The document discusses several web browsers: Internet Explorer, which has the largest market share but began losing users in 2004; Firefox, which is open source and focuses on security; Chrome, which was released in 2008 and focuses on speed; Opera, which began in 1994 and was one of the first cross-platform browsers; Safari, which is developed by Apple and comes pre-installed on Macs; and several other lesser known browsers like Maxthon, Flock, Deepnet Explorer, Avant, Camino, SeaMonkey, and Netsurf. It provides brief histories and descriptions of each browser.

1. BROWSERS NATALIA ESPINOSA CABALLERO

2. INTERNET EXPLORER=compatibility As of 2005 Internet Explorer is by far the most widely-used web browser, although since 2004 it began losing usage share to other browsers. developed over 9 major software versions including 1.0 (1995), 2.0 (1995) 3.0 (1996), 4.0 (1997), 5.0 (1999), 6.0 (2001), 7.0 (2006), 8.0 (2009), and 9.0, which began public beta testing in September 2010.

4. MOZILLA FIREFOX= security Mozilla Firefox is a free and open source web browser descended from the Mozilla Application Suite and managed by Mozilla Corporation. Versions:Firefox 1.0 Firefox 1.5 Version 2.0 and Firefox 3.0 Version 3.5 Version 3.6 Version 4.0

6. GOOGLE CHROME= speed It was first released as a beta version for Microsoft Windows on 2 September 2008, and the public stable release was on 11 December 2008. As of January 2011, Chrome was the third most widely used browser, and passed the 10% worldwide usage share of web browsers

8. OPERA= speed Opera began in 1994 as a research project at Telenor, the largest Norwegian telecommunications company. Opera was first released publicly with version 2.0 in 1996… Opera to mobile device platforms was started in 1998.Opera 4.0, released in 2000, included a new cross-platform core that facilitated creation of editions of Opera for multiple operating systems and platforms. On December 16, 2010, Opera 11 was released

10. SAFARI= attractive Is a graphical web browser developed by Apple and included as part of the Mac OS X operating system. First released as a public beta on January 7, 2003 on the company's Mac OS X operating system, it became Apple's default browser beginning with Mac OS X v10.3 "Panther". As of 2011, Safari is the fourth most widely used browser in the US, following Internet Explorer, Mozilla Firefox, and Google Chrome, respectively.

12. Browsers SPEED

13. Browsers SECURITY

14. MAXTHON is a web browser for Microsoft Windows. The latest release, Maxthon 3, supports both the Trident and the WebKit rendering engines. Maxthon has developed a growing user base since its initial release in 2003, especially in China, so that in 2006, Maxthon 2.0 gained support of several sponsors. Speed= normal Security= normal

16. FLOCK Is a web browser that specializes in providing social networking and Web 2.0 facilities built into its user interface. Earlier versions of Flock used the Gecko HTML rendering engine by Mozilla. Version 2.6.2, released in July 2010, was the last version based on Mozilla. Starting with version 3, Flock is based on Chromium and so uses the WebKit rendering engine. Speed= normal Security= normal

18. DEEPNET Is a web browser created by Deepnet Security for the Microsoft Windows platform. The most recent version is 1.5.3 (BETA 3) which was Released October 19, 2006. Developed in Britain, Deepnet Explorer gained early recognition both for its use of anti-phishing tools and the inclusion of a peer-to-peer facility for file sharing, based on the Gnutella network. The anti-phishing feature, in combination with other additions, led the developers to claim thatit had a higher level of security than either Firefox or Internet Explorer—however, as the underlying rendering engine was still the same as that employed in Internet Explorer, it was suggested that the improved security would fail to address the vulnerabilities found in the rendering engine.

20. AVANT Is a freeware web browser from a Chinese programmer named Anderson Che, which unites the Trident layout engine built into Windows (see Internet Explorer shell) with an interface intended to be more feature-rich, flexible and ergonomic than Microsoft's Internet Explorer (IE). It runs on Windows 98 and above, including Windows Vista. Internet Explorer version 6, 7 or 8 must be installed. As of November 2008, total downloads surpassed 22.5 million.

22. CAMINO Is a free, open source, GUI-based Web browser based on Mozilla's Gecko layout engine and specifically designed for the Mac OS X operating system. In place of an XUL-based user interface used by most Mozilla-based applications, Camino uses Mac-native Cocoa APIs. Speed= normal Security= normal

24. SEAMONKEY Is a free and open source cross-platform Internet suite. It is the continuation of the former Mozilla Application Suite, based on the same source code. Application Suite, which until its last released version (1.7.13) was governed by the Mozilla Foundation. TheThe development of SeaMonkey is community-driven, in contrast to the Mozilla new project-leading group is the SeaMonkey Council. Speed: normal Security: normal

26. NETSURF= speed Is an open source web browser which runs on a variety of platforms including RISC OS, AmigaOS and Unix-like systems. NetSurf has features that include tabbed browsing, text selection and PDF export. Running on other platforms is also possible by building from source, with the developers intending to add further binaries when time can be found to do so. Security: normal