Quantum computing is a type of computing that uses quantum bits, or qubits, instead of classical bits, to perform calculations. Qubits can exist in a state of superposition, meaning they can represent multiple values at once, and they can also become “entangled” with other qubits, allowing for faster processing and parallel computations.

In classical computing, the basic unit of information is a bit, which can be either a 0 or a 1. In contrast, qubits can represent both 0 and 1 at the same time, which allows quantum computers to perform certain calculations much faster than classical computers.

This ability to exist in multiple states simultaneously allows quantum computers to tackle complex problems in fields such as cryptography, drug discovery, and materials science. However, building and programming quantum computers is still a major challenge, and they are not yet widely available for general use.

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