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Q. Explain about Time Sharing Systems?
Time Sharing Systems
Multithreading - Operating systems that permit different parts of a software program to run concurrently. Operating systems that would come into this category are: Linux UNI
Unisex Restroom Problem
Define the Global vs. local variables It is also important to discuss the scope of resources being granted to the application program. Variable scoping is defined as the acces
Invalid page fault :If a page fault happens for a reference to an address that's not part of the virtual address space, so that there could not be a page in memory corresponding
LRU approximation page replacement In this we are able to use the reference bit associated with the page entry to choose a page to be removed. The various algorithms used for
wat are the commands used for creating the file hierarchy
What are the various file operations? The six basic file operations are Creating a file Reading a file Writing a file Repositioning within a file Tr
LOOK o Like SCAN except stops moving inwards (or outwards) when no more requests in that direction exist. C-SCAN (circular scan) o Moves inwards servicing requests u
Direct communication With direct communication each process that requires to communicate must explicitly name the recipient or sender of the communication. The send and receive
How can a user program disturb the normal operation of the system? a) Issuing illegal I/O operation. b) By accessing memory locations within the OS itself. c) Refusing to
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