It's World Backup Day: no time like the present to protect the past

There are two kinds of computer owners: those that backup their data, and those who will backup after they lose something irreplaceable. It's that last group for whom World Backup Day exists, and the special occasion has returned for a third year to make sure we all wind up in that first, very responsible camp. Thankfully, it's easier than ever to have at least some kind of safety net. Along with ridiculously high-capacity external hard drives, both Mac and Windows users have simple built-in sof...