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#1
What happens to data when a buffer is used?
I'm trying to figure some things out for buffering, and am pretty confused, can someone please help me out...
A. It is stored in the buffer until the operating system uses it. Then the data area becomes overwritten by the buffer.
B. It is stored in the buffer until the operating system uses it. Then the data area becomes overwritten by the buffer. Then the data is loaded from the main memory.
C. It is stored in the buffer until the user needs access to the data. Then the data area becomes overwritten by the buffer. Then the data is loaded from the main memory
D. It is stored in the buffer until the user needs access to the data. Then the data area becomes overwritten by the buffer. Then the data area becomes overwritten by the buffer.
Thank you