Question

What is one advantage of the direct view storage tube used in analog storage oscilloscopes?

a.

It can selectively erase parts of the screen.

b.

It has high contrast and high brightness.

c.

It produces a stable display with no flicker.

d.

It has superior color display capabilities.

Posted under Human Computer Interaction

Answer: (c).It produces a stable display with no flicker. Explanation:Direct view storage tubes, like those used in analog storage oscilloscopes, have an advantage in that they produce a stable display with no flicker. This is achieved by using flood guns to maintain the image. However, these displays have some drawbacks, including low contrast, low brightness, and difficulty displaying color. In addition, while the screen image can be incrementally updated, it cannot be selectively erased - any items that need to be removed must be done by redrawing the entire image on a completely erased screen.

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