What are the devices used in extending communication like telephone and fax machines?

INTRODUCTION TO INFORMATION AND COMMUNICATION TECHNOLOGY

[ICT]

EVOLUTION OF COMMUNICATION

Communication has improved and evolved to facilitate our daily activities. In the 21st century, everything

related to communication utilizes technology to ‘send out’ or disseminate information to a wider audience.

Information can be ‘sent out’ in many ways. The inventions of cellular phones, television and other

electronic devices are important in enhancing communication.

ICT

ICT is the technology required for information processing, in particular, the use of electronic computers,

communication devices and software applications to convert, store, protect, process, transmit and retrieve

information from anywhere, anytime.

INFORMATION

Information refers to the knowledge obtained from reading, investigation, study or research. The tools to

transmit information are the telephone, television and radio. We need information to make decisions and to

predict the future. For example, scientists can detect the formation of a tsunami using the latest technology

and warn the public to avoid disasters in the affected areas. Information is knowledge and helps us to fulfill

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 interactions. Previously, people communicated through

sign or symbols, performing drama and poetry. With the advent of technology, these ‘older’ forms of

communication are less utilised as compared to the use of the Internet, e-mail or video conferencing.

Communication is important in order to gain knowledge. With knowledge, we are more confident in

expressing our thoughts and ideas.

TECHNOLOGY

Technology is the use of scientific knowledge, experience and resources to create processes and products

that fulfill human needs. Technology is vital in communication.

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.

COMPUTER GENERATION

What is the device used in extending communication?

In telecommunications, a repeater is an electronic device that receives a signal and retransmits it. Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction.

What is fax in communication?

A fax [short for facsimile and sometimes called telecopying] is the telephonic transmission of scanned-in printed material [text or images], usually to a telephone number associated with a printer or other output device.

What is fax machine used for?

Common fax machines are designed to scan printed textual and graphic material and then transmit the information through the telephone network to similar machines, where facsimiles are reproduced close to the form of the original documents.

What was before fax machines?

Before fax machines came onto the scene, sending a document required hiring a courier or package delivery service – especially if the document needed to arrive the next day.

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