National 4/5 Computing Science REVISION 2

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Across
  1. 2. The computer's own language
  2. 3. A signal which changes continuously rather than in steps, such as temperature and speed
  3. 5. The use of computing resources that are delivered as a service over the internet
  4. 6. When someone pretends to be someone else in order to carry out fraud
  5. 7. Field type check
  6. 9. A single unit in binary, either a 1 or 0
  7. 10. Variable which can only contain two values e.g. YES/NO
  8. 11. Paints pictures by changing the colour of the pixels
  9. 13. An interface which enables the user to work with icons and mouse
  10. 15. Clock speed is measured in this unit
  11. 16. Joining of two or more strings
  12. 18. Part of a computer system that allows different devices to communicate with the processor
  13. 20. A device that controls the quality of output on a monitor
  14. 21. A company that provides a host computer to which the user can connect in order to access the internet
Down
  1. 1. The act which covers the use of media
  2. 4. A set of wires which carries the address information from the processor to the memory
  3. 8. A type of application software which protects a computer systems against attack or infection by malware
  4. 9. A measure of the quantity of data which may be carried by a communications channel at any one time
  5. 12. Takes the user to another page within the same website
  6. 14. Using a person's physical characteristics to provide evidence of their identity
  7. 17. To enter data into a computer system
  8. 19. Required to change an analogue signal into a digital signal