What is a custom os?

A custom operating system (OS) is a type of computer operating system that has been specifically designed for a particular hardware platform, software application or device. Custom OS usually configured, optimized and streamlined for specific hardware, software, and usage requirements. A custom OS might offer unique user interface or features that aren’t found in regular operating systems. It may be open source or proprietary.

Custom OS is mainly used for small embedded systems, game consoles, smartphones, tablets, and other specialized devices. Such Operating Systems are tailored to meet the specific needs of the device's hardware and software and are highly efficient in terms of resource management, performance, and security.

A custom OS provides fine-grained control over hardware and software, and security features to protect the device and its data. Developers of custom OS sometimes provide regular bug fixes, updates, and other security patches. Custom OS can offer a higher level of privacy and customization options, however, can also come with several drawbacks like weak security, limited support, and compatibility issues with third-party apps.