Web desktop

A web desktop or webtop is a desktop environment embedded in a web browser or similar client application. A webtop integrates web applications, web services, client–server applications, application servers, and applications on the local client into a desktop environment using the desktop metaphor. Web desktops provide an environment similar to that of Windows, Mac, or a graphical user interface on Unix and Linux systems. It is a virtual desktop running in a web browser. In a webtop the applications, data, files, configuration, settings, and access privileges reside remotely over the network. Much of the computing takes place remotely. The browser is primarily used for display and input purposes. In popular use, web desktops are sometimes referred to incorrectly as a web operating system or simply a Web OS.

## Contents

* 1 History of web desktops
* 2 Comparison of web desktops
* 2.1 A list of active web desktops
* 2.2 A list of inactive web desktops
* 3 See also for more information
* 4 Notes for this article
* 5 References

## History of web desktops

In the context of a web desktop, the term Webtop was first introduced by the Santa Cruz Operation (SCO) in 1994 for a web-based interface to their Unix operating system. This application was based on the provisional application entitled "The Adaptive Internet Protocol System" filed Nov. 13, 1997, serial number 60/065,521 and is the U.S. patent for the technology used in the Tarantella Webtop.[1] Andy Bovingdon[2] and Ronald Joe Record, who both explored the concepts in different directions, are often credited as the inventors.[3] The initial SCO Webtop, developed by Record, utilized a Netscape Navigator plugin to display applications in a browser window via TightVNC. A trademark application for "SCO Webtop" was filed with the U.S. Patent and Trademark Office on November 8, 1996. In order to avoid confusion with the more complex technology incorporated into the Tarantella Webtop it was abandoned on December 24, 1997 by The Santa Cruz Operation.[4]

Bovingdon's three tiered architecture (TTA) concept was launched as the Tarantella Webtop. This technology originated from early commercial use of web server technology by SCO. the first OS vendor to include a commercial web server, NCSA HTTPd, and commercial web browser, NCSA Mosaic. Their X.desktop product line, obtained when they acquired IXI Limited in the UK, was the first to have icons for URLs (controlled via the Deskshell scripting language) and an HTML-based help system, called DeskHelp, which extended the NCSA Mosaic web browser to include APIs and scripting linked to the X.desktop product for interactive control. The IXI Limited scripting language based on Python was later replaced with JavaScript. Tarantella allowed real UNIX and Windows applications to be displayed within a web browser through the use of Java to form a true web based desktop or Webtop.

The first SCO Webtop releases were part of SCO Skunkware[5] before being integrated into SCO OpenServer version 5 and UnixWare 7. Tarantella was subsequently purchased by Sun Microsystems and integrated into their Sun Secure Global Desktop.[6]

Byte magazine referred to the Webtop as a NUI (Network User Interface).[7]

More recently, Google released a cloud operating system for web connection called Chrome OS and several 11-12" netbooks from Acer and Samsung have implemented the system into their products.

## Comparison of web desktops

The following two tables compare general and technical information for a number of active and inactive web desktops.

### A list of active web desktops

Name  | Browser support  | Developer/s  | Web Engine  | Free (gratis)  | License  | Third party applications  | Productivity Suite  | Graphical user interface (GUI)  | Downloadable to a Web server

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WebDesktop.biz  | Chrome, Chromium, Firefox, IceWeasel, Safari, Edge, IE, Opera  | Lloyd Hardy Enterprises  | HTML5, Javascript, PHP7, CSS3, XML | No  | Free Software: AGPL v3  | Yes  | Yes  | Windows-like  | Yes
OnlineStor  | Almost any HTML5-based web browser  | OnlineStor team  | HTML5, JavaScript, AJAX, PHP | Yes  | Creative Commons  | From OnlineStor Community  | Zoho Docs, Office Viewer, oOffice  | FlatSky  | No
WebTop  | IE8, 9, 10, Edge, Firefox, Safari, Opera, Chrome  | Inovamatic  | JavaScript \+ PHP \+ WebSocket \+ AJAX | No  | Proprietary  | Yes  | Yes  | Customizable  | Unknown
Orbios  | IE8, 9, 10, Edge, Firefox, Safari, Opera, Chrome  | Orbios Ltd.  | JavaScript \+ PHP | Yes  | Proprietary  | No  | Orbios Spreadsheet  | Customizable  | No
Ancyradesktop  | IE 8/9, Firefox v12.0+, Chrome, Safari, Microsoft Edge  | Bayersoft, Inc  | HTML5, JavaScript, AJAX + C#  | Yes  | Proprietary | Yes  | Yes  | Windows-like  | Yes
AstraNOS  | IE8, 9, 10, Edge, Firefox, Safari, Opera, Chrome  | AstraNOS  | JavaScript \+ PHP \+ WebSocket \+ WebRTC \+ AJAX | Yes  | Proprietary  | Yes  | Yes  | Customizable  | No
eyeOS | Chrome, IE, Firefox, Safari, Opera  | AstraNOS team (later bought by Telefónica)  | PHP, Node.js \+ AJAX | No  | Proprietary  | Yes  | Yes  | Windows-like  | Only below version 2.5
ZeroPC | IE 8/9, Firefox v12.0+, Chrome, Safari  | ZeroDesktop, Inc.  | HTML / HTML5, JavaScript, Java Applet, AJAX  | Yes  | Proprietary  | No  | Thinkfree Office, Cloud Storage Mashup, IM  | Windows-like  | No
OS.js | IE10+, Edge, Firefox, Safari, Opera, Chrome  | OS.js  | JavaScript, Node.js or PHP (alternative)  | Yes  | Open Source: Simplified BSD License | Yes  | Yes  | Customizable / GNOME-Like  | Yes
AaronOS | Chrome, Firefox, Safari, etc  | Aaron Adams | HTML5, CSS3, JavaScript, PHP  | Yes  | Open Source  | Yes  | In development  | Customizable  | No
System | Edge, Safari,

