Quantum computing Quantum computers function on the basis of Quantum mechanics, that describes the behavior of very small particles providing the basis for a new paradigm of computing. The Computer technology has developed so greatly over the many years, from a stage where the earlier computers were huge, expensive, to the stage especially today’s computers dramatically became smaller, cheaper, more efficient, and more powerful. It is the result of improvements in hardware, software, and architecture. Today’s palm size computers that fit in one’s pocket, have much computational power as the fastest supercomputers of 20 years ago. Let say the present classical super computer if it could solve a tough problem in 10000 years, the same problem is solved by the quantum computer in milli seconds . This is the computing power capacity of quantum computers. In a classical computer, we input the data from a key- board or other input devices and the signal is sent to the I/O...