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A megabit is a unit of digital information storage, abbreviated Mbit (or Mb).

1 megabit = 106 = 1,000,000 bit
Bit

A bit is a binary numeral system numerical digit, taking a value of either 0 or 1. Binary digits are a basic unit of information Computer data storage and transmission in digital computing and digital information theory....
s which is equal to 125,000 byte
Byte

A byte is a basic unit of measurement of Computer storage in computer science. In many computer architectures it is a Byte addressing memory address space....
s. In kilobyte
Kilobyte

Kilobyte is a unit of Computer data storage equal to either 1,024 bytes or 1,000 bytes , depending on context.It is abbreviated in a number of ways: KB, kB, K and Kbyte....
s this is either 125 kB
Kilobyte

Kilobyte is a unit of Computer data storage equal to either 1,024 bytes or 1,000 bytes , depending on context.It is abbreviated in a number of ways: KB, kB, K and Kbyte....
 (decimal meaning) or about 122 kB (122 KiB
Kibibyte

A kibibyte is a unit of information or computer storage, established by the International Electrotechnical Commission in 2000. Its symbol is KiB....
) (binary meaning
Binary prefix

In computing, a binary prefix is a set of letters that precede a unit of measure to indicate multiplication by a power of two. In certain contexts in computing, such as computer memory sizes, units of information storage and communication traffic have traditionally been reported in multiples of powers of two....
).

The megabit is most commonly used when referring to data transfer rates in network speeds, e.g. a 100 Mbit/s (megabit per second) Fast Ethernet
Ethernet

Ethernet is a family of Data frame-based computer networking technologies for local area networks . The name comes from the physical concept of the Luminiferous aether....
 connection.






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A megabit is a unit of digital information storage, abbreviated Mbit (or Mb).

1 megabit = 106 = 1,000,000 bit
Bit

A bit is a binary numeral system numerical digit, taking a value of either 0 or 1. Binary digits are a basic unit of information Computer data storage and transmission in digital computing and digital information theory....
s which is equal to 125,000 byte
Byte

A byte is a basic unit of measurement of Computer storage in computer science. In many computer architectures it is a Byte addressing memory address space....
s. In kilobyte
Kilobyte

Kilobyte is a unit of Computer data storage equal to either 1,024 bytes or 1,000 bytes , depending on context.It is abbreviated in a number of ways: KB, kB, K and Kbyte....
s this is either 125 kB
Kilobyte

Kilobyte is a unit of Computer data storage equal to either 1,024 bytes or 1,000 bytes , depending on context.It is abbreviated in a number of ways: KB, kB, K and Kbyte....
 (decimal meaning) or about 122 kB (122 KiB
Kibibyte

A kibibyte is a unit of information or computer storage, established by the International Electrotechnical Commission in 2000. Its symbol is KiB....
) (binary meaning
Binary prefix

In computing, a binary prefix is a set of letters that precede a unit of measure to indicate multiplication by a power of two. In certain contexts in computing, such as computer memory sizes, units of information storage and communication traffic have traditionally been reported in multiples of powers of two....
).

The megabit is most commonly used when referring to data transfer rates in network speeds, e.g. a 100 Mbit/s (megabit per second) Fast Ethernet
Ethernet

Ethernet is a family of Data frame-based computer networking technologies for local area networks . The name comes from the physical concept of the Luminiferous aether....
 connection. In this context, like elsewhere in telecommunications, it always equals 106 bits. Residential high speed Internet access is often advertised incorrectly in megabits (a unit of information) rather than megabit per second.

A binary counterpart of the megabit, the mebibit
Mebibit

The mebibit is a standards-based binary multiple of the bit, a unit of Computer data storage. It is abbreviated Mibit or sometimes Mib....
, refers to the binary quantity of 10242 bits. Standard industry practice in RAM
Ram

Ram, ram, or RAM as a non-acronymic wordAs a non-acronymic word Ram, ram, or RAM may refer to:...
 and ROM
Rom

ROM, Rom, or rom is an abbreviation and name that may refer to:...
 manufacture is to use the Mb abbreviation in reference to this binary quantity. For example, a single discrete DDR3 chip specified at 512Mb invariably contains 229 bits = 536,870,912 bits = 512 Mibit of storage, or 67,108,864 8-bit bytes, variously referred to as either 64 mebibytes or (debatable) 64 megabytes.

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See also

  • Megabyte
    Megabyte

    Megabyte is a SI prefix-multiple of the unit byte for digital information computer storage or transmission and is equal to 106 bytes....
  • Orders of magnitude (data)
    Orders of magnitude (data)

    This is a list of multiples for Computer data storage, measured in bits. This article assumes a descriptive attitude towards terminology, reflecting actual usage by the speakers of the language....