Communications Chapter Notes | Be an Explorer 5: Book Solutions, Notes & Worksheets - Class 5 PDF Download

Introduction to Communication

• Communication is the exchange of information, thoughts, feelings, and ideas.
• In early times, fire and smoke signals were used for messaging during emergencies.

Earliest Means of Communication

• Fire was initially used for messages.
• Smoke signals warned of attacks or gathered people during natural disasters.
• Pictographs and written languages developed on clay, leaves, and papyrus.

The Beginning of Postal System

• In England, the Penny Post Service introduced postal communication.
• Messages sent through horse riders, with a penny payment.
• Stamps on letters indicated payment, marking the start of the postal system.

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Evolution of Written Communication

• Written communication progressed from clay tablets to paper.
• Postal services, telegraph, telephone, fax, and email are forms of personal communication.
• Mass communication includes TV, internet, cinema, and advertisements.

Evolution of Mobile Communication

• Martin Cooper invented the first mobile phone in the 1970s.
• First-generation mobile networks in Japan (1979) marked a turning point.
• Evolution through second (2G), third (3G), fourth (4G), and upcoming fifth (5G) generations.
• Advancements include digital systems, SMS, enhanced security, and higher data rates.

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Modern Means of Communication

• Personal communication involves two individuals, using postal services, telegraph, telephone, etc.
• Mass communication reaches a large audience through TV, internet, cinema, and advertisements.

• The internet is a global network providing instant information and messaging.
• Email facilitates online communication, shopping, banking, and document transfer.
• Computers and the internet are integral to modern communication.

Social Media

• Social networking sites like Facebook, WhatsApp, and Twitter are popular for communication.

E-Newspapers

• Traditional newspapers transition to e-newspapers for digital reading on laptops, tablets, and smartphones.

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Conclusion

• Communication has evolved from fire signals to advanced digital networks.
• The internet, social media, and e-newspapers play crucial roles in modern communication.