Computing Hardware

2. A store for data in a computer that cannot be overwritten - it stores the boot sequence for the operating system
9. The central printed circuit board that holds the crucial components of the system
11. Secondary storage device using magnetised platters to store data and files - usually a hard drive
12. A hardware device used to input data into a computer system for processing
15. Non-volatile storage used to store programs and data even when power is turned off
16. Works with the CPU to control the flow of data within the system
17. technology based on electronics with no moving parts
18. Performs all the arithmetic and logical operations within the CPU
19. This is the process the CPU goes through every second depending on clock speed
22. A CPU with two processors

1. RAM is an example of this
3. Solid state memory used in portable devices and as removable storage
4. A system of numbers using only two digits 0 and 1
5. The internal logical structure and organisation of the computer hardware
6. Data lost when there's no power
7. Main memory of a computer that stores data, applications and the operating system whilst in use
8. Secondary storage device used lasers to read and write data to a reflective surface
10. A section of the hard disk used as if it were RAM to supplement the amount of main memory available to the computer
13. Data retained even when power turned off
14. A part of the computer architecture that transfers data and signals between the components of the computer
16. Special high speed memory used by a computer to store frequently used instructions
20. Contains the control unit, ALU and cache memory
21. A CPU with four processors