The desktop contains several key elements:
1. The desktop background - The visual background of the desktop interface. It does not have any functional purpose.
2. Icons - Graphical representations that launch programs and files when clicked. Common icons include Recycle Bin, web browser, documents.
3. Taskbar - Located at the bottom of the screen by default. It contains shortcuts to open programs, system notifications, and the Start button.
The desktop provides visual representations of a computer's programs, files, and system tools through elements like icons, background images, and the taskbar.