Question

Why do color CRT screens have a lower resolution than equivalent monochrome screens?

a.

Because color screens use a high-persistence phosphor.

b.

Because color screens use interlacing technique.

c.

Because the process of combining red, green, and blue phosphor dots to create colors using a shadow mask is imprecise.

d.

Because color screens use beam penetration.

Posted under Human Computer Interaction

Answer: (c).Because the process of combining red, green, and blue phosphor dots to create colors using a shadow mask is imprecise. Explanation:The resolution of color CRT screens is lower than that of equivalent monochrome screens because the technique used to produce color is less precise. Color CRT screens use three electron guns to hit red, green, and blue phosphors. These three phosphor dots are focused to make a single point using a shadow mask, which is an imprecise method and reduces the resolution.

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