COMPUTER HARDWARE
MOTHERBOARDS AND EXPANSION CARDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To check that students are in school.
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To temporarily hold bits of data needed by the CPU.
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To make sure that the CPU runs properly.
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To make the CPU faster.
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Detailed explanation-1: -It is used to hold the memory addresses of data and instructions. It accesses data and instructions from memory during the execution phase of an instruction. For example, the CPU wants to store some data in the memory or to read the data from the memory.
Detailed explanation-2: -The Temporary Register (TR) is used for holding the temporary data during the processing.
Detailed explanation-3: -A processor register (CPU register) is one of a small set of data holding places that are part of the computer processor. A register may hold an instruction, a storage address, or any kind of data (such as a bit sequence or individual characters). Some instructions specify registers as part of the instruction.
Detailed explanation-4: -memory address register (MAR)-holds the address of the current instruction that is to be fetched from memory, or the address in memory to which data is to be transferred.
Detailed explanation-5: -A memory buffer register (MBR) or memory data register (MDR) is the register in a computer’s CPU that stores the data being transferred to and from the immediate access storage.