Computers

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Across
  1. 3. a part of a computer that reads information on a hard disk
  2. 4. a device or program that stops people from seeing or using information on a computer
  3. 5. the main printed circuit board that contains the CPU of a computer
  4. 8. the instructions that control what a computer does; computer programs
  5. 10. a computer screen or a device with a screen on which words or pictures can be shown
  6. 11. central processing unit: the part of a computer that controls all the other parts
Down
  1. 1. a number that is given to each computer when it is connected to the internet
  2. 2. a computer program that makes it possible for you to read information on the internet
  3. 3. the physical and electronic parts of a computer, rather than the instructions it follows
  4. 6. information in an electronic form that can be stored and processed by a computer
  5. 7. an electrical device that supplies electric power to a computer
  6. 9. a device to provide a flow of air to cool the CPU