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Multithreading Models the majority multithreading models fall into one of the following categories of threading implementation:
1. Many-to-One
2. One-to-One
3. Many-to-Many
Q. What is the use of system calls? Answer: System calls permit user-level processes to request services of the operating system.
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
Ask questiWhat is dispatcheron #Minimum 100 words accepted#
What is spooling? Spooling overlaps the I/O of single job with the computation of other jobs.
Utility Programs: those programs which are not the essential part of operating system. But they provide different utilities / features to the users e.g. MS-DOS : Fdisk, FORMAT, AT
Explain a boot control block A boot control block can have the information required by the system to boot an operating from that partition. If the disk does not have an operati
Explain the difference between internal and external fragmentation. Internal Fragmentation is the area in a region or a page that is not used by the job occupying that region o
Characteristics of suspend process Suspended process isn't immediately available for execution. The process may or may not be waiting on an event. For preventing t
What is a Latency Time Latency Time is the time required through a sector to reach below read/write head.
In a multiprogramming and time-sharing environment, several users share the system simultaneously. This situation can result in various security problems. a
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