worksheet(grade1)

How many letters are on the keyboard?

• 26

• 20

• 12

The keyboard has buttons called ___.

• Keys

• tabs

• doors

Is the Keyboard an input or output device?

• Input

• Output

Which is the longest key on the keyboard?

• Caps lock

• Space bar

• Enter

What is this called?

• window

• pointer

• mouse

What is this called?

• mouse

• keyboard

• monitor

A mouse is one of the computer input device.

• True

• False

A computer mouse is used to

• Write on a computer

• produce sound

• select and open program on a computer

Mouse has ___________ buttons

• 2

• 4

• 6

turn off the computer

• shutdown

• startup

• restart