A notebook or laptop is nothing but a small portable computer that weighs 2.2 to 18 pounds (1 to 8 kg), that depends on its brand, style, size, material it is made of, and many other factors. Notebooks generally operate on a single main battery or through an external adapter that can both charge the battery and also supply power to the notebook.
Notebooks are adept at performing the same jobs like a personal desktop; the only difference is that they are generally less powerful for the same cost. They consist of similar components like desktop computers and execute the same functions, except that they are miniature in size and suitable for transportable use and effective power consumption. Notebooks usually have LCD and different memory modules. They have a built-in keyboard; input is done through a touchpad or a pointing stick, though an external mouse can also be attached.
There are different categories of notebooks. UMPCs are Ultra-Mobile PCs and are very portable. Since they are of a small size they can fit in a small touch screen while some other models have a minute physical keyboard along with a mouse interface. The other type is Ultraportables which are...