1) Laptop also called notebook,is a thin, lightweight mobile computer with a screen in its lid and a keyboard in its base
2) A tablet is a thin, lighter-weight mobile computer
that has a touch screen
3) A stick computer is a small computer which usually is
the same size as, or a little larger than, a USB flash drive
4) A desktop, or desktop computer, is a personal computer designed to be in a stationary location, where all of its components fit on or under a desk or table