Computer Data Representation Quiz

What does a bit represent in the context of computer data?

• A type of error

• A binary digit representing the smallest increment of data

• A unit of electrical current

• A measure of processing speed

What electrical values correspond to a bit's 0 and 1 in a computer?

• 0 for on and 1 for off

• 0 for high voltage and 1 for low voltage

• 0 for off and 1 for on

• 0 for no electricity and 1 for maximum electricity

How are analog signals represented digitally?

• By converting them into a continuous electrical signal

• By measuring values at regular intervals called samples

• By using a single wire to represent multiple bits

• By using a transistor with a threshold voltage of 4.5 volts

What is required for a transistor to turn on in a computer?

• Any voltage level as long as it is constant

• A voltage level below the threshold voltage

• A voltage level above the threshold voltage

• A varying amount of electricity regardless of voltage

What is the smallest unit of information represented by 0 or 1 called?

• Byte

• Kilobyte

• Bit

• Nibble

How many bits are there in a byte?

• 4 bits

• 8 bits

• 16 bits

• 1024 bits

What does a nibble represent?

• 2 bits

• 4 bits

• 8 bits

• 16 bits

How many bytes are there in a kilobyte (KB)?

• 1,000 bytes

• 1,024 bytes

• 1,048,576 bytes

• 1,073,741,824 bytes

What is the approximate amount of information contained in 1 terabyte (TB)?

• The same amount of information as in 1,610 CDs

• The same amount of information as in 878 DVDs

• The same amount of information as in a medium-sized novel

• The same amount of information as in a zettabyte

Which of the following is the largest unit of digital information?

• Megabyte (MB)

• Gigabyte (GB)

• Terabyte (TB)

• Zettabyte (ZB)