Vom Neumann Registers

Question 1

Program counter (PC)

Answer 1

Contains the memory address of the next instruction to read from memory .

Question 2

Memory address register (MAR)

Answer 2

Contains the address for the current instruction in memory or the next data transfer address.

Question 3

Memory data register MDR

Answer 3

Contains the contents of the memory address that the mar is pointing to and contains data to be transferred.

Question 4

Accumulator (AC)

Answer 4

Contains processed data or data about to be processed, including arithmetic and logic results.

Question 5

Current instruction register (CIR)

Answer 5

Contains the current binary instruction that is being executed.