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Lesson 5: Evolution of Communication
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Lesson 5: Evolution of Communication

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@Dr. K. Viswanath

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Questions and Answers

What was one of the earliest methods of communication used by early humans?

  • Printed books
  • Postal services
  • Written symbols
  • Gestures (correct)
  • Why did the need for writing arise in early societies?

  • To create art
  • To maintain records for trade (correct)
  • To entertain people
  • To write poetry
  • What was one reason homing pigeons were used to deliver messages?

  • They had a natural ability to find their way home. (correct)
  • They could carry heavy loads.
  • They were trained to read messages.
  • They were faster than horses.
  • Where did scholars believe the first postal service began?

    <p>Ancient Persia</p> Signup and view all the answers

    What significant development in writing occurred during the Bronze Age?

    <p>The use of clay tablets</p> Signup and view all the answers

    What made the handwritten books expensive and hard to obtain before the invention of the printing press?

    <p>They required expensive materials and labor to produce.</p> Signup and view all the answers

    Which ancient civilization is credited with perfecting the postal system?

    <p>The Romans</p> Signup and view all the answers

    How did India achieve a unique distinction in postal services?

    <p>By having the largest number of post offices in the world</p> Signup and view all the answers

    What was the primary advantage of Gutenberg's printing press?

    <p>It was cheaper and allowed for more copies.</p> Signup and view all the answers

    Which invention allowed for the rapid transmission of coded messages in the 1830s?

    <p>The telegraph</p> Signup and view all the answers

    Who is credited with the invention of the first television?

    <p>John Logie Baird</p> Signup and view all the answers

    What was the main purpose of satellites in communication?

    <p>To transmit signals to and from Earth.</p> Signup and view all the answers

    What transformed the way people communicated in the twentieth century?

    <p>The introduction of computers and the Internet.</p> Signup and view all the answers

    Which of the following was a crucial feature of Morse Code?

    <p>It was based on a series of dots and dashes.</p> Signup and view all the answers

    What significant change did computers undergo over the years?

    <p>They have become smaller and more portable.</p> Signup and view all the answers

    What was a major breakthrough of the radio as a communication tool?

    <p>It became a source of entertainment and news before television.</p> Signup and view all the answers

    Which of the following uses of the Internet is NOT mentioned?

    <p>Making video calls</p> Signup and view all the answers

    What impact did satellites have on television and phone communications?

    <p>They made long-distance communication possible and reliable.</p> Signup and view all the answers

    Johannes Gutenberg invented the printing ______.

    <p>press</p> Signup and view all the answers

    Samuel Morse invented the ______ to send messages using electrical signals.

    <p>telegraph</p> Signup and view all the answers

    The coded language used by the telegraph was called ______ Code.

    <p>Morse</p> Signup and view all the answers

    The ______ was invented by Alexander Graham Bell in 1876.

    <p>telephone</p> Signup and view all the answers

    Guglielmo Marconi invented the ______ in the late nineteenth century.

    <p>radio</p> Signup and view all the answers

    John Logie Baird used everyday objects to create the first-ever ______.

    <p>television</p> Signup and view all the answers

    Computers were huge machines initially, but now they are ______ devices.

    <p>sleek</p> Signup and view all the answers

    The Internet created a global system of ______ computers.

    <p>interconnected</p> Signup and view all the answers

    Satellites are human-made devices that orbit the ______.

    <p>Earth</p> Signup and view all the answers

    Satellites can capture images of the Earth for ______ purposes.

    <p>research</p> Signup and view all the answers

    Early humans used ______ signals as danger alerts.

    <p>smoke</p> Signup and view all the answers

    The earliest forms of writing developed in the ______ Age.

    <p>Bronze</p> Signup and view all the answers

    Homing pigeons were used to deliver messages because of their natural ability to find their way ______.

    <p>home</p> Signup and view all the answers

    The first postal service is believed to have begun in ancient ______.

    <p>Persia</p> Signup and view all the answers

    In the beginning, books were written and copied by ______.

