DE – Part B – Unit 2 – Logic Gates

1️⃣ Explain EX-OR Gate.

• Symbol : ⊕
• Boolean Expression : Y = A ⊕ B

2️⃣ Define Universal Logic Gates and its types.

English Answer:

Universal Logic Gates are the logic gates that can be used to implement any Boolean function or logic circuit without using any other type of gate.

1. NAND Gate
2. NOR Gate

Tamil Answer:

Universal Logic Gates என்பது மற்ற Logic Gates இன்றி எந்த Boolean function அல்லது logic circuit-ஐயும் உருவாக்க பயன்படுத்தப்படும் gates ஆகும்.

Types:

1. NAND Gate
2. NOR Gate

3️⃣ Draw the symbol of AND Gate and write its Truth Table.

English Answer:

Output is HIGH only when all inputs are HIGH.

Tamil Answer:
Output HIGH ஆக இருக்கும், only when all inputs HIGH ஆக இருக்கும்.

4️⃣ What is Logic System?

English Answer:
A Logic System is a symbolic method used to represent the two states (0 and 1) of a circuit.

Types:

• Positive Logic System
• Negative Logic System

Tamil Answer:
Logic System என்பது ஒரு circuit இன் இரண்டு state களை (0 மற்றும் 1) பிரித்துக் காட்டுவதற்கான symbol முறையாகும்.
Types:

1. Positive Logic System
2. Negative Logic System

5️⃣ Draw the symbol of OR Gate and write its Truth Table.

6️⃣ Define Logic Gates.

English Answer:

Logic Gates are the basic building blocks of digital circuits.
They perform logical operations on binary inputs (0 and 1) and produce a binary output.

Tamil Answer:

Logic Gates என்பது digital circuits-இன் basic building blocks ஆகும்.
இவை binary inputs (0 மற்றும் 1) மீது logical operations செய்து,
ஒரு binary output-ஐ உருவாக்கும்.

7️⃣ What is Positive Logic?

• High Voltage (5 V மட்டும்) = Logic 1
• Low Voltage (0 V) = Logic 0

8️⃣ Draw the Logic Diagram for Y = AB + B′C.

• Boolean Expression : Y = AB + B′C

9️⃣ Explain EX-NOR Gate.

🔟 What is Negative Logic?

• Low Voltage (0 V) = Logic 1
• High Voltage (5 V) = Logic 0