Why would i need to know this ?

Well if you have ever moved a joomla site from it's current possition to a new server you will need to change the server details in the config file as discussed here

Moving a Joomla Site

Sometimes people find it hard to find their Absolute Server Path, or just cannot be bothered to find out from their ISP.

SOLUTION : Please Click the read more after this post

Make a little script in your favortite text editor like the following

Save the file as a *.php (anyname)

After you have completed this upload it to the root of your server, open your browser and aim it towards the file you have just uploaded and there you have your absolute path.

You can find some good Joomla website hosting from Mckremie Hosting Solutions which offer quality support and fast web servers.