Portable chargers are supposed to be the quiet workhorses in your bag, not a source of fire risk on your desk or nightstand.

As a digital rights management security measure, Dragon NaturallySpeaking (DNS) requires that you enter a unique serial code before you can begin using it. Nuance, the publisher of Dragon ...

Pull any bill out of your wallet. See the dark green numbers on the top-left and top-right corners? Those are serial numbers, and some are more rare than others. If you happen to have paper money with ...

The next time you're holding a dollar bill, it might be worth looking further than the big number one - you could get more bang from your buck than you expected. Ordinary low denomination bills are ...