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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.
Problem 1 (a) Identify and briefly describe the possible roles of Codes of Ethics (b) Describe why is a code of ethics important to stakeholders. (c) Explain how should
what is cascade rollback
Q. Find 9's complement for decimal number? The 9's complement is achieved by subtracting every digit of number from 9 (the highest digit value). Let's assume that we want to si
The VLSI technology is still developing. More and more powerful microprocessors and more storage space now are being put in single chip. One question that we have still not conside
What are two reasons for using layered protocol? Layered protocol implies protocols used into each layer are the layer's own business that is they don't influence protocol of a
Calculate the blocking probably Pb in 100 line strowger switching system where 10 calls are in progress and 11th one arrives, probably that there is a call in a given decade = 1/10
state function and path function
Q. Describe the Limitation of FAT16? DOS designers decided to use clusters with as a minimum four sectors in them (so a cluster size of at least 2KB) for all FAT16 hard disks.
This unit starts by discussing the importance of involving users in the interaction design process, explaining the reasons why user involvement can be useful, the different degrees
RAW and WAW - Data hazards: RAW (read after write) - j tries to read a source before i writes it, hence j wrongly gets the old value .This is the most usual type of
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