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You can not send songs from iphone, that are stored in itunes
That depends on the storage of your iPhone
When you delete a backup on your iPhone 6, the stored data and settings from that backup are permanently removed from iCloud or your computer, depending on where the backup was saved. This means you will no longer be able to restore your iPhone to that specific state if needed in the future. However, this action does not affect the current data on your iPhone; it only removes the backup file. Always ensure you have the necessary data saved elsewhere before deleting a backup.
stored data is data that gets placed in different places on a computer but there is different types of stored data
data is stored in RAM modules
Document & Data on iPhone are junks files including browser history, cookies, logs, caches of photos and videos, database files stored by your apps. You'll notice that some apps while being very small themselves have accumulated a lot of data. An example of this is shown in the image below, you see that the Facebook app is 109 MB whereas the Documents & Data stored is 1.2 GB. This 1.2 GB is what goes into your "Other" data. These apps on iPhone don't provide a way to delete Documents and Data, uninstalling and reinstalling the app is not the best option here. You can use CleanMyPhone or PhoneClean to delete the documents and data without deleting the app itself.
Actually, It doesnt. 'Cause its the purpose of backing up the data. After the update, Your iphone will restore then it will put back your old data.
Data is stored on the hard disc. The more memory hard disc has the more data can be stored.
how data are stored would be in a physical layer
You can easily transfer contacts from an iPhone to a Samsung Galaxy Tab using MobiKin Transfer for Mobile. Here's how: Install and launch MobiKin Transfer for Mobile on your computer. Connect both your iPhone and Samsung Tab via USB. Set iPhone as the source and Samsung as the destination. Check Contacts, then click Start Copy. That's it! Your contacts will be transferred in minutes—no SIM card or cloud needed.
Data Type indicates the type of data that can be stored in a field.
Take it to the shop where you purchased the iPhone and get them to do it for you.