FUNDAMENTALS OF COMPUTER

OPERATING SYSTEMS FOR COMPUTERS

COMPUTER OPERATING SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A ____ is a small block of memory inside hardware devices such as printers, keyboards and hard drives where work currently being handled by that device is stored
A
buffer
B
page
C
segment
D
thread
Explanation: 

Detailed explanation-1: -Direct Memory Access (DMA) Structure Device controller transfers blocks of data from buffer storage directly to main memory without CPU intervention. Only one interrupt is generated at the beginning and end of each block, rather than at the beginning and end of each word.

Detailed explanation-2: -Caches are used to store temporary files, using hardware and software components. An example of a hardware cache is a CPU cache. This is a small chunk of memory on the computer’s processor used to store basic computer instructions that were recently used or are frequently used.

Detailed explanation-3: -Cache memory is an extremely fast memory type that acts as a buffer between RAM and the CPU. It holds frequently requested data and instructions so that they are immediately available to the CPU when needed.

Detailed explanation-4: -Spooling, an acronym of Simultaneous Peripheral Operation On-line (SPOOL), puts data into a temporary working area so it can be accessed and processed by another program or resource. Buffering is an act of storing data temporarily in the buffer.

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