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Q. Explain working of Direct Memory Access?
In both programmed I/O and interrupt-driven processor is busy with executing input/output instructions and I/O transfer rate is limited by speed with which processor can test and service a device. What about a scheme that needs minimal intervention of CPU for input/output? These two types of shortcomings can be overcome with a more efficient technique called as DMA that behaves as if it has taken over control from processor. C Consequently the question is: why do we employ DMA interface? It is employed primarily when a large amount of data is to be transferred from I/O device to Memory.
Q. What do you mean by Perfect Shuffle Permutation? Perfect Shuffle Permutation: It was proposed by Harold Stone (1971). Consider N objects each is represented by n bit number
Programmable read only memory (PROM) A PROM is a memory chip on which data can be written only one time. Once a program has been written onto a PROM, it's permanent. Unlike RAM
Transfer Functions Change the last bilinear interpolated images and the original images into the frequency domain using the FFT. Try to measure the magnitude transfer functio
What are superscalar processors? Several instructions start implementation in the same clock cycle, and the processor is said to use multiple issue. Such processors are capable
Define the difference between union and structure The main difference between union and structure is the storage allocation. In Union , for each variable the compiler allocates
What is the necessity of an interface? Any device that has to be linked to a CPU requires an interface. This takes care of the mismatch in speed, data and electrical character
What is difference between collaboration on task and event management? Web-based task management application let the user handle the multiple pieces and parts of large projects
Implementing Protection with Virtual Memory - computer architecture: To enable the operating system to implement protection in the VM system, the HW have to: I. Support at
How does dynamic memory allocation help in managing data
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