There aren't much relationship to OS concepts. The lock question can be arguably related but it's more for concurrency. They are pretty light weight questions

There aren't much relationship to OS concepts. The lock question can be arguably related but it's more for concurrency. They are pretty light weight questions. OS questions would involve process/thread/fiber, scheduling, priority, multitasking, memory management, virtual memory, IPC, deadlock, distributed deadlock, interrupt/signal, input system, output system, GUI system, file system, disk system, IO caching, driver model, kernel space and user space, privilege and non-privilege operation, security model, user/process permission and privilege, file permission, authentication, authorization, etc.