A mobile hinged computer with an integrated keyboard that uses a full operating system is called a

• A. Tablet
• B. Netbook
• C. Laptop
• D. Smartphone

Answer: (C)

The main idea is a portable computer arranged in a clamshell design: a screen that folds over a built-in keyboard, connected by a hinge, and capable of running a full operating system. That description fits a laptop, which is designed for mobile use with the keyboard and display integrated into one unit and a complete OS running on it.

A tablet is typically touch-first and often uses a touchscreen with an optional or detachable keyboard rather than a built-in one in a hinged form. A smartphone is small and pocket-sized, running a mobile OS rather than a full desktop-type OS. Netbooks are smaller, lighter cousins of laptops, but the common term for this hinged, keyboard-included, full-OS device is laptop.