Quantum computing is an advanced field of computing that leverages the principles of quantum mechanics to perform complex computations at unprecedented speeds. Unlike classical computers, which use bits (0s and 1s), quantum computers use qubits that can exist in multiple states simultaneously due to superposition and entanglement. This enables them to solve problems in cryptography, optimization, and drug discovery much faster than traditional computers. Although still in its early stages, quantum computing holds the potential to revolutionize industries by tackling problems that are currently infeasible for classical systems.