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explain about oprating system services and topics briefly
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
What is internal fragmentation? Consider holes of 20k assume the process requests 18 bites. If we allocate accurately the request block, we are left with a hole of 2k. The over
Explain the various page replacement strategies. Page replacement-basic scheme with diagram Optimal page replacement LRU page replacement FIFO page replacement LRU
We can view an operating system as a resource allocator. Explain. We can outlook an operating system as a resource allocator. A computer system has Many resources (software and
Determine the syntax of the assembler directive EQU The following is syntax of the assembler directive EQU: EQU
What are the operations that can be performed on a directory? The operations that can be performed on a directory are Search for a file Create a file Delete a
Define deadlock. A process requests resources; if the resources are not available at that time, the process enters a wait state. Waiting processes might be never again change s
advantages and disadvantages of kernal level thread
Write a short note on disk scheduling One of the responsibities of operating system O/S is to use the hardware efficiently. Whenever a process requires I/O to or from the
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