Computer Graphics is the manipulation of the image in a pictorial manner. This video is focused on Random Scan Display. In Random-Scan Display, the electron beam is directed only to the areas of the screen where a picture has to be drawn. It is also called vector display, as it draws pictures one line at a time. It can draw and refresh component lines of a picture in any specified sequence. A Pen plotter is an example of random-scan displays. ADVANTAGES: - Higher resolution as compared to raster scan display. - Produces smooth line drawing. - Less Memory required. DISADVANTAGES: - Realistic images with different shades cannot be drawn. - Colour limitations. 

Random Scan in Computer Graphics: https://www.geeksforgeeks.org/random-scan-display/