1.2.3

• Each 1 or 0 is a bit (Binary digIT)
• Nibble

  4 bits
• Byte (B)

  8 bits
• Kilobyte (kB)

  1000 bytes
• Megabyte (MB)

  1000 kilobytes
• Gigabyte (GB)

  1000 megabytes
• Terabyte (TB)

  1000 gigabytes
• Petabyte (PB)

  1000 terabytes
• sound file size = sample rate x duration (s) x bit depth
• image file size = colour depth x image height (px) x image width (px)
• text file size = bits per character x number of characters
• Data needs to be converted into a binary format to be processed by a computer