However, SeL4 can be used, in theory, as a foundation for Linux and other Unix related operating systems. For example, it was briefly considered for use in Richard M. Stallman's still-born Gnu Hurd ...

Modern CPUs can run in two modes: kernel mode and user mode. When a CPU runs in kernel mode, an extended set of instructions is allowed, as is free access to anywhere in memory and device registers.

Spend enough time around Android, or even PCs, and eventually, you will come across the term, “the Linux kernel.” Android uses the Linux kernel too. In fact, it’s an integral part of the way your ...