Before revision: Kernel A Unix kernel — the core or key components of the operating system — consists of many kernel subsystems like process management, scheduling, file management, device management and network management, memory management, dealing with interrupts from hardware devices.
After revision: Kernel A Unix kernel — the core or key components of the operating system — consists of many kernel subsystems like process management, scheduling, file management, device management ,and network management, memory management, dealing with interrupts from hardware devices.