Embedded Systems

Question 1

what is an embedded system? Name 3 everyday items that contain embedded systems

Answer 1

• A small computer imbedded within a larger system for operation from a user; it performs specific tasks
• Kettle
• Microwave
• ATM
  etc. ..

Question 2

what two things do micro-processors use to function? Describe the two

Answer 2

• Actuators and sensors

Actuators:

• Used to move or control the output
• A type of motor that converts energy (e.g. from electric current) into motion

Sensors:

• Takes a signal and executes a function based on that signal
• E.g. Thermal sensors sense heat and function to turn a fan on