Tablet computers and smartphones use ________ operating systems.

Tablet Computers

Portable computing devices featuring a touch screen as the main input method, designed for ease of use and portability, bridging the gap between laptops and smartphones.

Smartphones

Handheld electronic devices that combine mobile telephone and computing functions, capable of running various applications.

Operating Systems

The software that manages all the hardware and software resources on a computer, providing a base for application programs and acting as an intermediary between the user and the computer hardware.