Jan

Confusion with megabytes, 1 megabyte is 1 million bytes or 1024 * 1024 (1048576) bytes?

JIGAR PATEL Category

Uncategorized Tags

megabytes

i have two question

1> 1 megabyte is 1 million bytes or 1024 * 1024 (1048576) bytes?

2> what is the Difference between Mibit/s or Mib/s and MB/s or MBps and Mbit/s, Mb/s and Mbps MiB/s or MiBps?

“MB/s” usually means “megabytes per second”. This can be one of two definitions, depending on who you ask:

1> 1 million bytes per second (8 million bits per second) (per the IEEE’s definition)

2> The more commonly seen definition of 1024 * 1024 (1048576) bytes per second (8388608 bits per second), seen commonly in many usages.

In most of the way 1 megabyte = 1024 * 1024 (1048576) bytes were taken in account but few years ago

The IEEE has proposed that computers should follow the SI prefixes, and use “Megabyte” to mean 10^6 bytes, not 2^20 bytes, which has been done historically. And thus created all the confusion over which definition of a megabyte one is actually using.

To over come from this confussion

By the end of 2007, standards and government authorities including IEC, IEEE, EU, and NIST proposed standards for binary prefixes and requiring the use of megabyte to strictly denote 1000² bytes andmebibyte to denote 1024² bytes.

So now

Name (Symbol)	Value	Name (Symbol)	Value
kilobyte (kB)	10³	kibibyte (KiB)	2¹⁰ = 1.024 × 10³
megabyte (MB)	10⁶	mebibyte (MiB)	2²⁰ ≈ 1.049 × 10⁶
gigabyte (GB)	10⁹	gibibyte (GiB)	2³⁰ ≈ 1.074 × 10⁹
terabyte (TB)	10¹²	tebibyte (TiB)	2⁴⁰ ≈ 1.100 × 10¹²
petabyte (PB)	10¹⁵	pebibyte (PiB)	2⁵⁰ ≈ 1.126 × 10¹⁵
exabyte (EB)	10¹⁸	exbibyte (EiB)	2⁶⁰ ≈ 1.153 × 10¹⁸
zettabyte (ZB)	10²¹	zebibyte (ZiB)	2⁷⁰ ≈ 1.181 × 10²¹
yottabyte (YB)	10²⁴	yobibyte (YiB)	2⁸⁰ ≈ 1.209 × 10²⁴

Prefix: k vs Ki

k- stands for kilo, meaning 1,000, while Ki- stands for kilobinary (“kibi-”), meaning 1,024. .

Suffix: b vs B

b stands for bit and B stands for byte.

See this for example and clear all things

1> Megabyte per second

A megabyte per second (MB/s or MBps) is a unit of data transfer rate equal to:

1,000,000 bytes per second, or

2> Megabit per second

A megabit per second (Mbit/s, Mb/s, or Mbps) is a unit of data transfer rate equal to:

1,000,000 bits per second or

3>Mebibyte per second

A mebibyte per second (MiB/s or MiBps) is a unit of data transfer rate equal to:

1,048,576 bytes per second, or

4>Mebibit per second

A mebibit per second (Mibit/s or Mib/s) is a unit of data transfer rate equal to:

1,048,576 bits per second or

JIGAR PATEL

hey I am an Artist who love to write code…! Well I am an EC graduate From Ganpat University and now i am working as Embedded software engineer in one private firm.. find me at here JigAr Patel

More Posts – Website – Twitter – Facebook