Notebook computer (Laptop), referred to as notebook, also known as "portable computer, laptop, handheld computer or laptop", its biggest feature is that the body is small, compared with the PC easy to carry, is a small, easy to carry personal computer, usually weighs 1m 3kg.
The current development trend is that the size is getting smaller and smaller, the weight is getting lighter and lighter, while the function is becoming more and more powerful. In order to reduce the size, notebook computers today use liquid crystal displays (also known as liquid crystal LCD screens). In addition to the keyboard, some are equipped with a touchpad (Touchpad) or a touch point (Pointing stick) as a positioning device (Pointing device).