There are 5 default widget areas, which you can use to add your own content and functionality (Appearance > Widgets).
Sidebar Default
This is default slider bar. You can configure the position of this sidebar to left, right, bottom in Theme Options
Footer widget 1
This sidebar is used to display widgets in footer column 1.
Footer widget 2
This sidebar is used to display widgets in footer column 2.
Footer widget 3
This sidebar is used to display widgets in footer column 3.
Footer widget 4
This sidebar is used to display widgets in footer column 4.