Server to Web Browser

Each time you bang on a hotlink in a web page or blazon an abode into your web browser you are authoritative a 'request' for a certain document . That appeal is handled with the Hyper Text Transfer Protocol (HTTP) and beatific over the Internet to the server which holds the document in catechism . If all goes well the server responds by sending the certificate - - usually a web page of argument and cartoon .
HTTP is part of the Internet Protocol (IP) apartment . It is used by a 'client' such as a web browser to authorize a affiliation with the server which hosts a accurate site . The server waits for incoming requests by ecology TCP anchorage 80 .

Transmission Control Protocol (TCP) is acclimated to actualize connections amid two computers on the Internet so they can bazaar abstracts . TCP has provisions for identifying the requesting computer and for transmitting abstracts with time stamps so that it can be reassembled in the actual order already it arrives at its destination .
There are several TCP ports which accept connected uses . TCP anchorage 21 , for archetype , is usually aloof for FTP (File Transfer Protocol) for uploading and downloading files . Port 80 is usually used for HTTP .