- Various Internet Services:
There are various Internet resources located on ‘n’ number of servers on the Internet. It is a veritable source of knowledge and inexhaustible source. internet services can be broken down into two main categories.
- Communicating in the cyber space.
- Locating and retrieving the Internet services.
- The various Internet Services are:
- E-mail also called as electronic mail. It enables an individual to send letters, messages, advertisements, game programs, data files etc. to one or more internet addresses. The messages can be send within few minutes, inexpensive, volume-independent and distance independent.
- The user normally pays a flat rate for connectivity to the ISP. Email software comprises, mail servers on the Internet, mail user agent or mail reader at the user end. Simple mail transfer protocol, Unix to Unix copy, post office protocol, etc. are used on the mail servers for the purpose of sending and receiving mails. Mail user agent software running on a P.C. is used to compose and send mail via server, retrieve mail from a server and display the same on the user’s screen.
- mailing lists-a mailing list is used to send the mails to a smaller domain or group of a specific nature, Servers allow the user to enlist themselves in the mailing list by sending an email message. A discussion group of members restricted to only subscribers as per the mailing list, receives messages from the server as soon as someone has sent.
- Internet relay chat- it is a multi user implementation of Unix talk program. Developed in 1998 by j-Oikarimen offering a unique type of talking experience on the net. It has been used extensively for live coverage of world events, news and sports commentary.
- Internet talking:
This Internet line audio/video service allows users computer to connect to other user computer on the Internet. The messages are exchanged in real time by these users as soon as they are typed by any of them. A program called ‘talk daemon’ handles the actual communication service. This program should be compatible between the users designing to engage in Internet talk. Once the connection is made with talk daemon, the server dives into two, allows the user to enter the messages in the lower half, to view/ receive the massage from others through upper half of the screen. Video exchanges can also be conducted in real time over the Internet.
The IRC network on the Internet consists of multiple interconnected servers. The IRC consists of a number of channels-public, private, secret. A user can choose a channel of his choice and be part of a particular conference on the Internet. The IRC allows user to change from one chat group to another, join any conversation or listen only.
- Internet search-Internet provides huge amount of information newspaper, magazines, library books, articles, literature on philosophy, history, art, health, etc. User can browse through this information through search facility. This helps to locate the information and the server on which it is located.