In traditional computing, information is stored in bits accepting discrete values of either O or 1. For instance, if storing a particular number requires 32 bits, then 100 numbers will occupy 32 x100 = 3200 bits. In QC, the information is stored in quantum bits (or qubits). A qubit, can represent O and 1 parallely or exist somewhere in between. It enables larger storage and much faster calculation.

QC devices are based on the principles of quantum mechanics. They can solve multiple problems simultaneously and generate varied scenarios in a jiffy. There could be co-ordination between remotely placed computers. The effects could be applied across the geographies.

QC can be used in new drug development which takes on an average 10-15 years. Several permutations and combinations of molecules can be tried. These could be compared. QC can make the entire process faster.

QC can scale up production scheduling and solve problem through quantum based optimisation. It can enhance the efficiency of supply chain, by solving transport optimisation problems through simulation. It can be used in biology for DNA modelling. In finance, for portfolio optimisation and to spot fraudulent transactions. It can be used in weather forecasting.

QC can evolve to be more energy efficient.