Flashcards
LU2- System Software
Cards in this deck (14)
- 1Operating System FunctionsControlling all hardware and software
Running application programmes
Providing a user interface - 2Process ManagmentEnough CPU time
Suitable resources
Efficiency - 3InterruptsA signals sent to the CPU requiring its attention
- 4Hardware InterruptsInterrupt Request Number = identifies where the interrupt comes from
- 5Virtual MemoryExtends the number of addresses the RAM has access to.
- 6Device DriversCommunicates with the peripherals device & translates between electrical signals and OS commands
- 7Plug and PlayAssigning an IRQ
*Switch off PC
*Plug in device
*Switch on PC - 8MultitaskingCPU switches very short bursts of processing time
- 9MultithreadingMore than one task in the same programme is being carried out.
- 10HyperthreadingDifferent threads in a programme sharing the use of one CPU.
- 11MultiprocessingHaving two or more CPUs
- 12Symmetric MultiprocessingTwo or more identical CPUs that are all treated equally.
- 13InterpretersReads each programme line
Converts it into machine code
Executes the machine code - 14CompilersThe code is transformed into an executable form before running.
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- Description
- Grade 11 Information Technology Flashcards on LU2- System Software, created by Andrea Blignaut on 04/06/2017.
- Created by
- Andrea Blignaut · Jun 2017
- Updated
- Jun 4, 2017
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