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Communication Technology

Communication Technology.

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Communication Technology

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  1. Communication Technology

  2. 3. Communication TechnologiesIdeas can be communicated through engineering drawings, written reports, and pictures.3.1 Identify and explain the components of a communication system, i.e., source, encoder, transmitter, receiver, decoder, storage, retrieval, and destination.3.2 Identify and explain the appropriate tools, machines, and electronic devices (e.g. drawing tools, computer aided design, and cameras) used to produce and/or reproduce design solutions (e.g., engineering drawings, prototypes, and reports) 3.3 Identify and compare communication technologies and systems, i.e., audio, visual, printed and mass communication. 3.4 Identify and explain how symbols and icons (e.g., international symbols and graphics) are used to communicate a message. LearningStandard

  3. At the conclusion of the unit students will be able to: Define communication & communication technology & understand the difference between them Understand the 5 things that must be considered when creating a message in order for the message to be effective Identify & understand the different types of communication Identify & explain the components of a communication systemUnderstand what an icon/symbol is &why they are important to communication technologyUnderstand why Alexander Graham Bell, Philo Farnsworth, Martin Cooper &Tim Berners-Lee are important to the advancement of communication technology LearningObjectives

  4. Communication: Exchange of information between people • This information is used to help people • make decisions • solve problems Communication Technology allows humans to share ideas easier

  5. Message Design Ideas being exchanged must be understood in order for communication to be effective… In order to create an effective message, the person creating it needs to be aware of 5 things: Purpose of the Message: WHYhave you created the message Intended Audience: WHOwill be receiving the message

  6. Message Design Nature of the Message: WHATis the message about Medium Being Used: HOWwill the message be delivered (TV, Radio, Billboard, Internet, Text Message, Email, Music, etc…) Language used create message: Message should be created usinglanguage that is understandable to the intended audience to allow clear communication

  7. Types of CommunicationTechnology

  8. Mass Communication Communication to a largenumber of people at one time

  9. Mass Communication Began with the invention of the Printing Press Invented by Johannes Gutenberg in 1448 Prior to this invention, people had to write every word on every page of every book by hand – this was a very slow process As a result books were very expensive so only wealthy people had access to the knowledge they contained The device made it possible for the common man, woman & child to have access to books for the first time, which meant they would also have the ability to accumulate knowledge

  10. Telecommunication Communication over a distance Examples: Phones, televisions, radios, satellites

  11. Graphic Communication Communication that sends & receives messages visually using of drawn or printed pictures & symbols People send & receive messages through reading, writing, drawing & painting Examples: Magazines, newspapers, messages on clothing, billboards, road signs, computer images

  12. Wave Communication Communication that moves in waves Sound Waves: Vibrations traveling through the air,water etc. that can be perceived bythe human ear Example: Musical instruments & human voice Light Waves: Message is transmitted as waves of light Example: Television

  13. Wave Communication Electromagnetic Carrier Waves: Message is converted into electrical signals and carried through the atmosphere. Large antennas & dishes transmit & receive the signals. Example: Television & radio broadcasts Cell Phone calls

  14. Multimedia Communication Combining text, sound & images into one presentation This creates a more complete & entertaining message • Frequently used for: • Entertainment • Education • Advertising Audio refers to: Sound Video refers to: Images

  15. Components of a Communication System Source Where the information begins / where the signal is sent from Examples: voice or image Encoder Changes the information (message) into code so it can be sent (transmitted) Transmitter Sends the encoded message over a channel Channel Channel: The medium or link through which a signal is sent from the transmitter to the receiver Examples: wire cables, fiber-optic cables, wireless wave communication Receiver Takes in the encoded message sent through the channel by the transmitter Decoder Translates the encoded message into useful information so that it can be understood

  16. Components of a Communication System Many communication systems often have 2 additional components that allow information to be saved so that it can be accessed when needed Storage: Message is saved for later use Retrieval: Message is recalled when needed Examples: Voicemail / Telephone answering machine iPods / MP3 Players / Cameras Books / Notebooks CDs / DVDs / Blu-rays Video Games Computer hard drives / Flash drives

  17. Icons & Symbols Icon/Symbol: A picture or image that is used to represent something else Allows people to communicate without using words

  18. Icons & Symbols

  19. Alexander Graham Bell Born March 3, 1847 in Edinburgh, Scotland Worked as a teacher for deaf students in Boston & became a professor at Boston University Obtained the first patent for the telephone on March 7, 1876

  20. Alexander Graham Bell Made first phone call to his assistant Thomas Watson who was working in another room on March 12, 1876 Created the Bell Telephone Company on July 9, 1877 with Watson and several other business partners The first long distance call between New York City & Chicago in October 1892 The first long distance call across the United States was made between New York City & San Francisco on January 25, 1915

  21. Alexander Graham Bell Interestingly, Bell considered the telephone an intrusion and would not have one in his Study

  22. Philo Farnsworth Born in Utah in 1906 First person to create a fully functional all-electronic television system & demonstrate it to the public in 1927 Holds over 165 patents

  23. Martin Cooper Born in Chicago in 1928 Worked as a General Manager for Motorola’s Communication Systems Division Made the first Cell Phone call on April 3, 1973 in New York City The call was made to his friend & competitive rival who was working for Bell Labs who was also working to develop a cellular phone

  24. Martin Cooper It took 10 years for the cell phone to be ready to sell to the public (1983) This first publicly available cell phone weighed 16 ounces (1 pound) & sold for $3500 Today Cooper is the CEO of ArrayCom, a company that he co-founded in 1992 ArrayCom develops more reliable and inexpensive cellular antennas

  25. Tim Berners-Lee Born in England in 1955 Worked as a computerscientistfor CERN in Switzerland in 1989 CERN employed thousands of Nuclear Research Scientists & engineers worldwide

  26. Tim Berners-Lee Workers at CERN needed a way to share technical information & documents Berners-Lee was working to come up with a solution to his company’s problem

  27. Tim Berners-Lee Hypertext: One piece of computer text can be linkedwith another

  28. Tim Berners-Lee Berners-Lee had been experimenting with his own version of hypertext Using the hypertext concept - Tim Berners-Lee wrote the first “browser” software Text and documents could be linked together - not just within CERN but over the entire internet

  29. Tim Berners-Lee This could be done using mouse clicks – notyping was necessary He called his program “World Wide Web”which worked like current browsers exceptthere were no pictures or color monitors

  30. Tim Berners-Lee The first website went online on August 6,1991. CERN announced that it could be used bythe public for free in 1993 The fact that it was free was very important to the growth of the Web

  31. Tim Berners-Lee The World Wide Web has become arguably most powerfulcommunication medium the world hasknown Today Berners-Lee works at MIT in Cambridge, Massachusetts and is the leader of an organization (W3C) that is responsible for overseeing the Web’s continued development

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