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Is there any preference between the two.
So far I have only found the price.
Thanks....
mmc is limited by size (not physical, but how much storage space) - i forget how much is max, maybe 128? maybe less? sd goes up to 512 MB, and 1GB soon..
-arebelspy
mmc is slower and old tech now they have about 512mb tops out
sd is aot faster and can have upto 1gb at the mo
Bought a 16gb card and it only has 14.8 on it, after a google search i see that they are all llike that.
Trade descriptions act?
It's the way its formatted, every hard drive you buy comes like that...they always state the unformatted capacity
For marketing 16GB = 16'000'000'000 bytes, which is usually written in small somewhere on the package, while for your system 16GB would be 16x1024x1024x1024 = 17179869184 bytes.
It's the same for every storage device, be it memory cards, hard drives, DVDs,...
I'm, sorry for being thick and a noob
can you get the full 16 out of it by re-format or is that just the final size
jonbaker76 said:
I'm, sorry for being thick and a noob
can you get the full 16 out of it by re-format or is that just the final size
Click to expand...
Click to collapse
You're being neither thick or a noob mate.
As described by kilrah, when selling stuff they call 1GB 1,000,000,000 bytes, whereas any computer type device calls 1GB 1073741824 bytes. It's because 1KB is actually 1024 bytes, 1MB is 1024KB and 1GB is 1024MB, but in the "normal" world 1KB is 1000 bytes, 1MB is 1000KB and 1GB is 1000MB.
This always bugged me until I thought about the fact that it's actually a missuse of KB, MB & GB on the part of computers, not sellers. There's 1000 metres in a KM. There should be 1000 bytes in a KB.
In short, you can't get any extra out of it because it is the size they advertised.
thanks, you ask you learn
so after start-up, how much internal storage do you still have?
on average how much more storage space do you have after you install your essential apps.
i think im still going to need an external memory card, but if theres enough on board, i won't need as high of a capacity
the storage space varies from 2 GB to 16 GB depending on the model you purchased
Hello all,
did anyone calculated memory in our Notes?
2Gb - / "system disk"
11Gb - /mnt/sdcard
But we should have 16Gb. So, 3Gb is missing. Where is it ?
When 16 GB is indicated it's never the full 16GB, the same goes for 32GB...64GB....ext, they always round up to the nearest increment. It is deceptive, but that's just how they do it with solid state memory.
Spartan2x said:
When 16 GB is indicated it's never the full 16GB, the same goes for 32GB...64GB....ext, they always round up to the nearest increment
Click to expand...
Click to collapse
.
Rounding ?! 13Gb <> ~16Gb
pavelbor said:
.
Rounding ?! 13Gb <> ~16Gb
Click to expand...
Click to collapse
Yep. When the last time you saw increments other then 4,8,16,32,64,128...for solid state memory.
when manufactures advertise 16gb, theyre going as in 16,000,000,000Bytes. but most OS will read it in terms of binary, and the nearest number to 1000 is 1024 (i suck at phrasing).
so 16,000,000,000bytes divided by 1024bytes per kb = 15625000kb divided by 1024kb/mb = 15258.8mb divided by 1024mb/gb = 14.9 gigabytes. now subtract the 2gb for the apps partition and thats 12.9gb. now i dont know too much about the little things to do with android/linux, but i would assume that maybe 1gb or so would be reserved for the android OS itself, or some of it is used as virtual memory.
So I bought a 16 GB SD card and I formatted it on my s4 now it's only 14.7 GB
almacncheese said:
So I bought a 16 GB SD card and I formatted it on my s4 now it's only 14.7 GB
Click to expand...
Click to collapse
Have you ever experienced that moment where you insert
your 16GB memory card into the camera only to discover
that this new, freshly formatted card is a nickel short of
15GB? Or a 32GB card turning to 29.8GB once installed?
Have you ever wondered where those GigaBytes are hiding?
The truth is that they are not hiding at all.
It has to do more with the way card companies (and hard
drive companies too) decide to annotate their products.
In English Kilo means one thousand (1000 1 = 1,000), a
Mega is a million (1,000 2 = 1,000,000) , a Giga is a billion
(1,000 3 = 1,000,000,000) and so on (Tera, Peta, Exa, Zetta &
Toyya). This system is called the SI units system .
In Computerish, however, the numbers are a bit different: A
Kilo means 1,024 1 = 1,024, a Mega is 1,024 2 = 1,048,576, a
Giga is 1024 3 = 1,073,741,824 and so on. This is called the
Binary units system.
So there is a difference in what Kilo, Mega and Giga means
and that difference is getting bigger the "stronger" the prefix
is.
For Kilo, the difference is only 2.3%, for Mega it is 4.6% and
for Giga it is 6.8% - see a pattern here?
Back to the memory cards.
Memory cards manufactures choose to use the SI system to
denote cards sizes. Our computers and card readers use
the binary system for size calculation and here is where the
missing Bytes are.
Of course, the card companies are covered, they do mention
this fact on their sites (in a small asterisk, or with hover text
that is revealed when you hover over a small asterisk). Here
are screen shots from three leading cards and hard drive
manufacturers, though they are not the only one to use that
practice:
Sandisk:
Lexar:
Seagate:
If you followed the math, you probably realized that the toll
this calculation method in taking gets bigger the bigger the
data units are. So while the toll on a 1GB memory card in
way smaller than on a 1 tera hard drive. Have a look at this
table to sum things up:
Size SI
units size
Binary
Size
Delta
(%)
Delta
(GB)
512 Mega 536870912 512000000 4.6 0.02
4 Giga 4294967296 4000000000 6.9 0.27
16 Giga 17179869184 16000000000 6.9 1.10
64 Giga 68719476736 64000000000 6.9 4.40
1 Tera 1,099,511,627,776 1,000,000,000,000 9.1 92.68
4 Tera 4,398,046,511,104 4,000,000,000,000 9.1 370.71
1 Peta 1,125,899,906,842,620 1,000,000,000,000,000 11.2 117253.43
Now What?
Now, I think it would be fair if we politely asked memory
card makes and hard drive makers to switch to binary so
they will be better aligned with the way we use them.
almacncheese said:
So I bought a 16 GB SD card and I formatted it on my s4 now it's only 14.7 GB
Click to expand...
Click to collapse
There's always a disclaimer *formatted capacity less* so this is normal
Sent from my SPH-L720 using xda app-developers app