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Available storage space?

This is a discussion on Available storage space? within the iPad FAQ forums, part of the Apple iPad Discussions category; [QUOTE=AbblePC;1619] At home I add things to the iDisk as well but also use the Drop Box on my iMac for docs I want to ...

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  1. #11
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    [QUOTE=AbblePC;1619]
    At home I add things to the iDisk as well but also use the Drop Box on my iMac for docs I want to get to while on the road. The Drop Box service also has an app for the iPhone and syncs across computers as well as shares to friends, which Apples iDisk allows that too.
    QUOTE]


    This is something I'm curious about too. I have MobileMe and plan to store some of my movies on my iDisk. How can I access these remotely from my iPad?

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  3. #12
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    Disregard my last post. I figured it out. I just found the mobileme iDisk app in the iphone app store. I'm testing it out on my iphone right now to see how feasible it'll be to use iDisk it for extra iPad storage. I have some music and photos uploaded to iDisk from my mac. I just tried to download a song from iDisk to my iphone. It was very very slow over 3g, but it should do the trick for giving me extra storage for movies and music.

  4. #13
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    Quote Originally Posted by AbblePC View Post
    If looking at the 32G version of iPhone is any indication.

    Itunes reports available capacity - any user installed data is = to about 29.3G meaning that much of the OS etc is about 3Gig of data.
    Sorry, that's actually not how it works

    In computing, we use bytes as a measure of storage (one byte is 8 bits- a bit being symbolically either a 0 or 1).

    Because we use powers of two however, 1 kilobyte (KB)= 1024 bytes (2^10 bytes), 1 megabyte (MB) = 1024 kbytes, 1 gigabyte (GB) = 1024 mbytes.

    Hence 1 GB = 1024*1024*1024 = 1 073 741 824 bytes.

    But in other fields, the prefix 'giga' just means "1 billion"- and that's what all the companies use. Makes sense, it's easier to remember for most people. Plus, that results in a bit more of storage, so it's convenient for them. Computers however consider that 1 GB = 1024 MB.

    The 32 GB ipad has 32 billion bytes of storage, but your computer will use the aforementionned method of calculating storage, which results in:

    32 000 000 000 / 1 073 741 824 = 29.8 GB.

    iTunes shows 29.3 GB available out of these 29.8 GB, hence the OS takes about 0.5 GB, which is 500 MB.

    So a 16 GB iPad will have:

    16 000 000 000 / 1 073 741 824 = 14.9 GB.

    If we substract about 500 MB for the OS (the iPad's OS shouldn't be significantly bigger than the iPhone's/iPod touch's), that's 14.4 GB.

    And on a 64GB ipad:

    16 000 000 000 / 1 073 741 824 = 59.6 GB, minus 500 MB = 59.1 GB.

    Hope that made things a bit more clear



    If you want to put 5 movies on it for a road trip with the kids, some books and pictures and podcasts and some audio books and music and don't want to have unload this and reload this, 64 gigs is not enough.

    And this is even without any e magazines, e newspapers or whatever someone dreams up in the next 3 years.
    I think you're exagerating a bit there. A movie at full iPad res takes about 1.5 GB (I already started encoding my high res movies ).

    So 5 movies = 7.5 GB.
    Now if you want to put 150 albums of music, considering 100 MB per album (which would be pretty well encoded music, more often it's about 60 MB per album), that's 15 GB.
    Add about 1 GB of podcasts (that's about 15 hours worth of podcasts), and 1 GB of applications (again, an overestimation).

    That gives us a total of 7.5 + 15 + 1 + 1 = 24.5 GB taken out of the 64GB iPad's 59.

    34.5 GB left, or 40% of the iPad filled up. That's a lot of space left. And e-magazines, etc. won't take that much space compared to a movie, for isntance.

    So yes, I think 64GB will definitely be enough for most people. :P

  5. #14
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    Quote Originally Posted by Guillaume View Post
    Quote Originally Posted by AbblePC View Post
    If looking at the 32G version of iPhone is any indication.

    Itunes reports available capacity - any user installed data is = to about 29.3G meaning that much of the OS etc is about 3Gig of data.
    Sorry, that's actually not how it works

    In computing, we use bytes as a measure of storage (one byte is 8 bits- a bit being symbolically either a 0 or 1).

    Because we use powers of two however, 1 kilobyte (KB)= 1024 bytes (2^10 bytes), 1 megabyte (MB) = 1024 kbytes, 1 gigabyte (GB) = 1024 mbytes.

    Hence 1 GB = 1024*1024*1024 = 1 073 741 824 bytes.

    But in other fields, the prefix 'giga' just means "1 billion"- and that's what all the companies use. Makes sense, it's easier to remember for most people. Plus, that results in a bit more of storage, so it's convenient for them. Computers however consider that 1 GB = 1024 MB.

    The 32 GB ipad has 32 billion bytes of storage, but your computer will use the aforementionned method of calculating storage, which results in:

    32 000 000 000 / 1 073 741 824 = 29.8 GB.

    iTunes shows 29.3 GB available out of these 29.8 GB, hence the OS takes about 0.5 GB, which is 500 MB.

