Who invented the first mechanical computer?
Charles Babbage
John Napier
Abacus
Univac
The main memory is generally referred to as :
Floppy disk
CD
RAM
All of these
Which of the following converts a pattern of printed bars into a number?
Camera
Scanner
Barcode reader
Printer
Which printer operates like a typewriter, pressing a typeface against paper and ink ribbon?
Impact
Non impact
Laser
Inkjet
Computers that use microprocessors are called:
Micro computer
UNIVAC
ENIAC
India owns a series of super computers called:
PARAM
C-DIT
C-DAC
Which device is used for giving instructions and data to the computers?
Memory
Processing
Output
Input
