Answer:
Here
Step-by-step explanation:
If you use a single user account on your computer, everyone will share the same application settings, files, and system permissions. Application Settings: When you use a single user account, everyone using the computer will use the same browser. Most programs will use different settings for each user account.User accounts also serve as a means for granting permissions, applying logon scripts, assigning profiles and home directories, and linking other working-environment properties to a user.
hope it helps ;P