HTTP or http

The standard Internet protocol for the exchange of information on the World Wide Web. Basically, it defines URLs by telling the server what to send to the client. The client can view Web pages, FTP sites, Gopher sites, Usenet newsgroups, or other areas of the Net. HTTP enables Web authors to code hyperlinks into documents. Once the files are FTP'd to the server, those links can be clicked on to initiate a data transfer process. Information is retrieved without any further input from the user (this is known as "transparent access," in which the user doesn't even need to know where the document is coming from or how it was accessed).