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Placement algorithms:calculate where in available real-memory to execute a program. Common functions are next-fit, first-fit, and best-fit.
Replacement algorithms:are needed when memory is almost full, and one program requires to be swapped out to accommodate a new process. The replacement algorithm calculates which the partitions to be swapped out are.
Explain the OS/2 Operating System Like NetWare, OS/2 manage resources at three levels, as shown in Figure 4.5 Resources may be maintained at the session, process, and thread le
Q. Can a system detect that some of its processes are starving? If you answer "yes," explain how it can. If you answer "no," explain how the system can deal with the starvation pro
what operating system mean
List ways to share files among directories in operating systems. a. Copy file from one account into another. b. Link directory entry of "copied" file to directory entry of o
Q. State three merits of placing functionality in a device controller rather than in the kernel and State three disadvantages. Answer: Three advantages: Bugs are less probabl
What is paging? Paging is a memory management scheme that authorizes the physical-address space of a process to be noncontiguous. Paging evades the considerable problem of fi
What are the four necessary conditions of deadlock prevention? Ans: Four essential conditions for deadlock prevention: a. The meaning of removing the mutual exclusio
What advantages are there to this two-level directory? Users are isolated from each other. Users have more freedom in choosing file names.
BENEFITS OF THREADS OVER PROCESS If implemented correctly after those threads have some advantages of (multi) processes, they take: 1. Less time to create a new thread tha
What is a Relocatable program? The Relocatable programs can be loaded almost anywhere in memory.
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