Mb to MB conversion and difference.
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bonjour a tous,
Voilà, je m'y connais pas en info et je voudrais seulement savoir the difference between Mo and Mb
I know that Mo is megabyte but how many Mo are needed to make 1 Mb ????
Merci
Voilà, je m'y connais pas en info et je voudrais seulement savoir the difference between Mo and Mb
I know that Mo is megabyte but how many Mo are needed to make 1 Mb ????
Merci
26 answers
MO or Mo = Mega Byte (French Version)
MB = Mega Byte (English or US Version)
1Mo = 1MB
Note, do not confuse MB (MegaBytes) and Mb (MegaBits). In most systems, a MegaByte is made up of 8 bits, which means:
1Mo = 1MB = 8Mb
More information here: https://www.commentcamarche.net/informatique/technologies/24919-code-binaire-principe-codage-regles-symboles/#octet
MB = Mega Byte (English or US Version)
1Mo = 1MB
Note, do not confuse MB (MegaBytes) and Mb (MegaBits). In most systems, a MegaByte is made up of 8 bits, which means:
1Mo = 1MB = 8Mb
More information here: https://www.commentcamarche.net/informatique/technologies/24919-code-binaire-principe-codage-regles-symboles/#octet
And here's a little summary of this exciting debate:
(source: Wikipedia)
The standardization of binary prefixes in 1998 by the International Electrotechnical Commission specifies the following prefixes to represent powers of 2:
kibi for "kilo binary";
mebi for "mega binary";
gibi for "giga binary";
tebi for "tera binary";
and so on.
Regarding multiples of the byte, this gives[2]:
1 kibibyte (Kio) = 2^10 bytes = 1,024 bytes
1 mebibyte (Mio) = 2^20 bytes = 1,024 Kio = 1,048,576 bytes
1 gibibyte (Gio) = 2^30 bytes = 1,024 Mio = 1,073,741,824 bytes
1 tebibyte (Tio) = 2^40 bytes = 1,024 Gio = 1,099,511,627,776 bytes
1 pebibyte (Pio) = 2^50 bytes = 1,024 Tio = 1,125,899,906,842,624 bytes
1 exbibyte (Eio) = 2^60 bytes = 1,024 Pio = 1,152,921,504,606,846,976 bytes
1 zebibyte (Zio) = 2^70 bytes = 1,024 Eio = 1,180,591,620,717,411,303,424 bytes
1 yobibyte (Yio) = 2^80 bytes = 1,024 Zio = 1,208,925,819,614,629,174,706,176 bytes
The prefixes kilo, mega, giga, tera, etc. correspond to the same multipliers as in all other fields: powers of 10. Applied to computing, this gives:
1 kilobyte (ko) = 10^3 bytes = 1,000 bytes
1 megabyte (Mo) = 10^6 bytes = 1,000 ko = 1,000,000 bytes
1 gigabyte (Go) = 10^9 bytes = 1,000 Mo = 1,000,000,000 bytes
1 terabyte (To) = 10^12 bytes = 1,000 Go = 1,000,000,000,000 bytes
1 petabyte (Po) = 10^15 bytes = 1,000 To = 1,000,000,000,000,000 bytes
Traditional multiples [edit]
Incorrectly according to the SI, and before the 1998 standardization, derived units such as kilobyte, megabyte, gigabyte were used to represent the following values in powers of 2:
1 kilobyte (Ko) = 2^10 bytes = 1,024 bytes, or 2 to the power of 10
1 megabyte (Mo) = 2^20 bytes = 1,024 Ko = 1,048,576 bytes
1 gigabyte (Go) = 2^30 bytes = 1,024 Mo = 1,073,741,824 bytes
1 terabyte (To) = 2^40 bytes = 1,024 Go = 1,099,511,627,776 bytes
1 petabyte (Po) = 2^50 bytes = 1,024 To = 1,125,899,906,842,624 bytes
1 exabyte (Eo) = 2^60 bytes = 1,024 Po = 1,152,921,504,606,846,976 bytes
1 zettabyte (Zo) = 2^70 bytes = 1,024 Eo = 1,180,591,620,717,411,303,424 bytes
1 yottabyte (Yo) = 2^80 bytes = 1,024 Zo = 1,208,925,819,614,629,174,706,176 bytes
So since 1998: 1 kibibyte = 1024 bytes
1 kilobyte = 1000 bytes
(source: Wikipedia)
The standardization of binary prefixes in 1998 by the International Electrotechnical Commission specifies the following prefixes to represent powers of 2:
kibi for "kilo binary";
mebi for "mega binary";
gibi for "giga binary";
tebi for "tera binary";
and so on.
