Absolute and relative path

hi, im creating my website and some people suggest me to use "relative" paths for my links and images, but what are the other options and why the realtive is best?

Absolute path is the complete url

Relative is taking the current address as the starting point.
this line used on"http://site.com" will call the file located on "http://site.com/file" and

will call the file located on "http://site.com/folder/file". So, as you can see, it would be easier to work with relative paths on your own site but absolute paths are needed to link many sites. Also, relative paths gives you the option to keep your links/images working when you move your site.