The web server is usually not located on your own computer. If it were, you probably would not be in this class. Posting The act of transferring the web page files you have created at your own computer to the web server so that the entire world can view them. It's also called uploading, and more sometimes FTP-ing, referring to the File Transfer Protocal used for transfering files from one computer to another. The URL is the pathname to the page you're looking for.
Directory path is the location of the web site within the server's file structure.
Page name is the filename of the web page you're requesting. There are two different concepts regarding the location of your site. The site you create first is located on your computer's hard drive. Then you upload it to a server. The location of the uploaded site is its URL, its location on the Web.