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Define buffering.
A buffer is a memory area that keeps data whereas they are transferred among two devices or among a device and an application. Buffering is done for three reasons
a. To cope with a speed mismatch among the producer and consumer of a data stream
b. To adapt among devices that have dissimilar data transfer sizes
c. To support copy semantics for application I/O
Explain what ISAM is. Indexed sequential access method. The file is stored in sorted order. ISAM has a master index file, indicating in what part of another index file the key
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FIFO page replacement This is the easiest page replacement algorithm. At this juncture the 1 st page entering is the 1 st to leave that is the oldest page leaves. To execute
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Q. How does DMA raise system concurrency? How does it make difficult hardware design? Answer: DMA increases system concurrency by allowing the CPU to perform tasks while the
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Present your own fully documented and tested programming example illustrating the prevention of a data race in a parallelised program. This is an example where total number of p
Operations that are to be performed on a directory are Search for a file: We are able to find all files whose names match a exact pattern. Create a file: New files requi
explain the link between operations management and strategic planning of daily goods shop
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