Karteikarten
Ohne Titel
Karten in diesem Stapel (10)
- 1Purpose of an operating systemLinks hardware to software and provides an UL
- 2Functions of an operating systemFiles - saving, loading etc
Memory Allocation
Security - Usernames/password, encryption - 3OS Security methodsEncryption - storing information in a form readable only by the intended person
Usernames and passwords - allows different levels of access for different user - 4InterruptsHardware - printer out of paper etc
Software - program has an error needs to close etc - 5Why do we need interruptsTo stop running processes when an error occurs
- 6Explain the interrupt steps of a printer that has run out of paper1. Send interrupt OUT of PAPER to PC
2. OS notifies user.user fills printer
3. Printer sends signal that it is now ready
4. OS reseeds docs printer restarts printing - 7Code levelsHigh level
Assembly code
Machine code
Hardware
IN ORDER - 8Types of high level codePython
Java - 9Translators are needed for ?To convert programming code into machine
- 10What is the difference between a translatorA compile converts code before it is run
A translator converts it as it is entered
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- Karteikarten am Ohne Titel, erstellt von 12.stickley am 04/12/2015.
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