The document discusses the evolution of early computing devices from ancient counting methods like pebbles and bones, to the abacus invented by the Chinese, to Napier's bones in the 1600s, to punched card driven tabulating machines and looms in the 1800s-1900s. It also mentions modern mobile learning through portable electronic devices.

1. EVOLUTION OF COMPUTERS
 History of computers
They did not have any calculating
machines as you have today. They
used pebbles, bones, sticks , and
fingers of their hands to count and
calculate.

2.  Abacus
Abacus was invented by the Chinese. It
is made up of a metal or a wooden
frame.
 Napier ‘s bones
Sir John Napier invented Napier’s bones,
also called Napier’s rods

3.  Tabulating machine
Herman Hollerith invented the tabulating
machines.
 Jacquard loom
A pattern of the loom’s weave was
changed by changing the punched card .

4.  M- learing
M - learning consists of learning that takes
place through , portable, hand -held
electronic devices.
Thank you…