Google Chrome Os

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  • Topic: Google Chrome OS, Google, Google Chrome
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  • Published : May 6, 2013
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GOOGLE CHROME OS

By – Harsh Trivedi

INTRODUCTION
Google Chrome OS is a Linux-based operating system designed by Google to work exclusively with web applications. Google announced the operating system on July 7, 2009 and made it an open source project, called Chromium OS, in November 2009.

Unlike Chromium OS, which can be compiled from the downloaded source code, Chrome OS only ships on specific hardware from Google's manufacturing partners. The user interface takes a minimalist approach, resembling that of the Google Chrome web browser. Since Google Chrome OS is aimed at users who spend most of their computer time on the Web, the only application on the device is a browser incorporating a media player and a file manager.

WHAT IS WEB OS?
Web operating system and webOS are matacomputing terms that refer to network services for Internet scale distributed computing, as in the Web OS at UC Berkely, and the WOS Project. In both cases, the scale of the "web operating system" extends across the Internet, like the web. In simple word Web OS can be conidered as "the emergent Internet operating system" as an open collection of web services. Examples of Web OS are WebTop, Bolin OS, Palm WebOS, Croneli WebOS.

HISTORY OF CHROME OS
Google announced Chrome OS on July 7, 2009, conceiving it as an operating system in which both applications and user data reside in the cloud. On November 19, 2009, Google released Chrome OS's spurce code as the Chromium OS project. Google Chrome OS code is only supported by Google and its partners and only runs on hardware designed for the purpose. Unlike Chromium OS, Chrome OS is automatically updated to the latest version. Laptops running Chrome OS are known collectively as "Chromebooks". The first was the Cr-48, a reference hardware design that Google gave to testers and reviewers beginning in December 2010. Retail machines followed in May 2011, including a desktop design known as a Chromebox.

USER INTERFACE
It included using minimal screen space by combining applications and standard Web pages into a single tab strip, rather than separating the two. Reduced window management scheme that would operate only in full-screen mode. Secondary tasks would be handled with "panels": floating windows that dock to the bottom of the screen for tasks like chat and music players. Split screens were also under consideration for viewing two pieces of content side-by-side. Google Chrome OS would follow the Chrome browser's practice of leveraging HTML5's offline modes, background processing, and notifications. Designers proposed using search and pinned tabs as a way to quickly locate and access applications.

USER INTERFACE

SWITCHING BETWEEN PANELS

ARCHITECTURE
In preliminary design documents for the Chromium OS open source project, Google described a three-tier architecture: firmware, browser and window manager, and system-level software and userland services. – 1-The firmware contributes to fast boot time by not probing for hardware. The firmware also contributes to security by verifying each step in the boot process and incorporating system recovery. 2-System-level software includes the Linux kernal that has been patched to improve boot performance. Userland software has been trimmed to essentials, with management by Upstart, which can launch services in parallel, re-spawn crashed jobs, and defer services in the interest of faster booting. 3-The window manager handles user interaction with multiple client windows much like other X window manager.

FASTER OS ?? HOW ??

HARDWARE SUPPORT


Google Chrome OS is initially intended for secondary devices like netbooks, not as a user's primary PC, and will run on hardware incorporating an x86 or ARM-based processor. Chrome OS consumes one-sixtieth as much drive space as Windows 7.





It is focused on the lower capacity requirements inherent in an operating system that accesses applications and most user data on remote...
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