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What is critical section problem?
Consider a system consists of 'n' processes. Every process has segment of code called a critical section, in which the process might be changing common variables, updating a table, writing a file. When one process is implementing in its critical section, no other process can allowed implementing in its critical section.
Question: (a) Modern processors operate in one of two modes: one for the operating system and one for applications. What is the purpose of having these two modes? What are
Define Ageing Ageing is a method of enhancing the priority of process waiting in Queue for CPU allocation
What are the objectives for a file management system? To meet the data management wants and requirements of the user, which embrace storage of data and the ability to
Difference between cache and associate memory
Symmetric multiprocessing To get maximum reliability and efficiency a mode of function called as symmetric multiprocessing is used. In essence, with SMP any program or threads
Explain the steps in deadlock recovery. a) Exterminate off all processes involved - drastic. b) Exterminate off one at a time till deadlock gone - select a victim.
Suppose a logical address space is 1KB, and the page-size is 16 bytes. Assume no page is in the main memory for this process initially and the pure demand paging is used. Current f
Q. Explain about Operating System Services? An operating system offers services to programs and to users of those programs. It provided by one environment for execution of
VARIABLE PARTITIONING We can differ the partitions and change the location according to the size of the process. 50k 40k
a summary of what operating system do
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