1. Draw the gates required to build a half adder.

2. When simplified with Boolean Algebra (x + y)(x + z)simplifies to

3. The output of a logic gate is 1 when all its inputs are atlogic 0. the gate is either

4. Simplify the Boolean expression AB+(AC)`+AB`C(AB+C)

5. Design a device that will change serial data to paralleldata

6. Simplify the given expression to its SOPform. Draw the logic circuit for the simplified SOPfunction.

7. Design 4 to 1 mutiplexer using the design procedure:

8. Design 2 to 4 decoder :

9. Design 4 bit comparator:

10. Design 1 bit ALU:

11. What is the difference between a combinational circuit andsequential circuit? Give example of each.

12. Draw an arduino board and label 10 major parts.

13. Describe the general setup for anarduino board when used to design a digitalsystem.