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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.
What is Server in SAP terminology? A component can having of one process or a group and is then known as the server for the respective service.
State the SELECTIVE CLEAR - logic micro operations The selective-clear operation clears to 0 bits in register A only where there are corresponding 1's in the register B. For
Page fault frequency in an operating system is reduced when the? When locality of reference is appropriate to the process so Page fault frequency in an operating system is redu
Explain overlay structured program ? A program having overlays is termed as overlay structured program, here an overlay is a part of program that has similar load origin as som
Like ULINE the statement VLINE is used to insert vertical lines. No , Vline is not used to insert vertical lines.
Uniform Memory Access Model (UMA) In this model, the main memory is uniformly shared by all processors in multiprocessor systems and each processor has equal access time to sha
SELECTIVE COMPLEMENT The selective-complement process complements bits in register A where there are corresponding 1's inside register B. It does not affect bit positions which
Explain Non-Folded network Non-Folded Network: In a switching network, every inlet/outlet connection may be utilized for inter exchange transmission. In this case, the .excha
What are various IDs associated with a process? Unix identifies each process with a unique integer known as ProcessID. The process that implements the request for creation of a
What is a Spool request? Spool requests are formed during dialog or background processing and placed in the spool database with information about the printer and print format.
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