Hardware START Any instructions? No Yes Continue process The contents (instruction) of the MDR are then copied and placed into the Current Instruction Register (CIR) Yes Any more instructions to service? No END Hardware Address 1000 0000 1000 0001 1000 0010 1000 0011 1000 0100 Contents 0111 1100 1000 0011 1111 1101 0111 1110 1100 1101 1111 1100 1111 1101 1111 1110 1111 1111 0110 0011 1010 0111 1111 0011 Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware Hardware