Zettabit
Encyclopedia
The zettabit is a multiple of the unit bit
for digital information
or computer storage
. The prefix zetta (symbol Z) is defined in the International System of Units
(SI) as a multiplier of 1021 (1 sextillion, short scale), and therefore
The zettabit has the unit symbol Zbit or Zb.
The zettabit is closely related to the zebibit
, a unit multiple derived from the binary prefix
zebi of the same order of magnitude, which is equal to = , or approximately 18% larger than the zettabit.
Bit
A bit is the basic unit of information in computing and telecommunications; it is the amount of information stored by a digital device or other physical system that exists in one of two possible distinct states...
for digital information
Information
Information in its most restricted technical sense is a message or collection of messages that consists of an ordered sequence of symbols, or it is the meaning that can be interpreted from such a message or collection of messages. Information can be recorded or transmitted. It can be recorded as...
or computer storage
Computer storage
Computer data storage, often called storage or memory, refers to computer components and recording media that retain digital data. Data storage is one of the core functions and fundamental components of computers....
. The prefix zetta (symbol Z) is defined in the International System of Units
International System of Units
The International System of Units is the modern form of the metric system and is generally a system of units of measurement devised around seven base units and the convenience of the number ten. The older metric system included several groups of units...
(SI) as a multiplier of 1021 (1 sextillion, short scale), and therefore
- 1 zettabit = = = 1000 exabitExabitThe exabit is a multiple of the unit bit for digital information or computer storage. The prefix exa is defined in the International System of Units as a multiplier of 1018 , and therefore...
s.
The zettabit has the unit symbol Zbit or Zb.
The zettabit is closely related to the zebibit
Zebibit
The zebibit is a multiple of the bit, a unit of digital information storage, prefixed by the standards-based multiplier zebi , a binary prefix meaning 270...
, a unit multiple derived from the 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...
zebi of the same order of magnitude, which is equal to = , or approximately 18% larger than the zettabit.