COMPUTER HARDWARE COMPONENTS FUNCTIONS
WHAT IS A MOTHERBOARD
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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: -An address register, which keeps track of where a given instruction or piece of data is stored in memory. Each storage location in memory is identified by an address, just as each house on a street has an address. A storage register, which temporarily holds data taken from or about to be sent to memory.
Detailed explanation-2: -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-3: -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. It places the address of the-required memory location in the MAR.