Gazelle was a research

web browser A web browser is application software for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's screen. Browsers are used o ...

project by Microsoft Research, first announced in early 2009."The Multi-Principal OS Construction of the Gazelle Web Browser"
( Microsoft Research whitepaper, PDF) The central notion of the project was to apply

operating system An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also i ...

(OS) principles to browser construction."Gazelle: Applying Operating System Concepts to the Browser"

OSNews OSNews is a computing online newspaper. It originally focused on operating systems and their related technologies that launched in 1997, but is now aggregating consumer electronics news. The content is managed by a group of editors and the owner ...

July 7, 2009 In particular, the browser had a secure kernel, modeled after an OS kernel, and various web sources run as separate "principals" above that, similar to

user space A modern computer operating system usually segregates virtual memory into user space and kernel space. Primarily, this separation serves to provide memory protection and hardware protection from malicious or errant software behaviour. Kernel ...

processes in an OS. The goal of doing this was to prevent bad code from one web source to affect the rendering or processing of code from other web sources. Browser plugins are also managed as principals. ''Gazelle'' had a predecessor project, ''MashupOS'', but with ''Gazelle'' the emphasis was on a more secure browser. By the July 2009 announcement of

ChromeOS ChromeOS, 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 interfa ...

, Gazelle was seen as a possible alternative Microsoft architectural approach compared to Google's direction."Microsoft's Gazelle browser takes a radical path"
CNet July 7, 2009"Google’s Chrome OS vs. Windows"

The Week ''The Week'' is a weekly news magazine with editions in the United Kingdom and United States. The British publication was founded in 1995 and the American edition in 2001. An Australian edition was published from 2008 to 2012. A children's ed ...

July 8, 2009"Google Chrome OS: is it copying Microsoft's Gazelle or is it more like Splashtop?"
''

The Guardian ''The Guardian'' is a British daily newspaper. It was founded in 1821 as ''The Manchester Guardian'', and changed its name in 1959. Along with its sister papers ''The Observer'' and ''The Guardian Weekly'', ''The Guardian'' is part of the Gu ...

'' July 8, 2009 That is, rather than the OS being reduced in role to that of a browser, the browser would be strengthened using OS principles. The ''Gazelle'' project became dormant, and ''ServiceOS'' arose as a replacement project also related to browser architectures.Resource Management for Web Applications in ServiceOS
/ref> But by 2015, the SecureOS project was also dormant, after Microsoft decided that its new flagship browser would be

Edge Edge or EDGE may refer to: Technology Computing * Edge computing, a network load-balancing system * Edge device, an entry point to a computer network * Adobe Edge, a graphical development application * Microsoft Edge, a web browser developed ...

References

{{DEFAULTSORT:Gazelle (Browser) Web browsers Microsoft Research