Question

What is a significant difference between random scan and raster scan displays?

a.

Random scan displays scan the entire screen sequentially and horizontally.

b.

Random scan displays can draw lines directly without creating jaggies.

c.

Random scan displays have lower resolution than raster scan displays.

d.

Random scan displays use flood guns to maintain a stable image.

Posted under Human Computer Interaction

Answer: (b).Random scan displays can draw lines directly without creating jaggies. Explanation:Random scan displays, also known as vector displays, draw lines directly on the screen rather than scanning the whole screen sequentially and horizontally like raster scan (or bitmap) displays. By updating the screen at least 30 Hz, these displays can reduce flicker and avoid creating jagged lines, or "jaggies", which allows them to achieve higher resolutions. However, they are more expensive and less widely used than raster scan displays.

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