Regarding multiples of the byte, this gives[2]:
1 kibibyte (Kio) = 2^10 bytes = 1,024 bytes
1 mebibyte (Mio) = 2^20 bytes = 1,024 Kio = 1,048,576 bytes
1 gibibyte (Gio) = 2^30 bytes = 1,024 Mio = 1,073,741,824 bytes
1 tebibyte (Tio) = 2^40 bytes = 1,024 Gio = 1,099,511,627,776 bytes
1 pebibyte (Pio) = 2^50 bytes = 1,024 Tio = 1,125,899,906,842,624 bytes
1 exbibyte (Eio) = 2^60 bytes = 1,024 Pio = 1,152,921,504,606,846,976 bytes
1 zebibyte (Zio) = 2^70 bytes = 1,024 Eio = 1,180,591,620,717,411,303,424 bytes
1 yobibyte (Yio) = 2^80 bytes = 1,024 Zio = 1,208,925,819,614,629,174,706,176 bytes
The prefixes kilo, mega, giga, tera, etc. correspond to the same multipliers as in all other fields: powers of 10. Applied to computing, this gives:
1 kilobyte (ko) = 10^3 bytes = 1,000 bytes
1 megabyte (Mo) = 10^6 bytes = 1,000 ko = 1,000,000 bytes
1 gigabyte (Go) = 10^9 bytes = 1,000 Mo = 1,000,000,000 bytes
1 terabyte (To) = 10^12 bytes = 1,000 Go = 1,000,000,000,000 bytes
1 petabyte (Po) = 10^15 bytes = 1,000 To = 1,000,000,000,000,000 bytes
Traditional multiples [edit]
Incorrectly according to the SI, and before the 1998 standardization, derived units such as kilobyte, megabyte, gigabyte were used to represent the following values in powers of 2:
1 kilobyte (Ko) = 2^10 bytes = 1,024 bytes, or 2 to the power of 10
1 megabyte (Mo) = 2^20 bytes = 1,024 Ko = 1,048,576 bytes
1 gigabyte (Go) = 2^30 bytes = 1,024 Mo = 1,073,741,824 bytes
1 terabyte (To) = 2^40 bytes = 1,024 Go = 1,099,511,627,776 bytes
1 petabyte (Po) = 2^50 bytes = 1,024 To = 1,125,899,906,842,624 bytes
1 exabyte (Eo) = 2^60 bytes = 1,024 Po = 1,152,921,504,606,846,976 bytes
1 zettabyte (Zo) = 2^70 bytes = 1,024 Eo = 1,180,591,620,717,411,303,424 bytes
1 yottabyte (Yo) = 2^80 bytes = 1,024 Zo = 1,208,925,819,614,629,174,706,176 bytes
So since 1998: 1 kibibyte = 1024 bytes
1 kilobyte = 1000 bytes
If we read the Wikipedia page: "In the usage popularized by computer scientists..."
Unfortunately, it is not "computer scientists" who define the kilogram.
The kilogram is defined by the BIPM, and it is equal to 10 to the power of 3. Nothing else.
Just as they are not going to redefine the number of seconds in a minute to align with the frequencies of the quartz present in computers.
And it is also clearly stated:
"At the time of '32K' RAM computers, this confusion was not very dangerous, since the difference between 2^10 and 10^3 is only 2.4%. Nowadays, however, with the dizzying growth of memory and storage device capacities, these differences lead to increasingly larger errors."
So no, this confirms that it is a mistake, perpetuated year after year by software publishers and teachers.
Unfortunately, it is not "computer scientists" who define the kilogram.
The kilogram is defined by the BIPM, and it is equal to 10 to the power of 3. Nothing else.
