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Class
Subject Code
Subject
Prepared By
Lesson Plan for
Time:
Lesson. No
I year, 02 sem
CS6201
Digital Principles & System Design
S.Seedhanadevi
Introduction to Unit I
45 Minutes
Unit I-Lesson No.1/13
1.CONTENT LIST:
Introduction to UnitI
2. SKILLS ADDRESSED:
Listening
3. OBJECTIVE OF THIS LESSON PLAN:
To make the students understand basic idea of Digital circuit design
4.OUTCOMES:
i.
Describe the major topics in Unit I
ii.
Explain the need of studying digital systems
5.LINK SHEET:
i.
What is digital system?
ii.
What is the need of studying digital systems?
iii.
List the major topics in Boolean algebra and logic gates
6.EVOCATION: (5 Minutes)
CS6201-DIGITAL PRINCIPLES AND SYSTEM DESIGN
Page 1

7. LECTURE NOTES: (40 Minutes)
Digital System
Logic circuits are the basis for modern digital computer systems. The term
digital refers to the fact that the signal is limited to only a few possible values. In general,
digits signals are represented by only two possible voltages on a wire - 0 volts (which are
called "binary 0", or just "0") and 5 volts (which are call by "binary 1", or just "1"). We
sometimes call these values "low" and "high", or "false" and "true".
Need of digital systems
More complicated signals can be constructed from 1s and 0s by stringing them
end-to-end, like a necklace.
If we put three binary digits end-to-end, we have eight possible combinations:
000, 001, 010, 011, 100, 101, 110 and 111. In principle, there is no limit to use
binary digits, so signals can be as complicated as one like
Major topics in Boolean algebra and logic gates
1. Review of number systems-is a natural choice for representing the behavior of
circuits that operate in one of two states (on or off, 1 or 0)
2. Arithmetic Operations-It is imperative to understand that the type of numeration
system used to represent numbers has no impact upon the outcome of any
arithmetical function (addition, subtraction, multiplication, division, roots,
powers, or logarithms).
3. Binary codes- The alphabetic data, numeric data, alphanumeric data, symbols,
sound data and video data, all are represented as combination of bits in the
computer.
4. Boolean algebra and theorems-The English mathematician George Boole (18151864) sought to give symbolic form to Aristotle's system of logic.
5. Boolean functions- Boole wrote a treatise on the subject in 1854, titled An
Investigation of the Laws of Thought, on Which Are Founded the Mathematical
Theories of Logic and Probabilities, which codified several rules of relationship
between mathematical quantities limited to one of two possible values: true or
false, 1 or 0
6. Simplifications of Boolean functions using Karnaugh map and tabulation
methods- A K-map consists of a grid of squares, each square representing one
canonical minterm combination of the variables or their inverse
7. Logic gates-A logic gate, or simply gate, is a special circuit designed to input
and output logic level voltages (voltages intended to represent binary bits).
8. NAND and NOR Implementations- Universal gates are the ones which can be
used for implementing any gate like AND, OR and NOT, or any combination of
these basic gates; NAND and NOR gates are universal gates
8.TEXT BOOKS:
Sanjay Kumar Suman, L.Bhagyalakshmi, S.Porselvi, “Digital Principles And System
Design”,Vijay Nicole Pubilcations
9.APPLICATIONS
The digital system is used to represent various types of computer data. It is used
to design various circuits in real time as controller, indicator etc.
CS6201-DIGITAL PRINCIPLES AND SYSTEM DESIGN
Page 2

Class
Subject Code
Subject
Prepared By
Lesson Plan for
Time:
Lesson. No
I year, 02 sem
CS6201
Digital Principles & System Design
S.Seedhanadevi
Review of binary number systems
45 Minutes
Unit I-Lesson No.2/13
1.CONTENT LIST:
Review of binary number systems.
2. SKILLS ADDRESSED:
Understanding, Remembering
3. OBJECTIVE OF THIS LESSON PLAN:
To make the students understand basic conversions in number system and enable
them to apply in different design of logic circuits.
4.OUTCOMES:
i.
Describe the significance of binary numbers in digital circuits.
ii.
Illustrate various conversions in number system with examples.
5.LINK SHEET:
i.
What are binary numbers?
ii.
Give the need of using binary numbers.
iii.
List the types of conversions in number systems.
6.EVOCATION: (5 Minutes)
CS6201-DIGITAL PRINCIPLES AND SYSTEM DESIGN
Page 3

SRIVIDYA COLLEGE OF ENGINEERING AND TECHNOLOGY-VIRUDHUNAGAR
7. LECTURE NOTES: (40 Minutes)
Binary Number definition
The binary numeral system is also called as base-2 number system,
represents numeric values using two symbols 0 and 1. More specifically, the usual base-2
system is a positional notation with a radix of 2.
Significance of Binary Numbers
The study of number systems is useful to the student of computing due to the fact that
number systems other than the familiar decimal (base 10) number system are used in the
computer field.
Digital computers internally use the binary (base 2) number system to represent data and
perform arithmetic calculations. The binary number system is very efficient for computers,
but not for humans. Representing even relatively small numbers with the binary
system requires working with long strings of ones and zeroes.
Types of Number system conversions and its explanation
8.TEXT BOOKS:
Sanjay Kumar Suman, L.Bhagyalakshmi, S.Porselvi, “Digital Principles And System
Design”,Vijay Nicole Pubilcations
9.APPLICATIONS
The binary numbers are used for representing various types of computer data. It is
used to design various digital systems.
CS6201-DIGITAL PRINCIPLES AND SYSTEM DESIGN
Page 4

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