What is the feature of Dreamweaver ?

I have heard a lot about an application called Dreamweaver in my multimedia lectures. But still I am unable to get an exact picture of what it is all about ?
Can anyone help to explain me what is this dreamweaver feature ?

Adobe Dreamweaver is a web development application originally created by Macromedia, and is now developed by Adobe Systems, who acquired Macromedia in 2005.

Dreamweaver is available for both Mac and Windows operating systems. Recent versions have incorporated support for web technologies such as CSS, JavaScript, and various server-side scripting languages and frameworks including ASP, ColdFusion, and PHP.

Although a hybrid WYSIWYG and code-based web design and development application, Dreamweaver's WYSIWYG mode can hide the HTML code details of pages from the user, making it possible for non-coders to create web pages and sites.
One criticism of this approach is that it has the potential to produce HTML pages whose file size and amount of HTML code is larger than an optimally hand-coded page would be, which can cause web browsers to perform poorly.
This can be particularly true because the application makes it very easy to create table-based layouts.

Dreamweaver allows users to preview websites in locally-installed web browsers. It also has site management tools, such as FTP/SFTP and WebDAV file transfer and synchronization features, the ability to find and replace lines of text or code by search terms and regular expressions across the entire site, and a templating feature that allows single-source update of shared code and layout across entire sites without server-side includes or scripting.

The behaviours panel also enables use of basic JavaScript without any coding knowledge, and integration with Adobe's Spry AJAX framework offers easy access to dynamically-generated content and interfaces.

Dreamweaver is supported by a large community of extension developers who make extensions available (both commercial and free) for most web development tasks from simple rollover effects to full-featured shopping carts.
Dreamweaver can utilize third-party "Extensions" to enable and extend core functionality of the application, which any web developer can write (largely in HTML and JavaScript). Like other HTML editors, Dreamweaver edits files locally, then uploads all edited files to the remote web server using FTP, SFTP, or WebDAV.

5 powerfull features in the dreamweaver 5 are ,

The Code Inspector
Results Window
Templates and Nested Templates
Snippets
Commands

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