-- The Internet, or simply the Net, is the publicly accessible worldwide system of interconnected computer networks that transmit data by packet switching using a standardized Internet Protocol (IP) and many other protocols. It is made up of thousands of smaller commercial, academic, domestic and government networks. It carries various information and services, such as electronic mail, online chat, and the interlinked web pages and other documents of the World Wide Web. This handy tool that was developed more than 50 years ago can also be applied to a range of wireless devices, such as a PDA, via Bluetooth, Palm Intsant Transmission, or WiFi.