- A web application is a software program that runs in a web browser using languages like HTML, CSS, and JavaScript. It relies on a web browser to render the application and interact with a web server to retrieve and store data. - Web applications allow users to submit and retrieve data to/from a database over the internet using their web browser. The data is presented dynamically through the web application and web server. - Common examples of web applications include Google Docs, Meebo, Slide Rocket, and Mint, which allow users to create documents, chat, make presentations, and manage finances online through a web browser.

1. WEB APPLICATIONS

2. - A Web Application or web app is any software that runs in
a Web Browser. It is created in a browser-supported
programming language (such as the combination of JavaScript,
HTML and CSS) and relies on a Web Browser to render
the Application.
- Web browsers are software applications that allow users to
retrieve data and interact with content located on web pages
within a website.
🔵 What is WEB APPLICATION ?
For this Source Link : https://www.google.com.pk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=what+is+web+application+

3. - Web applications are, therefore, computer programs
allowing website visitors to submit and retrieve data to/from
a database over the Internet using their preferred web
browser. The data is then presented to the user within their
browser as information is generated dynamically (in a
specific format.
- e.g. in
HTML using CSS) by the web application through a web
server.
Specific Platform
For this Source Link : http://www.acunetix.com/websitesecurity/web-applications/

4. How do web Applications work?
- the three-layered web application model. The first layer is
normally a web browser or the user interface;
- the second layer is the dynamic content generation
technology tool such as Java servlets (JSP) or Active Server
Pages (ASP),
- and the third layer is the database containing content
(e.g., news) and customer data (e.g., usernames and
passwords, social security numbers and credit card details).
For this Source Link : http://www.acunetix.com/websitesecurity/web-applications/

6. - Through Java, JavaScript, DHTML, Flash, Silverlight and
other technologies, application-specific methods such as
drawing on the screen, playing audio, and access to the
keyboard and mouse are all possible.
-Interface
Interface Noun
(computer science) a program that controls a
display for the user (usually on a computer
monitor) and that allows the user to interact with
the system
Java (software platform)

7. - A web browser is the first tier (presentation), an engine using
some dynamic Web content technology (such
as ASP,ASP.NET, CGI, ColdFusion, JSP/Java, Node.js, PHP, Perl,
Python, Ruby on Rails or Struts2) is the middle tier (application
logic), and a database is the third tier (storage). The web
browser sends requests to the middle tier, which services them
by making queries and updates against the database and
generates a user interface.
-Structure
Structure Noun
a thing constructed; a
complex entity constructed of
many parts

8. - Example of WEB- Application
For this Source Link : http://depts.alverno.edu/cil/basic/webapps/webappexamples.html

9.  Google Docs - it lets you create your documents (like Word), spreadsheets, presentations and
more. It also allows you to collaborate and share documents.
 Meebo - a web platform for your mostly chat applications. You can login your IM accounts at the
same time or individual accounts.
 Slide Rocket - a web presentation tool that allows you to create your own presentation. It presents
some of the features in PowerPoint.
 Avairy - a powerful web creation tools for photo editing, logos, web templates, color palettes ,
audio editing and more.
 Mint - a web tool to access to your free personal financial and online management tool. It will
help you to organize your financial accounts, set your budgets needs, and put up your savings.
 JayCut - a web video editing software. With a user-friendly environment, it will let you create your
videos, add and edit clips, transitions, effects, audio, download, export in Youtube and more.
 WobZip -an online tool that makes you uncompressed your files on the fly. It supports different
compression format such as ZIP, RAR, and more zip formats. It has also an active scanner that
scan your compressed files before unzipping it.

10.  Zamzar -a powerful online file conversion tool. It converts various formats for documents, image, music, video, e-book, compressed files, cad formats. Just follow 4
easy steps to convert your files instantly.
 TokBox - a great online video chatting applications. For free users, you can chat up to 20 people. Just simply sign up,invite your friends and start video chatting.
 Moof - an online web streaming music online for your favorite music. It is like bringing your all favorite music rolled into one place. One of the great feature is you can
export your iTunes library and put it into web so you will never missed out your favorite tune.
 ESET Online Virus Scanner - deep scan your PC using your web browser. The good thing is that you don’t need to install the software and it is always up to date.
 Bitlet - a web application that lets you download your torrents. Just upload .torrent file on your computer or direct Bitlet to torrent and Bitlet will do it for you -- in case
you do not know -- A Bit torrent is a protocol for large files over the Internet.
 icloud - web operating system over the web. It is like bringing your own desktop and files running in your web browser that includes an office suite, media player,
chat client, games, productivity tool, utility applications and more. Now you won’t worry that you are working in a different PC.
 Splashup - a powerful editing tool and photo manager. It will let you manage your images and save it in different format. Various features that are likely with
Photoshop.
 Wufoo - a great building tool for your forms, invitations and survey applications. It makes your collecting of data much easier and in customize way.
 Google Voice - makes a huge deal in international calling communication. It delivers various features such as voicemail transcription, one number calling, sms to
email, block callers, screen callers, conference call and more. Bringing your all phone into your gmail account given that you are in US and Canada.
 Movavi - an online video files converter. It supports multiple formats that you need for your videos. In just 3 simple step, you will get your converted video file and
watch.
 HootSuite - a web apps for your social networking experience. Updating and monitoring your social activities such as Twitter, Facebook, LinkedIn, WordPress and
Ping.fm will be easy.It is also good for businesses that tracks statistics of their business over the web.
 Balsamiq - a web wireframing tool that is great for web designer and developers. It will make your drawing more in detailed and rearrange it easily. It is a great tool
to collaborate your team work.
For this Source Link : http://depts.alverno.edu/cil/basic/webapps/webappexamples.html