UNIT 1 - Grade 4. Know Your Computer

Fill in the with the correct word The joystick and mouse are devices.

• output
• pointing
• permanent
• volatile

Fill in the with the correct word. The is also known as 'the brain of a computer'.

• speaker
• output
• volatile
• CPU

Fill in the with the correct word. The printer and speakers are devices.

• output
• speaker
• CPU
• pointing

Fill in the with the correct word. ROM is in nature.

• pointing
• volatile
• permanent
• output

Fill in the with the correct word. RAM is also called memory.

• output
• pointing
• permanent
• volatile

Fill in the with the correct word. A is an output device that generates sound and waves.

• speaker
• CPU
• output
• volatile

True or False? Each key is expressed in terms of bites.

• True
• False

True or False? Multimedia is a computer-based interactive communication process.

• True
• False

True or False? Primary memory is also called the external memory.

• True
• False

True or False? A Blue-ray disc stores 4.7 GB of data while a DVD stores up to 25 GB.

• True
• False