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Saturday 29 September 2012

Why Nexus devices have no Sdcard.

The online world is hard at work debating the merits from the Nexus 7 tablet, and the biggest arguments are about the possible lack of expandable storage, or an Sdcard, as you likely know the item. It seems like everyone and their brother carries a theory about why the hottest tablet going to Android so far will always be shipping without one. The most popular reason revolves around some conspiracy that Google would be to forcing you to use the cloud services. While I'm sure Google would love only users depending on Google Drive or Google Music -- and there's certainly a huge push for it -- that isn't the reason devices have been trending far from expandable storage.

Wanna know just what it is? Sure you do.

The possible lack of an SD card in Nexus equipment is nothing new, and we have been over this issue already if the Galaxy Nexus first appeared.

We got sick and tired with seeing OEMs include many GB connected with internal storage for music, while users were still running from space for apps and files. This approach lets us merge everything on one volume, which is way much better.

-- Dan Morrill, Android professional at Google

Google still sustains removable storage in Android, but it is leading by example in addition to providing phones (and now a new tablet) with one big prevent of storage that users may use for anything they like -- whether it be media, documents, or apps. There are a couple of side benefits to this approach as well. The first one is a bit geeky -- it allows it to use ext file systems instead of a mixture of ext and FAT. This is faster and safer -- both for your data on the device and also the way it's handled, and entry to our own personal data. Any journalized file system means a lesser number of file errors, and ext preserves file system permissions so randomly code can't find your photos or documents folder.

Another benefit is how the host machine (when your device is linked with a computer) can't muck factors up and molest the data file system, as it doesn't have block-level entry to the files. Instead, a proxy FUSE (Filesystem in Userspace) file system is utilized to mount a psuedo-SD card folder so that your computer can read and write into it via MTP. This means you simply won't get errors from incorrectly unmounting the phone, and the device still has entry to all the data even while connected to a PC.

Does Google want that you use Google Play and the cloud services? Of course it will. But there is no technique evil cabal in Mountain Check out that held back the Sdcard slot to force it on you. In fact, you're still free to use other cloud solutions including Amazon, Dropbox, or even a shared drive with your desktop PC. Nobody has to like the truth that Nexus devices ship with no Sdcard slot, but let's stop looking for conspiracies when we already know the answer.




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