The Memory Data Register (MDR) is designed such that it _____.a.is physically connected to each cell in memoryb.is logically connected to all registersc.can be activated by the program counterd.is effectively connected to every cell in the memory unit
Question
The Memory Data Register (MDR) is designed such that it _____.a.is physically connected to each cell in memoryb.is logically connected to all registersc.can be activated by the program counterd.is effectively connected to every cell in the memory unit
Solution
The correct answer is d. The Memory Data Register (MDR) is effectively connected to every cell in the memory unit.
Here's why:
The Memory Data Register (MDR) is a component of a computer's central processing unit (CPU) that holds the data being transferred to and from the computer's memory. In other words, it is the register of a computer's control unit that contains the data to be stored in the computer storage (e.g., RAM), or the data after a fetch from the computer storage. It acts like a buffer and holds anything that is copied from the memory ready for the processor to use it or vice versa. Therefore, it is effectively connected to every cell in the memory unit.
Similar Questions
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