The yobibyte is a standards-based binary multiple

Binary prefix

In computing, a binary prefix is a specifier or mnemonic that is prepended to the units of digital information, the bit and the byte, to indicate multiplication by a power of 2...

 (prefix yobi, symbol Yi) of the byte

Byte

The byte is a unit of digital information in computing and telecommunications that most commonly consists of eight bits. Historically, a byte was the number of bits used to encode a single character of text in a computer and for this reason it is the basic addressable element in many computer...

, a unit of digital information storage. The yobibyte unit symbol is YiB.

1 yobibyte = 2⁸⁰ byte

Byte

The byte is a unit of digital information in computing and telecommunications that most commonly consists of eight bits. Historically, a byte was the number of bits used to encode a single character of text in a computer and for this reason it is the basic addressable element in many computer...

s = = zebibyte

Zebibyte

The zebibyte is a standards-based binary multiple of the byte, a unit of digital information storage. The zebibyte unit symbol is ZiB.1 zebibyte = 270 bytes = = 1,024 exbibytes...

s

The yobibyte is closely related to the yottabyte

Yottabyte

The yottabyte is a unit of information or computer storage equal to one septillion bytes .The unit symbol for the yottabyte is YB....

, which is defined as 10²⁴ bytes = (see binary prefix

Binary prefix

In computing, a binary prefix is a specifier or mnemonic that is prepended to the units of digital information, the bit and the byte, to indicate multiplication by a power of 2...

).

The zebi and yobi prefixes were originally not part of the system of binary prefixes, but were added by the International Electrotechnical Commission

International Electrotechnical Commission

The International Electrotechnical Commission is a non-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies – collectively known as "electrotechnology"...

 in August 2005.

See also

• Yobibit
  Yobibit
  The yobibit is a multiple of the bit, a unit of digital information storage, prefixed by the standards-based multiplier yobi , a binary prefix meaning 280...
  
  
• zebibyte
  Zebibyte
  The zebibyte is a standards-based binary multiple of the byte, a unit of digital information storage. The zebibyte unit symbol is ZiB.1 zebibyte = 270 bytes = = 1,024 exbibytes...
  
  
• SI prefix
  SI prefix
  The International System of Units specifies a set of unit prefixes known as SI prefixes or metric prefixes. An SI prefix is a name that precedes a basic unit of measure to indicate a decadic multiple or fraction of the unit. Each prefix has a unique symbol that is prepended to the unit symbol...
  
  
• IEEE 1541
  IEEE 1541
  IEEE 1541-2002 is a standard issued by the Institute of Electrical and Electronics Engineers concerning the use of prefixes for binary multiples of units of measurement related to digital electronics and computing....
  
  
• Orders of magnitude (data)
  Orders of magnitude (data)
  An order of magnitude is generally a factor of ten. A quantity growing by four orders of magnitude implies it has grown by a factor of 10000 or 104. However, because computers are binary, orders of magnitude are sometimes given as powers of two....