Full-feature operating system

Definition
A full-feature operating system is a

"traditional operating system[] used by a standard desktop computer (e.g. Microsoft Windows, Apple OS X, LINUX/UNIX, etc.). These operating systems are generally open to user control and configuration and therefore require configuration management to properly secure, or "harden", these devices from malicious network based technical attacks (e.g. malware, spyware, hackers, etc.). These operating systems require traditional protection applications such as antivirus programs and personal firewalls."