Introduction. Communication system of society is changing rapidly with the time. In ancient ages people use to communicate with shouting. If people are much more apart from one another the letter writing was the only means of communication just before 500 years. Due to rapid development of science, now a days a message can be passed to millions of people who all are scattered in whole world by a simple electronic communication system. Due to electronic communication devices true as well as false message can be spread to the people with in short time, this may cause negative impact on society and country. For shake of betterment sometime it is necessary to censor some of the news, ideas, books etc in the electronic communication.
Electronic Communication. Every day, in our work and in our leisure time, we come in contact with and use a variety of modern communication systems and communication media, the most common being the telephone, radio, television, and the Internet. Through these media we are able to communicate (nearly) instantaneously with people on different continents, transact our daily business, and receive information about various developments and events of note that occur all around the world. Electronic mail and facsimile transmission have made it possible to rapidly communicate written messages across great distances. Facebook, twiter, Hi5, blogs, online radio, online newspaper etc are the easiest way to spread a news or rumor.
Censorship. Censorship -- the control of the information and ideas circulated within a society -- has been a hallmark of dictatorships throughout history. In the 20th Century, censorship was achieved through the examination of books, plays, films, television and radio programs, news reports, and other forms of communication for the purpose of altering or suppressing ideas found to be objectionable or offensive. The rationales for censorship have varied, with some censors