IT Basics. Applications

The paper IT Basics is organized in five chapters and it emphasizes on computer system architecture concepts. The paper contains numerous examples concerning: the theory of information transmission (information entropy, binary codes), data representation (numbering systems, binary arithmetic, IEEE floating point formats, BCD format) and computer logical organization (Boolean algebra, logic gates, combinational circuits). Chapter four describes basic CPU functionality by means of several assembly language programs. The last chapter presents a series of tests meant for auto evaluation.