Across
- 4. each xxx can independently process data. The more xxx the more instructions it can carry out per second - most PC’s have 4 to 8 of these
- 6. contains the instructions to boot the system.
- 8. xxxxx xx xxx is determined by clock speed + number of cores + amount of cache
- 10. xxxxxx xxxxx main circuit board which other devices such as RAM and CPU plug into
- 12. xxxxx xxxxx the number of instructions a single processor core can carry out per second measured in Hertz Hz this is know as?
- 14. xxxxxxx xxxxxxx holds the address of the next instruction to be fetched
- 15. xxxxxx xxxx xxxxxxxx holds the instruction to be decoded by the controlunit unit or it can hold data waiting to be written to memory
- 20. xxx unit is responsible for controlling data flow in and out of the CPU and around the computer system. It contains the PC program counter
- 21. unit of measurement for data storage
- 22. xxxxxxx xxxxxx is required when + The amount of free RAM is too low it uses secondary storage as RAM + very slow due to use of secondary storage
- 23. non-volatile memory
- 24. smallest unit of measurement for data transfer
- 25. requires power to retain its contents
- 26. optical storage media
Down
- 1. store data using magnetic layers coated on platters
- 2. Very fast - expensive memory within the CPU. Doesn’t speed up the CPU. Lower capacity than RAM + Stores regularly used data – so the CPU can access it quickly next time needed
- 3. xxx systems are Easier to design - cheaper to produce - more efficient than none dedicated system + computers built into other devices.
- 5. xxx storage is none volatile + stores operating system + apps + files when powered off or when app not being used
- 7. xxxxxx xxxxxxx xxxxxxxx holds the memory address which is loaded
- 8. xxxxx xxxxx smaller and faster access speeds that hard drives, memory stick and flash cards are examples
- 9. drives uses lasers to read and write data to discs
- 11. MDR and the MAR are examples of these
- 13. xxx drive is an example of magnetic storage
- 16. Performs all of the maths and Boolean logic operations
- 17. used as the MAIN MEMORY in a computer and is loaded with, operating + system applications + data files
- 18. stores intermediate results of calculations (within the ALU) Arithmetic and Logic Unit
- 19. xxx systems designed to perform a singular task.