Just as they are not going to redefine the number of seconds in a minute to align with the frequencies of the quartz present in computers.
And it is also clearly stated:
"At the time of '32K' RAM computers, this confusion was not very dangerous, since the difference between 2^10 and 10^3 is only 2.4%. Nowadays, however, with the dizzying growth of memory and storage device capacities, these differences lead to increasingly larger errors."
So no, this confirms that it is a mistake, perpetuated year after year by software publishers and teachers.
indeed,
and as a reminder:
1 Kibi == 1024
1 Mebi == 1024 Ki
1 Gibi == 1024 Mi
1 Tebi == 1024 Gi
etc ... etc....
https://fr.wikipedia.org/wiki/Kibi
--
and as a reminder:
1 Kibi == 1024
1 Mebi == 1024 Ki
1 Gibi == 1024 Mi
1 Tebi == 1024 Gi
etc ... etc....
https://fr.wikipedia.org/wiki/Kibi
--
and ... Here we go!
Hi, I'm almost getting the hang of these calculations. You were correcting someone about "MO" or "Mo." Wikipedia explains that the "o," symbol for byte, is in lowercase, but it is not acceptable in the "International System of Units" (SI) due to the risk of confusion with the digit "zero," and it adds that this issue is unresolved, as the unit of information is not part of the (SI).
once again,
the speed of a connection is not expressed in MO or Mb or MB but in bit/s.
MO or MB are megabytes (a storage capacity).
4 Mbit/s is 4 Mbit/s
in theory, you could convert it by dividing by 8 to get MO/S (megabytes per second) but it's much less significant
that would be 0.5 MO/S, not great.
see also:
the difference between go and gb of bandwidth#9
--
the speed of a connection is not expressed in MO or Mb or MB but in bit/s.
MO or MB are megabytes (a storage capacity).
4 Mbit/s is 4 Mbit/s
in theory, you could convert it by dividing by 8 to get MO/S (megabytes per second) but it's much less significant
that would be 0.5 MO/S, not great.
see also:
the difference between go and gb of bandwidth#9
--
and ... Voili Voilou Voila !
Ok!
In reality, I am looking for a company that provides SDSL access for the internet.
My current bandwidth is 4Mbit/s and it seems that we are on the ADSL offer with a speed of 8M (asymmetric). Another company is offering me an SDSL link of 2M with symmetric speed!!
I am desperately trying to find out
- which is the best offer
- if I will lose speed by switching to the other company!!!!
Our current provider talks about Mbits and the other one about Mo (I suspect they want to make me think it's better with them), without it being specified in the contract (they always mention 2M).
Hence my questions; what do we mean by a 2M offer (Mo or Mb?) and which one has the better deal?
In reality, I am looking for a company that provides SDSL access for the internet.
My current bandwidth is 4Mbit/s and it seems that we are on the ADSL offer with a speed of 8M (asymmetric). Another company is offering me an SDSL link of 2M with symmetric speed!!
I am desperately trying to find out
- which is the best offer
- if I will lose speed by switching to the other company!!!!
Our current provider talks about Mbits and the other one about Mo (I suspect they want to make me think it's better with them), without it being specified in the contract (they always mention 2M).
Hence my questions; what do we mean by a 2M offer (Mo or Mb?) and which one has the better deal?
So,
forget about the one who talks about ME, he's a clown (in my opinion) who doesn’t respect his clients.
If you're looking for SDSL, why are you interested in ADSL offers? ADSL offers a maximum of 1Mbit/s (DSL speed) for upload.
G.SHDSL provides a maximum speed of 2304 kbit/s per pair in each direction, knowing that you can couple 2 pairs to reach a full 4.6 Mbit/s ATM speed (but in both directions).
In principle, G.SHDSL connections are for professionals, so with a guaranteed speed (depending on the distance from the DSLAM).
--
forget about the one who talks about ME, he's a clown (in my opinion) who doesn’t respect his clients.
If you're looking for SDSL, why are you interested in ADSL offers? ADSL offers a maximum of 1Mbit/s (DSL speed) for upload.
