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Description
Flashcards by Kwame Oteng-Adusei, updated more than 1 year ago
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Created by Kwame Oteng-Adusei
over 9 years ago
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| Question | Answer |
| User Interface | OS provides a link between the user and computer Graphical User Interface - menus, icons, windows Command Line Interface - user types in commands |
| Memory Management | Manages amount of memory used by each application Without OS, applications wouldn't run, as not enough space |
| Peripheral Management | Co-ordinates the basic output and input systems Device Driver Software allows hardware to be used by OS |
| Multi-Tasking | OS allocates each program a slice of the CPU's time Also determines priority in which programs should use CPU Enables several programs to run on computer at once |
| Security | Prevents unauthorised access through usernames, passwords Protects files from being read or written by other users |
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