What is TCP/IP ? What is HTTP ?

TCP/IP (Transmission Control Protocol/Internet Protocol) is the base communication protocol of the Internet. IP part of TCP/IP uses numeric IP addresses to join network segments and TCP part of TCP/IP provides reliable delivery of messages between networked computers.

HTTP (Hypertext Transfer Protocol) is the set ot rules for transferring hypertext, like text, graphic, image, sound, video etc., on World Wide Web.