ChromeOS

Chrome OS is an operating system developed by Google. It is based on Gentoo, itself being based on Fedora. It is designed to be a fast and lightweight operating system that is based on the Google Chrome browser. It uses the Linux kernel. Chrome OS runs mainly on web applications, although it does support native applications as well.

Availability
Chrome OS is mainly found on Chromebooks, laptops that run Chrome OS. They are also shipped on Chromeboxes, Chromebases and Chromebits. The open-source equivalent of Chrome OS, known as Chromium OS, can be compiled to run on computers other than the ones with Chrome OS pre-installed.

Channels
Chrome OS has four release channels: Stable, Beta, Dev, and Canary.

Stable
The Stable channel releases fully tested builds to ensure minimal bugs. It gets minor updates every two to three weeks and major updates every six weeks. It is currently at version 93.

Beta
The Beta channel releases less tested builds that are more prone to bugs. It gets minor updates every week and major updates every six weeks. It is currently at version 94.

Dev
The Dev channel releases buggy least tested builds. It gets updated once or twice a week. It is currently at version 95.

Canary
The Canary channel releases untested builds (it is bleeding-edge). It gets updated daily. It is currently at version 95 for specific devices.