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Operating Systems Concepts
Which of the following is a block device
mouse
printer
terminals
disk
None of the above
Correct Answer:
disk
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Operating Systems Concepts
Which, of the following checks, cannot be carried out on the input data to a system?
Semaphores
The technique, for sharing the time of a computer among several jobs. Which switches jobs so rapidly such that each job appears to have the computer to itself:
A public key encryption system
Which of the following is characteristic of an operating system?
What is the initial value of the semaphore to allow only one of the many processes to enter their critical section?
In which of the storage placement strategies a program is placed in the largest available hole in the main memory?
Page-map table is
What scheduling algorithm allows processes that are logical runnable to be temporarily suspended?
Paging
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