Logic Gates

Logic gates are the fundamental decision-making building blocks of digital electronics. Learn each gate individually, then discover how they are implemented using transistors.

0️⃣1️⃣ → 🔀 → 💻

Logic gates process binary values, 0 and 1, by switching electronic signals.

Billions of these switching circuits work together to create the processors inside every modern computer. Start with the NOT gate, then continue through the remaining gate families.

🔄 NOT Gate (Inverter)

Start Here

Learn why a NOT gate is called an inverter, study its truth table, and explore an interactive NPN transistor implementation.

📖 Open Lesson

➕ AND Gate

Coming Soon

Outputs HIGH only when every input is HIGH.

➖ OR Gate

Coming Soon

Outputs HIGH when any input is HIGH.

🚫 NAND Gate

Coming Soon

The inverse of the AND gate and one of the most important universal gates.

🚫 NOR Gate

Coming Soon

The inverse of the OR gate and another universal gate.

⊕ XOR / XNOR

Coming Soon

Exclusive OR and Exclusive NOR for comparison and arithmetic circuits.