    <p>hand</p> Signup and view all the answers

    Clay tablets, about 5000 years old, have been found in ______.

    <p>Mesopotamia</p> Signup and view all the answers

    India has the largest number of ______ offices in the world.

    <p>post</p> Signup and view all the answers

    The process of sending messages was limited to how fast a man or a ______ could run.

    <p>horse</p> Signup and view all the answers

    Early humans used symbols to communicate before they used gestures.

    <p>False</p> Signup and view all the answers

    The earliest written records were found on clay tablets that are around 5000 years old.

    <p>True</p> Signup and view all the answers

    Homing pigeons were commonly used for communication because they could fly faster than horses.

    <p>False</p> Signup and view all the answers

    The postal service was first modernized during the nineteenth century.

    <p>True</p> Signup and view all the answers

    The ancient Romans are credited with the invention of the first postal service.

    <p>False</p> Signup and view all the answers

    Before the invention of the printing press, books were affordable and easily accessible.

    <p>False</p> Signup and view all the answers

    Messages sent with homing pigeons were tied to their tails.

    <p>False</p> Signup and view all the answers

    India has the most post offices in the world.

    <p>True</p> Signup and view all the answers

    Gutenberg's printing press made printing more difficult and expensive.

    <p>False</p> Signup and view all the answers

    The telegraph was invented in the late nineteenth century.

    <p>False</p> Signup and view all the answers

    The radio became less popular after the invention of television.

    <p>True</p> Signup and view all the answers

    The original computers were small enough to fit into a wristwatch.

    <p>False</p> Signup and view all the answers

    Morse Code consists of long and short signals used for communication.

    <p>True</p> Signup and view all the answers

    Satellites can block television signals from reaching their destination.

    <p>False</p> Signup and view all the answers

    John Logie Baird invented the first television in the late nineteenth century.

    <p>False</p> Signup and view all the answers

    The Internet emerged in the twentieth century and changed global communication.

    <p>True</p> Signup and view all the answers

    People could use Morse Code to send messages before the invention of the telegraph.

    <p>False</p> Signup and view all the answers

    More than 2000 human-made satellites are orbiting Earth.

    <p>True</p> Signup and view all the answers

    What was a significant early form of visual communication used by humans before writing?

    <p>Cave paintings served as a significant early form of visual communication.</p> Signup and view all the answers

    How did innovations in transportation impact the development of the postal service?

    <p>Improved roads and the establishment of posting stations allowed for faster message delivery in the postal service.</p> Signup and view all the answers

    What was the role of homing pigeons in early communication?

    <p>Homing pigeons were used to deliver messages over long distances due to their ability to navigate back home.</p> Signup and view all the answers

    What role did trade play in the evolution of writing?

    <p>Trade created the need for record-keeping, leading to the invention of writing to communicate information about goods.</p> Signup and view all the answers

    How did the invention of the printing press change access to books?

    <p>The printing press made it possible to produce books more quickly and affordably, increasing accessibility.</p> Signup and view all the answers

    What innovation in communication systems did Persian rulers implement?

    <p>Persian rulers improved roads and built posting stations to enhance the efficiency of message delivery.</p> Signup and view all the answers

    What was a limitation of early message delivery methods like homing pigeons?

    <p>Early message delivery methods were limited to the speed of the animals used, such as pigeons or horses.</p> Signup and view all the answers

    What did early forms of writing, such as clay tablets, signify about early civilizations?

    <p>Early forms of writing like clay tablets indicated the beginning of keeping records and structured communication.</p> Signup and view all the answers

    What invention by Johannes Gutenberg revolutionized printing and why was it significant?

    <p>Gutenberg's printing press revolutionized printing by allowing individual metal blocks to be rearranged for different words, making printing easier and cheaper.</p> Signup and view all the answers

    Describe the primary function of the telegraph and how it transformed communication in the 19th century.

    <p>The telegraph allowed messages to be sent quickly over long distances using Morse Code, revolutionizing communication before telephones were invented.</p> Signup and view all the answers

    How did the invention of the telephone change communication methods compared to the telegraph?

