A tablet computer, commonly just called a tablet, is a portable computer housed within the casing of a handheld touchscreen display. They appear like a larger version of the modern smartphone. Unlike laptops, tablet computers lack a built-in keyboard. Should not be confused with a 2-in-1 laptop, which is a laptop that features a touchscreen with the ability to flip or rotate so the display can conceal the laptop keyboard. A popular example of a tablet computer is the iPad.