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Q. What is the purpose of system calls?
Answer: System calls permit user-level processes to request services of the operating system.
Discuss the high barriers to entry in the market for PL operating systems
DESIGN GOALS OF WINDOWS XP.DESCRIBE IN DETAIL.
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
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
Q. Polling for an I/O completion is able to waste a large number of CPU cycles if the processor iterates a busy-waiting loop several times before the I/O completes. However if the
What is spooling? Spooling overlaps the I/O of single job with the computation of other jobs.
When programming with threads, there are three very common mistakes that programmers often make: 1. locking twice (depending on the system and type of lock, can cause crashes, h
example of first fit best fit and worst fit
What are the use of job queues, ready queues and device queues? As a process enters a system they are put in to a job queue. These queues having of all jobs in the system. The
how the system call is work?
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