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Explain FIFO Page replacement algorithm.
FIFO policy: This policy only removes pages in the order they entered in the main memory. By using this policy we simply eliminate a page based upon the time of its arrival in the memory. For illustration if we have the reference string: 1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5 and 3 frames here 3 pages can be in memory at a time per process, after that we have 9 page faults as demonstrated:
If frames are increased say to 4, after that number of page faults also arises, to 10 in this case.
List the typical functions of operating systems. Classical functions of operating system are given as: (1) Process management: A process is a program throughout execution.
Q. Explain use of MPI functions with an example? include int main(int argc, char **argv) { int i, tmp, sum, s, r, N, x[100]; MPI_Init(&argc, &argv); MPI_Comm_size
What is double data rate SDRAM? Double data rates SDRAM are those which can transfer data on both edges of the clock and their bandwidth is fundamentally doubled for long burs
draw the flowchart for operator overloading in c++
The data bus is Bi-directional because the similar bus is used for transfer of data among Micro Processor and memory or input / output devices in both the direction.
What is the difference between, page directive include, action tag include? Ans) One difference is whereas using the include page directive, in translation time it is making t
What is a serial port? A serial port transfers and receives data single bit at a time.
The velocity of sound in air is 49.02 feet per second where is the air temperature in degrees Rankine. Write a function to execute this. If just 1 argument is passed to the f
Solve the equation 23.6 10 = X 2 for X Ans. 23.6 10 = X 2 So as to find X, firstly convert the Decimal number 23.610 in its Binary form. After that take the decimal inte
Elements of Parallel Computing and Architecture Parallel computing. Then we shall describe why we need parallel computing and what the heights of parallel processing are. We s
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