TCP/IP stands for Transmission Control Protocol / Internet Protocol. It is a real communication protocol that drives the Internet. Every computer on the Internet must be installed TCP/IP. This protocol provides connectivity between browsers and servers on the Internet.
File Transfer Protocol (FTP)
It is also an Internet software tool for transferring files from one computer to another. The process of transferring a file from a network computer to your local computer is called down-loading. The process of transferring a file from your own computer to the server on the Internet is called uploading.
It is an access and retrieval system covering a wide range of information. It organizes resources into multilevel menus to make finding information easier on the Internet. Before Gopher, it was difficult to find information on the Internet.
An organization network through which the files and messages are exchanged among the users of the organization only is called the Intranet. This type of network uses the same protocols as used in the Internet. But through Intranet the information cannot be exchanged out side the organization.
An extranet is a network of multiple intranets. It means that intranets of different companies are connected together for the collaboration among the companies. On an extranet each connected company gives selected rights to the employees of one or more other companies to access its intranet.
IP stands for Internet Protocol. It is a unique identifier for a host or node on the Internet. It is numerical address with four numbers separated with dots. A typical IP address looks like this: 188.8.131.52
DNS stands for Domain Name System. The human-readable name assigned to the computer (server) on the Internet is called the domain name. It is a common and unique text name. For example, “hotmail.com” is a permanent, human-readable name.
These are discussion groups or forums that provide the services to exchange messages on the Internet (not on the Web, which is only one area of the Internet) about a particular subject. Newsgroups are classified by subject and do not necessarily deal with journalism or “news”. Health, hobbies, celebrities, and cultural events are the subjects of many newsgroups.