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What are the benefits of multiprogramming?
Responsiveness: Multithreading is an interactive application may permit a program to continue running even if part of it is blocked or is performing a lengthy operation, thus increasing responsiveness to user.
Resource Sharing: By default threads allocate the memory and resources of the process to which they belong.
Economy: Allocating resources and memory for process is expensive. However since allocate resources it more economical
Utilization of multiprocessor architectures: The benefits of multithreading can be greatly improved in a multiprocessor architecture where each thread may be running in parallel on a different processor.
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 UNIX device driver The UNIX device driver is structured into two halves called top half and bottom half
Define the features are needed to implement top down parsing Source string marker, Prediction making mechanism and Matching and Backtracking mechanism
Q. Explain about Deadlocks? Deadlocks for (int i = 0; i // first find a thread that can finish for (int j = 0; j if (!finish[j]) { boolean temp = true; for
what are conditions
What is a multiprocessing system? Multiprocessor systems are those systems that use additional than a single processor for program execution. It is done for raising the executi
Write a note on the usage of semaphores. Semaphore is a synchronization tool and it is a variable having integer values. It is accessed only by two standard atomic operations w
Q. Why might a system utilize interrupt-driven I/O to manage a single serial port however polling I/O to manage a front-end processor such as a terminal concentrator? A
TURNAROUND TIME
Q. Regard as a logical address space of eight pages of 1024 words every mapped onto a physical memory of 32 frames. a. How several bits are there in the logical address? b. H
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