    <p>The telephone allowed real-time voice communication, making it faster and more personal than the telegraph's coded messages.</p> Signup and view all the answers

    What role did Guglielmo Marconi's invention of the radio play before the rise of television?

    <p>The radio served as a major source of entertainment and news, allowing people to receive broadcasted information long before television existed.</p> Signup and view all the answers

    Discuss the significance of John Logie Baird's contribution to communication.

    <p>John Logie Baird created the first-ever television, transforming entertainment and education by allowing people to watch live and recorded programs.</p> Signup and view all the answers

    How did computers and the Internet alter communication in the late 20th century?

    <p>Computers and the Internet facilitated instantaneous global communication through emails and social networking, transforming everyday communication.</p> Signup and view all the answers

    What advancements did satellites bring to communication technologies?

    <p>Satellites enhanced long-distance communication by enabling signal transmission regardless of geographical barriers, allowing for global coverage.</p> Signup and view all the answers

    Explain the importance of satellites in modern communication methods.

    <p>Satellites are crucial for enabling phone calls and live broadcasts globally, enhancing both communication and information sharing.</p> Signup and view all the answers

    Identify the changes in computer technology from their inception to today.

    <p>Originally huge machines, computers have evolved into sleek, portable devices, significantly enhancing accessibility and usability.</p> Signup and view all the answers

    What was a key impact of the Internet on society in terms of communication?

    <p>The Internet made communication faster and cheaper, allowing people to connect instantly around the world.</p> Signup and view all the answers

    Study Notes

    Evolution of Communication

    • Communication began with gestures and smoke signals used by early humans.
    • Early humans also expressed ideas through cave paintings, notably found in Bhimbetka, Madhya Pradesh.
    • The slow nature of these methods prompted the development of symbols and later forms of communication.

    Need for Writing

    • Increased trade and commerce necessitated communication with distant locations and record-keeping for goods.
    • Writing emerged during the Bronze Age, with clay tablets from Mesopotamia dating back about 5000 years marking some of the earliest records.

    Pigeon Post

    • Around 3000 years ago, homing pigeons were utilized to send messages quickly, thereby overcoming limitations of human and horse speeds.
    • Messages were tied to the pigeons; their ability to find home made them reliable for urgent communication, including during battles.

    The Postal Service

    • The first postal service is believed to have originated in ancient Persia, improving road systems for quicker message delivery.
    • Ancient Romans enhanced the postal system, which was further developed by Indian rulers.
    • The nineteenth century saw modernization of postal services, making it accessible to the general public with stamps for sending letters and parcels.

    Inventions in Communication

    • Various inventions significantly advanced communication.

    Printing Press

    • Initially, books were hand-written, costly, and scarce.
    • The first printing press was invented by Johannes Gutenberg in the fifteenth century, paving the way for mass production of books.
    • This innovation reduced costs and increased availability of literature for the public.

    Telegraph

    • Samuel Morse invented the telegraph in the 1830s, enabling quick message transmission over long distances using electrical signals in Morse Code.
    • It transformed communication before being replaced by modern technologies by the twenty-first century.

    Telephone

    • Alexander Graham Bell invented the telephone in 1876, revolutionizing instant voice communication worldwide.

    Radio

    • Invented by Guglielmo Marconi in the late nineteenth century, the radio became a primary source of entertainment and news prior to television.

    Television

    • The invention of the television occurred in the early twentieth century when John Logie Baird utilized everyday objects to create the first model, becoming a vital communication tool for news and education.

    Computers and the Internet

    • Computers underwent a transformation from large machines to compact devices, significantly changing communication.
    • The Internet emerged as a global network of interconnected computers, facilitating instant communication through emails, social media, and more.
    • Besides communication, the Internet enables various activities like information retrieval, shopping, and bill payments.

