Web Applications

1. What are web applications?
A web application is any application that uses a web browser as a client. The application can be as simple as a message board or a guest sign-in book on a website, or as complex as a word processor or a spreadsheet.

2. Why are web applications used?
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. The ability to update and maintain web applications without distributing and installing software on potentially thousands of client computers is a key reason for their popularity, as is the inherent support for cross-platform compatibility. Most any desktop software can be developed as a web-based application.

3. Advantages of web applications
The many advantages of web applications are as follows:

• Zero install – all PCs have a browser.
• Web applications reduce business costs.
• Easier to develop
• More useful for your users
• Easier to install, maintain and keep secure
• Easier to grow as you grow
• Quick and easy updates
• Available 24 hours a day, 7 days a week
• Always up to date
• Direct access
• Easy customization
• Accessible anywhere

4. For what web applications are used for

• Most web applications are based on the client-server architecture where the client enters information while the server stores and retrieves information.
• Web applications can provide the same functionality and gain the benefit of working across multiple platforms. For example, a web application can act as a word processor, storing information and allowing you to 'download' the document onto your personal hard drive.
• Most web applications are based on the client-server architecture where the client enters information while the server stores and retrieves information. Internet mail is an example of this, with companies like Yahoo and MSN offering web-based email clients.