Flashcards
Operating system
Cards in this deck (12)
- 1An operating system is....the core software that allows a computer to run as a useful device.
- 2an operating system...loads and runs programs
- 3an operating system...maximises the use of memory (ram)
- 4an operating system...handles inputs and outputs from peripheral devices
- 5an operating system...maintains the seurity of the system
- 6an operating system maintains the security of the system by...- check usernames and passwords
- keep a log of computer usage
- organise scheduled backups - 7multi-programming is where....several programmes appear to be running at once. the operating system switches jobs in and out of processor time according to priority
- 8batch processing is where....a group of data is processed all together in one go.
- 9multi-tasking is where...allows multiple tasks to run concurrently, taking turns using the resources on the computer
- 10multi-access is where...several users can use the same system via a LAN (local area network)
- 11real-time processing is where....the computer has to react within a guaranteed time to an input, a real-time operating system is used. eg flight simulator.
- 12Interactive processing is where...the tasks on the computer system require a continual exchange of information between the user and computer system
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- GCSE ICT Flashcards on Operating system, created by zjones-b on 26/03/2015.
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- zjones-b
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