computer technology

  • Created by: Abigail
  • Created on: 24-04-15 19:03


  • a system that is open loop have no feedback at all and continues to work without interference from control system
  • this can be a major disadvantage in automated processes due to the no checks and balances if anything goes wrong
  • a system that works closed loop can have two types of feedback; 
  • POSITIVE - feedback is an automated process that results in the system become unstable. Reasoning for this is that any increase in the output leads to an increase in input and so on
  • NEGATIVE - feedback changes the input so that the output is decreased to provide stable operation conditions
  • HUNTING - occurs when a system cannot reach…


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