Quantum computing is a type of computation that harnesses quantum phenomena like superposition and entanglement. Unlike classical computers that use bits (0s and 1s), quantum computers use quantum bits or qubits that can exist in multiple states at once.

Imagine a coin spinning in the air - it's not just heads or tails but in a superposition of both states until it lands. Quantum computers leverage this principle to perform complex calculations much faster than traditional computers for certain problems.