Computer Applications
Answer
(i) GUI — GUI stands for Graphical User Interface. GUI's are visual interfaces in which instead of typing in commands, the user can use a mouse to point and click objects on the screen. The main features of a GUI are Windows, Icons, Menus and Pointers, which make these operating systems interactive in nature. Windows, MAC operating systems are GUI systems.
(ii) WIMP — The main features of a GUI are Windows, Icons, Menus and Pointers often abbreviated as WIMP. WIMP has a graphical interface and allows access to user via mouse or track-pad / track-ball. WIMP operating systems require much more RAM compared to command line systems.