A web browser is a software application used to access information on the World Wide Web. The first browser was created in 1991 by Tim Berners-Lee and was called WorldWideWeb. Popular modern browsers include Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Internet Explorer, and Opera. Each browser has its own features, interface, and engine for rendering web pages. Security and privacy are important considerations when choosing a browser.

2. What is a web browser and what
it does?
 A tool for retrieving information from the
Internet
 View documents and resources
 Access information from servers, private
networks, etc.

3. The beginning

4. History
 The first one – “WorldWideWeb” by Tim
Berners-Lee in 1991
 One of the first graphical browsers – NCSA
Mosaic, in 1993
 First browser war between Internet Explorer
and Netscape starts in 1995
 Opera debut in 1996

5. History
Apple’s Safari launches in January 2003
Firefox 1.0 is released in the late 2004
The most significant entrant – Google Chrome,
September 2008

6. Features
 Support for variety of file formats and
protocols
 Pop-up blockers
 Bookmarks
 Web feeds
 Plugins

7. Interface
 Back and forward buttons
 Refresh button
 Stop button
 Home button
 Address bar
 Search bar
 Status bar

9. Engine
 “Translates” marked up content (HTML, XML,
image files, etc.) into formatted content
 Handles links, cookies, scripting, plugins-
loading
 Embedded in e-mail clients, online help
systems and other applications as well
 A standard part of a browser nowadays

10. Popular engines
 Gecko – the open-source web browser engine
used by Firefox
 Internet Explorer’s Trident
 Opera’s Presto engine
 WebKit – the rendering engine for Safari and
Google Chrome

11. Web browser security
 Main sources of threats – Cookies, Active-X,
Java and JavaScript malicious scripts
 Encryption of information can ensure safety
 Getting the latest updates
 Anti-spyware programs

12. Microsoft Internet ExplorerMicrosoft Internet Explorer

13. first appeared:first appeared: August 16, 1995August 16, 1995
market share today:market share today: 50%50%
Today's most widely used browser. It is because users
- find it included with Windows, which is used by 90%
of Internet users
- are unaware of having a choice
- are reluctant of changing their habits
- think it makes no difference

14. ProsPros
Requires no installationRequires no installation
Built into Windows since 98
Easy to useEasy to use
No difficult settings
Compatible with other Microsoft productsCompatible with other Microsoft products
Office and so on
Many people use itMany people use it
Tautological: many people use it because
there are many people using it

15. ConsCons
Slow to introduce featuresSlow to introduce features
Netcaptor had tabs in 1997, Internet Explorer 7 called itNetcaptor had tabs in 1997, Internet Explorer 7 called it
innovation in 2006innovation in 2006
Hates standardsHates standards
It's near impossible to write your page so even the newestIt's near impossible to write your page so even the newest
version of IE renders it correctlyversion of IE renders it correctly
AnnoyingAnnoying
Clicking sounds,Clicking sounds,
““Never Show Me This Message Again”Never Show Me This Message Again”
messages appearing over andmessages appearing over and
over again, you name itover again, you name it
Near zero extensibilityNear zero extensibility
Unless we call everyUnless we call every
adware toolbar a bonusadware toolbar a bonus

16. Evolution

17. Safari

18. Apple's Safari ranks fourth in the the World's Most Used
Browser race. It is Mac OS X's default browser, as well as
iOS'. It has been available on Windows PC for four years
now.
first appeared:first appeared: January 7, 2003 (Mac OS X), June 11, 2007January 7, 2003 (Mac OS X), June 11, 2007
(Windows)(Windows)
market share today:market share today: 8.72%, 62.17% (mobile)8.72%, 62.17% (mobile)

19. ProsPros
Interface, Apple StyleInterface, Apple Style
Smooth, polished and simpleSmooth, polished and simple
Reader ModeReader Mode
And Reading ListsAnd Reading Lists
CustomizableCustomizable
And AdBlock is amongAnd AdBlock is among
available add-onsavailable add-ons
Free Apple productFree Apple product
Doesn't cost an arm and a legDoesn't cost an arm and a leg

20. ConsCons
Not IntuitiveNot Intuitive
Shortcut finding = keyboard mashingShortcut finding = keyboard mashing
Missing FeaturesMissing Features
Can't find things you take for grantedCan't find things you take for granted
by nowby now
Extensions lackingExtensions lacking
A parsec away from FirefoxA parsec away from Firefox

