Computer Graphics is the manipulation of the image in a pictorial manner. The rendering can be done in this manipulation and creation of the new image and hence computer graphics is used. Raster Scan Displays are the most common type of graphics monitor which employs CRT. It is based on television technology. In a raster scan system electron beam sweeps across the screen, from top to bottom covering one row at a time. This video focused on Raster Scan Display. An important function of the Raster-Scan display process is to digitize a picture definition given in an application program into a set of pixel intensity values for storage in the refresh buffer. This process is referred to as scan conversion. The purpose of display processors is to relieve the CPU from graphics jobs. Display processors can perform various other tasks like creating different line styles, displaying color areas, etc. Typically display processors are utilized to interface input devices, such as mice, joysticks. This video also focused on the difference between the Raster Scan display and the Random Scan display. Raster Scan associated with a degree and random scan square measure the mechanisms employed in displays for rendering the image or picture. The most distinction between a raster scan and a random scan lines within the drawing of an image wherever the raster scan points the non-particulate radiation at the whole screen however incorporating only one line at a time within the downward direction. On the opposite hand, within the random scan, the non-particulate radiation is guided on simply those regions of the screen wherever the image really lies. Apart from that, in this video working of Raster Scan display, advantages, disadvantages, and application area also discussed in detail. 

Raster Scan Display: https://www.geeksforgeeks.org/raster-scan-displays/ 

Raster Scan Display Mechanism: https://www.geeksforgeeks.org/what-is-raster-scan-display-mechanism/