Today the computer industry is increasing rapidly and is the most important industry in the world.  It is known that the computer industry and its technologies are playing key role in all sectors. It is estimated that over 6% of the world’s gross domestic products are produced using digital technology. Today, businesses are extensively using computer and PCs in to increase productivity and efficiency. In the Sectors like telecommunications, consumer electronics, medical research and automobiles computers are playing vital role. Computer-based products range from deciphering the human gene to exploratory and teaching toys.

It is known that 96% of teachers in the US have computers in their classroom. It is also estimated that 16.4% computers sold in America are laptops. A typical American spent on their computers rose by 20% in 2011-2012.

Now people are vividly buying handheld computing devices, Smartphones, Tablets and etc for social net working and browsing.