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Explain FIFO page replacement A FIFO replacement algorithm associates with every page the time when that page was brought into memory. When a page must be changed, the oldest p
What are the disadvantages of swapping technique used in pre-3BSD UNIX systems? If there is excessively much memory contention, processes are swapped out until sufficient
basic advantage of using interrupt initiated data transfer over transfer under program control without an interrupt
what is dual mode operation
What is process control block? Every process is represented in the OS by a process control block. It has many pieces of information associated with an exact process.
Consider a scenario of post mailbox, there are two processes named sender S and receiver R. Both processes can communicate with each other by name along with message. You need to I
CONTROL PROGRAMS Control Programs are those programs which control & maintain the operation of computer. They provide basic facilities. Control program are further divided into
What are the various disk-scheduling algorithms? The several disk-scheduling algorithms are a. First Come First Served Scheduling b. Shortest Seek Time First Scheduling
How the Nested Macro calls are expanded LIFO (Last in First out)
Q. Explain the booting process for a Windows XP system? Answer: (1) Since the hardware powers on the BIOS begins executing From ROMand loads as well as executes the bootstrap
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