Sometimes before I fall asleep I think of things and I really don't know why. This time I wondered why a laptop is called laptop and not kneetop or legtop or bellytop and who gave this name ? The next morning I wanted to find out ! No way ! I googled, I wikipediaed they all explained how a laptop works, its size, and that it is portable. All things I knew too.
In a dictionary I found following explanation :
a portable, usually battery-powered microcomputer small enough to rest on the user's lap.
While in Wikipedia and everywhere else the definition is :
A laptop computer is a portable personal computer light and small enough to sit on a person's lap. The main utility of a laptop computer is that it allows a person to travel with their computing resource.
At least now I know the difference ! In a dictionary a laptop rests in other definitions it sits !