|
|
|
|
|
Orders Of Magnitude (Data)This is a list of orders of magnitude for data (or information), measured in bits. This article assumes a formal attitude towards terminology. That means two things: - A group of 8 bits in a computer is called an octet. A byte is the same for most practical purposes, but does not equal 8 bits on all computer architectures.
- The decimal prefixes kilo, mega etc. are strictly powers of 10. The powers of 2 are the binary prefixes kibi, mebi etc.
Accordingly, 8192 bits of data are a kibioctet and 8000 bits are a kilooctet.
- 1 bit – True or false.
- 10 bits
- 16 bits – In many programming languages, the size of an integer capable of holding 65,536 different values.
- 32 bits – Size of an integer capable of holding 4,294,967,296 different values.
- 32 bits – Size of an IEEE 754 single-precision floating point number.
- 32 bits – Size of addresses in IPv4, the current Internet protocol.
- 56 bits – Cipher strength of the DES encryption standard.
- 64 bits – Size of an integer capable of holding 18,446,744,073,709,551,616 different values.
- 64 bits – Size of an IEEE 754 double-precision floating point number.
- 102 bits
- 103 bits – One kilobit.
- 1,024 bits (210 bits) – One kibibit.
- 8,000 bits (103 octets) – One kilooctet.
- 8,192 bits (213 bits, 210 octets) – One kibioctet.
- 104 bits
- 105 bits
- 106 bits – One megabit.
- 1,048,576 bits (220 bits) – One mebibit.
- 8,000,000 bits (106 octets) – One megaoctet.
- 8,388,608 bits (223 bits, 220 octets) – One mebioctet.
- 107 bits
- 11,796,480 bits – Capacity of a 3.5" floppy disk, colloquially known as 1.44 megabyte.
- 25,964,951 bits – Size of the largest known Mersenne prime. All 25,964,951 bits are 1.
- 108 bits
- 109 bits – One gigabit.
- 1,073,741,824 bits (230 bits) – One gibibit.
- 8,000,000,000 bits (109 octets) – One gigaoctet.
- 5.45 × 109 bits (650 mebioctets) – Capacity of a regular compact disc.
- 8,589,934,592 bits (233 bits, 230 octets) – One gibioctet.
- 1010 bits
- 1011 bits
- 1.46 × 1011 bits (17 gibioctets) – Capacity of a double-sided, dual-layered DVD.
- (approximately) 4.12 × 1012 bits (515 gibioctets) – As of 2002, data of pi to the largest number of digits ever calculated (1.24 trillion).
- 1012 bits – One terabit.
- 1.6 × 1012 bits (200 gigaoctets) – Capacity of a hard disk that would be considered moderately large in 2004.
- 1013 bits
- 1014 bits
- 1.5 × 1014 bits (17 teraoctets) – Amount of information in the Library of Congress, if it were all digitized.
- 1015 bits – One petabit.
- 1016 bits
- 1017 bits
- 1018 bits – One exabit.
- 1.6 × 1018 bits (200 petaoctets) – Total amount of printed material in the world.
- 1019 bits
- 1020 bits
- 1021 bits – One zettabit.
Data, Orders of magnitude
|
 |
| |
|
|