Simplest backup - copy your documents and/or whatever you want to keep to a
CD-R. (Or ZIP disk, etc.) If they're *really* important, copy them to two or
three. Label clearly.
System backups? You can install Microsoft's Backup program (originally made
by Seagate Software / Veritas, but it's a stripped down version) and back up
to an image file, then copy that image to CD, or purchase other backup
software that'll write directly to CD.
