Quantum computing is a type of computing that uses the principles of quantum mechanics to process information. Unlike traditional computers, which use bits as the smallest unit of data (0s and 1s), quantum computers use qubits. Qubits can represent both 0 and 1 simultaneously, allowing quantum computers to perform many calculations at once. This unique ability enables quantum computers to solve complex problems much faster than classical computers. They have the potential to revolutionize fields such as cryptography, drug discovery, and optimization problems, making them a significant area of research and development in technology today.