Which of the following is/are the principle components of a memory-tube…
2015
Which of the following is/are the principle components of a memory-tube display?
(a) Flooding gun (b) Collector
(c) Phosphorus grains (d) Ground
Codes :
Answer: D. All the above — Answer: All the listed components are principal components of a memory-tube display. Flooding gun: provides a uniform supply of electrons that can write,…
- A.
(a) and (b)
- B.
(c) only
- C.
(d) only
- D.
All the above
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Correct answer: D
Answer: All the listed components are principal components of a memory-tube display.
Flooding gun: provides a uniform supply of electrons that can write, refresh or restore charge patterns on the storage target.
Collector: collects excess electrons and helps maintain the stored charge distribution so the image or data can be preserved and read.
Phosphor grains (phosphor screen): emit visible light when struck by electrons, producing the observable display.
Ground (reference electrode): provides the reference potential and return path required to control electrode voltages and stabilize the stored charges.
Reason: Each listed component plays a distinct and necessary role in producing, storing, and displaying the image in a memory-tube display; therefore all the listed items are required.