Chrome (recommended)

| System  | HTML5,

Javascript,

CSS3,

simple.js (like JQuery)

| Yes  | None  | Yes  | No  | Windows 10-like  | No
ULAPPH Cloud Desktop | Opera, Chrome, Firefox  | ULAPPH Opensource | Golang, JavaScript, HTML5, CSS, Google App Engine, Firebase | Yes  | Open Source  | Yes  | Yes  | Windows/Mac-like  | No

### A list of inactive web desktops

Name  | Browser support  | Developer  | Web Engine  | Free (gratis)  | License  | 3rd party applications  | Productivity Suite  | Graphical user interface (GUI)  | Downloadable to Web server

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G.ho.st  | IE6+, Firefox ver. 2+, Safari. Partial: Chrome & Opera  | Ghost Inc ("G.ho.st")  | Flash \+ AJAX (mobile version is WAP)  | No  | Proprietary  | Yes  | Yahoo! Zimbra, Zoho, Google Docs, ILoveIM  | Windows-like  | No
Glide OS  | IE7, Firefox 3, Safari, Chrome  | TransMedia  | HTML5 | Yes (30 GB limit)  | Proprietary  | From Glide Community  | Glide Write, Glide Presenter, Glide Crunch, Photo Editor, Email  | Mac+Windows-like  | No
Nivio | IE7, IE8, Google Chrome, FF 4  | Sachin Dev Duggal, Saurabh Dhoot  | In development  | No  | Proprietary  | Yes  | Yes  | Windows | No
Online OS | FF 1.5 and higher, IE7  | iCUBE Network Solutions  | Java, Ajax | Yes  | Proprietary  | Yes  | Yes  | Windows-like  | No
xOS Webtop | FF 5.0+, Chrome 12+, Safari  | XProduct  | HTML5, PHP, JavaScript | Yes  | Open Source: GPLv3 | Yes  | Yes  | Mac-like  | No
Symbiose  | Firefox, Chrome, Safari, Opera, IE10+  | Symbiose  | HTML5, PHP, JavaScript | Yes  | Open Source: MIT license  | Yes  | Yes  | Customizable (default: Elementary OS, available: GNOME Shell, GNOME Panel, Windows 7-like, CLI)  | Yes

## See also for more information

* Comparison of remote desktop software
* Hosted desktop

* Online office suite
* Rich Internet application

* Virtual Network Computing

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## Notes for this article

1. ↑ US patent 6,104,392, Shaw , et al., "Method of displaying an application on a variety of client devices in a client/server network", issued 2000-08-15
2. ↑ Andrew J Bovingdon presented a Human Computer Interaction poster on the subject of Webtops at WWW2 in Chicago, 1994 entitled "Adding a new dimension to the desktop", https://web.archive.org/web/20041231084638/http://archive.ncsa.uiuc.edu/SDG/IT94/Agenda/Posters-received.html
3. ↑ The Santa Cruz Operation Technical White Paper, Tarantella --The Universal Application Server, July, 1997
4. ↑ See uspto.gov, click on "Trademarks -> Search TM Database", and perform a Basic search for "Webtop". The only earlier occurrences in both the Patent and Trademark databases are for systems unrelated to a web desktop context.
5. ↑ SCO Skunkware Release Notes
6. ↑ "Sun Microsystems Completes Tarantella Acquisition". Associated Press. 2005-07-13. http://www.sun.com/smi/Press/sunflash/2005-07/sunflash.20050713.1.xml. Retrieved 2008-04-04.
7. ↑ [1]

## References

* SCO Tarantella Offers New Twist On an Old Thin-Client Dance, "Network Computing Magazine", Mark Andrew Seltzer, January 24, 2000
* Ditch That Desktop for a Webtop, PC World, October 16, 2000
* SCO Company History, Operating System Documentation Project
* SCO revamps UnixWare with Linux features, CNET News.com, February 23, 1999
* SCO Showcases Latest In Network Computing for Real-World Environments, Network Computing News, April 29, 1997
* An American cloud computing startup Revolutionizes the Web, Kinja, May 17, 2015

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