3 An aspect of Input /Output controller of data logic is called
Zero Buffering
Buffering
Data Buffering
General Buffering
Answers
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Q. An aspect of Input /Output controller of data logic is called
(A) Zero Buffering
(B) Buffering
(C) Data Buffering
(D) General Buffering
Answer => (B) Buffering
Explanation -:
--> A buffer is a memory area used to temporarily hold data that has been read off a device or that is to be written on it.
--> For an input file, the technique of buffering tries to prefetch the data so that it would be available to a process without having to perform an I/O operation, which reduces or eliminates the wait time.
--> For an output file, it copies the data into the buffer and lets the process continue its operation; the actual writing is performed later. The technique of blocking reads more data off a device in a single I/O operation than required by a process at a time; it reduces the number of I/O operations to be performed.