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Determine what the “blocking factor” of a file is Blocking factor is the number of logical records in one physical record
What are the functions of virtual file system (VFS)? a. It separates file-system-generic operations from their execution defining a clean VFS interface. It permits transparent
The Most comman difference are given below System calls are heavy. While a procedure call can generally be performed in a few system instructions, a system call needs the c
A Unix shell is a shell or command-line interpreter that gives a traditional user interface for the Unix-likesystems and for Unix operating system. Users operates the operation of
The procedure for handling the page fault is as follows 1. We check the internal table to verify whether the reference was valid or invalid. 2. If the reference was invalid,
advantages and disadvantages
Differentiate tightly coupled systems and loosely coupled systems? Loosely coupled systems:- Every processor has its own local memory Every processor can communicate
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
what is cpu
Q. Show the services which provided by operating system? A) Resource Allocation: If there are more than one user or jobs running at the same instance then resource
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