Answer:
QC process the same information in quantum bits or qubits which are 1s and 0s. qubits have a third state called “superposition” that allows them to represent a one or a zero at the same time
For Example, Factoring / Multiplying two large numbers is easy for any computer. But calculating the factors of a very large (say, 200-digit) number, on the other hand, is considered impossible for any PC. While Quantum Computers can perform the same task in few seconds.
