Across
- 4. when software takes a copy of files to protect against data loss and malware attacks.
- 9. an optical device that is easily damaged, cheap and accesses data slowly
- 11. A type of system software ex. Microsoft
- 12. when an algorithm is used to scramble plain text into cipher text.
- 14. a collection of wires that transmit data and instructions from one component to another
- 16. decodes instructions and sends signals to control how data moves around the CPU.
- 18. a general term covering computer programs
- 19. any information about a living individual that allows that individual to be identified
- 23. Is the part of the CPU which performs calculations
- 24. it is read-only
- 25. this can be calculated by doing Width x height x colour depth + 10% for metadata
- 26. memory a solid-state device that has limited numbers of read/write cycles
Down
- 1. part of the hard disk being used as memory
- 2. software that provides a platform on which users can run programs and maintain the computer system
- 3. cycles per second
- 5. all physical parts of a computer system
- 6. the person the stored data refers to
- 7. when software reduces the size of a file so it takes up less disk space and is quicker to download over the internet.
- 8. computer systems with a dedicated function within a larger mechanical or electrical system
- 10. 00111000 in denary
- 13. 11001100 in denary
- 15. the unit before petabyte
- 17. a defined list of characters recognised by computer hardware and software.
- 20. a small amount of memory in the CPU
- 21. when data is stored using pits and lands
- 22. the unit after megabyte