Google Chrome OS is an open-source operating system developed by Google that is heavily based on cloud computing. It is designed to be lightweight and boot very quickly. Chrome OS relies on accessing web applications through the Chrome browser and storing all user data in the cloud. Major features include fast boot times of around 7 seconds, simple and secure interfaces modeled after the Chrome browser, automatic software updates, and the ability to access files and data from any Internet-connected device. Chrome OS is targeted at users who spend most of their time online and need basic computing functions that are cloud-based.