In computing, a bit is

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

A byte is

• 8 bits
• 4 bits

a kilobyte is

• 1024 bits
• 1024 bytes

how many bits are in 2 kilobytes?

• 2
• 2 x 1024 x 8 = 16384
• 2 x 1024 = 2048

how many Bytes in 2 kilobytes?

• 2
• 2 x 1024 = 2048
• 2 x 1024 x 8 = 16384

How many megabytes are in 1 gigabyte?

• 1024
• 1
• 1024 x 10 = 10240

how many megabytes are in 4 gigabytes?

• 4
• 4 x 1024 = 4096
• 1024

how many Megabytes are in 256 kilobytes?

• 256
• 256 divided by 1024 = 0.25
• 256 x 1024 = 262144

Each song on an mp3 player is 5 megabytes.
how many songs will fit on a 500 gigabyte hard disk?

• (500x1024) divided by 5 = 102400
• (500 divided by 1024) x 5 = 2.44
• 5 * 1024 * 1024 = 5242800

A 15 minute video clip has a size of 65 megabytes
How many of these videos will fit on a 2gb usb stick?

• 15
• 2 x 1024 divided by 65 = 31
• 2 x 1024 x 1024 divided by 65 = 32263