1. What is a System?

2. My Bicycle

3. Your Bicycle What do you like about your bicycle? What do you like about your bicycle? What don’t you like about your bicycle: What don’t you like about your bicycle: Describe how a bicycle works Describe how a bicycle works Has your bike ever broken? What did you do to repair it? Were you able to repair it? Has your bike ever broken? What did you do to repair it? Were you able to repair it?

4. What is a System? A collection of personnel, equipment, and methods organized to accomplish a specific function

5. DEFINTION OF A TECHNOLOGICAL SYSTEM All systems have some basic parts which include the following: –Inputs Inputs

6. DEFINTION OF A TECHNOLOGICAL SYSTEM All systems have some basic parts which include the following: –Inputs Inputs –Processes Processes

7. DEFINTION OF A TECHNOLOGICAL SYSTEM All systems have some basic parts which include the following: –Inputs Inputs –Processes Processes –Outputs Outputs

8. DEFINTION OF A TECHNOLOGICAL SYSTEM All systems have some basic parts which include the following: –Inputs Inputs –Processes Processes –Outputs Outputs –Feedback

9. DEFINTION OF A TECHNOLOGICAL SYSTEM All systems have some basic parts which include the following: –Inputs Inputs –Processes Processes –Outputs Outputs –Feedback –Goals Goals

10. DEFINTION OF A TECHNOLOGICAL SYSTEM All systems have some basic parts which include the following: –Inputs Inputs –Processes Processes –Outputs Outputs –Feedback –Goals Goals –All technological systems have these same five parts.

11. –Inputs - the resources used by the system Inputs

12. –Processes - the actions taken to use the inputs Processes

13. –Outputs - the result of the system Outputs

14. –Feedback - adjustments made to the processes to improve the outputs

15. –Goals - reason for the system Goals

16. What is a Subsystem?

17. sub- pref. Below; under; beneath: subsoil.

18. What is a Subsystem? a system that is part of some larger system

19. What is a Subsystem? a subsystem cannot exist without the larger system

20. What is a Subsystem? Example:?

21. Example: Your Refrigerator is a refrigeration system. The Freezer is a subsystem of your refireration system.

22. Questions?

23. Open Loop Systems A system that has no way of controlling its product A system that has no way of controlling its product

24. Open Loop Systems A system that has no way of controlling its product A system that has no way of controlling its product Open loop systems have no feedback Open loop systems have no feedback

25. Open Loop System InputOutputProcess Goal

26. Closed Loop System

27. Measures and controls the outcome of a system using feedback Measures and controls the outcome of a system using feedback

28. Closed Loop System Goal

29. The Bicycle as a System