Explain the advantage and disadvantage of Raster CRT

Advantages

• Allows solids, not just wireframes
• Leverages low-cost CRT technology (i.e., TVs)
• Bright, i.e. display emits light

Disadvantages

• Requires screen-size memory array
• Discreet sampling (pixels), i.e. the lines are not straight anymore as in random scan display device. The lines now consist of pixels that may lead to jig jag
• Practical limit on size (call it 40 inches)
• Bulky
• Finicky (convergence, warp, etc.).

 

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