An operating system architecture for a particular platform that includes all OS functions such as the file system, virtual memory manager, application interprocess communication and drivers.
With the latest release of Raspberry Pi OS (formerly Raspbian ... the change from the client-server-based X11 protocol to the monolithic Wayland protocol has a number of implications.
Companies like Valve, Lenovo, ASUS, GPD, and many others have begun mainstreaming the tech, inspired by the monolithic efforts ... Valve revealed that Steam OS, developed for the Steam Deck ...