Control unit (CU) - Decodes the instructions; controls the timing of operations in the CPU, Arithmetic Logic Unit (ALU) - Performs arithmetic and logic operations, Registers - PC - Program counter for the next instruction, Registers - MAR - Memory address register for the memory location of data to be fetched, Registers - MDR - Memory data register for the data retrieved from RAM, Registers - ACC - Accumulator stores the results from the ALU,

CPU 1

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