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Interrupts
The hardware mechanism that enables a device to inform the CPU is called an interrupt. The basic interrupt mechanism works as follows. The CPU hardware has a wire known as the interrupt-request line that the CPU senses after implementing every instruction.
Now let's implement bounded producer-consumer with semaphores, a Coke machine which is initially empty: semaphore sem_mutex = 1 // binary semaphore for mutual exclusion, 1==unlo
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
In a multiprogramming and time sharing environment several users share the system simultaneously .what are two such problems?
Write short note on recovery regarding the file system in Windows 2000. In many file systems a power breakdown at the wrong time can damage the file system data structures so s
Explain Rehashing to Handle Collision Rehashing: Re-hashing schemes make use of a second hashing operation while there is a collision. If there is an additional collision, we
Demand paging gives that pages could only be brought into memory if the running process acts them. This is usually referred to as lazy evaluation as only those pages operated by
Optimal page replacement An optimal page replacement algorithm has the least page fault rate of all algorithms. The algorithm states that put back the page that will not be us
How does communication takes place in a distributed system? Distributed systems depend on the networking for their functionality. A network is a communication path among two
What are the different directory structures? Explain each type. There are five dissimilar directory structures: 1. Single level directory 2. Two level directory
Q. Illustrate the Operating System Components? Modern operating systems share the goal of supporting system components. System components are: 1. Process Management 2.
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