Path, URL and URI Schemes

Path on Wikipedia

There are two kinds of paths, absolute path and relative path.

Absolute path is relative to the root folder. Different kinds of operating system have different root folders ( e.g. Windows D:\\ Linux / ).

Relative path is relative to the current working directory. ../ is one level up, while ./ is the current directory.

URL on Wikipedia

URL is simply a name. It starts with a URI scheme, such as http and https.

There are a lot of URI schemes!

chrome, lastfm, jar, and javascript are also URI schemes!
Example: lastfm://user/nmutiara

So, a URL contains a URI Scheme. How does this concept relate with the path?

… I think I have a lot of things to tell you, but I just can’t explain it!