Operating System (OS)
To properly exit windows

None of the listed here
Select shut down from Start menu
Clike the exit button on the desktop
Click the stop button on the desktop

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Operating System (OS)
A real time operating system is most likely to be used for which of the following task?

Controlling the fuel injection system of an automobile engines
Controlling access to a shared printer in a network
Managing the access to system files in a laptop computers
Ensuring that system clock works correctly on server

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