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short note on context switching
Write a Perl script assignGrades.pl to assign letter grades to the students.
Q. Several CPUs provide for more than two modes of operation. What are two probable uses of these multiple modes? Answer: Although most systems merely distinguish between use
What is the information associated with an open file? Various pieces of information are associated with an open file which may be: File pointer Disk location of th
a summary of what operating system do
Logical File System Responsible for providing the before discussed interface to the user including: File access. Directory operations. Security and protection.
mention the three problems that mat be caused by wrong initialization and placement of wait() and signal()operations in the use of semaphore
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
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 about threading issues? The fork and exec system calls In a multithreaded program of few UNIX systems have chosen to have two versions of fork, one that duplicates e
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