Difference between Beam penetration and Shadow mask

Beam Penetration Method

1. These method  is used in  Random scan system to display color.
2. It can display only four color like red , green , orange , yellow.
3. Less color are available because color in beam penetration depend on the speed of electron beam.
4. Less expensive.
5. Quality of picture is not good.
6. High Resolution.

Shadow Mask Method

1. These method is used in Raster scan system to display color.
2. It can display millions of colors.
3. Millions color are available because color in shadow mask depend on the type of the ray.
4. More expensive.
5. Quality of picture is good .
6. Low resolution.