input & output devices Practice Questions Answers Test with Solutions & More Shortcuts

Question : 16

Who is called the "Grandfather" of the computer:

a) Blaise Pascal

b) Charles Babbage

c) Joseph Jacquard

d) None of The Above

Question : 17

The first mechanical computer designed by Charles Babbage was called:

a) Abacus

b) Analytical Engine

c) Calculator

d) None of The Above

Question : 18

Father of the punch card processing:

a) Charles Babbage

b) Dr. Herman Hollerith

c) Blaise Pascal

d) None of The Above

Question : 19

Which is true for Digital Computer:

a) It is less accurate than analog computer

b) It is used primarily in scientific applications

c) It represents the decimal numbers through a string of binary digits

d) None of The Above

Question : 20

Which is considered a direct entry device:

a) Optical Scanner

b) Light Pen

c) Digitizer

d) Mouse

e) All of the above