4. a) Design a multiplier (Read it carefully, it does not spell multiplexer- but MULTIPLIER) to perform the multiplication of two 1-bit numbers and include the following in the submission: Truth table Boolean Equation Karnaugh maps (If applicable) (Simplified) Boolean equation. Simplified circuit. . . b) Design a multiplier to perform the multiplication of two 2-bit numbers. Use the block diagram of the 1-bit multipliers. You may need to use adders as well. Study how the long multiplication works. For example, see 10 and 11 are multiplied. 1 0 1 1 Multiplication 1*1 = 1 1*0=0 Multiplicationa 1*1 = 1 1*0=0 Addition 1 1 0