Introduction to Binary

• Binary numbering system


  A base 2 numbering system with only 2 digits: 0 and 1
• Binary


  • Used to represent all data in computers
  • Represents true/false with 1/0
• Decimal (Denary)


  A base 10 numbering system with 10 digits: 0-9
• Place value in decimal

  Columns go up by a factor of 10 each time
• Bit


  The fundamental unit in binary, either 0 or 1
• Nibble


  4 bits
• Byte


  8 bits
• Kilobyte (KB)


  1,000 bytes
• Kibibyte (KiB)


  1,024 bytes
• Megabyte (MB)


  1,000 kilobytes
• Mebibyte (MiB)


  1,024 kibibytes
• The binary prefixes (Ki, Mi, Gi, etc.) are the correct units for representing binary data.