1. Introduction to Internet terms

2. Topics to Study What is Internet E-mail HTTP URL SMS MMS Wi-Fi Video Conferencing Social Webisites

3. What is the Internet? The largest network of networks in the world. Uses TCP/IP protocols and packet switching. Runs on any communications substrate. BACK

4. The Local part is the name of a special file stored on the mail server called the user’s mailbox The Domain name is resolved using DNS The mail server is also known as a mail exchanger Local part Domain name of mail server @ abc@gmail.com, Internet Email Addresses BACK

5. HTTP is the protocol used to access resources on the World Wide Web A browser application is used to send a request to the WWW server for a resource, e.g. a web page, graphics file, audio file, etc. The server responds by sending the resource (a file) to the client and closing the connection Request Browser app WWW server The Internet (TCP/IP) The Internet (TCP/IP) Web page Hypertext Transfer Protocol (HTTP) BACK

6. Uniform Resource Locator (URL) URL is the standard for specifying the whereabouts of a resource (such as a web page) on the Internet A URL has four parts: – The protocol used to retrieve the resource – The host where the resource is held – The port number of the server process on the host – The name of the resource file http://www.wlv.ac.uk:80/index.html Protocol Host Port number Name of web page BACK

7. SMS Short message service (SMS) is a globally accepted wireless service that enables the transmission of alphanumeric messages between mobile subscribers and external systems such as electronic mail, paging, and voice-mail systems. BACK

8. MMS – Additional information about how to present the Media can also be transferred If this is not present the device will make the decision BACK

9. WiFi, is a popular technology that allows an electronic device to exchange data or connect to the internet WIRELESSLY using radio waVES. BACK

10. Video Conferencing Conducting a conference between two or more participants at different sites by using computer networks to transmit audio and video data. For example, a point-to-point (two-person) video conferencing system works much like a video telephone. Each participant has a video camera, microphone, and speakers mounted on his or her computer. BACK

11. Social websites With the help of social websites we get connect to the number of people from different religion, places and countries.Examples of social websites are. www.facebook.com www.twitter.com BACK