A system is a group of interrelated parts that work together to accomplish a goal. There are two types of systems: open-loop systems, which continuously interact with the environment or humans but do not self-regulate, and closed-loop systems, which operate and self-regulate without external interaction except for initial input settings. Examples of open-loop systems include computers, washing machines, and dishwashers, while closed-loop systems include air conditioners and hot water heaters.

1. SystemsEighth Grade TechnologyMr. Ruddle

2. What is a system?

3. A system is a group of interrelated parts that work together to accomplish a goal.What does “interrelate” mean?What is a system?

4. When things interrelate, it means that they make connections with multiple things. Usually, in a system, the interrelated parts depend on each other.What does “interrelate” mean?

5. Open-Loop SystemsClosed-Loop SystemsThere are two types of systems

6. Open-Loop Systems continuously interact with the environment or humans. Usually, an open-loop system does some function, then stops until it receives a command again.Closed-Loop Systems operate and self-regulate without interaction with the humans except for initial input. Usually, a person enters an initial setting and the system completes the same operation until an new setting is entered.What’s the difference?

7. Open-LoopedComputerWashing MachineDish WasherClosed-LoopedAir ConditionerHot Water HeaterWhat are some examples?

8. Universal Systems ModelNew KnowledgeControls / SensorsCRITERIAFeedbackGoalInputsProcessesOutputsMaterialTools/MachinesEnergyMoneyKnowledgePeopleTimeActionsResultsPurposeExpectations

9. SystemInterrelateOpen-Loop SystemClosed-Loop SystemGoalCriteriaInputsProcessesOutputsFeedbackVocabulary