Keeping a backup in your PC will help you to play safe when you accidentally lose your data. iPhone is the most secure smartphones but accidents can happen with most secure things too. So in safe hands, you should keep a copy of your iPhone storage to your computer.

When you have a backup of your iPhone to the computer, it is guaranteed that your data is safe and can be recovered in case of corruption or loss. If you will synchronize iCloud and iTunes, Then the computer protects user-generated data in a faster, complete more convenient and granular way.

If you accidentally lose important data to change your ios based device like as: iPhone, iTouch and jailbreaking. Then, it can be recommended that you can be taking regular backup of your device. Because in case of data loss your data save on backup devices. Unfortunately, only in this way you can restore the data when you lost them.