Important Digital Logic and Design Short Questions
Chapter: 5
Question 1:
What are the basic building blocks of digital systems?
Answer:
Digital Logic Gates provide the basic building blocks of digital systems. They perform operations on binary information.
Chapter: 5
Question 2:
How are digital logic gates represented in circuit diagrams?
Answer:
Digital Logic Gates are represented by unique symbols used in circuit diagrams to describe the function of a digital circuit.
Chapter: 5
Question 3:
What does a truth table represent in digital logic gates?
Answer:
A truth table represents the logic gate outputs for every possible combination of inputs in binary values.
Chapter: 5
Question 4:
What is the main function of an AND gate?
Answer:
The AND Gate performs a logical multiplication function where the output is 1 only if all inputs are 1.
Chapter: 5
Question 5:
What is the Boolean expression for a two-input AND gate?
Answer:
The Boolean expression for a two-input AND gate is F = A.B, where ‘.’ is the AND operator.
Chapter: 5
Question 6:
When does an OR gate output a 1?
Answer:
An OR gate outputs a 1 when any one of its inputs is at logic level 1.
Chapter: 5
Question 7:
What is the Boolean expression for a two-input OR gate?
Answer:
The Boolean expression for a two-input OR gate is F = A + B, where ‘+’ is the OR operator.
Chapter: 5
Question 8:
How does a NOT gate function?
Answer:
A NOT gate inverts the input signal; if the input is 0, the output is 1, and vice versa.
Chapter: 5
Question 9:
What is the Boolean expression for a NOT gate?
Answer:
The Boolean expression for a NOT gate is F = A', where A' is the inverted value of A.
Chapter: 5
Question 10:
What is a NAND gate and how is it represented?
Answer:
A NAND Gate performs an AND-NOT function and is represented by an AND gate symbol with a NOT gate (bubble) at the output.