ABSTRACT
The signals in digital logic and computer systems are conveyed along individual electrical conductors and also using multiple wiring arrangements where several conductors are used to convey signals from one place to another in what is known as a bus system. As we will see in Chapter 4, the number of individual bus lines depends on the particular bus standard employed; however, signals on the individual lines, no matter what they are used for or how they are organised, can exist in only two basic states: logic 0 (‘low’ or ‘off’) or logic 1 (‘high’ or ‘on’).Thus information within a digital system is represented in the form of a sequence of 1s and 0s, known as binary data.
