Ch 04 - Communication Systems

Sound waves are ....

• A communication channel

• A type of feedback

• An input in the communication channel

• Electromagnetic radiation

This is not an output of a communication system

• People reading less because they watch too much TV

• Purchasing a new cell phone because yours has too much static

• A friends note

• Hearing damage from radio headphones

A received message is what of the communication system.

• Impact

• Process

• Output

• Copier

Medical devises have been know to malfuntion due to ...

• Electromagnetic Compatibility

• Electromagnetic Interference

• Electromagnetic Radiation

• None of these

To get a printed version of a drawing made on the computer, you must use a

• Plotter

• Miodem

• Scanner

• Copier

A communication channel is ...

• The number a TV is set at

• A message sending devise

• a specific code assigned to a specific receiving devise

• A path witch the message must pass

If you repeat a message over the phone because your friend did not understand it, you are ..,.

• Providing Feedback

• Providing Input

• changing the output

• Reinforcing the impact

This is not an input in an communication system.

• TV Repairman

• Math Knowledge

• VCR

• The message recorded by an answering machine

Cameras is a form of communication tool.

• True

• False

An innovation is simply a movement towards something else.

• True

• False