what is ICT ? write basic features of mobile divice .explain it.
Answers
Information and communications technology (ICT) is an extensional term for information technology (IT) that stresses the role of unified communications and the integration of telecommunications (telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage, and audiovisual systems, that enable users to access, store, transmit, and manipulate information.
The term ICT is also used to refer to the convergence of audiovisual and telephone networks with computer networks through a single cabling or link system. There are large economic incentives (huge cost savings due to the elimination of the telephone network) to merge the telephone network with the computer network system using a single unified system of cabling, signal distribution, and management.
1)All mobile phones are designed to work on cellular networks and contain a standard set of services that allow phones of different types and in different countries to communicate with each other. However, they can also support other features added by various manufacturers over the years:
2)roaming which permits the same phone to be used in multiple countries, providing that the operators of both countries have a roaming agreement.
3)send and receive data and faxes (if a computer is attached), access WAP services, and provide full Internet access using technologies such as GPRS.
4)applications like a clock, alarm, calendar, contacts, and calculator and a few games.
Sending and receiving pictures and videos (by without internet) through MMS, and for short distances with e.g. Bluetooth.
In Multimedia phones Bluetooth is commonly but important Feature.
5)GPS receivers integrated or connected (i.e. using Bluetooth) to cell phones, primarily to aid in dispatching emergency responders and road tow truck services. This feature is generally referred to as E911.
6)Push to talk, available on some mobile phones, is a feature that allows the user to be heard only while the talk button is held, similar to a walkie-talkie.