1.
The local users accounts in macOS include the following:
*Administrator—Administrator user accounts are part of the admin group
and are allowed full access to all apps, preferences, and shared resource locations.
*Standard—Standard users are allowed to take advantage of nearly all the resources and features of a Mac, but they generally can’t change things that might affect other users.
*Managed with parental controls—A managed account is a standard account with parental controls enabled.
*Guest—The default guest account is similar to a standard user, but it doesn’t require a password. When a guest user logs out, the home folder is deleted, including any home folder items that would normally be saved, like preference files or web browser history.
*Sharing only—“Sharing only” accounts allow you to share files with someone on a different computer, but they can’t log in to your Mac.
*System Administrator (root)—The System Administrator account has unlimited access to almost everything on a Mac. It is turned off by default on macOS.
*Group—A group account is a list of user accounts that gives you greater control over file and folder access.