WHAT IS ICT
MEANING: Ict is an acronym that stand for information and communication technology. Ict therefore covers any product that can store, retrieve, manipulate, transmit or receive information electronically, in a digital form. Example personal computer, (pc),digital television, email, robots etc.
TYPES OF ICT'S The types of ict's are;
(1).broadcasting
(2).Telecommunications
(3).Data networks
(4).Information systems
(5).Satellite communications
BROADCASTING
broadcasting is the distribution of video and audio content to a dispersed audience, through a medium such as radio, television etc. it is divided into three sub category which are listed below
(a)
Radio broadcasting : radio. Broadcasting is an audio broadcasting service, through the air as radio waves from an antenna to the receiving device. It can be via AM (amplitude modulation). Or FM (frequency modulation ) stations.
(b).television broadcasting : television broadcasting involves digital broadcasting and analogue broadcasting .digital broadcasting uses Digital signals 0s and 1s to transmit video and audio content. while Analogue broadcasting uses varying amplitude or frequency signals to transmit video and audio content.
NOTE: broadcasting on TV is usually on VHF( very high frequency). Or UHF (ultra high frequency).
TELECOMMUNICATIONS: This can be defined as the exchange of information over significant distances, using electronic medium such as telephone, cables, telegraph etc. It is subdivided into the following;
- Public switched telephone network (PSTM)
- Mobile phone system (GSM)
- Circuit switched pavket Telephone system (CSPT)
- Satellite telephone system e.g thuraya device
- Ficed wireless telephone system
DATA NETWORK
This is an electronic communication system that allows the transmission and receiving of data such as documents, text etc.
Some of the categories are
- Personal area Network (PAN)
- Local area Network (LAN)
- Wide area Network (WAN)
- Metropolitan area Network (MAN)
INFORMATION SYSTEM
This is the collection of peoples, firms data, databases, telecommunication system that are used for coagulation and compilation, basically for statistical and analytic purposes .e.g
- PHCN billing system
- Tax compilation
- Payroll system
- Global positioning system (GPS) etc
APPLICATION OF ICT
Ict is one of the fastest growing field in the whole wide world. And through the use of internet and ict gadget , there is an improvement in the educational secor, health care industry, communications industry and lots more of them.
Below are some of the basic uses of of ict
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