Question :
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
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
The ALU of a computer responds to the commands coming from
A) Primary memory
B) Control section
C) External memory
D) Cache memory
Related Questions - 3
What is required when more than one person uses a central computer at the same time ?
A) Light pen
B) Mouse
C) Digitizer
D) Terminal
Related Questions - 4
A high quality CAD system uses the following for printing drawing and graphs
A) Dot matrix printer
B) Digital plotter
C) Line printer
D) All of the above
Related Questions - 5
From which generation operating systems were developed ?
A) First
B) Second
C) Third
D) Fourth