Understanding Digital Data

What does "digital data" mean?

• Data stored using images

• Data stored using digits

• Data stored using alphabets

• Data stored on paper

Which of the following is NOT a way people used to store data in the past?

• Painting on cave walls

• Writing on paper

• Typing on computers

• Storing in clouds

How does a computer store data?

• Using pictures

• Using only two digits: 0 and 1

• Using the alphabet

• Writing on paper

What number system do computers use?

• Decimal system

• Binary system

• Hexadecimal system

• Octal system

What are the two digits used in the binary system?

• 0 and 9

• 1 and 10

• 0 and 1

• 0 and 8

How many digits are used in the decimal system?

• 2

• 8

• 10

• 16

Which of these numbers is NOT used in the binary system?

• 1

• 0

• 3

• None

Which of the following is an example of digital data?

• A handwritten letter

• A picture stored in a computer

• A painting

• A printed book

What is an instruction in computer language?

• A picture of a computer

• A number used in calculations

• A command that tells the computer what to do

• A type of storage device

What can be stored as binary code in a computer?

• Sounds

• Images

• Text

• All of the above