Berkeley Data Systems

You've been through this before. A smart-aleck technology columnist tells you to back up your computer files or else. Sure enough, you choose "or else," because making spare copies of your files is too much bother.

You don't want to spend $100 or more on an external hard drive or figure out how to install the automatic backup software. Besides, if your house is robbed or burned down, there goes your computer and your precious backup, too.

Unless your backed-up data wasn't home when disaster struck.

Mac users looking for off-site backup can get it from EMC, which announced Thursday that its MozyHome for Mac is now available. EMC described it as "the industry's first unlimited online backup service" for Macs.

EMC said other versions of Mozy, including enterprise PCs, have about 700,000 users worldwide and about 6.2 billion files backed up.

Two Gigs Free