Question :
A) 1900
B) 1906
C) 1910
D) 1880
Answer : B
When was vacuum tube invented ?
A) 1900
B) 1906
C) 1910
D) 1880
Answer : B
Description :
Related Questions - 1
Which is considered a direct entry input device ?
A) Optical scanner
B) Mouse and digitizer
C) Light pen
D) All of the above
Related Questions - 2
Which of the following is not an input device ?
A) OCR
B) Optical scanners
C) Voice recognition device
D) COM (Computer Output to Microfilm)
Related Questions - 3
The terminal device that functions as a cash register, computer terminal, and OCR reader is the:
A) Data collection terminal
B) OCR register terminal
C) Video Display terminal
D) POS terminal
Related Questions - 4
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
Related Questions - 5
Storage capacity of magnetic disk depends on
A) tracks per inch of surface
B) bits per inch of tracks
C) disk pack in disk surface
D) All of above