Thursday, July 9, 2009

Quiz #3

1.What are the major activities of the OS with regards to process management?

=>Process creation and deletion

=>Process suspenion and resumption

=>Provision of mechanisms for:

  • * process synchronization
  • *process communication
  • *deadlock handling

2.What are the major activities of the OS with regards to main-memory management?

=>Keep track which parts of memory are currently being used and by whom.

=>Decide which processes to load when memory space becomes available.

=>Allocate and deallocate memory space as needed.

3.What are the major activities of the OS with regards to secondary-storage management?

=>Free space management

=>Storage allocation

=>Disk scheduling

4.What are the major activities of the OS with regards to file management?

=>File creation and deletion

=>Directory creation and deletion

=>Support of primitives for manipulating files and directories

=>File backup on stable (nonvolatile) storage media

=>Mapping files onto secondary storage

5.What is the purposeof the command interpreter?

=> It reads commands from the user or from a file of commandsand executes them, usually by turning them into one or more systemcalls. It is usually not part of the kernel since the command interpreteris subject to changes.

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