The role of computers in control

  • Computers can respond very rapidly to change.
  • Systems can run 24 hours a day, 365 days a year.
  • Control systems can operate in places that humans would find dangerous or awkward.
  • Outputs are consistent and error free.
  • Computers can process data quickly and machines can operate faster than humans.

Computers are now used to control many types of devices such as:

  • air conditioning and central heating systems in large buildings
  • security systems and burglar alarms
  • manufacturing processes
  • traffic lights and pedestrian crossings
Traffic control sensors transferring feedback from sensor to workstation to server