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Write a short note on PCB? Every process is represented in the operating system by a process control block also called a task control block. It contains more information regard
what is difference between file descriptor and file pointer?
SEGMENTATION HARDWARE An execution to map two-dimensional user-defined addresses into one-dimensional physical addresses. This mapping is affected by means of segment table. Ev
Define Program preemption The Forced de-allocation of the CPU from a program which is executing on the CPU is known as Program preemption
We can view an operating system as a resource allocator. Explain. We can outlook an operating system as a resource allocator. A computer system has Many resources (software and
Q. What is the effect of permitting two entries in a page table to point to the same page frame in memory? Describe how this effect could be used to decrease the amount of time ne
A- In a table format, compare between Programmed I/O, Interrupt -driven I/O, and Direct Memory Access (DMA) in terms of basic idea, Advantages, disadvantages, and the operating en
Write a Perl script assignGrades.pl to assign letter grades to the students.
Explain with an example the need of Shift Alteration in critical section problem? Consider processes P i and P j and consider the algorithm for P i and P j .
what is it all about? why do we need? what are the types of backup? how is it done in unix?
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