It is a line of tablet computers. It was first launched in April 2010. Since its release it more than 170 million I pads has been sold out. It was designed and marketed by the Apple Company. It contains a virtual key board, having a very sophisticated touch screen system and a built in Wi-Fi apparatus. The most recent i-pads known as the I-pad Air and I-Pad mini were displayed on 22nd October 2013. It has many functions like shooting videos, capturing photos games and efficient applications. The application store has more than 475,000 different types of applications. There are five versions of eye pad till to date. The first one had 9.7 inches screen, 2nd one was equipped with dual core A5 apple processor. Third generation attracted the user by a retina display. 4th version had A5 processor, last but not the least 5th model had a more efficient processing speed with more user friendly options.