**Quantum computing:**

The Literature Review study area that concentrates on the implementation of quantum theory principles for developing the computer technology is called Quantum computing. The main focus here is given to clarify the nature and character of energy and matter on the level of quantum. There is a lot of development in the quantum computing from the last billion-fold area in increasing the capacity of quantum computer in the similar way how the development from abacus to today’s super computer.

Quantum computing can be understood by learning the quantum laws of physics by which so much of processing power is achieved and the capacity will be developed to several states and these will together helps in executing the tasks in terms of parallel attainable combinations. Generally quantum computing depends on quantum laws of physics because there are many advantages from the quantum physics atoms and nuclei properties which are definite, as the quantum physics laws and quantum computing are permitted by these properties to work mutually as quantum bits or simply as qubits, to be the processor or memory of a computer. The advantage of qubits is particular calculation are made faster exponentially when compared to the usual computers.

The computations on usual binary characters is not the base for qubits always, because by using the usual computers the information is encoded using the binary characters particularly into bits is encoded into ‘1’ or ‘0’ and also the calculations for only one set of number can only done at a time. But in case of the quantum computers information is encoded into a series of quantum mechanical states like electrons in spin direction or arrangement of photon polarization which can also be represented with ‘0’ or ‘1’, or can also be represented as superposition of many numbers which are not similar and sometimes represented as a number that express the state of qubits represented among ‘1’ or ‘0’ anywhere or may also represented as orientation of both.

This Paper is written & submitted by **Vamshidhar A.**