By now, the most common computer is still electronic computer, but IBM researchers are heading to make it happen.
It's well known, the classical computer uses bit, as 0 or 1 ,to store data. But in quantum computer, a new buzz word or lingo called 'Qubit' will be used to replace the bit.
Anyway, it's still very far away from us. The scientists are optimistic to get the work quantum computer within 15 years.