Scientists at IBM have reportedly achieved an important breakthrough in the development of quantum computer. For long it has been widely known that Moore's Law would eventually fail and scientists have been working on systems to further improve computing speed. This is were the importance of quantum computers is realized. Quantum computers would rapidly speed up processing time and would be immensely useful in extracting meaningful information for a large heap of data.
Today's computer understand information in the form of bits. A bit can have only two values '1' or '0', i.e. 'on' or 'off' state. Now, bit in a quantum computer is called quantum bit or 'qubit'; this qubit can have values '1', '0' or both 1 & 0 at the same time. This condition of having both states at the same time is called superposition and is represented by '0+1'. The sign in superposition is important as 0 & 1 have a phase relationship. Superposition is what makes quantum computers faster than today's computers.
More about this can be read at the original article posted on 'phys.org'.
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