No sticker? No problem—your computer probably has it saved internally.

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 ...

Your Mac’s serial number is required for warranty service, among other benefits that Apple offers its customers. Therefore, while not commonly used, you may occasionally need to look it up. While you ...

Some dollar bills are worth a shocking amount, despite what you might think. These U.S. dollar bill serial numbers can […] ...

I just got a replacement iPhone 4 for the iLemon that I’ve been blogging about here lately and, so far anyway, the Bluetooth problem seems to have disappeared. I haven’t had a chance to test it ...

Serial numbers in zone files help your DNS service determine whether it should re-ingest your zone files or ignore them. But there’s more to these pseudo timestamps than meets the eye. In fact, the ...