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Windows 7: What happens to data when a buffer is used?

15 Jul 2015   #1
lowpro3210

Windows 7 Ultimate x64
 
 
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


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16 Jul 2015   #2
ICIT2LOL

Desk1 7 Home Prem / Desk2 10 Pro / Main lap Asus ROG 10 Pro 2 laptop Toshiba 7 Pro Asus P2520 7 & 10
 
 

Hello and welcome lowpro mate I don't know why you ask this as it just happens to be part of the machinations of computing / computers - in the instance you are referring to see this https://en.wikipedia.org/wiki/Data_buffer - if you look at Applications in that link it gives a fairly good analogy for what is going on.
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16 Jul 2015   #3
UsernameIssues

W7 Pro SP1 64bit
 
 

The answer is:

E. None of the above.


edit: I think/hope that is the correct answer. Any discussion?
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 What happens to data when a buffer is used?




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