Computer

What is the chemical formula of water?

• Nacl

• H2O

• H2So4

• HNO3

Identify?

• PH Scale

• Decimel Scale

• Colour Paper

• Photocromatic paper

Full form of CPU

• Compact processor unit

• central processing unit

• computer processing unit

What is the use of mouse?

• helps to select text

• helps to navigate on the computer

• helps to type

Which of the following is input device?

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