CPU stands for ?

• Central Processing Unit

• Central Power Unit

• Central Processor User

How many keys are there on a standard keyboard?

• 100

• 108

• 104

A __________ helps to move pages up and down.

• right click

• scroll wheel

• Left click

Computers are not used in schools and offices.

• True

• False

Continuous use of headphones will harm our ears.

• True

• False

Identify this Key

• Spacebar key

• Arrow keys

• Backspace key

Identify the type of computer?

• Laptop

• Smartphone

• Tablet

How many arrow keys are there?

• two

• four

• five

The __________________ key is used to type letters, words and sentences.

• Arrow Keys

• Number Keys

• Alphabet Keys

We should sit on a chair with back rest and arm rest.

• True

• False