Internet:Web Browsers
From VirtualMVwiki
| Internet and Web < |
Introduction
A Web-browser is basically a HTML web page display program, and may be on many different platforms: Windows, Apple, Unix, and Mobile devices. In 2010 the most common is Microsoft's Internet Explorer.
|
ObjectivesBy the end of this page you will be able to:
|
Common Browser options (wars?)
- Don’t expect a page to look the same in every browser
- Cascading style sheets go some way to solving this .. But.. not all browsers support them
- Don’t expect a perfect solution
- Design for the one you expect the users to use (and your favourite hopefully), then modify to meet different browsers
- Browsers that should be considered (Usage stats Jan 2009)
Internet Explorer (68%), Firefox (22%), Safari (8%) and Chrome (1%). (Wikipedia, 2009)[1]
Microsoft Internet Explorer
- 2009: (March) Version 8
Firefox
- 2008: Version 3
- 2009: Version 3.5
Google Chrome
- 2008: (Dec 11) Version 1
- 2009: (Aug ) Version 2 (Not too sure what was changed!! - but it has become very compliant - see test below)
- Chrome Experiments (Google, 2009)[2]http://www.chromeexperiments.com/ . Naone (2009, March 18)[3] reported that
- Chrome Experiments showcases the applications that require significant data processing using multiple Web pages simultaneously
- Darrin Fisher, one of the engineering leads for Google Chrome, notes that all of the experiments use just HTML and JavaScript, and are designed to demonstrate what is possible with basic Web technology
Others
-
TheWorldBrowser[4]
- Based on IE engine (thanks Davood)
-
Epic Browser (n.d.)[5]
- Based on mozilla. (thanks Abdul), Web browser for India and has built in anti-virus detection
Testing web browsers
The ability of a Web Browsers to conform to current standards is based on Browser engines.
- Microsoft IE uses a proprietary engine (Trident),
- Firefox (Gecko) and,
- Google Chrome and Safari (WebKit)
A comparison of layout engines can be found on Wikipedia(2009) [6]
From The Web standards project: http://www.webstandards.org/action/acid3/
An interesting way to see how good your web browser ( it produces a rating out of 100%) is it to open http://acid3.acidtests.org/
The page "should" look like… http://acid3.acidtests.org/reference.html
- 2008: IE7 rated around 13% Firefox around 50%
- 2009: IE (8.0) 20%(Compatibility view=13%),Chrome (1.0.154) 78% (2.0.172.39) 100%, Firefox (3.06) 71% (3.5) 93%
For a slightly more extreme test Google engineers decided to show visually the speed of Chrome downloading a page against some physical events (like a potato cannon!!)
|
Making the Google Chrome Speed Tests
Brief history
1993 Mosaic
The first popular GUI browser was NCSA Mosaic, which was developed at the National Center for Supercomputing Architectures at the University of Illinois by Marc Andreessen, Eric Bina and a team of staff and students. When Mosaic was released onto the Internet in 1993 the WWW really took off since its friendly point and click interface was so easy to use. Mosaic gained 2 million users within a year.
1994 Navigator 1
Marc Andreessen left NCSA, and formed Mosaic Communications with Jim Clark of Silicon Graphics. They quickly renamed their company Netscape Communications. The first version of their browser, Netscape Navigator 1 was released in 1994, and was available free to private or educational users. Commercial users had to pay. Companies like IBM licensed it and distributed it under different names. The main advantage over Mosaic was multithreading, the facility to allow images to be transferred simultaneously. It also had the ability to display text and pictures before the complete document was transferred. This made it more useable on systems that have slow network connection to the Internet.
1995 Netscape Navigator 2.0
Netscape Navigator 2.0 was released in 1995. By June 1996 it had surpassed 38 Million users, (according to Netscape).
Netscape continued to release new versions of their Navigator browser, and each has been a huge success with millions of downloads. The majority of WWW users tended to switch over to the new version within months of it being released. However a significant minority of people tended to stick with whatever browser they first used and not update, so web pages must always be designed with users of older browsers in mind. For example these people may be less confident users who do not know how to download and install software, or they may have older computers which do not have enough memory to run the newer bigger software.
1995 Internet Explorer
Microsoft Introduced Internet Explorer in 1995. Surveys indicated that by Jan 1996 IE held about 2% of the Browser market! By September 1998 usage of IE overtook Netscape Navigator.
1994-2004 Opera
Another popular web browser that has appeared is Opera. Its small size (initially it would fit on a floppy disk) meant it gained a dedicated following.
- 1994 - Jon S. von Tetzchner and Geir Ivarsøy develops a Web browser while working for Norwegian telecom Telenor.
- 1996 - Opera browser 2.1 is launched on the Internet. Shareware version of Opera made available to the public for the Windows™ platform.
- Before the release of the free version of Opera 5.0 in December of 2000 (the browser was Ad sponsored), between 1 and 1.5 million people worldwide used Opera.
For a history and downloads check the opera web site.
