Write a note on: Means of communication

Answer: Communication is the transfer of messages, information and ideas from one place to another.

• Personal communication: letters and post, telephone, mobile phones, e-mail, SMS and messaging applications used between individuals.
• Mass communication: newspapers, magazines, radio, television and cinema reach large numbers of people at the same time.
• Modern communication: satellites, optical fibre cables and the internet allow instant communication across the world; e-commerce, online banking and video conferencing are based on them.
• Importance: communication supports trade, administration, education, disaster warning and weather forecasting, and has made the world a 'global village'.
• India uses its own INSAT and GSAT satellites for telecommunication, television broadcasting and weather forecasting.