What is the purpose of user account types such as Administrator and Standard User?

User account types, such as Administrator and Standard User, serve to define the permissions and access levels of users within a system. An Administrator account typically has elevated privileges, allowing the user to install software, change system settings, and access all files on the machine. This level of control is necessary for system maintenance and configuration tasks. In contrast, a Standard User account has limited permissions, which helps protect the system from unwanted changes and enhances security. By restricting access to critical system functions, user account types help in maintaining the integrity and operational stability of the system.

The other options focus on aspects that are not the primary defining characteristics of user account types. While restrictions on network connections and application installations can be related to permission levels, they are specific functions rather than the overall purpose of account types. Visual themes, while customizable, do not reflect the security or access contexts that user account types are fundamentally designed to manage.