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Define thrashing.
Thrashing is the accident of high page traffic and low CPU utilization. It is observed that the cause of thrashing is an under-commitment of memory to programs. The cure is to enhance the memory allocation for each program. This may perhaps have to be achieved by removing some programs from the memory that is by decreasing the degree of multiprogramming.
Q. Error detection in operating system? Error detection- Error detection take places at both the hardware and software levels. At the hardware level every data transfers must b
In which page replacement policy Balady’s anomaly occurs? FIFO (First in First Out)
Differentiate between sequential access and direct access method?
List and discuss the various services provided by the operating system. Program execution - system capability to load a program into memory and to run it. I/O operatio
What are the different accessing methods of a file? The different types of accessing a file are: Sequential access: Information in the file is accessed sequentially
Problem 1. What is kernel? What are the main components of a kernel? Defining Kernel Explaining Main components of Kernel 2. What is mutual exclusion? What are i
Define busy waiting and spinlock. When a process is in its significant section, any other process that tries to enter its critical section must loop continuously in the entry c
Explain about threading issues? The fork and exec system calls In a multithreaded program of few UNIX systems have chosen to have two versions of fork, one that duplicates e
What is the resident set and working set of a process? Resident set is that portion of the process image that is actually in real-memory at a certain instant. Working set is th
Question 1: a) Briefly explain each of the following terms: (i) Distributed systems. (ii) Real time systems. (iii) Multiprocessor. b) What is the impo
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