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Very good! Each part plays a different
role. Similarly, a computer also has
many parts. Some are outside and
some inside the CPU box. Let us learn
about them.
Test Your Knowledge 21 st Century #Critical Thinking
Skills
#Technology Literacy
Write the missing element of the IPO cycle for the use of the following machines with the
help of given hints.
Hints Ready Juice, Cooking and heating
MACHINE INPUT PROCESSING OUTPUT
Microwave Rice and Water Ready to eat
Churning and
Juicer Carrots, Oranges
extracting juice
Now you know that a computer works on the IPO cycle. To follow this IPO cycle it uses
some devices. Let us learn about them in this chapter.
INPUT DEVICES
The devices that are used to give commands or instructions to the computer and tell
the computer what to do are called input devices. Let us learn about some of them.
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