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Computer Fundamentals - Engineering

Q1:

Which of the following registers hold the information before it goes to the decoder

A control register

B data register

C accumulator

D address register

E None of the above

ANS:B - data register

Data register : is a register used to temporarily store a data being transmitted to or from a peripheral device.

Memory data register (MDR) : is a register used for holding information that is in the process of being transferred from the RAM to CPU or vice versa.