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Systems
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You probably use a system each morning to get ready for school!
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Creating a Mustang
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DefinitionsSystems:
A group of items forming a whole. An orderly way of achieving a goal.
Subsystems A secondary part of a larger system. Small systems which are combined to
make up complex systems.
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System: Human Body
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System: Automobile
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System: House
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System Loop
INPUT PROCESS OUTPUT
Systems can be classified into two major groupings – Open Loop System & Closed Loop Systems
Open Loop systems are those systems that have to be manually adjusted because they lack automatic feedback.Turning on/off the water faucets at home.Adjusting the speed of an automobile using the foot pedal.
Closed loop systems are those systems that can monitor (watch) and adjust themselves without manual feedback.Supermarket doorsCruise control on modern carsThermostat in a house for heating/cooling
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Components
InputProcessOutputMonitorCompare and Adjust
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Input
Input is the information, ideas, and activities that we need to provide to determine what we need to accomplish.
Can be a command.
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Process•The part of the system during which something is done.•The “action” part of the system.
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Output
The result of the system’s process.
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Monitor/Feedback
Information about the output of a system Used to monitor how a system is working Used to make adjustments to the system
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Compare and Adjust
Compare output to input. Make adjustments as necessary to achieve desired output.
Adjustments made by people – Open System
Adjustments made automatically – Closed system
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Open Systems
Systems that have to be constantly adjusted by YOU
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Closed Systems
Systems that can monitor (watch) and adjust themselves without you being involved.
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Now its your turn!