INTERNET AND INTRANETS

Internet
Internet is a global system of interconnected system to link several billion devices worldwide. Internet was invented in 1950 by Robert E. Kahn and Vint Cerf. The Internet provides the network connections thet link computers together. There are many ways that we can use these connections:
 * View web page on the WWW ( World-Wide Web)
 * Sending and receiving e-mail messages
 * Sharing file
 * Communicating using voice (VOIP) and video (video-conferencing)
 * Playing multi-player games


 * Listening to streamed music or watching streamed video

Intranet
An intranet is the name given to a private network that provides similar services to The Internet: e-mail, messaging, web pages, etc.

Uses of an intranet:
 * Viewing internal web pages (e.g. company calendars, etc)
 * Internal e-mail and instant - messaging between workers
 * Sharing of internal documents

Search engines
A web search engines is a software system that is designed to search for information on the world wide web.

Types of search engines:
 * Crawler - based
 * Directories
 * Paid inclusive
 * Pay per click

 Top 5 Global sites 
 * 1) GOOGLE.com
 * 2) FACEBOOK.com
 * 3) YAHOO.com
 * 4) ASK.com
 * 5) YOUTUBE.com

Done by: Mogilan Sangar