Question :

Why are vacuum tubes also called valves?


A) Because they can amplify the weak signals and make them strong
B) Because they can stop or allow the flow of current
C) Both of above
D) None of above

Answer : B

Description :



Related Questions - 1


What was the computer invented by Attanasoff and Clifford ?


A) Mark I
B) ABC
C) Z3
D) None of above

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Related Questions - 2


When was Pascaline invented ?


A) 1617
B) 1620
C) 1642
D) 1837

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Related Questions - 3


The digital computer was developed primarily in


A) USSR
B) Japan
C) USA
D) UK

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Related Questions - 4


High density double sided floppy disks could store _____ of data.


A) 1.40 MB
B) 1.44 GB
C) 1.40 GB
D) 1.44 MB

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Related Questions - 5


The terminal device that functions as a cash register, computer terminal, and OCR reader is the:


A) Data collection terminal
B) OCR register terminal
C) Video Display terminal
D) POS terminal

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