The wires (nerves) on it transfer data between all of the other components.A new introduction has been prefixed to the third printing of the book.

Presentation of data in computer memory.Main processor is called the Central Processing Unit (CPU).Cache Memory When an instruction or data is accessed from main memory, it is placed in the cache.

After the introduction, we'll fade in the first scene.Component Interaction The CPU controls all of the other resources within the system, in order to accomplish a task.