Computer Systems

4. Storage device that uses magnetic storage to store and receive digital information
6. Used to detect and remove anything malicious
7. A large program that controls the operation of a computer system
8. Malicious, duplicates itself onto system to corrupt files and system
10. Masks itself as a safe program, steals information, takes over host system
11. Specialised OS designed for a specific task, not for a computer
14. The main printed circuit board which connects all other components in a computer system
15. An output device that displays information being input from end user in pictorial form
16. Rearranges data stored, so that same data is together and retrieval is easier
19. A form of computer memory that can be read and changed in any order
20. Called the brain of a computer, performs basic arithmetic, logic, controlling, and input/output functions

1. Tracks the user's internet activities
2. Programs used to reduce file sizes to be sent ore easily
3. Software designed to help analyse, configure, optimise or maintain a computer
5. Any program or group of programs designed for the end user
9. OS that runs on personal computer or mobile
12. A connection with special features and abilities usually specific to an OS
13. Replicates itself and destroys data saved on host computer
17. Used to prevent, detect and remove any viruses that may be on your computer
18. Anything malicious that will harm your computer