Need clarification about android storage

[sammmurai]

Hi to all.
I need some clarification about Android storage, please.

How many storage units Android OS have? Including a possible microSD external Card.
Internal Storage, internal memory?! Whats the difference and location in file system folders?

When an app is installed from market where does it go?

In application manager, in most apps there is an option "Move to SD card"...
If I have an external micro SD Card and choose this apps option "Move to SD card" where the heck is suppose to going the app or some part of it? (Data? Apk? Cache?) It's not in external microSD Card! So what is "Move to SD Card".

I'm confused here need some expert (but simple) explanations.

Thanks.

 

[SebasCvdB]

Storage Units? Depends on the device i'll take the Samsung Galaxy S 3 for example it technically has 1, which is internal storage and varies from 16GB or 32GB but you can add a second one varying from 1GB up to 64 GB depending on memory card you are going to use.

Internal storage is where data / file systems etc. get saved majority of time it is just your Android Operating System and your installed Applications (App store downloads)
Internal memory refers to the RAM which functions just the same as on a regular computer.

When you download an app from the Market majority of the time it goes to the internal storage (system/app) folder but on some devices you can move the app to the SD card and run from there to save yourself internal storage for other things.

The Move to SD card option is more to "backup" your app onto your so called External memory card. The entire app is being moved to the external SD card and some devices can actually run the apps from the external SD card but some can't I guess that depends on if the manufacturer want to implement that or not. The cache part stays on the internal memory.

I know your going to have more questions but this is what I have for now.

 

[sammmurai]

Thanks for the reply.
You choose a good example because i have a galaxy note 10.1 and i think it have the same annoying limitation.
They have removed the functionallity "move to sd card".
Otherwise in other tablet i have when i "move to sd card" an app, it goes to /mnt/asec and not goes to external microsd card.
So im confused with the advantage of "move to sd card" and why they call sd card to an internal partition.

Thanks