G.SHDSL provides a maximum speed of 2304 kbit/s per pair in each direction, knowing that you can couple 2 pairs to reach a full 4.6 Mbit/s ATM speed (but in both directions).
In principle, G.SHDSL connections are for professionals, so with a guaranteed speed (depending on the distance from the DSLAM).
--
and ... There you go!
Actually, I'm not interested (or at least no longer) in ADSL in this situation. I was comparing two offers
- SDSL link data only of 2M (the one that tells me it's in MB)
- SDSL link data+voice of 2M (the one that clearly talks about Mb)
Currently, we have ADSL, and I would like to stop this system.
I'm just trying to find out if, depending on the offered SDSL links, I will lose or gain in browsing speed (as it is clear that we benefit in upload).
So if you could enlighten me, that would be great. Another question, what is ATM?
- SDSL link data only of 2M (the one that tells me it's in MB)
- SDSL link data+voice of 2M (the one that clearly talks about Mb)
Currently, we have ADSL, and I would like to stop this system.
I'm just trying to find out if, depending on the offered SDSL links, I will lose or gain in browsing speed (as it is clear that we benefit in upload).
So if you could enlighten me, that would be great. Another question, what is ATM?
There are still some who confuse byte and bit!
a byte = one octet
one octet = 8 bits
therefore, one should not read a MegaByte but a megaBIT.
a byte = one octet
one octet = 8 bits
therefore, one should not read a MegaByte but a megaBIT.
Well, you do like everyone else, you read and you think!
https://forums.commentcamarche.net/forum/affich-1921093-mb-en-mo-conversion-et-difference#3 and https://forums.commentcamarche.net/forum/affich-1921093-mb-en-mo-conversion-et-difference#158
https://forums.commentcamarche.net/forum/affich-1921093-mb-en-mo-conversion-et-difference#3 and https://forums.commentcamarche.net/forum/affich-1921093-mb-en-mo-conversion-et-difference#158
actually,
we are lazy and saying gB instead of gibiB is acceptable for giving an order of magnitude (and that's often the case) but it is no longer acceptable when it comes to expressing an absolute value.
here’s an example:
--
we are lazy and saying gB instead of gibiB is acceptable for giving an order of magnitude (and that's often the case) but it is no longer acceptable when it comes to expressing an absolute value.
here’s an example:
bruno@leon:~$ df Filesystem 1K-blocks Used Available Use% Mounted on /dev/hda2 18287088 2480400 14877732 15% / udev 10240 80 10160 1% /dev devshm 256232 0 256232 0% /dev/shm /dev/md0 980416536 675481988 304934548 69% /home bruno@leon:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/hda2 18G 2.4G 15G 15% / udev 10M 80K 10M 1% /dev devshm 251M 0 251M 0% /dev/shm /dev/md0 935G 645G 291G 69% /home bruno@leon:~$ df --si Filesystem Size Used Avail Use% Mounted on /dev/hda2 19G 2.6G 16G 15% / udev 11M 82k 11M 1% /dev devshm 263M 0 263M 0% /dev/shm /dev/md0 1.1T 692G 313G 69% /home bruno@leon:~$
--
and ... Voili Voilou Voila !
Bonjour, vous allez encore vous énerver quand vous allez voir ma question mais sur dailymotion, je ne peux pas ajouter une vidéo car elle est trop grande mais j'ai l'impression que ce n'est pas ce problème-là
alors, 198,948 KO est = à combien de MO ?
Merci d'avance
alors, 198,948 KO est = à combien de MO ?
Merci d'avance
at the same time, the question was for 198,948 KB
the question remains whether the thousands were written in the English style or the decimals in the French style, sacred conventions: http://www.nexen.net/index.php?option=com_nexen_v2&Itemid=232&&lang=FR&nexen_url_type=intern&nexen_path=docs%2Fphp%2Fannotee%2Ffunction.number-format.php
--
and ... Voila Voilou Voila!
the question remains whether the thousands were written in the English style or the decimals in the French style, sacred conventions: http://www.nexen.net/index.php?option=com_nexen_v2&Itemid=232&&lang=FR&nexen_url_type=intern&nexen_path=docs%2Fphp%2Fannotee%2Ffunction.number-format.php
--
and ... Voila Voilou Voila!
how should I tell you?
http://www.commentcamarche.net/forum/affich 1921093 difference between mb and mo?page=2#30
Octet in French == Byte in English.
