Recap Semester 1 AS

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Across
  1. 5. high speed memory external to processor which stores data which the processor will need again.
  2. 7. contents of a computer memory output to screen or printer.(2 words)
  3. 8. short for operation code, the part of a machine code instruction that identifies the action the CPU will perform.
  4. 9. smallest picture element that makes up an image.
  5. 10. input device that reads physical data from its surroundings.
  6. 15. a number system based on the value 16
  7. 16. the identification of parts of a problem that are similar and could use the same solution.(2words)
  8. 19. number of video frames that make up a video per second.(2 words)
  9. 20. temporary component in the processor which can be general or specific in its use that holds data or instructions as part of the fetch-execute cycle.
  10. 21. group of bits used by a computer to represent a single unit.
  11. 22. requirement to charge a component to retain its electronic state.
  12. 23. a single operation performed by a CPU.
  13. 25. the part of a machine code instruction that identifies the data to be used by the CPU.
Down
  1. 1. hardware used to connect together a number of devices to form a LAN that directs incoming data packets to a specific destination address only.
  2. 2. the process of extracting information that is essential, while ignoring what is not relevant, for the provision of a solution.
  3. 3. the process of breaking a complex problem into smaller parts.
  4. 4. each binary digit is reversed and 1 is added in right-most position to produce another method of representing positive and negative numbers.(2 words)
  5. 6. type of touch screen technology. When a finger touches the screen, the glass layer touches the plastic layer, completing the circuit and causing a current to flow at that point.
  6. 11. mode of addressing in which the memory address used is the current memory address added to the operand.
  7. 12. number of bits used to represent the colours in a pixel,(2words)
  8. 13. base two number system based on the values 0 and 1 only.
  9. 14. coding system which represents all the languages of the world
  10. 16. external connection to a computer which allows it to communicate with various peripheral devices.
  11. 17. the lag in a system.
  12. 18. a unit made up of ALU, control unit and registers which is part of a CPU.
  13. 22. number of pixels per column and per row on a monitor or television screen.
  14. 23. mode of addressing in which the contents of the contents of the memory location in the operand are used.
  15. 24. indicates the status of a bit in the status register,