OCR J275 - Data Representation

Computers use binary because they have circuits which are either on or off, which gives them two states to work from to make calculations and run processes - True or False?

• True
• False

Which is the smallest storage unit in a computer?

• Bit
• Megabyte
• Nibble
• Terabyte

How many bits are in a nibble?

• 2 bits
• 4 bits
• 6 bits
• 8 bits

How many bytes are in a kilobyte?

• 2
• 124
• 1024
• 102440

How many kilobytes are in megabyte?

• 600
• 1001
• 1008
• 1024

How many megabytes are in a gigabyte?

• 750
• 1024
• 2000
• 20024

How many gigabytes are in a terabyte?

• 1024
• 1016
• 1098
• 999

What is the denary value?

• 59
• 64
• 160
• 192

Value?

• 84
• 168
• 76
• 96

Convert the denary value 56 into an 8-bit binary number

• 11000000
• 00001111
• 00111000
• 01010101