21. ChromeChrome
Developed by Google andDeveloped by Google and
currently the third mostcurrently the third most
used browser in the world.used browser in the world.
Users love it for itsUsers love it for its
simplicitysimplicity
first appeared:first appeared: September 2, 2008September 2, 2008
market share:market share: 25%25%

22. Chrome and ChromiumChrome and Chromium
2008: Google released2008: Google released
a large portion ofa large portion of
Chrome's source code,Chrome's source code,
allowing programmersallowing programmers
to study how it worksto study how it works
and port it to otherand port it to other
OS.OS.

23. "By submitting, posting or displaying
the content you give Google a perpetual,
irrevocable, worldwide, royalty-free,
and non-exclusive license to reproduce,
adapt, modify, translate, publish,
publicly perform, publicly display and
distribute any content which you submit,
post or display on or through, the
services. This license is for the sole
purpose of enabling Google to display,
distribute and promote the services and
may be revoked for certain services as
defined in the additional terms of those
services."

24. Mozilla FirefoxMozilla Firefox
Free and open sourceFree and open source
browser, running on a wholebrowser, running on a whole
range of operating systemsrange of operating systems
and holding the second placeand holding the second place
as most used browser in theas most used browser in the
world.world.
first appeared:first appeared: November 2004November 2004
market share:market share: 25%25%

25. tabbed browsingtabbed browsing
spell checkingspell checking incremental findincremental find
live bookmarkinglive bookmarking
download managerdownload manager private browsingprivate browsing
extensibilityextensibility

26. Easy to customize:Easy to customize: support forsupport for
themes, icons, Personasthemes, icons, Personas
Redefine your browsingRedefine your browsing
experience:experience: AdBlock Plus,AdBlock Plus,
GreasemonkeyGreasemonkey
Enjoy safety:Enjoy safety: NoScriptNoScript
Fulfill any other needs:Fulfill any other needs:
addons.mozilla.orgaddons.mozilla.org

27. OperaOpera
Opera is not only a browser – it combines surfingOpera is not only a browser – it combines surfing
with email, IRC, BitTorrent and reading webwith email, IRC, BitTorrent and reading web
feeds. Additionally, Opera Mini is regarded asfeeds. Additionally, Opera Mini is regarded as
one of the best mobile browsers.one of the best mobile browsers.
first appeared:first appeared: December 9, 1996December 9, 1996
market share:market share: above 200 million users worldwide; shipping withabove 200 million users worldwide; shipping with
approximately 120 million mobile phonesapproximately 120 million mobile phones

28. Opera Software isOpera Software is
one of the fewone of the few
companies to focuscompanies to focus
on manyon many
different systemsdifferent systems
with the samewith the same
eagerness.eagerness.
They even releasedThey even released
an Opera Minian Opera Mini
emulator in aid ofemulator in aid of
designersdesigners
developing fordeveloping for
mobile platforms.mobile platforms.

29. Reference and MediaReference and Media
apple.comapple.com
cnet.comcnet.com
weblogs.mozillazine.org/asaweblogs.mozillazine.org/asa
favbrowser.comfavbrowser.com
iconarchive.comiconarchive.com
maximumpc.commaximumpc.com
mozilla.orgmozilla.org
opera.comopera.com
remake23.deviantart.comremake23.deviantart.com
tech-faq.comtech-faq.com
visualparadox.comvisualparadox.com
wallbase.ccwallbase.cc
webcredible.co.ukwebcredible.co.uk
wikimedia.orgwikimedia.org
SoftwareSoftware
The GNU Image ManipulationThe GNU Image Manipulation
ProgramProgram
Microsoft Internet ExplorerMicrosoft Internet Explorer
Apple SafariApple Safari
ChromiumChromium
ChromeChrome
GeanyGeany
KolourPaintKolourPaint
LibreOfficeLibreOffice
Mozilla FirefoxMozilla Firefox
OperaOpera

30. Download our presentation for free:Download our presentation for free:
go togo to
ac.tsarstva.bg/+browsersac.tsarstva.bg/+browsers

31. Rosen Dimov
Ivaylo Marinkov