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 is the date when Babbage conceived Analytical engine


A) 1642
B) 1837
C) 1880
D) 1850

View Answer

Related Questions - 2


Abacus was the first


A) electronic computer
B) mechanical computer
C) electronic calculator
D) mechanical calculator

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Related Questions - 3


Computers with 80286 microprocessor is


A) XT computer
B) AT computers
C) PS/2 computer
D) None of above

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Related Questions - 4


Properly arranged data is called


A) Field
B) Words
C) Information
D) File

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Related Questions - 5


Today’s computer giant IBM was earlier known by different name which was changes in 1924. What was that name?


A) Tabulator Machine Co.
B) Computing Tabulating Recording Co.
C) The Tabulator Ltd.
D) International Computer Ltd.

View Answer