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
Which of the following is the first computer to use Stored Program Concept ?
A) UNIVAC
B) ENIAC
C) EDSAC
D) None of above
Related Questions - 2
Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify?
A) Track number
B) Sector number
C) Surface number
D) All of above
Related Questions - 3
Computers with 80286 microprocessor is
A) XT computer
B) AT computers
C) PS/2 computer
D) None of above
Related Questions - 4
In most of the IBM PCs, the CPU, the device drivers, memory, expansion slots and active components are mounted on a single board. What is the name of the board?
A) Motherboard
B) Daughterboard
C) Breadboard
D) Fatherboard
Related Questions - 5
One millisecond is
A) 1 second
B) 10th of a seconds
C) 1000th of a seconds
D) 10000th of a seconds