A laptop computer or notebook computer, also known as laptop or notebook for short, is a small, portable personal computer(PC). Laptops typically have a clamshell form factor with a flat panel screen(usually 280 - 430 mm in diagonal size) on the inside of the upper lid, and an alphanumeric keyboard and pointing device(such as trackpad) on the inside of the lower lid, although 2 in 1 PCs with a detachable keyboard are often marketed as laptops. Most of the computer's internal hardware is fitted inside the lower lid enclosure under the keyboard, although many laptops have a built-in webcam at the top of the screen and some modern ones even feature a touch-screen display. In most cases,k unlike tablet computers which run on mobile operating systems, laptops tend to run on desktop operating systems which have been tradittionally associated with desktop computers.edit
PORTABILITY is usually the first feature mentioned in any comparison of laptops versus desktop PCs. Physical portability allows a laptop to be used in many places-not only at home and office but also during commuting and flights, in coffe shops, in lecture halls and libraries,etc.edit
PRODUCTIVITY: Using a laptop in places where a desktop PC cannot be used can help employees and students to increase their productivity on work or school tasks, such as an office worlker reading their work e-mails during an hour-long commute by train, or a student doing there homework at the university coffe shop during a break during lectures, for examples.edit
Laptops are smaller than desktop PCs. This is beneficial when space is at a premium, for example in small apartments and student dorms. When not in use, a laptop can be closed and put away in a desk drawer.edit
Laptops are less durable than desktops/PCs. However, the durability of laptop depends on the user if proper maintenance is done then the laptop can work longeredit
Battery life is limited because the capacity drops with time, eventually warranting replacement aftaer as little as 2-3years. A new battery typically stores enough energy to run the laptop for five to six hours or more, depending on usage and the battery sizeedit
