ABSTRACT
This chapter focuses on some of the practical aspects of a digital logic system. It describes the different logic families and examines their characteristics. The chapter discusses practical constraints that must be observed when a logic system is put together. Interfacing the digital computer with the analogue world is an important area, and the chapter outlines the design of data converters for this purpose. Integrated circuit logic families can be divided into two broad groups: the bipolar and the metal oxide semiconductor (MOS) families. Both types are suited to integrated circuit manufacture. The two states are usually cut-off and saturation. In any practical application of a digital system, an interface with continuous or analogue processes is needed. This interface is achieved by using analogue to digital converters (ADCs) at the input and digital to analogue converters (DACs) at the output of a digital system.
