1. Unit 9 Information and Communications Technologies
Foundations of Technology

2. How do we communicate?
Technology has drastically changed the way we communicate:
Cell phone
Twitter
Face book
texting

3. Information and Communication can be classified into four categories
Human to human
Human to machine
Machine to machine
Machine to human

4. Purposes for communication
Inform
Persuade
Entertain
Control
Manage
Educate

5. Information and Communications technologies Include:
Inputs (speak into a phone)
Outputs (sound coming from the phone)
Processes (converting voice into digital signals)

6. Communication System Source Encoder Transmitter Receiver Decoder
Storage
Retrieval
Destination

7. Usefulness of Communication
Depends on:
Relevancy
Timeliness
Truth
Completeness
Cultural value

8. Ways to communicate
Printed graphic communication (magazines, newspapers)
Photographic communication (photos, slides, motion pictures)
Telecommunication (radio broadcast, TV, cell phone)
Technical graphic Communication (engineering drawings)
There are many ways to communicate such as graphic and electronic means.

9. Information is communicated using
Symbols
Measurement
Conventions
Icons
Graphic images
Languages