Backup and archive strategy and method?

[xoshooter]

It does make sense sort of. Is there a way to do it automatcally and incrementally. What if i realized I screwed up on a file and have to go back a couple/few generations back. Is this what is known as archiving? I also have a laptop and it would be great to have files syncronized between the two compluters. Does super duper accomplish this or is some other software like chronosycn or synchronize pro use for this in addtion to SD?

Many thanks.

Never used a backup or synchronize utility so it is a little confusing.