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Explain Busy Waiting Semaphores Weak, Busy-wait Semaphores a) The simplest way to implement semaphores. b) Useful while critical sections last for a short time, or we com
Direct memory access Many computers avoid burdening the main CPU with programmed I/O by offloading sine if this work to a special-purpose processor known as a direct memory add
prepare electricity bill without using file
Q. What are the reasons for process suspension? Reasons for process suspension 1. Swapping 2. Timing 3. Interactive user request 4. Parent process request
Define the “turn-around” time of a user job Turn- around time is total time taken to execute the job.
Objective - Tiny Shell (tish) In this exercise you will write a small shell program to run different programs in foreground and background mode. Background Usually when
In modern operating systems, applications do not directly access the physical memory. Instead, they use so-called virtual memory, where each virtual address is translated to a phys
People arrive at a barber shop at the rate of one every 4.5 minutes. If the shop is full (it can hold five people altogether), 30% of the potential customers leave and come back i
1. What must a kernel provide for an effective user-level thread implementation? 2. With respect to the quantum q in a scheduling algorithm, explain and discuss the impact of th
For the heat conduction problem, investigate the effects on the numerical solution of the following aspects: 1. non-uniform meshes with re?nement at both ends versus a uniform m
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