laptop

Laptops began from a desire to have a full-eatured computer that could be easily used anywhere. These all-in-one systems could be easily transported, but were heavy and usually were not battery powered. The cathode ray tube (CRT) was one of the major reasons portable computers were so large and heavy, but the use of a full-size desktop motherboard with room for ISA expansion cards was another size factor.

It was the transition to LCD and plasma displays that permitted the luggable to shrink in size and become the first real laptop, though at first still without internal batteries. Battery technology improvements and the introduction of smaller devices such as the 3.5 inch floppy disk permitted a gradually more compact and sophisticated complete portable system.

A laptop computer, also known as a notebook computer is a small personel computer designed for mobile use. A laptop intergrates all of the typical components of a desktop computer, including a display, a keybord, a pointing device( a touchpad or a pointing stick) and a battery into a single portable unit.The main advantage of laptops over their larger desktop counterparts is the inherent portability. Another advantage is the laptop's ability to operate on battery power in the case of a power outage and less energy consumption.

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