CRTmonitors - used in specialist area and use light pen to created it on screen , LCD screen  - main output devices for most modern computer , LED screen  - made up of tiny light emitting diodes, touch screen - use in smartphones or tablet can touch, multimedia projectors - training and advertising presentation, laser printer - high quality and hard copy , inkjet printer - produce good quality and loe volumes are required , dot matrix printer - used in application where multi part stationary , Graph plotter - producing engineering drawing , £d printer - to print on object , speaker - used in all phones and built in to most of computer , actuators - used to control motors, pumps and switches on ,

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