Kingdom of Saudi Arabia
Majmaah University
College of Engineering
EE 207 Lab
First Mid Term Exam
Academic Year: - 1435-1436 / 2014-2015
Subject: Logic Design Lab.
Date: 02 Nov, 2014 (08:00 – 10:00)
Term: Subject Code: Time: -
spring
EE 207
2:00 Hours
Name: _________________________________ ID: _____________________________
Question # 1:
(5 Points)
1- The Basic Level Digital Electronic Training Set is designed for basic _________
electronics applications.
2- The Handy Digital IC Tester is a digital test instrument particularly designed to ____
digital Integrated Circuit(IC).
3- Logic Probe is used to indicate the logic ______ of the individual circuit node (Level
Detector) and a Pulse Detector.
4-Term TTL stands for _________________________________.
5- Each variable can only have two distinct values: __ and ___.
6- A Truth Table is a table of all possible ________________ of the variables for inputs and
outputs.
7- The Three Basic Logic Operations are_________, ________, ________.
8- The AND operation is represented by a______.
9- Boolean Algebra is an algebra that deals with binary _________and logic ___________.
10- The Truth Table contains ___ combinations (rows) of 1’s and 0’s for ‘n’ number of
variables.
Question # 2:
(5 Points)
1- A literal is defined as:
a- Two variables
b- Single variable
c- More than two variables
2- A combination circuit that performs the addition of two bits is called:
a- Half adder
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b- Full adder
c-Half Subtractor
3- The circuit of the Half Adder needs:
a- One binary input and two binary outputs
b- two binary inputs and two binary outputs
c- Three binary inputs and two binary outputs
4- Sketch the diagram for the Boolean expression:
5- Write down the Boolean expression for D and B of the following:
Question # 3:
(5 Points)
Sketch the diagram for the Boolean expression:
S = A'B'C + A'BC' + AB'C' + ABC
C = A'BC + AB'C + ABC' + ABC
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Simplify the above expressions to minimum literals and again sketch the diagram form
minimised expression and verify the truth table. Complete the waveform diagram.
A
B
C
C
S
0
0
0
0
0
0
0
1
0
1
0
1
0
0
1
0
1
1
1
0
1
0
0
0
1
1
0
1
1
0
1
1
0
1
0
1
1
1
1
1
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Question # 4:
(5 Points)
Implement the following circuit and verify the truth table. Write down the Boolean
expression for D and B.
x
y
Z
D
B
0
0
0
0
0
0
0
1
1
1
0
1
0
1
1
0
1
1
0
1
1
0
0
1
0
1
0
1
0
0
1
1
0
0
0
1
1
1
1
1
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