MT 121
Midterm II Preparation
1. Determine the truth table for the following circuit:
March 2014
X=the output
2. Simplify the following circuit using Boolean algebra rules and laws (no K-map):
1
3. Simplify the following expression using a K-map. Show all

Practice for Final
MT 121
2016
1. Determine the LOGIC CIRCUIT (schematic) for the following truth table:
C
0
0
0
0
1
1
1
1
B
0
0
1
1
0
0
1
1
A
0
1
0
1
0
1
0
1
Output X
0
0
0
1
1
0
1
1
a. Write the logic expression of output X. (0.5p)
b. Draw the schematic

Experiment # 5
The Majority Vote System
Objective: To design, build, and test a combinational logic circuit using Karnaugh maps
as a way of simplification.
Problem Statement:
A city council of a small town consists of four council members who must
vote on

MT 121 Digital Systems I
Laboratory Assignment # 6
Designing a Five-Vote Majority Circuit
Objective: To design, build, test and demonstrate a five-vote majority circuit, using two
different designes.
Problem Statement:
"A nearby city has learned of the fo

MT 121 Digital Systems I
Laboratory Exercise 4
Trouble Shooting Digital Circuits
Introduction: In this lab you will learn how to trouble shoot circuits stage by
stage. Other names of this method of trouble shooting may beSignal
Tracing or Waveform Analysi

MT 121 Digital I Experiment III
Multiple Gate Circuits with Time-Varying Inputs
Before you start: Youll have to preserve this circuit for the next labTrouble-shooting.
Do not disassemble it at the end of the day. Also, preserve the counter part of the cir

MT 121 DIGITAL I Experiment II
Building Multiple Gate Logic Circuits
Introduction
The objective of the experiment is to build simple logic circuits and then to verify that they
operate properly. A companion objective is to gain practice in laying out logi

Lecture about Combinational Circuits
Adder Basic Operation
Lets build a device that can add two binary digits together. We can quickly calculate
what the answers should be:
0 + 0 = 0
0 + 1 = 1
1 + 0 = 1
1 + 1 = 102
So we will need two inputs (a and b) and