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Quantum computing is a branch of computing that utilizes the principles of quantum mechanics to perform certain types of computations more efficiently than classical computers. Unlike classical bits, which can exist in one of two states (0 or 1), quantum bits, or qubits, can exist in multiple states simultaneously due to the phenomenon known as superposition. This enables quantum computers to process information in parallel and potentially solve certain problems much faster than classical computers. It's important to note that quantum computing is still in the early stages of development, and practical, widespread applications are likely to take several more years to emerge. The field continues to evolve rapidly, with new breakthroughs and challenges emerging regularly.