Laptop
alias ： Notebook computer
Laptop is a portable computer which can run for a short time on rechargeable batteries and with an LCD. Laptops usually run on a single battery or from an external AC/DC adapter which can charge the battery while also supplying power to the computer itself.
Laptops usually weigh less than 12 pounds.
Laptops are convenient on business trips, in classrooms, and in other situations where traditional personal computers may be less efficient. Laptops are capable of the same tasks as a desktop PC, although they are typically less powerful for the same price.