How many bytes are in 1MB? Solved

Question

Hello to the entire community,
I know this topic has been repeated over and over, but I haven't seen anything about Bytes.
I'd like to know how many Bytes are in 1 Megabyte. And how many Bytes
for 100 Megabytes. (I'm actually looking for a public file hosting service...)

Thank you in advance to whoever answers me.

Configuration: Windows XP Firefox 2.0.0.11

Zestyr · Accepted Answer

Anglais -> bytes Français -> octets Chinois -> >google<  -- #define ZESTYR BOSS

Claude Claude · Answer

1 Byte = 1 octet = 8 Bits

1 k octet = 1024 octets

1 Meg = 1024 K

1 giga = 1024 M

These are the units taken into account by computing, BUT distribution has not entirely adhered to these rules and has replaced the factor 1024 with 1000, except for RAM memory.

For example, when you are provided with a 20 Meg disk

it makes 20 * 1000 * 1000 bytes and not 20 * 1024 * 1024 bytes

--

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vlmath · Answer

Hi,

Just a little detail:

In computing, there are two systems for counting: either on 1000, where the prefixes are Ko, Mo, Go, To, Po, ...
But there is also the practice of counting on 1024: the prefixes then become Kio, Mio, Gio, ... (the "i" is there to indicate "Informatics").

By misuse of language, people use one instead of the other.

See you soon!

vlmath · Answer

The SI (International System) is very clear about the prefixes: K = 10^3, M = 10^6, G = 10^9 ....

It's true, I forgot to say something, I just noticed it, and I'm sorry: in French we note Kio. The correct international notation is Kibi, Mebi, Gibi, ...

<Citation>
Traditionally, when applied to bytes, the prefixes “kilo”, “mega”, “giga”, etc., do not represent a multiple of 1,000, but a multiple of 2^10 = 1,024. However, this tradition violates the current standards for other units, including the bit, and is not even applied consistently to bytes, particularly in the measurement of hard drive capacity. A new standard has therefore been created to denote multiples of 2^10 = 1,024: “kibi”, “mebi”, “gibi”, etc.

The traditional usage remains widespread among professionals as well as the general public, even though it is in contradiction with the SI recommendations that clearly define other prefixes
</Citation>

Source: Wikipedia (I just added a ^ between the 2 and the 10, to be more compliant with what is written on Wikipedia (otherwise it read 210))

See also: SI Prefixes

stop converse ^^ · Answer

Well, to tell you all, vlmath explains everything, so there's no need to re-explain it. Alright, take care everyone ;)

How many bytes are in 1MB?

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