Question

Compare refresh type and storage type crt display

Answer 1

Refresh Type Cathode Ray TubeStorage Type Cathode Ray TubeIt uses refresh buffer or frame buffer to store picture definition.It does not use refresh buffer as picture definition is stored inside CRT on a grid called storage mesh.Picture definition is stored in form of intensity values for various screen points.Picture definition is stored in form of positive charge distribution on storage mesh.Concept of refreshing is used to maintain picture display on screen.No refreshing is required.It can produce wide range of colors as various intensity values are possible.It does not display colors and displays single level of intensity value.Colored refresh CRT uses three electron guns – red, green and blue.It uses two electron guns – primary and flood gun.