Laptop (noun)

1. A portable computer that can easily be used on one's lap.
2. A small, lightweight computer that can be easily carried and used in a variety of locations.

Origin:

1970s: blend of lap "the upper surface of the thighs of a seated person" and notebook.

Examples:

1. The laptop was used for work and school.
2. The laptop was lightweight and portable.
3. The laptop had a built-in keyboard and touchpad.
4. The laptop had a long battery life.
5. The laptop was equipped with the latest technology.