Which of the following converts a pattern of printed bars into a number?
Camera
Scanner
Barcode reader
Printer
India owns a series of super computers called:
PARAM
C-DIT
C-DAC
UNIVAC
Which one help you to see and chat to a friend in another corner of the world?
Digital camera
Web camera
Track ball
Who invented the first mechanical computer?
Charles Babbage
John Napier
Abacus
Univac
Who invented calculator?
Blaise Pascal
Joseph Marie Jacquard
Which generation of computer uses VLSI chips?
First generation
Second generation
Third generation
Fourth generation
Which device translates the vibrations in the air into an electric current and sends it to the sound card?
OCR
Microphone
The main memory is generally referred to as :
Floppy disk
CD
RAM
All of these
