1. Communication Technology

2. Learning Standard
3. Communication Technologies Ideas can be communicated through engineering drawings, written reports, and pictures Identify and explain the components of a communication system, i.e., source, encoder, transmitter, receiver, decoder, storage, retrieval, and destination 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.

3. Learning Objectives
At the conclusion of the unit students will be able to:
Define & understand the difference between communication & communication technology
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 Understand what an icon/symbol is & why they are important to communication technology

4. Learning Objectives
Identify & explain the components of a communication system Understand why the following people are important to the advancement of communication technology:
Johannes Gutenberg Alexander Graham Bell
Philo Farnsworth Martin Cooper
Tim Berners-Lee Jack Dorsey
Grace Hopper Steve Jobs
Bill Gates Nick Woodman

5. Communication Technology
Exchange of ideas, information, & opinions between people
Communication Technology
Uses equipment & systems to send and receive information
Allows humans to exchange (or share) ideas, information, and opinions easier

6. Message Design
Information (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:
WHY have you created the message

7. Message Design Intended Audience: WHO will be receiving the message
Nature of the Message:
WHAT is the message about

8. Message Design Medium Being Used:
HOW will the message be delivered (TV, Radio, Billboard, Internet, Text Message, , Music, etc…)

9. Message Design The Language:
The language must be understandable to the intended audience to allow clear communication

10. Types of Communication Technology

11. Graphic Communication
Visual messages using pictures & symbols
Examples:
Magazines, newspapers, TV, messages on clothing, billboards, road signs, computer images

12. Wave Communication Sound Waves:
Vibrations traveling through the air that can be heard

13. Examples of Sound Wave Technology
Wave Communication
Examples of Sound Wave Technology
Television
Radio
Telephone

14. Wave Communication Light Waves:
Message is transmitted as waves of light that can be seen
Examples:
Television
Computer Screen

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

16. Mass Communication
Communication to a large number of people at one time

17. Mass Communication Began with the invention of the Printing Press
Invented by Johannes Gutenberg in 1448

18. Mass Communication Before the Printing Press:
Books were written by hand
This was a very slow process
As a result books were expensive
Only wealthy people could afford them

19. Mass Communication
The Printing Press made it possible for common people to have access to books for the first time
Which gave them access to knowledge

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

21. Multimedia Communication
Combining text, sound & images into one presentation
This creates a more complete & entertaining message
Example:
Books, Computers, Video games, Television, Power Point Slideshows

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

23. Icons & Symbols

24. 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

25. Alexander Graham Bell
Obtained the first patent for the telephone on March 7, 1876

26. Alexander Graham Bell
Made first phone call to his assistant Thomas Watson who was working in another room on March 10, 1876

27. Alexander Graham Bell
Created the Bell Telephone Company on July 9, 1877 with Watson and several other business partners

28. Alexander Graham Bell
The first long distance call between New York City & Chicago was made in October 1892
The first long distance call across the United States was made between New York City & San Francisco on January 25, 1915

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

30. 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

31. Martin Cooper Born in Chicago in 1928
Worked as a General Manager for Motorola’s Communication Systems Division

32. Martin Cooper
Made the first Cell Phone call on April 3, 1973 in New York City
The call was made to his friend & competitive rival Joel Engel who was working for Bell Labs who was also working to develop a cellular phone

33. 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

34. Martin Cooper
Today Cooper is the CEO of ArrayCom, a company that he co-founded in 1992
ArrayCom develops more reliable and inexpensive cellular antennas

35. Tim Berners-Lee Born in England in 1955
CERN employs thousands of Nuclear Research Scientists & engineers worldwide
Worked as a computer scientist for CERN in Switzerland

36. Tim Berners-Lee
In 1989 Tim Berners-Lee was working to come up with a way for workers at CERN to share documents

37. Tim Berners-Lee
Tim Berners-Lee wrote the first “browser” software using hypertext
Hypertext:
One piece of computer text can be linked with another
Text & documents could be linked together – workers at CERN could share information

38. Tim Berners-Lee
He called his program “World Wide Web” which worked like current browsers except there were no pictures or color monitors

39. Tim Berners-Lee The first website went online in 1991
CERN announced that it could be used by the public for free in 1993

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

41. Bill Gates Born in Seattle, Washington in 1955
Attended Harvard from
Co-founded Microsoft in 1975 with Paul Allen
Microsoft became the world’s largest PC software company
"Bill Gates June 2015" by DFID - UK Department for International Development - Licensed under CC BY 2.0 via Commons -

42. Bill Gates Microsoft introduced the Windows Operating System in 1985
At one time 90% of all PCs were operating with Windows

43. Bill Gates Co-founded the Bill & Melinda Gates Foundation in 2000
Goals:
Reduce Poverty & increase Healthcare worldwide

44. Components of a Communication System
Source
Where the information begins
Where the signal is sent from

45. Components of a Communication System
Source
Changes the information (message) into code so it can be sent (transmitted)
Encoder

46. Components of a Communication System
Encoder
Sends the encoded message over a channel
Transmitter
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

47. Components of a Communication System
Channel
Takes in the encoded message sent through the channel by the transmitter
Receiver

48. Components of a Communication System
Receiver
Translates the encoded message into useful information so that it can be understood
Decoder

49. Components of a Communication System
Source
Where the information begins Where the signal is sent
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

50. Components of a Communication System
Many communication systems have 2 additional components:
Storage:
Message is saved for later use
Retrieval:
Message is recalled when needed
Examples:
Voic / Telephone answering machines / Cameras /
iPods / Books / Notebooks / CDs / DVDs / Blu-rays /
DVRs / Video Games / Computer hard drives / Flash drives