Flashcards
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Flashcards do conjunto (10)
- 1purpose of operating systemlinks hardware
- 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 username and passwords -> allows different levels of access for different users - 4interrupsHardware -> printer out of paper etc Software
- 5Why do we need interrupts ?To stop running processes when error occurs
- 6Explain the interrupts step of a printer that has run out of paper1. Send interrupt OUT of PAPER to PC
2. OS Notifies 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 - 8Types of high level codePython, Java
- 9Translators are needed for?to convert Programming code into Machine code (010101)
- 10what is the difference between a tlanslatorA Compile converts code before it is run.
A translator converts it as it is entered
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- FlashCards sobre Sem título, criado por 12.vasiljevas em 04-12-2015.
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- 12.vasiljevas
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