinking they might be worth something someday. Here's the thing though, most of them aren't particularly ...

Lisa Goetz is a finance content writer for Investopedia. She typically covers insurance, real estate, budgets and credit, and banking and taxes. Srinophan69 / Getty Images Investors looking to enjoy ...