说明：  In order to thoroughly understand what makes Linux tick and why it works so well on a wide variety of systems, you need to delve deep into the heart of the kernel. The kernel handles all interactions between the CPU and the external world, and determines which programs will share processor time, in what order. It manages limited memory so well that hundreds of processes can share the system efficiently, and expertly organizes data transfers so that the CPU isn t kept waiting any longer than necessary for the relatively slow disks.
(In order to thoroughly understand what mak es Linux tick and why it works so well on a wide var iety of systems, you need to delve deep into the heart of the kerne l. The kernel handles all interactions between the CPU and the external world, and determines which programs will share proce ssor time, in what order. It manages limited memory so well that hundreds of processes can share the system efficiently. and expertly organizes data transfers so that t he CPU is not kept waiting any longer than necessa ry for the relatively slow disks.)