1- Derive the control gates associated with the program counter PC in the basic computer.

2- Identify the 2's complement of 101010101.

(a) 010101010 (b) 101010101 (c) 010101000

(d) 110101011 (e) 01010101

3- The number of input variables which a NOT gate can have is

a. One

b. Two

c. Three

d. Four

e. Any number

4. Use Karnaugh map to generate a simple Boolean expression for this truth table, and draw a gate circuit equivalent to that expression:

A B C	F
000	0
001	0
010	1
011	0
100	0
101	0
110	1
111	0