Jan 26, 2008
Introduction of ICT
ICT is the technology required for information processing.
In particular, the use of electronic computers, communication devices and software application to convert,store, protect, process, transmit and retrieve information from anywhere and anytime.
INFORMATION Information refers to the knowledge obtained from reading, investigation, study or research. We need information to make decision and to predict the future. For example, scientist can detect the formation of a tsunami using the latest technology and warn the public to avoid disasters in the affected areas. The tools to transmit information are the telephone, television and radio.
Information is knowledge and helps us to fulfil our daily tasks. For example, forecasting the stock exchange market.
COMMUNICATION Communication is an act of transmitting messages. It is a process whereby information is exchanged between individuals using symbols, signs or verbal interaction. Previously, people communicate through sign or symbols, performing drama and poetry. With the advent of technology, these `older' forms of communicate are less utilized as compared to the use of the Internet, email or video conferencing.
Communication is important in order to gain knowledge. With knowledge, we are more confident in expressing our thoughts and ideas.
TECHNOLOGY Aiding Communication. telephone and fax machines are the devices used in extending communication. Spreading Information
to broadcast information such as news or weather reports effectively. Radio, television, satellites and the World Wide Web (WWW) are powerful tools that can be used.
A History of Information Technology and Systems
Four basic periods Characterized by a principal technology used to solve the input, processing, output and communication problems of the time:
- 3500 BC, the Sumerians developed cuneiform writing - 1500 BC, the Phoenicians developed the alphabet. - 105 BC, Tsai Lun of China invented paper - 1454, the first printing began with the creation of a printing machine. - 1793, the telegraph line was invented. - 1876, the first telephone was introduced. - 1925, television was made known to public. - 1941, the computer was created. - 1958, the photocopier machine was introduced. - 1963, the communication satellite was introduced
- 1969, the first internet known as ARPANET was introduced.
TASK 2 1.) First generation of computer 2.) Second generation of computer 3.) Third generation of computer 4.) Fourth generation of computer
5.) Fifth generation of computer