Data Representation

How is data stored on computers using the hexadecimal number system?

• Data is stored as a series of 0s and 1s

• Data is stored as a series of 0-9 and A-F

• Data is stored as series of 0-7

• Data is stored as series of letters

Data in digital circuits and computers is stored and transmitted as a series of zeros and ones. What does Logic '0' represent?

• High voltage

• Non-voltage

• Low voltage

• Intermediate voltage

What is the binary number system used for?

• Count numbers

• Play games

• Represent data using two digits

• Draw pictures

A 'byte' as a storage value in a digital system is

• 4 bits long

• 2 bits long

• 8 bits long

• 16 bits long

The decimal value 73 in its binary representation is

• 01001001

• 10010011

• 01101101

• 10100001

The binary conversion of 0100 1001 to hexadecimal is

• 59hex

• 49hex

• 4Ahex

• 28hex

The ASCII Code uses how many bits to store data in a digital system?

• 8-bit

• 16-bit

• 4-bit

• 7-bit

Eight bits can have 256 possible states.  2⁸=256. or (0-255).

• 00000001,00000011,00000101, etc.

• 10000000,01000001,00100000, etc.

• 00000000,00000001,00000010, etc.

• 00001000,00000101,00000011, etc.

What is 109 in base 10 converted to base 8?

• 156

• 159

• 150

• 155

What is 1101101 in base 16?

• 8Bhex

• 4Ahex

• 6Dhex

• 613hex