Limited-feature operating system

Definition
A limited-feature operating system is

"designed specifically for the mobile environment where battery life and power efficiency are primary design drivers (e.g. Apple iOS, Android, Windows RT/Phone, Blackberry OS, etc.). These operating systems permit limited user control, but are inherently more resistant than a full-feature operating system to certain types of network based technical attacks due to the limited feature sets. Devices using these operating systems are required to be managed by a mobile device management solution."