Quantum computing qubit quantum bit

There are many different types of bits and qubits, but all qubits must adhere to the laws of quantum physics and be able to exist in a quantum superposition.

A classical bit can only exist in either a 0 position or a 1 position. Qubits, however, can also occupy a third state known as a superposition. A superposition represents 0, 1, and all the positions in between taken at once, for a total of three separate positions.

While qubits can encode three separate positions, they are still used to convey information through a binary system. In such systems, the term bit can refer to either the material or process used to represent a 0 or 1, or the measurement of that bit (i.e., a 0 or a 1).