Operating System (OS)
The term "operating system" means

conversion of high level language into machine code
a set of programs which controls computer working
None of these
the way a computer operator works
the way a floppy disk drive operates

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

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

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Operating System (OS)
What hole will allocates in "Worst-Fit" algorithm of memory management?

It allocates the smallest hole from the available memory holes
It allocates the largest hole from the available memory holes
It allocates the smaller hole than required memory hole
It allocates the exact same size memory hole

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Operating System (OS)
The CPU, after receiving an interrupt from an I/O device

halts for a predetermined time
branches off to the interrupt service routine immediately
hands over control of address bus and data bus to the interrupting device
branches off to the interrupt service routine after completion of the current instruction
None of these

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