WordPress extension capable components are: 
              Themes, determine your site’s appearance and how content is displayed.
              Plugins, can add functions, template tags or widgets.
              Widgets, are drag-and-drop components that can be added to your site’s sidebars.

Installing WordPress using the Web Interface:1> Download a latest version WordPress from wordpress.org
                2> Check the basic requirement of database and PHP version
                3> Upload the wordpress folder in host
                4> Open WordPress folder using web browser
                5> Create a database
                6> Click on Let’s go button
                7> Set database information Database Name(that previously created), User Name, Password, Database Host and Table Prefix(optional) 
                8> Click Submit button
                9> Click Run the install button
                10> Set Needed Information Site Title,Username(Usernames cannot be changed),Password,E-mail(This information is editable) and Check Privacy check box 
                11> Click on Install WordPress button
                   You can see Success! Page, So installation is successfully done.

The available post formats in WordPress: 
                  Standard (text)
                  Image
                  Image gallery
                  Link
                  Video
                  Audio
                  Chat transcript
                  Status (a brief update)
                  Quote (a quote, its source, and a link URL)
                  Aside

Short codes are bracketed words that are replaced with content when the post is displayed to visitors. Shortcodes work like text macros in Microsoft Word.

Tags are subject key word that are used to drive search engine optimization where an editor or administrator, authors are free to create new tags simply by typing them into the Tag box while writing a post.