This document defines and describes several types of computing devices. A laptop is a mobile personal computer with a display, keyboard, and long-lasting battery. A tablet is a touchscreen mobile device without a physical keyboard. A desktop has a tower or flat design intended for regular use in one location. A server runs services for other devices on a network. A smartphone has an operating system and connectivity beyond a basic cell phone. A video game console produces game displays for televisions. An embedded system controls functions within a larger system under real-time constraints.