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Thread: Browser Engines Technologies

  1. #1
    HappyAndyK's Avatar
    HappyAndyK is offline Site Administrator
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    Jun 2008

    Thumbs up Browser Engines Technologies

    For the better part of the last 10 years, browsing the Internet for most meant using Internet Explorer. However, the recent release of Google Chrome as well as the continued popularity of Firefox, Safari and Opera have given users unprecedented choice in what software to use. But, most users don't know much about the engines and technology that actually powers their particular web browser.

    Without an engine, all you'd see when you visited, or any other website, would be the raw HTML, CSS, and javascript that our developers use to create the site. Sure, you'd also be able to find the content hidden deep within all those tags and instructions, but not in a pleasing format and without any multimedia enhancements. The browser's engine is what takes all of that code and renders the information for you, on the fly.

    Today, most of the Internet is rendered by four main browser engines. Trident, Gecko, WebKit and Presto. Neowin takes you under the hood and gives you an unbiased (but brief) overview of these engines, where they came from and who's using them.

    Popular Browsers & Applications: Internet Explorer, Avant Browser, Maxathon, Microsoft Outlook, Outlook Express, AOL Browser
    License: Closed-Source
    Acid2 Compatible: Yes (in version VI included in Internet Explorer 8)
    Acid3 Compatible: No
    Operating Systems: Windows
    Major Contributors: Microsoft
    Share: Prior to 2004, 95% of browsers on the Internet, now approx 70%.
    First Released: April 1997

    First released with Internet Explorer 4.0 and still in use today, Trident was designed as a software component to allow software developers to easily (and freely) add web browsing functionality to their own Windows applications. The overwhelming majority of third party developers that integrate web browsing into their software use the Trident engine (mshtml.dll) such as Avant Browser and Maxathon as well as programs such as AOL Instant Messenger, Google Talk, Valve Steam, Pandion and many others.

    However, a few notable Microsoft products no longer use Trident as their rendering engine, which may be an indication Microsoft is developing a replacement for the now 11 year old engine. Expression Web uses its own engine which Microsoft claims is the most standards-compliant on the market today. Internet Explorer Mobile also does not use Trident, but a engine custom developed for the Windows Mobile platform.

    Internet Explorer 5 for Mac did not use the Trident engine, but a custom engine known as Tasman, although previous versions of Internet Explorer for Mac did use Trident. Development of Internet Explorer for Mac was halted in roughly 2003, but development of Tasman continued to a limited extent, and was later included in Office 2004 for Mac in their Entourage product.

    It had been rumored that Tasman would replace Trident in Internet Explorer 7, but as of the Internet Explorer 8 beta, Trident is still Microsoft's engine of choice.

    Popular Browsers & Applications: Firefox, Camino, Flock, Thunderbird, Seamonkey, Epiphany, NVU, Netscape, K-Meleon
    License: Open-Source
    Acid2 Compatible: Yes
    Acid3 Compatible: No
    Operating Systems: Windows, Mac OS X, Linux/BSD
    Major Contributors: Mozilla Corporation, Netscape (originally)
    Share: Approx 20%
    First Released: December 1998

    Development of the Gecko layout engine began at Netscape in 1997. The original Netscape rendering engine was considered to be slow and not compliant with W3C standards, compared to the one used in Microsoft Internet Explorer at the time. Ironically, today these are two complaints now typically directed at the Trident engine used by Internet Explorer. First called Raptor, this name was changed to NGLayout due to trademark issues. Netscape later changed the name to Gecko. In July 2003, AOL (which had purchased Netscape in 1998) spun off development of the Gecko engine to the Mozilla Foundation.

    Because Gecko (and the popular Firefox browser that drives it's development) are open source, other companies use it to develop their own browsers and applications. Gecko is now seen by some developers as a superior alternative to the Trident engine because it is cross platform and also lacks many of the security vurnalibilties of the more popular Trident engine.

    Popular Browsers & Applications: Safari, Chrome, Adobe AIR, iCab, Epiphany (experimental), Konqueror (KHTML)
    License: Open-Source
    Acid2 Compatible: Yes
    Acid3 Compatible: Yes
    Operating Systems: Windows, Mac OS X, Linux/BSD
    Major Contributors: WebKit Foundation, Apple, Nokia, Adobe, Google, KDE Team (originally)
    Share: Approx 7%
    First Released: January 2003 (forked from KHTML, which was first released in October 2000)

    The first applications based on KHTML were released in October 2000 by the KDE team, around their Konqueror file and web browser. WebKit was forked from the Konqueror browser’s KHTML library, by Apple, Inc., for use as the engine of Safari web browser.

    Google's recently released Chrome browser, along with the upcoming Android mobile phone platform, also use WebKit as their browser engine. WebKit is used on the iPhone and iPod touch to render content within the device’s web browser and email software. Adobe also uses the WebKit engine to render HTML & javascript inside of Adobe AIR applications. The team behind the browser Epiphany announced in April 2008 that it will use WebKit exclusively, and stop using the Gecko layout engine. Epiphany is a web browser for the GNOME desktop used by Linux.

    Popular Browsers & Applications: Opera Desktop/Mobile/Mini, Nintendo DS, Wii Internet Channel, Macromedia Dreamweaver MX and above, Adobe CS 2 and above
    License: Closed-Source
    Acid2 Compatible: Yes
    Acid3 Compatible: Yes
    Operating Systems: Windows, Mac OS X, Linux/BSD
    Major Contributors: Opera Software
    Share: Less than 2%
    First Released: November 2002

    Presto is the code name for the engine for the Opera web browser developed by Opera Software replacing the Elektra engine used in versions 4–6 of the browser. Unlike Trident, Gecko and WebKit... Preseto is available only as a part of Opera browser or related products. Neither the source or binary forms of the engine are freely available for integration into third party products.

    Adobe has licensed Opera technology for use in the Adobe Creative Suite applications, however, given Adobe's recent promotion of WebKit inside of AIR, their use of Presto technology in CS should be short lived.

  2. #2
    iMav's Avatar
    iMav is offline Gold Member
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    Jul 2008


    informatvie article.

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