Quantum computing is a type of computing that uses quantum bits, or qubits, to store and process information. Unlike classical bits, which can only have a value of 0 or 1, qubits can exist in multiple states simultaneously. This property, called superposition, allows quantum computers to perform certain types of calculations much faster than classical computers.

Another key property of qubits is entanglement, which means that the state of one qubit can be correlated with the state of another qubit, even if they are physically separated. This allows quantum computers to perform certain types of calculations in parallel, further increasing their speed.

Quantum computing is still an emerging field, and there are many technical challenges that need to be overcome before practical quantum computers can be built. However, researchers believe that quantum computers could have important applications in fields such as cryptography, materials science, and drug discovery.