    Satellites

    • Over 2000 satellites currently orbit Earth, essential for transmitting signals globally.
    • Satellites have improved long-distance communication, enabling live broadcasts and enhancing access to communications blocked by geographical barriers.
    • They also provide crucial data for weather forecasting and earth research.

    Evolution of Communication

    • Communication began with gestures and smoke signals used by early humans.
    • Early humans also expressed ideas through cave paintings, notably found in Bhimbetka, Madhya Pradesh.
    • The slow nature of these methods prompted the development of symbols and later forms of communication.

    Need for Writing

    • Increased trade and commerce necessitated communication with distant locations and record-keeping for goods.
    • Writing emerged during the Bronze Age, with clay tablets from Mesopotamia dating back about 5000 years marking some of the earliest records.

    Pigeon Post

    • Around 3000 years ago, homing pigeons were utilized to send messages quickly, thereby overcoming limitations of human and horse speeds.
    • Messages were tied to the pigeons; their ability to find home made them reliable for urgent communication, including during battles.

    The Postal Service

    • The first postal service is believed to have originated in ancient Persia, improving road systems for quicker message delivery.
    • Ancient Romans enhanced the postal system, which was further developed by Indian rulers.
    • The nineteenth century saw modernization of postal services, making it accessible to the general public with stamps for sending letters and parcels.

    Inventions in Communication

    • Various inventions significantly advanced communication.

    Printing Press

    • Initially, books were hand-written, costly, and scarce.
    • The first printing press was invented by Johannes Gutenberg in the fifteenth century, paving the way for mass production of books.
    • This innovation reduced costs and increased availability of literature for the public.

    Telegraph

    • Samuel Morse invented the telegraph in the 1830s, enabling quick message transmission over long distances using electrical signals in Morse Code.
    • It transformed communication before being replaced by modern technologies by the twenty-first century.

    Telephone

    • Alexander Graham Bell invented the telephone in 1876, revolutionizing instant voice communication worldwide.

    Radio

    • Invented by Guglielmo Marconi in the late nineteenth century, the radio became a primary source of entertainment and news prior to television.

    Television

    • The invention of the television occurred in the early twentieth century when John Logie Baird utilized everyday objects to create the first model, becoming a vital communication tool for news and education.

    Computers and the Internet

    • Computers underwent a transformation from large machines to compact devices, significantly changing communication.
    • The Internet emerged as a global network of interconnected computers, facilitating instant communication through emails, social media, and more.
    • Besides communication, the Internet enables various activities like information retrieval, shopping, and bill payments.

    Satellites

    • Over 2000 satellites currently orbit Earth, essential for transmitting signals globally.
    • Satellites have improved long-distance communication, enabling live broadcasts and enhancing access to communications blocked by geographical barriers.
    • They also provide crucial data for weather forecasting and earth research.

    Evolution of Communication

    • Communication began with gestures and smoke signals used by early humans.
    • Early humans also expressed ideas through cave paintings, notably found in Bhimbetka, Madhya Pradesh.
    • The slow nature of these methods prompted the development of symbols and later forms of communication.

    Need for Writing

    • Increased trade and commerce necessitated communication with distant locations and record-keeping for goods.
    • Writing emerged during the Bronze Age, with clay tablets from Mesopotamia dating back about 5000 years marking some of the earliest records.

    Pigeon Post

    • Around 3000 years ago, homing pigeons were utilized to send messages quickly, thereby overcoming limitations of human and horse speeds.
    • Messages were tied to the pigeons; their ability to find home made them reliable for urgent communication, including during battles.

    The Postal Service

    • The first postal service is believed to have originated in ancient Persia, improving road systems for quicker message delivery.
    • Ancient Romans enhanced the postal system, which was further developed by Indian rulers.
    • The nineteenth century saw modernization of postal services, making it accessible to the general public with stamps for sending letters and parcels.

    Inventions in Communication

    • Various inventions significantly advanced communication.

    Printing Press

    • Initially, books were hand-written, costly, and scarce.
    • The first printing press was invented by Johannes Gutenberg in the fifteenth century, paving the way for mass production of books.
    • This innovation reduced costs and increased availability of literature for the public.

