Across
- 2. Updates the operating system with the latest security and performance ‘patches’ released by the software’s creators
- 4. Based on Linux, developed by Google; one of newest phone OS’s, runs on a lot of phones
- 5. Medium, up to 50GB, cheap
- 7. Also possible to install more than one OS at once and choose which one to use
- 10. Sets options for disabled users, such as increased font size or screen contrast
- 12. Used to compress and back up important files
- 14. computers represent all date internally as binary digits
- 16. it works on several different platforms
- 19. The OS requires each user to __ themselves with a username and password
- 22. The basic software included with operating systems to performing common ‘housekeeping’ tasks, helping to maintain and manage the computer
- 24. OS for Mac computers, based on UNIX, a system designed around security. Apple added a user-friendly graphic interface
- 25. Monitors system resources such as processor and memory usage and otimises them to improve performance
- 27. Fast, up to 2B, cheap
- 28. Can take advantage of many types of hardware; a popular choice on high end hardware like supercomputers and mainframes, plus embedded devices.
- 30. the sets of instructions which hardware follows in order to perform tasks
- 31. very fast, up to 500GB, very expensive
- 32. user types a series of commands using the keyboard
Down
- 1. 8 bits grouped together into more meaningful units
- 3. modern coding scheme which aims to solve some of the problems of ASCII
- 5. responsible for managing and controlling all of the computer's hardware
- 6. Used to detect and remove malicious software such as viruses, Trojan horses, and spyware.
- 8. Secure folders, files and disks in the event of theft or loss of the computer
- 9. Free software which is “unix-like”
- 11. Most common OS; browser = Internet Explorer
- 13. operated with a mouse or similar pointing device
- 15. some operating systems run on multiple types of hardware platforms
- 17. A particular combination of hardware and operating system
- 18. Popular OS for mobile phones, managed by Nokia.
- 20. Slow, up to 5TB, very cheap
- 21. Optimises hard disk performance by arranging files into contiguous sectors
- 23. Used to compress files to save disk space or network bandwidth and decompress them again
- 26. each pixel in an image uses___of storage space
- 29. Detects and deletes unneeded files such as temporary files created by some applications that have built up over time. This helps reclaim valuable disk space