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Q. What system calls have to be implementing by a command interpreter or shell in order to start a new process? Answer: In the UNIX systems a fork system call followed by an ex
Write a short note about the different STATES of a process. As a process implement it changes state. The state of a process is described in part by the current activity of that
Define properties of Real time operating system Real time :- Often used in a dedicated application, this system reads information from sensors and must respond within a fixed a
how do you calculate page faults
What is dispatch latency? The time taken by the dispatcher to stop one process and begin another running is known as dispatch latency.
What is the exclusive feature of UNIX Shell is the exclusive feature of UNIX.
What are the different file operations? Create : - Space for the file in the file system update directory table. Write : - file name and data to be written is
Q. If each the access rights to an object are deleted the object can no longer be accessed. At this stage the object should also be deleted and the space it occupies should be ret
Define what is Dispatcher In the Worker Model, it is the task of the Dispatcher to spawn a thread for every client-to-server connection. The Dispatcher acts as the go-between o
How many disk operations are needed to fetch the i-node for the file /usr/ast/courses/os/handout.t? Assume that the i-node for the root directory is in memory, but nothing else alo
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