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The internet and Security click here

Usenet
A worldwide bulletin board system that can be accessed through the Internet or through many online services. The USENET contains more than 14,000 forums, called newsgroups, that cover every imaginable interest group. It is used daily by millions of people around the world.
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IRC
Short for Internet Relay Chat, a chat system developed by Jarkko Oikarinen in Finland in the late 1980s. IRC has become very popular as more people get connected to the Internet because it enables people connected anywhere on the Internet to join in live discussions. Unlike older chat systems, IRC is not limited to just two participants. <> To join an IRC discussion, you need an IRC client and Internet access. The IRC client is a program that runs on your computer and sends and receives messages to and from an IRC server. The IRC server, in turn, is responsible for making sure that all messages are broadcast to everyone participating in a discussion. There can be many discussions going on at once; each one is assigned a unique channel
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Seven Search Engines

Seven Search Engines-

• AltaVista
• Excite
• Google
• Go.com
• HotBot
• Lycos
• Yahoo.

Difference between the World Wide Web and the Internet-

The Internet is a massive network of networks, a networking infrastructure. It connects millions of computers together globally, forming a network in which any computer can communicate with any other computer as long as they are both connected to the Internet. Information that travels over the Internet does so via a variety of languages known as protocols.

The World Wide Web, or simply Web, is a way of accessing information over the medium of the Internet. It is an information-sharing model that is built on top of the Internet. The Web uses the HTTP protocol, only one of the languages spoken over the Internet, to transmit data. Web services, which use HTTP to allow applications to communicate in order to exchange business logic, use the the Web to share information. The Web also utilizes browsers, such as Internet Explorer or Netscape, to access Web documents called Web pages that are linked to each other via hyperlinks. Web documents also contain graphics, sounds, text and video.

The Web is just one of the ways that information can be disseminated over the Internet. The Internet, not the Web, is also used for e-mail, which relies on SMTP, Usenet news groups, instant messaging and FTP. So the Web is just a portion of the Internet, albeit a large portion, but the two terms are not synonymous and should not be confused.

Five do's and five don'ts for using of services-

do's

1. Ensure that there is no conflict between what is in a user's interest and what is in the best interest of TAFE NSW and its customers.
2. Create web pages on TAFE NSW websites only where they are directly related to the educational business of TAFE NSW.
3. Acknowledge the work of the originator when referring to or presenting the ideas, writings, images, etc. of others.
4. Follow the expressed copyright requirements where a work specifies acceptable use of that work.
5. Request permission from the copyright owner unless it is clear that they can use a copyrighted work.

Don'ts

1. Provide their password to another person. Where it is necessary to ensure continuity of communications while a member of staff is on leave, etc., arrangements for this should be made through a supervisor or manager.
2. Publish personal contact information about themselves that is outside the business of TAFE NSW. This includes home address and telephone, mobile telephone, private email addresses, and similar. College or campus addresses and TAFE NSW email addresses may be used.
3. Publish personal contact information about other people or include reference to others including names and pictures without their permission.
4. Forward a message identified by the sender as private without the permission of the sender.
5. Email chain letters or send annoying or unnecessary messages to other people.