What are the relative advantages and disadvantages of random scan and raster scan display system?

Answer 1

Raster-scan system:-1)raster displays have less resolutio.

2)the lines producced are ziz-zag as the plotted values are discrete.

3)high degree realism is achived in picture with the aid of advanced shading and hidden surface technique.

4)decreasing memory costs have made raster systems popular.

Random scan system:-1)random displays have high resolutions since the picture definition is stored as a set of line drawing commands and not as a set of intensity values.

2)smooth lines are produced as the electron beam directly follows the line path.

3)realism is difficult to achieve.

4)random-scan system's are generally costlier.

Answer 2

Advantages of Random scan display:
1)high resolution
2)produce smooth line drawings.

Disadvantages of random scan display:
1)costlier
2)just does wire frame.
3)complex scene cause visible flicker.



Advantages of raster scan display:
1)decreasing memory costs have made raster systems popular.
2)high degree realism is achieved in picture with the aid of advanced shading and hidden surface technique.
3)Computer Monitors and TVs use this method

Disadvantages of Raster scan display:
1)the lines produced are zigzag as the plotted values are discrete.
2)resolution is low.