The design of PARWAN Back TOP DESIGN DOWN DESIGN 7 Components ALU (Arithmetic Logic Unit) AC (Accumulator) SHU (Shifter Unit) SR (Shifter Register) IR (Instruction Register) PC (Program Counter) MAR (Memory Address Register) STATE MACHINE of Control Section 9 States State 1 State 2 State 3 State 4 State 5 State 6 State 7 State 8 State 9