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3. Machines that use human power to work.
Sharpener
Bicycle Scissors
COMPUTER- A MAGIC MACHINE
A computer is a smart machine. It helps you do many things quickly. People
call it a magic machine. A computer is smart, but it cannot think on its own. It
only works when you give it instructions.
TYPES OF COMPUTERS
Computers come in many shapes and sizes.
Desktop Computer
A desktop computer is a computer that stays in one place like a desk. It is not
made to move.
A computer can work all day
and night for 24 hours without
getting tired.
It is big in size.
Computer-A Smart Machine 11
