Google’s Netbook OS is called Chrome OS. In 2009, Google announced the Chrome OS in which both data and applications will reside on the cloud. The OS is based on the Linux Kernel and uses Chrome Browser as it’s principal user interface. Devices using Chrome OS are called Chromebooks which was initially released in 2011.
Chrome OS is mainly targeted towards netbooks. However, Google does not use Chrome OS in tablets. In fact it uses Android OS for both tablets and mobile phones.
Chrome OS is available for developers but people will need to have Linux OS installed in their computers.
The OS is basically designed for computers whose main purpose is to connect to the internet. That means Chrome OS can only be used for web browsing, online video watching or document editing.
This differs greatly from the traditional OS like Windows or Mac. An user cannot install MS Office or other software into the Chrome OS. Rather than downloading on the computer an user can store it in the internet as Chrome Extensions.
The Chrome OS supports Chrome Apps. In the recent times Chrome OS started supporting Android Apps.