Computers today are all around us in one form or another from large servers in data centres through to small embedded systems. Here are a few examples of computer systems.
  • Mobile phones
  • Calculators
  • Watches
  • Interactive whiteboards
  • Projectors
  • Printers
  • Tablets
  • Laptops
A computer system takes in and processes data and outputs information. This is done through a combination of hardware and software.
The diagram below shows a computer system in its most basic form.
  • HARDWARE -Computer hardware refers to the physical parts of a computer and related devices.
  • SOFTWARE- the set of instructions that keeps your computer running

external image InputProcessOutput%20%281%29.png?height=202&width=400

input: the hardware used to enter data


  • process: the hardware that produces results from the entered data

  • output: the hardware that displays the results

  • storage: the hardware/software used to store the information for later retreval


THIS VIDEO WILL HELLP YOU TO UNDERSTAND MORE ABOUT THE TOPIC:

https://sites.google.com/a/clarke.uk.com/ks3-cs/home/computer-systems
http://www.techterms.com/definition/hardware
http://www.youtube.com/watch?v=pTdSs8kQqSA&feature=player_embedded