Data representation

Base 16 numbers

• Denary

• Binary

• Hexadecimal

• IP address

Base 2 numbers

• Binary

• Hexadecimal

• Denary

Convert this denary into binary: 28

• 11101

• 11100

• 1101

• 0111

In computing, a bit is

• 8 bytes
• a single    0 or 1     on or off

A kilobyte is

• 1024 bits

• 1024 bytes

How many megabytes are in 1 gigabyte?

• 1024
• 1
• 1024 x 10 = 10240

A kilobyte is usually rounded to 1000 bytes. But actually it is _____ bytes:

• 1024
• 512
• 1048
• 9600

A gigabyte consists of 1024:

• megabytes
• terabytes
• kilobytes
• nibbles

The following is a correct order of units of storage from lowest to highest:

• a bit, a nibble, a byte, a kilobyte, a megabyte, a gigabyte, a terabyte
• a bit, a byte, a nibble, a kilobyte, a megabyte, a gigabyte, a terabyte
• a bit, a nibble, a byte, a megabyte, a kilobyte, a gigabyte, a terabyte
• a byte, a bit, a nibble, a megabyte, a kilobyte, a gigabyte, a terabyte

Which is larger?

• Megabyte

• Gigabyte