Units of Data

What is the smallest unit of data a computer can use?

• Bit

• Byte

• Nibble

• Kilobyte

How many bits are there in a byte?

• 4

• 8

• 16

• 32

What is the purpose of an analogue-to-digital converter (ADC)?

• To convert digital data to analogue data

• To convert analogue data to digital data

• To store binary data

• To perform binary addition

Which of the following is a correct rule for binary addition?

• 1 + 1 = 2

• 1 + 0 = 0

• 1 + 1 = 10

• 0 + 0 = 1

What is the base of the hexadecimal number system?

• 2

• 10

• 16

• 8

How do you multiply a binary number by four using binary shifts?

• Shift all digits one place to the right

• Shift all digits two places to the left

• Shift all digits three places to the right

• Shift all digits two places to the right