AS Semester 1 Recap

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Across
  1. 3. type of RAM chip that needs to be constantly refreshed.
  2. 8. number of sound samples taken per second. (2 words no space)
  3. 10. requirement to charge a component to retain its electronic state
  4. 11. a lossless file compression technique used to reduce text and photo files in particular
  5. 12. type of RAM chip that uses flip-flops and does not need refreshing
  6. 14. a data structure containing several elements of the same data type.
  7. 15. – type of ROM chip that can be programmed once
  8. 16. the lag in a system
  9. 17. coding system which represents all the languages of the world (first 128 characters are the same as ASCII code).
  10. 21. the identification of parts of a problem that are similar and could use the same solution.(2 words no space)
  11. 22. a list containing several items operating on the first in, first out (FIFO) principle.
  12. 23. the process of breaking a complex problem into smaller parts.
  13. 24. – input device that reads physical data from its surroundings.
  14. 25. primary memory unit that can be written to and read from
Down
  1. 1. number of bits per second that can be transmitted over a network. (2 words no space)
  2. 2. – type of ROM that can be programmed more than once using ultraviolet (UV) light.
  3. 4. number of pixels per column and per row on a monitor or television screen.
  4. 5. base two number system based on the values 0 and 1 only.
  5. 6. method used to reduce the size of a sound file using perceptual music shaping. (2 words no space)
  6. 7. number of video frames that make up a video per second. (2 words no space)
  7. 9. number of pixels per square centimetre.(2 words no space)
  8. 13. a classification attributed to an item of data, which determines the types of value it can take and how it can be used. (2 words no space)
  9. 18. primary memory unit that can only be read from.
  10. 19. a collection of data stored by a computer program to be used again.
  11. 20. contents of a computer memory output to screen or printer. (2 words no space)