Not sure if this is the right forum for this question. Anywaz... Here we go...
Absolute path: giving path starting from the root directory. Example your root directory say is c: (C drive) If you have a file myFile.txt in a folder myFolder which is inside another folder myFolder1 present at c:
The to access that file you can give the path c:\myFolder1\myFolder\myFile.txt
Here you are giving entire path from "root directory". This is called absolute path.
Relative Path: If you are already in some folder myFolder1 which is a part of the path in which your file is present then you need not start from root directory. Instead you can simply use \myFolder\myFile.txt This is "realtive" to the CURRENT directory. Relative means with respect to current active directory.