Tim Berners-Lees vision Source: http://info.cern.ch 1992
10
Slide 12
The Mosaic War 1992-1993 11
Slide 13
Browser War I 1995-2001 12
Slide 14
Browser War II 2006-201X 13
Slide 15
Browsers we are using Source: NetMarketShare, June, 2011
14
Slide 16
Browsers and tablets Source: NetMarketShare, May, 2011 15
Slide 17
Browsers and mobile phone Source: NetMarketShare, June, 2011
16
Slide 18
Key innovation drivers Adapted from Peter Wayner, Battle of the
Web browsers, April 27, 2011 Web 2.0 HTML5 standards JavaScript
engine speeds Video & Audio Privacy & Security New Features
WebGL & WebCL Plug-ins & Extensions Developer Tools 17
Slide 19
So how does a browser work? 18
Slide 20
Browser as ecosystem User Interface User Interface JavaScript
Engine JavaScript Engine Display Backend Display Backend Data
Persistence Data Persistence Browser Engine Browser Engine Layout
Engine Layout Engine Other Engines Other Engines Network Adapted
from Tali Garsiel, How browsers work
http://taligarsiel.com/Projects/howbrowserswork1.htm, 19
Slide 21
How a layout engine works Parse HTML DOM Content Tree Render
Tree Parse CSS Parse CSS Styling Tree Styling Tree Paint Adapted
from Tali Garsiel, How browsers work
http://taligarsiel.com/Projects/howbrowserswork1.htm, Network
JavaScript Engine JavaScript Engine Display Backend Display Backend
20
Slide 22
Test Results 21
Slide 23
Test Results Source: http://html5test.com/ 450 22
Slide 24
Total Score = 327 Source: http://html5test.com/ 23
Slide 25
Total Score = 327 Source: http://html5test.com/ 24
Slide 26
Total Score = 286 Source: http://html5test.com/ 25
Slide 27
Total Score = 286 Source: http://html5test.com/ 26
Slide 28
Total Score = 253 Source: http://html5test.com/ 27
Slide 29
Total Score = 141 Source: http://html5test.com/ 28
Slide 30
HTML5 test results Takeaways The latest versions are increasing
their support of HTML5 The scores do not indicate that Chrome,
Firefox, Safari, and Opera are twice as good as Internet Explorer
29
Slide 31
How a JavaScript engine works Interpret Code Interpret Code
Parse Script Run-time Objects Run-time Objects Layout Engine Layout
Engine Adapted from Tali Garsiel, How browsers work
http://taligarsiel.com/Projects/howbrowserswork1.htm, 30
Slide 32
SunSpider Tests Scores in milliseconds, lower is better 31
March 2011
Slide 33
JavaScript test results takeaways Benchmarks include
computationally heavy tasks which may not reflect real-world
performance. JavaScript performance outside of a browser is
drastically faster than inside of a browser. An improperly coded
JavaScript performance test could be affected by a change to the
browsers layout engine. 32
Slide 34
The brands inside BrowserLayout EngineJavaScript Engine
Internet Explorer 9TridentJScript Firefox 5GeckoTraceMonkey Chrome
12WebkitV8 Safari 5WebkitNitro Opera 11PrestoCarakan 33
Slide 35
5 Predictions 34
Slide 36
Prediction #1: Chrome will win Browser War II 35
Slide 37
Prediction 2#: Multi-engine browsers will not take off 36
Slide 38
Prediction #3: Custom-built browsers will take off 37
Slide 39
Prediction #4: Web apps will have built in browsers 38
