Notebook of we often call it “laptop” is a small portable mobile PC used to perform similar tasks done by PCs. A laptop has all the necessary parts of a general personal computer, the monitor, keyboard, CPU, etc. but compact in a much smaller space, done by using a lot of microchips. Since it can be used while on the move; hence, it has got a rechargeable battery inside it. Generally it has a thickness of 1.7 to 4 cm.

The first portable computer, Osborne 1 came in the market in the year 1981.With a small 5“ CRT screen. It was a massive device as compared to the present day laptop. GRiD Compass 1100, was the first laptop which used the clamshell design, produced in 1982. Just the following year the Gavilan SC came in the market, which was the first notebook to use the term laptop.

On the basis of purpose, laptops are generally being classified as follows:

Subnotebook laptops, which have been built keeping the portability, factor in mind. Hence, they are not very big in size and have a maximum of 13“ screen, with less features and ports and quite a long battery life, even as long as 10 hours. They are made by using the latest technology and advanced materials. They generally use the desktop operating systems like Linux, Windows or Mac OSX.