Information Technology [2 Mark Questions]

Mobile phones can do much more than making calls and sending text messages. The fifth generation mobile phones include the advance power of technology as high-resolution video camera to obtain HD images/ videos, latest versions of audio and video players and also an operating system fdr better gaming experience. These types of mobiles are known as smartphones. So, it can say that a mobile phone is a fully loaded entertainment device

It is a system of Internet servers that supports hypertext and multimedia to access several Internet protocols on a single interface. It is a way of exchanging information between computers on Internet, try to tie all the information together into a vast collection of interactive multimedia resources.

It is an audio service transmitted via Internet. It is broadcasted using the Internet as the connection to the radio, rather than radio waves. The basic requirement to use Internet radio is that you must have a broadband Is net connection at your home (or wherever you use the radic; and a PC in order to listen to radio stations via Internet.

Broadcast on Television and Radio are primary means by which news and entertainment are delivered to the public virtually around the world. The term broadcasting refers to the airborne transmission of electromagnetic audio signals (radio) or audio visual signals (television) that are readily accessible to a wide population via standard receivers. Broadcasting has been used for private recreation, non-commercial exchange of messages, experimentation, self-training and emergency communication such as ATV (Associated Television).

Internet telephony refers to the science and technology for integrating telephone services into a computer networks.
It converts analog voice signals into digital voice signals and then, converts them back again. It also transmits the signals using data packets.
By using this system, a person can make long distance calls free of cost, only Internet charges will be change and also, both parties must have the suitable softwares.

It is a process of transmitting and broadcasting television programs through the Internet using IP. Any person who watches a clip online, is experiencing a form of IPTV.
For user’s comfort, telecommunication companies started offering television programming through their high speed networks.
This makes it possible for telcos to offer the quadruple play, which is a combination of wireless phone, Internet, land-line phone and TV programming. It provides an integrated environment to deliver broadcast quality video over the IP-based communication using high speed Internet broadband network such as DSL high speed Internet cable and T1, T2 and T3 lines.

This application enables the interworking of standard fax machines with packet networks. It accomplishes this by extracting the fax image from an analog signal and carrying it as a digital data over the packet network. The E-mail fax system allows user to send and receive faxes using a regular fax number(s) over the Internet by using any E-mail account. Fax machines, fax servers and fax services continue to evolve towards a FoIP strategy (sometimes referred to as VoIP Fax)

VoIP is an IP telephony term for a set of facilities used to manage the delivery of voice information over Internet. It enables a user to make cheap telephone calls over a broadband Internet connection, instead of using a regular telephone service. A major advantage ot VoIP is that it avoids the tolls charged by ordinary telephone service.
A user can make a call locally or in other parts of (JS or Canada, or anywhere else in the world, eliminating long distance fees by using a VoIP service. The concept of VoIP is used in wireless LAN networks and sometimes referred to as wVoIP, VoFi, VoWi-Fi and Wi-Fi VoIP.

Set-Top Box (STB) It is an electronic device that generally contains a tuner card and connects to a television set as an external source of signal, turning the source signal into a content form that can be displayed on the television screen or other display device. It is also known as Set-Top Unit (STU). It is a device that enables a television set to become a user interface to the Internet.
Multi-Purpose Entertainment Devices These devices are used to play videos, listening to music and radio, play video games and much more through a single device, e.g. iPad, iPod, Tablets, PCs, X-Box gaming console etc.