--
http://www.commentcamarche.net/forum/affich 1921093 difference between mb and mo?page=2#30
Octet in French == Byte in English.
--
and ... There you go!
On 8-bit ASCII based systems, yes!
But not on 6-bit BCD systems... (old IBM, for example)...
Byte = word = mot ≠ octet
--
A+ Blux
But not on 6-bit BCD systems... (old IBM, for example)...
Byte = word = mot ≠ octet
--
A+ Blux
"Fools dare everything. That's how you recognize them"
warf
come on,
to make it a total mess: http://www.trailing-edge.com/~bobbemer/BYTE.HTM
and its made in google translation: http://translate.google.com/...
--
come on,
to make it a total mess: http://www.trailing-edge.com/~bobbemer/BYTE.HTM
and its made in google translation: http://translate.google.com/...
--
and ... There you go!
Hey no, precisely. For a while now we've been explaining that we're counting in 1024 and not in 1000. So my calculation is correct.
So actually, if I understood correctly
1Mo = 1MB = 8Mb = 1024 Kio (or KiB)
and that in ads they give us a value in Go or GB, in reality they are giving us a value in Gio or GiB, which when read by our computer gives us a value in Go or GB, resulting in a smaller outcome, creating an impression of loss, while in fact, it's just a simple lie on paper :)
P.S.: I realize I may have made some mistakes in my summary since I read all the posts in one go, so I apologize if that's the case :s
1Mo = 1MB = 8Mb = 1024 Kio (or KiB)
and that in ads they give us a value in Go or GB, in reality they are giving us a value in Gio or GiB, which when read by our computer gives us a value in Go or GB, resulting in a smaller outcome, creating an impression of loss, while in fact, it's just a simple lie on paper :)
P.S.: I realize I may have made some mistakes in my summary since I read all the posts in one go, so I apologize if that's the case :s
almost that but the reverse:
1KiB == 1024 bytes
1MiB == 1,048,576 bytes == 1024 KiB.
Gibis are more advantageous than gigas (for someone buying the disk): 100 GiB gives more space than 100 GB
so the same disk will hold more gigabytes than gibibytes 100 GiB == 107 GB.
funny language we speak.
--
and ... There you go !
1KiB == 1024 bytes
1MiB == 1,048,576 bytes == 1024 KiB.
Gibis are more advantageous than gigas (for someone buying the disk): 100 GiB gives more space than 100 GB
so the same disk will hold more gigabytes than gibibytes 100 GiB == 107 GB.
funny language we speak.
--
and ... There you go !
Hello,
I support Thrax's statements!
Kudos to the moderators for your patience and your
respect towards the CCM members.
It's all to your credit :-)
Lipun.
I support Thrax's statements!
Kudos to the moderators for your patience and your
respect towards the CCM members.
It's all to your credit :-)
Lipun.
ATM is a level 2 data transport protocol.
It is currently widely used in almost all xdsl connections (most DSLAMs operate in ATM), an ATM channel is identified by its VPI/VCI number (VP/VC), usually 8/35 on subscriber-side DSL accesses, then ATM connections go up to the ISP routers: http://perso.orange.fr/wallu/data.htm
browsing speed ...
in principle, it won’t change much for surfing, only the upstream traffic (from your servers to the outside) will be greatly improved.
symmetrical DSL is mainly used for voice connections or to connect servers.
--
It is currently widely used in almost all xdsl connections (most DSLAMs operate in ATM), an ATM channel is identified by its VPI/VCI number (VP/VC), usually 8/35 on subscriber-side DSL accesses, then ATM connections go up to the ISP routers: http://perso.orange.fr/wallu/data.htm
browsing speed ...
in principle, it won’t change much for surfing, only the upstream traffic (from your servers to the outside) will be greatly improved.
symmetrical DSL is mainly used for voice connections or to connect servers.
--
and ... Voili Voilou Voila !
let's pass it on, my brothers.