User
is an entity that has the right to use some resources, applications, equipment, process, or system. Operating systems and applications generally have users to authorize and authenticate their actions. Also, users are used to storing data personally in a private area like Home or Users.
Linux Users
Linux is an operating system and it has users to use the system resources via the operating system. Linux has root
user which has Administrator rights to change everything in Linux.
root User
root
user files are stored in the /root
path where the only root can access these files and folders.

Normal User
A normal Linux user may have whatever name he wants except root
. In this case, we can see the user ismail
home directory with the ls
command.

Windows User
Windows operating systems have also users for resources management. Administrator
is the highest level user where other users may have the same level of rights as some action. With modern Windows operating systems like Windows 10, the Administrator-level users are created after installation and no Administrator user is created by default. Below we can see that İsmail Baydan
is the Administrator user. We can use net user command with the user name to list user information from the command line like below.

Windows User directories are stored in the system partition where Windows is installed. This is generally the first partition of the system named C:\Users
directory like below.

Google User
Google users are used to login and store private information for all Google services like Search, Youtube, Gmail, Google Drive, Contacts, Android
etc. As we can see below there is a lot of information about a Google User like
- Privacy&Personalization
- SecurityAccount Storage
- Payment
- People&Sharing
