Access levels in computer security refer to the permissions granted to users or systems to access resources, data, or functionalities within a computer system. These access levels are essential for maintaining the confidentiality, integrity, and availability of information and resources. Depending on the security model and the specific needs of an organization, various types of access levels are implemented. Here are common types of access levels in computer security:

1. Administrator or Superuser:

   • Description: Also known as the "root" user in Unix/Linux environments, an administrator or superuser has unrestricted access to all system resources and configurations. This level of access is typically reserved for system administrators or IT personnel responsible for managing the entire system.

2. System or Network Administrator:

   • Description: System or network administrators have elevated privileges to manage and configure specific aspects of the system or network. They can install software, configure settings, and perform maintenance tasks. However, their access may be limited compared to the superuser.

3. User or Regular User:

   • Description: Regular users have standard access rights necessary for performing their designated tasks. They can access files, execute applications, and perform routine activities. However, their permissions are restricted compared to administrators.

4. Guest or Anonymous User:

   • Description: Guest or anonymous users typically have minimal access rights. They may be allowed to access certain resources with limited functionality and often do not have the ability to modify system configurations or access sensitive data.

5. Read-Only Access:

   • Description: Users with read-only access can view and retrieve information from a system or file but cannot make any modifications. This level of access is suitable for situations where information sharing is necessary but write or edit capabilities should be restricted.