How many components of information technology?
a) one
b) two
c) three
d) four
Explanation: computers, communication networks, know-how
Which of the following are most common input devices of computer?
a) microphone
b) scanner
c) digital camera
d) all of these
The most used output device of computer is……
a) scanner
b) mouse
c) monitor
d) digital camera
Which of the following are main components of system unit?
a) CPU
b) main memory
c) ALU
d) both a & b
Which device can be used to see the information?
a) disk
b) monitor
c) speaker
d) mouse
How many years ago chinses developed Abacus?
a) 4000 years ago
b) 4500 years ago
c) 5000 years ago
d) 5500 years ago
