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02 COMPUTER—A
WONDERFUL MACHINE
Your Aim
to learn about:
Natural and Man-Made Things What are Machines?
Computer—A Wonderful Machine
NATURAL AND MAN-MADE THINGS
We see many things around us. Some are natural and some are man-made. For
example,
Tree Sun Cat Pencil Television Fan
Natural things Man-made things
WHAT ARE MACHINES?
Machines are things made by man. They make our work easy. They also save our
time. Some machines need electricity to work and some do not. We use many
machines in our daily life. Some examples of machines are given below:
A refrigerator keeps our food fresh. It also keeps water cool.
Refrigerator
Computer—A Wonderful Machine 9

