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 word processing task associated with changing the appearance of a document is
A) Editing
B) Writing
C) Formatting
D) All of above
Related Questions - 2
Which of the following produces the best quality graphics reproduction ?
A) Laser printer
B) Ink jet printer
C) Plotter
D) Dot matrix printer
Related Questions - 3
What was the computer invented by Attanasoff and Clifford ?
A) Mark I
B) ABC
C) Z3
D) None of above
Related Questions - 4
The term gigabyte refers to
A) 1024 bytes
B) 1024 kilobytes
C) 1024 megabytes
D) 1024 gigabyte
Related Questions - 5
Which type of computers uses the 8-bit code called EBCDIC ?
A) Minicomputers
B) Microcomputers
C) Mainframe computers
D) Super computer