Icons are graphic symbols representing window element like files, folders, shortcuts etc. Icon play a very important part in graphical user interface(GUI). Commonly used icons are application icons, short cut document icons and disk drive icons.
Application Icons − These are graphic representation of the software package's logo.
Shortcut Icons − These are graphics pointing to a particular application, document or folder.
Document Icon − A document window can be minimized to a document icon.
Disk-Drive Icons − The disk-drive icons graphically represent various disk-drives options -floppy disk, hard disk, CD-ROM,