    So a 16 GB iPad will have:

    16 000 000 000 / 1 073 741 824 = 14.9 GB.

    If we substract about 500 MB for the OS (the iPad's OS shouldn't be significantly bigger than the iPhone's/iPod touch's), that's 14.4 GB.

    And on a 64GB ipad:

    16 000 000 000 / 1 073 741 824 = 59.6 GB, minus 500 MB = 59.1 GB.

    Hope that made things a bit more clear



    If you want to put 5 movies on it for a road trip with the kids, some books and pictures and podcasts and some audio books and music and don't want to have unload this and reload this, 64 gigs is not enough.

    And this is even without any e magazines, e newspapers or whatever someone dreams up in the next 3 years.
    I think you're exagerating a bit there. A movie at full iPad res takes about 1.5 GB (I already started encoding my high res movies ).

    So 5 movies = 7.5 GB.
    Now if you want to put 150 albums of music, considering 100 MB per album (which would be pretty well encoded music, more often it's about 60 MB per album), that's 15 GB.
    Add about 1 GB of podcasts (that's about 15 hours worth of podcasts), and 1 GB of applications (again, an overestimation).

    That gives us a total of 7.5 + 15 + 1 + 1 = 24.5 GB taken out of the 64GB iPad's 59.

    34.5 GB left, or 40% of the iPad filled up. That's a lot of space left. And e-magazines, etc. won't take that much space compared to a movie, for isntance.

    So yes, I think 64GB will definitely be enough for most people. :P
    Agreed....as for storage...the OS is stored on a flash device that is seperate from the storage flash...so when you get the 64GB you get 64GB...Mac recently started actually calculating differently tho and calling 64,000MB to be 64GB....so if you mount it to a Mac it will in fact say you have 64GB but on a windows machine it will say about 60GB...it really is arbitrary....you are getting 64,000MB tho.

  6. #15
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    so if you mount it to a Mac it will in fact say you have 64GB but on a windows machine it will say about 60GB
    But a file that is 1 MB on a computer that uses (2^10) measurements will be 1 048 576 bytes on a computer that uses the (10^3) measurement. So in the end you can store the exact same amount of data, no matter which computer you use.

  7. #16
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    Quote Originally Posted by Guillaume View Post
    so if you mount it to a Mac it will in fact say you have 64GB but on a windows machine it will say about 60GB
    But a file that is 1 MB on a computer that uses (2^10) measurements will be 1 048 576 bytes on a computer that uses the (10^3) measurement. So in the end you can store the exact same amount of data, no matter which computer you use.
    Right, it's a matter of perception. They decided to do that because people don't understand the conversion..and since HDDs are now rated in GBs people get confused when they buy a 500GB hard drive and see it actually only has 488GB (because they didn't buy a 500GB hard drive they bought a 500,000MB hard drive...as stated in the fine print.)

    Now that drive will come up as 500GB...you haven't actually gained anything you are just viewing it differently.

    Like when people installed SL the first time a lot of people thought they gained about 30GB of space....it was all in how it was displayed...SL was a little slimmer than leopard...but only by a couple GB.

  8. #17
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    Exactly

    SL was a little slimmer than leopard...but only by a couple GB.
    It's noteworthy that a couple GB is still significant for an OS that is between 5 and 10 GB in the first place.

    For those wondering, Snow Leopard managed to be slimmer than Leopard by compressing a lot of data from the OS (such as the standard applications - ie. Mail, Calendar, etc.).

    In modern computers, it's faster to load smaller compressed data to RAM and uncompress it there than load a bigger amount of data to RAM.

    That's because CPU speed (doing the uncompression) has increased dramatically over time, whereas hard drive speed (from where the data is loaded- the more data you load, the more time it takes) has been pretty much the same for a few years now.

  9. #18
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    Quote Originally Posted by Guillaume View Post
    Exactly

    SL was a little slimmer than leopard...but only by a couple GB.
    It's noteworthy that a couple GB is still significant for an OS that is between 5 and 10 GB in the first place.

    For those wondering, Snow Leopard managed to be slimmer than Leopard by compressing a lot of data from the OS (such as the standard applications - ie. Mail, Calendar, etc.).

    In modern computers, it's faster to load smaller compressed data to RAM and uncompress it there than load a bigger amount of data to RAM.

    That's because CPU speed (doing the uncompression) has increased dramatically over time, whereas hard drive speed (from where the data is loaded- the more data you load, the more time it takes) has been pretty much the same for a few years now.
    Yup...I am still very happy with Snow Leopard...it was a major step forward....

  10. #19
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    most is the operative word here

    So yes, I think 64GB will definitely be enough for most people. :P[/QUOTE]

    I have never met a computer I could not clutter up, I am sure the iPad will be no different.

  11. #20
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    Oh definitely, I'm the same. I have about 1.5 terabytes of data right now. But on mobile devices such as the iPad, it's all about choosing what you're putting on there :P


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