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
A compiler is a translating program which ____
A) Translates instruction of a high level language into machine language
B) Translates entire source program into machine language program
C) It is not involved in program’s execution
D) All of above
Related Questions - 2
The output quality of a printer is measured by
A) Dot per sq. inch
B) Dot per inch
C) Dots printed per unit time
D) All of the above
Related Questions - 3
The main electronic component used in first generation computers was
A) Transistors
B) Vacuum Tubes and Valves
C) Integrated Circuits
D) None of above
Related Questions - 4
BCD is
A) Binary Coded Decimal
B) Bit Coded Decimal
C) Binary Coded Digit
D) Bit Coded Digit
Related Questions - 5
What is the responsibility of the logical unit in the CPU of a computer ?
A) To produce result
B) To compare numbers
C) To control flow of information
D) To do math’s works