Chrome OS is an open source operating system for people who spend most of their time on the web. It is built around the core tenets of speed, simplicity and security.
What are Chromebooks?
A Chromebook is a mobile device designed specifically for people who live on the web. With a comfortable full-sized keyboard, large display and clickable trackpad, all-day battery life, light weight, and built-in ability to connect to WiFi and 3G networks, Chromebooks are ideal for anytime, anywhere access to the web. They provide a faster, safer, more secure online experience for people who live on the web, without all the time-consuming, often confusing, high level of maintenance required by typical computers.