What is the difference between all the different types of version control?

Question

After being told by at least 10 people on SO that version control was a good thing even if it\'s just me I now have a followup question.

What is the difference betwe

Answer 1

The answer to another question also applies here, most importantly

Jon Works said:
The most important thing about version control is:

JUST START USING IT

His answer goes into more detail, and I don't want to be accused of plaigerism so take a look.