- 2004: Opera 7. Small amount of advertising
Browsers and standards
As the WWW became popular designers began to complain about the inability of HTML to format and layout the information on a page. Consequently the browser manufacturers began to add new features to their products to improve the design of web pages. These features were browser-specific, meaning that the HTML tags could only be understood by one company’s browser. When Netscape was the only popular browser on the WWW this didn’t matter, but when Internet Explorer was launched with a different set of browser-specific tags, it became an issue.Around 1996 it was very common to see signs on websites reading "this site is best viewed with Netscape" or "this site requires Internet Explorer". Often website designers would create two versions of the same website! The features were also ahead of the HTML standards, meaning that the HTML tags were not part of the current protocol. The best of the new tags, for example tables or frames, both first introduced in Netscape 2, were eventually added to the HTML standards. For a while Netscape actually drove the standards along.
2004 (Nov) Mozilla Firefox 1.0 & Mozilla
Firefox is a free, open-source web browser for Windows, Linux and Mac OS X and is based on the Mozilla codebase.
What is Mozilla?
Mozilla is an open-source web browser and toolkit, designed for standards compliance, performance and portability. The Mozilla Foundation coordinates the development and testing of the Firefox browser by providing discussion forums, software engineering tools, releases and bug tracking
What’s the difference between Firefox and Mozilla?
Mozilla (Application Suite, also known as SeaMonkey) is a complete suite of web related applications, such as a browser, a mail/news client, a chat client and much more. Firefox is just a browser, which makes it a better choice if you already have a mail client for example. Also, since Firefox is smaller than the whole Mozilla suite, it’s faster and easier to use.
Ref: Mozilla (2005) Firefox FAQ. Retrieved February 22, 2005 from http://www.mozilla.org/support/firefox/faq
Browser wars
The battle between Netscape and Internet Explorer for the title of most popular browser was termed the web browser wars. For most of the early history of the WWW, Netscape was the most important browser. Around September 1998 Internet Explorer overtook Netscape as the most used browser. This was because millions of people were connecting to the Internet for the first time, and they had a free copy of Internet Explorer as part of their computer’s operating system, so why would they bother to download new software. However user studies show that older users of Netscape didn’t tend to change browser. Over time this has changed, with Internet Explorer holding the majority share of the browser usage.
Browser war IE and Netscape 1996-1999
The chart shows the rapid rise of IE.
2006 (Jul) Firefox gains vs I E
Jul 2004 Internet Explorer's first-ever drop in browser market share. At the time, IE usage had dropped from 94.8 percent at the beginning of 2004 to 93.9 percent a few months later. As Firefox approached the big 1.0 milestone, its market share continued to soar, and it passed the 10 percent barrier in October 2005.
Web analytics firm OneStat.com is now reporting that Firefox grabbed almost 13 percent market share worldwide, while IE dropped to just over 83 percent.(Bangeman, 2006)[7]
- Table: Global browser market shareBrowser share
- IE 83.5
- Firefox 12.93
- Safari 1.84
- Opera 1.0
- Netscape 0.16
2007 Browser Market Share
(Net Applications, 2007) [8]
2008 (Dec) Google Chrome released
Based on the WebKit engine (same as Apple's Safari) Google chrome introduced its own web browser. Each Browser Tab is separated spo if one tab "crashes" the others should remain unaffected.
2009 Browser Market Share
2010
Accessibility
A toolbar which will enhance accessibility of the World Wide Web has been developed by researchers at the University of Southampton. (Lewis, 2010)[9]. The JISC TechDis Toolbar provides a range of productivity and accessibility tools and aids to help users customise the way they view and interact with web pages. Features include a text to speech function, spell checking and dictionary facilities, and a feature for gathering referencing information within a web page. It also provides simple ways to adjust the magnification or font used on web pages.(JISC, n.d.)[10]
References
- ↑ Wikipedia (2009) Usage share of web browsers. Retrieved February 15, 2009 from http://en.wikipedia.org/wiki/Usage_share_of_web_browsers
- ↑ Google (2009)Chrome Experiments. Retrieved March 24, 2009 from http://www.chromeexperiments.com/
- ↑ Naone, E. (2009, March 18) Browser Coders Make Chrome Shine. Technology Review. Retrieved March 24, 2009 from http://www.technologyreview.com/web/22315/?a=f
- ↑ TheWorldBrowser. Retrieved July 25, 2010 from http://www.ioage.com/en/
- ↑ Epic Browser (n.d.). Retrieved July 15, 2010 from http://www.epicbrowser.com/
- ↑ Wikipedia:Comparison of layout engines(2009). Retrieved August 4, 2009 from http://en.wikipedia.org/wiki/Comparison_of_layout_engines
- ↑ Bangeman, E. (2006)Firefox continues gains at Internet Explorer's expense. Retrieved July 17, 2006 from http://arstechnica.com/news.ars/post/20060711-7234.html
- ↑ Net Applications (2007) Market share for browsers, operating systems and search engines. Retrieved July 20, 2007 from http://marketshare.hitslink.com/report.aspx?qprid=0&qptimeframe=M&qpsp=101
- ↑ Lewis, J. (2010) ECS - New toolbar to aid web accessibility. Retrieved January 21, 2010 from http://www.ecs.soton.ac.uk/about/news/2965#s-b-c
- ↑ JISC (n.d.) JISC TechDis Toolbar (Beta). Retrieved January 21, 2010 from http://www.techdis.ac.uk/gettoolbar
