laptop computer

portable computer

A laptop computer, or simply laptop (also notebook computer or notebook), is a small mobile computer, which usually weighs 2-18 pounds (1-6 kilograms), depending on size, materials, and other factors.A laptop computer is much smaller than a desktop. Laptops usually run on a single main battery or from an external AC/DC adapter which can charge the battery while also supplying power to the computer itself. Many computers also have a 3 volt cell to run the clock and other processes in the event of a power failure.
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Noun
1. a portable computer small enough to use in your lap
(synonym) laptop
(hypernym) portable computer

<computer> (Commonly just "laptop") A portable personal computer of a size suitable to rest comfortably on one's legs. A laptop is smaller than a "luggable" (portable, but not comfortably) but bigger than a "palmtop" (easily carried in one hand or a shirt pocket).
Toshiba were one of the first companies to produce laptops, in about 1989.
[First example? Date? Difference from "notebook"?]
(1994-12-21)