1. Electrical Door Bell Heating and Air Surround Sound Name Some Others
Systems in YOUR Home
Electrical
Door Bell
Heating and Air
Surround Sound
Name Some Others

2. Lets Look At Air Conditioning

3. Systems are found in nature, and some are made by humans.
Systems have parts or components that work together to accomplish a goal.
A subsystem is a system that operates as part of another system.
When parts of a system are missing or malfunctioning, the system may not work properly.
Any system is usually connected to other systems, both internally and externally. Thus a system may be thought of as containing subsystems and as being a subsystem of a larger system.

4. Lets Draw a System
1. Lets attempt to draw your home Heating and Air conditioning system
A. Label all Components
B. Draw the direction the Air flows
C. Draw the direction the electricity flows

6. Lets Make a System
Teacher resource part 2
Electric communications system Morse Code Transmission System Schematic
Buzzer
Battery
Switch

7. Now build the transmitter and send a signal for ONE word

8. Now What are Some Pro/ Cons
Write down your responses

9. Now Lets try it with an Operator
Teacher resource part 3
Now Lets try it with an Operator

10. Open Loop System- A system that gives NO feedback examples
Open Loop System- A system that gives NO feedback examples. Door bell, lamp It’s a dumb system
Closed Loop System- A system that gives feedback examples. Cruise control, thermostat for heating and air. Smart System

11. What additional features does this communication system need to make it “useful” for home use?
Identify at least three subsystems used in this model.
What subsystems would need to be “substituted” to turn this into a modern telephone system?