Quantum Computing, Quantum Circuits, Quantum Computer, Quantum.
are special case of qubits, until superposition is applied basically classical bits can be treated as computational basis, until we do not apply superposition 0 ≡ |0⟩ 1 ≡ |1⟩ 00 ≡ |00⟩ 01 ≡ |01⟩ Its only after superposition that we get an qubit which is linear combination of any two computation