Before we learn about setting permalink in wordpress, it’s better if we make the same perception first regarding what permalink is. Permalink comes from the phrase “Permanent Link”, is a human-readable URL structure that point to specific content of a weblog and/or forum, from the frontpage to the archive. Actually, there’s no real folder or file name as seen on the browser’s address bar.
By default, wordpress set permalink with a very simple structure. It consist of the main domain, followed by the post ID number.
http://compexplorer.com/?p=13