CLB--Lesson 2 Software and Hardware Interaction

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Across
  1. 4. A CPU's clock speed stated in a billion cycles per second
  2. 7. Part of CPU; performs arithmetic calculations and logical operations
  3. 8. The case that contains a computer's main system components
  4. 11. Type of memory that loses its contents when power is turned off; RAM
  5. 12. The fetching and decoding operations that make up the machine cycle
  6. 15. The four basic operations that the CPU carries out
  7. 17. Stores the basic data the ALU needs to perform its calculations and the results of of it
  8. 19. Permanent memory that does not lose its contents when power is turned off; ROM
  9. 20. Memory that helps the CPU to speed up processing
Down
  1. 1. Roughly equivalent to one character
  2. 2. Swapping of data by the OS between RAM and virtual memory
  3. 3. The number of instructions the CPU can process per second
  4. 5. The computer's main circuit board
  5. 6. A single chip that contains more than one processor; boosts the speed of the computer
  6. 9. Technique that allows the OS to handle many parts of a single program
  7. 10. Memory stored on single chips on the motherboard; cannot be overwrited
  8. 13. Thin metal plate or board with an extensive electronic circuit
  9. 14. Coordinates all of the processor's activities and manages the flow of information
  10. 16. A CPU's clock speed stated in a million cycles per second
  11. 18. The executing and storing operations that make up the machine cycle
  12. 21. Single computer chip that contains circuitry to process data