sometimes stylized as chromeOS and formerly styled as Chrome OS, is a Linux-based operating system designed by Google. It is derived from the open-source ChromiumOS and uses the Google Chrome web browser as its principal user interface.
Google announced the project in July 2009, initially describing it as an operating system where applications and user data would reside in the cloud. ChromeOS was used primarily to run web applications.
All ChromiumOS and ChromeOS versions support progressive web applications (such as Google Docs or Microsoft Office 365), as well as web browser extensions (which can resemble native applications). ChromeOS (but not ChromiumOS) from 2016 onwards can also run Android applications from the Play Store. Since 2018, ChromiumOS/ChromeOS version 69 onwards also support Linux applications, which are executed in a lightweight virtual machinewith a Debian Linux environment.
The operating system is now usually evaluated in conjunction with the hardware that runs it.