Answer Posted / sugriv roy(allahabad)

CUI
#IT STANDS FOR CHARACTER USER INTERFACE.
#IT IS COMMAND TYPE INTERFACE.
#HERE THE USER USE CHARACTER ONLY.
#ITS SUPPORT MS-DOS.
#HERE WE WORK WITH ONLY KEYBOARD.
#HERE EVERYTHING DONE BY COMMAND.
#THIS IS ALSO KNOWN AS TEXTUAL USER INTERFACE IN WHICH THE
USER GIVES INSTRUCTIONS TO THE COMPUTER BY TYPING COMMAND.

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GUI
#IT STANDS FOR GRAPHICAL USER INTERFACE.
#IT IS USER FRIENDLY INTERFACE.
#IT ACCEPTS ONLY GRAPHICAL(PICTORIAL) COMMANDS.
#IT PROVIDES TO THE USER A SCREEN FULL OF GRAPHIC ICONS.
#IT ALLOWS THE USER TO MAKE A RAPID SELECTION FROM THE
DISPLAYED ICONS OR MENU TO GIVE INSTRUCTIONS TO THE
COMPUTER.
#USED ONLY POINT AND DRAW DEVICE.
#IT ALSO PRONOUNCED"gooey".

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