Quantum computing differs from traditional computing in its use of quantum bits or qubits, which can exist in multiple states simultaneously, enabling the processing of complex calculations at unprecedented speeds. Traditional computers use binary bits, limiting them to two states (0 or 1). This allows quantum computers to solve certain problems, such as factorizing large numbers or simulating molecular interactions, much more efficiently. However, they are still largely experimental and face challenges, including error correction and scalability issues compared to established classical computers. In summary, while traditional computing relies on sequential processing, quantum computing leverages the principles of quantum mechanics to revolutionize computation.