EE6301 – DIGITAL LOGIC CIRCUITS – Two Marks
UNIT I - NUMBER SYSTEMS AND DIGITAL LOGIC FAMILIES
1. Define binary logic?
Binary logic consists of binary variables and logical operations. The variables are
designated by the alphabets such as A, B, C, x, y, z, etc., with each variable having only two
distinct values: 1 and 0. There are three basic logic operations: AND, OR, and NOT.
2. What are the basic digital logic gates?
The three basic logic gates are
3. What is a Logic gate?
Logic gates are the basic elements that make up a digital system. The electronic gate is a
circuit that is able to operate on a number of binary inputs in order to perform a particular logical
4. What is meant by bit?
A binary digit is called bit.
5. What is the best example of digital system?
Digital computer is the best example of a digital system.
6. Define Radix.
It specifies the number of symbols used for corresponding number system. .
7. Define Nibble and Byte.
In binary number a group of four bits nibble.
A group of 8 bits are called Byte.
8. List the number systems?
i) Decimal Number system
ii) Binary Number system
iii) Octal Number system
iv) Hexa-decimal Number system
2nd YEAR/ 3rd SEMESTER – Department of EEE - PSNACET