Flashcards
Untitled
Cards in this deck (10)
- 1Purpose of operating system.Links hardware and software also provides an UI.
- 2Functions of Operating System.Files saving loading etc
Memory Allocation
Security - Usernames/passwords, encryption - 3OS Security Methods.Encryption-> storing information in a form readable only intended by the person.
Usernames and passwords-> allows different levels of access for different users - 4InterruptsHardware-> printer out of paper etc
software -> program has an error needs to close etc. - 5Why do we need interrupts?To stop running processes when an error occurs
- 6Explain the interrupt steps of a printer thats ran out of paper.1. 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. - 8Types of high level codePython, Java.
- 9Trasnlators are needed for?to convert programming code into machine code (010101)
- 10What is the difference between a translatorA compile converts code before it is run.
A translator converts it as it is entered.
Information
- Description
- Flashcards on Untitled, created by cara vicedomini on 04/12/2015.
- Created by
- cara vicedomini
- Views
- 0
- Rating