    Telegraph

    • Samuel Morse invented the telegraph in the 1830s, enabling quick message transmission over long distances using electrical signals in Morse Code.
    • It transformed communication before being replaced by modern technologies by the twenty-first century.

    Telephone

    • Alexander Graham Bell invented the telephone in 1876, revolutionizing instant voice communication worldwide.

    Radio

    • Invented by Guglielmo Marconi in the late nineteenth century, the radio became a primary source of entertainment and news prior to television.

    Television

    • The invention of the television occurred in the early twentieth century when John Logie Baird utilized everyday objects to create the first model, becoming a vital communication tool for news and education.

    Computers and the Internet

    • Computers underwent a transformation from large machines to compact devices, significantly changing communication.
    • The Internet emerged as a global network of interconnected computers, facilitating instant communication through emails, social media, and more.
    • Besides communication, the Internet enables various activities like information retrieval, shopping, and bill payments.

    Satellites

    • Over 2000 satellites currently orbit Earth, essential for transmitting signals globally.
    • Satellites have improved long-distance communication, enabling live broadcasts and enhancing access to communications blocked by geographical barriers.
    • They also provide crucial data for weather forecasting and earth research.

    Evolution of Communication

    • Communication began with gestures and smoke signals used by early humans.
    • Early humans also expressed ideas through cave paintings, notably found in Bhimbetka, Madhya Pradesh.
    • The slow nature of these methods prompted the development of symbols and later forms of communication.

    Need for Writing

    • Increased trade and commerce necessitated communication with distant locations and record-keeping for goods.
    • Writing emerged during the Bronze Age, with clay tablets from Mesopotamia dating back about 5000 years marking some of the earliest records.

    Pigeon Post

    • Around 3000 years ago, homing pigeons were utilized to send messages quickly, thereby overcoming limitations of human and horse speeds.
    • Messages were tied to the pigeons; their ability to find home made them reliable for urgent communication, including during battles.

    The Postal Service

    • The first postal service is believed to have originated in ancient Persia, improving road systems for quicker message delivery.
    • Ancient Romans enhanced the postal system, which was further developed by Indian rulers.
    • The nineteenth century saw modernization of postal services, making it accessible to the general public with stamps for sending letters and parcels.

    Inventions in Communication

    • Various inventions significantly advanced communication.

    Printing Press

    • Initially, books were hand-written, costly, and scarce.
    • The first printing press was invented by Johannes Gutenberg in the fifteenth century, paving the way for mass production of books.
    • This innovation reduced costs and increased availability of literature for the public.

    Telegraph

    • Samuel Morse invented the telegraph in the 1830s, enabling quick message transmission over long distances using electrical signals in Morse Code.
    • It transformed communication before being replaced by modern technologies by the twenty-first century.

    Telephone

    • Alexander Graham Bell invented the telephone in 1876, revolutionizing instant voice communication worldwide.

    Radio

    • Invented by Guglielmo Marconi in the late nineteenth century, the radio became a primary source of entertainment and news prior to television.

    Television

    • The invention of the television occurred in the early twentieth century when John Logie Baird utilized everyday objects to create the first model, becoming a vital communication tool for news and education.

    Computers and the Internet

    • Computers underwent a transformation from large machines to compact devices, significantly changing communication.
    • The Internet emerged as a global network of interconnected computers, facilitating instant communication through emails, social media, and more.
    • Besides communication, the Internet enables various activities like information retrieval, shopping, and bill payments.

    Satellites

    • Over 2000 satellites currently orbit Earth, essential for transmitting signals globally.
    • Satellites have improved long-distance communication, enabling live broadcasts and enhancing access to communications blocked by geographical barriers.
    • They also provide crucial data for weather forecasting and earth research.

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    Description

    Explore the fascinating journey of communication from early human gestures to sophisticated symbols. This lesson covers the significance of cave paintings and smoke signals in expressing ideas. Understand how communication has evolved over time and its impact on human interaction.

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