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System Service Program system service program Supports and provides the services for other program. System service program perform Varity of tasks. They are further divided in
An operating system act as an intermediary between user of a computer and computer hardware. The objective of an operating system is to provide an environment in that a user can ex
justify the role played by the operating system in managing the process to avoid deadlock
Q. Presume that a system is in an unsafe state. Illustrate that it is possible for the processes to complete their execution without entering a deadlock state. Answer: An unsaf
What are the five major activities of an operating system in regard to process management? The creation and deletion of both user and system processes The suspension and res
Problem 1. What is kernel? What are the main components of a kernel? Defining Kernel Explaining Main components of Kernel 2. What is mutual exclusion? What are i
Swapping : Whole process is moved from the swap machine to the main memory for execution. Process size must be equal or less than to the used main memory. It is easier to exe
Describe the purpose of the checkpoint mechanism. How habitually must checkpoints be performed? Explain how the frequency of checkpoints affects: System performance while no
What are the advantages of Contiguous allocation? The advantages are a. Supports direct access b. Supports sequential access c. Number of disk seeks is minimal.
There are three kinds of Data Abstraction: Physical level: The minimum level of abstraction defines how data are saved. Logical level: The next bigger level of a
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