Introduction to Information & Communication Technology (ICT) Introduction to ICT BY; Benson Omondi

Introduction to ICT BY; Benson Omondi WHAT IS ICT? ICT is the technology required for information processing. In particular, the use of electronic devices like computers, communication devices and software application to convert, store, protect, process, transmit and retrieve information from anywhere and anytime. Introduction to ICT BY; Benson Omondi

Introduction to ICT BY; Benson Omondi 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. Introduction to ICT BY; Benson Omondi

Introduction to ICT BY; Benson Omondi 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. Introduction to ICT BY; Benson Omondi

Introduction to ICT BY; Benson Omondi 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. Introduction to ICT BY; Benson Omondi

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: Premechanical, Mechanical, Electromechanical, and Electronic Introduction to ICT BY; Benson Omondi

Introduction to ICT BY; Benson Omondi TIMELINE OF TECHNOLOGY 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. Introduction to ICT BY; Benson Omondi