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Introduction to Engineering and Technology Concepts


Introduction to Engineering and Technology Concepts Unit Four Chapter Three Communication Technologies – PowerPoint PPT presentation

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Title: Introduction to Engineering and Technology Concepts

Introduction to Engineering and Technology
  • Unit Four
  • Chapter Three Communication Technologies

Instructions for Success
  • Each chapter of every unit will begin with a
    Mindjog. This is a warm up question that you
    should answer in your workbook in the proper
  • Please take notes as you move through the
    presentations in the notebook that has been
  • Sections will come up in each presentation with
    an assignment notice. Turn to the section
    detailed on the slide in your workbook and
    complete the assignment before proceeding.
  • Good luck!

  • Students will define components of communication
    technologies, including what communication is
    trying to convey.

  • On your worksheet, please respond to the
    following question 
  • Before telephones and other instant
    communication technologies, how did humans get
    information back and forth to one another?

Communication Technology
  • Communication technology is a system that uses
    technical means to transmit information or data
    from one place to another or from one person to
    another (Wright, 2004).
  • Before this technology, people used to send
    information by giving it to mail carriers on

  • The very first type of communication technology
    was cave paintings where artists used sticks,
    grass, or fingers to apply paint to cave walls.
  • Communication is used for a number of purposes,
    however. It is used to transfer ideas, exchange
    information, and express emotions.
  • An idea is a mental image of what a person thinks
    something should be. Communication media can be
    used to share these ideas (Wright, 2004).

  • Information is vital to taking an active part in
  • It provides a concrete foundation for decision
    making and action. This information can be as
    simple as the serving time for lunch.
  • Emotions can also be communicated (Wright, 2004).

Goals of Communication
  • Every communication message is designed to
    deliver a certain impact.
  • Communication can meet one or more of the three
    basic goals
  • Inform
  • Persuade
  • Entertain (Wright, 2004).

  • Communication informs when providing information
    about people, events, or relationships.
  • We read books, magazines, and newspapers to
    obtain information.
  • Radio news programs, television news programs,
    and documentaries are designed to provide
    information (Wright, 2004).

  • Persuading is when communication attempts to get
    people to act in a certain way.
  • Examples can include campaigns such as political
    advertisements, trying to get you to vote for one
    candidate or another (Wright, 2004).

  • People are entertained when they participate or
    observe events and performances.
  • This includes mediums such as television
    programs, movies, and novels (Wright, 2004).

Communications Model
  • Communication is a process that starts with the
    action of encoding. Encoding means that the
    message is changed into a form that can be
  • The message is then transmitted to the receiver.
    Transmission involves a communication channel or
  • The receiver gathers and decodes the message
    (Wright, 2004).

Communications Model
  • Think of what happens when you make a phone call
  • The message is encoded on the callers end
    through the telephone, transmitted through a
    wire, and then is received and decoded by the
    persons phone on the other end (Wright, 2004).

Types of Communication
  • One way to look at communication is in the terms
    of sender and receiver.
  • The most familiar type of communication is people
    communicating with people. It is referred to as
    human to human.
  • There is also machine to human. It is used to
    display machine operating conditions. Think
    about when computer displays errors.
  • If youve ever sent anything through a computer
    or set a thermostat, youve used, human to
  • There is also machine to machine. Humans
    create programs and put them into computers, and
    the computer directs and controls an apparatus
    (Wright, 2004).

Communication Systems
  • The communication technology used to deliver
    information can be divided into these five types
  • Printed Graphic Communication
  • Photographic Communication
  • Telecommunication
  • Technical Graphic Communication
  • Computer and Internet Communication (Wright,

Printed Graphic Communication
  • The earliest form of communication technology was
    written in some form or another.
  • Today, the need for mass communication is
    developing advancements in our means of
    transmitting information.
  • The first mass communication system was printed
    graphic communication, also known as printing.
  • Originally, printing meant putting an image on
    paper with inked typinghowever we can now print
    on products that are made of metal, plastic,
    cloth, or wood (Wright, 2004).

Photographic Communication
  • This type of communication technology uses light
    to convey messages.
  • The most common is photography.
  • Photography captures light as an image on a
    recording medium called film. When it is
    developed, the image becomes permanent.
  • Photographic communication uses photographs to
    communicate a message.
  • Think about how boring a vacation guide would be
    without pictures to convey areas of interest
    (Wright, 2004)!

  • Telecommunication is communication at a distance.
  • It includes a number of specific types including
    the radio, television, and the telephone (Wright,

Technical Graphic Communication
  • This is a way that information about a product or
    parts can be conveyed.
  • It explains the size and shape of a part.
  • It might suggest how the parts are assembled to
    make a product or structure. Think back to the
    engineer drawings we did!
  • The method of preparing and reproducing this
    media are called technical graphic communication
    systems (Wright, 2004).

Computer and Internet Communication
  • This is based on the key invention of the
    personal computer.
  • It uses a network of computers linked together to
    share information.
  • This network is called the internet and it allows
    people to gather information using the World Wide
    Web and exchange messages using electronic mail
    (and other applications) (Wright, 2004).

Assignment 1
  • Please turn to the section in your workbook
    entitled, Unit Four, Chapter Three
    Communication Technologies.
  • Complete the extension questions under the
    Assignment 1 header before moving onto the
    next section of slides.

  • Did you complete the Assignment 1 Section
    under the Unit Four, Chapter Three
    Communication Technologies section of your
  • If you have, please proceed to the next slide.

Chapter Three Completed!
  • Please close this presentation and launch the
    file entitled, Chapter 4 Telecommunication.

  • Wright, R. (2004) Technology The
    Goodheart-Willcox Company, Inc.