Which of the following was an early counting device used by humans?
Cowries were used for counting and also as:
Which of the following was used for measuring land areas in early times?
Which of the following was a limitation of early counting devices?
The abacus was invented by which civilization?
The abacus is mainly used for:
Which of the following devices is made up of beads strung on wire or wooden rods?
Mechanical counting devices came about because:
Which of the following is an example of a mechanical counting device?
Slide rule is a mechanical device used for:
One of the major advantages of the abacus over earlier methods of counting is that it:
The abacus is often used for teaching:
which of the following was the oldest early counting device
what is the basic reason for the development of computer
