Which of the following calculations are performed by computer?
a) adding two numbers
b) stock control system
c) both a & b
d) none of these
Which device considers the fastest computing device ever?
a) calculator
b) computer
c) computing device
d) none of these
Early Computing Devices
Which device developed by Chinese?
a) abacus
b) Leibniz calculator
c) analytical engine
d) tabulating machine
How
many years ago abacus was developed and firstly used?
a) 4000 years ago
b) 5000 years ago
c) 4500 years ago
d) 5500 years ago
Which of the following things are included in abacus?
a) beads
b) rack
c) both a & b
d) none of these
