Structure and function of the processor and systems software

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Across
  1. 5. (4) Small storage locations within the CPU for fast data access.
  2. 6. (10) The three-stage cycle used by the CPU to process instructions (Three words).
  3. 8. (1) The main processing unit of a computer.
  4. 9. (12) A register that stores intermediate arithmetic and logic results.
  5. 11. (14) Non-volatile memory that stores the BIOS and boot instructions.
  6. 12. (13) Volatile memory that temporarily stores running programs.
  7. 13. (17) The core of an operating system that manages resources.
  8. 14. (16) Software that manages hardware and provides a user interface (Two words).
  9. 16. (8) Bus that carries memory addresses from CPU to RAM (Two words).
  10. 18. (20) Memory management technique that moves processes into and out of RAM.
  11. 19. (19) A signal sent to the CPU to indicate an event requiring attention.
Down
  1. 1. (15) Part of storage used as temporary RAM when physical memory is full (Two words).
  2. 2. (9) Bus that carries actual data between components (Two words).
  3. 3. (2) The part of the CPU responsible for arithmetic and logic operations.
  4. 4. (18) Software that allows an OS to communicate with hardware (Two words).
  5. 7. (3) CPU component that manages instructions and execution flow (Two words).
  6. 8. (6) Measurement of how fast a processor executes instructions (Two words).
  7. 10. (5) High-speed memory used to store frequently accessed data.
  8. 15. (11) Holds the address of the next instruction to be executed (Two words).
  9. 17. (7) A communication pathway between components in a computer.