This polycopy of courses is mainly intended for students in the first years common trunks of informatics (Inf), science and Technology (ST) and science of the Materials (SM) in the LMD field, in accordance with the official educational program. It is written in such a way as to provide a means of reference covering all the basic knowledge of physics of electrostatics and magnetism. The main purpose of this educational polycopy of courses is to provide the student with a clear and thorough presentation of of electricity module (physics2), and is reinforced by a set of exercises with detailed answers. The manuscript is divided into six chapters. The first chapter is devoted to the study of electrostatic phenomena and Coulomb’s Law, electric field and potential are analyzed in the second chapter. The third chapter deals with best Statement of Gauss’s Law. The properties of conductors in an electrostatic state and capacitors are analyzed in the fourth chapter. Electrokinetics, which concerns Kirchhoff's laws (Junction rule and Loop rule) and the circulation of current in electrical circuits, is carried out in the five chapter. The last chapter deals with the MAGNETOSTATIC. Finally, this work was carried out with great care and hopes that it will provide something more in the physics of electricity, and allow students to assimilate and understand this basic module.
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Objective of the course is to clearly explain the principle operating of the computer and give a detailed presentation of its architecture. So the objective of the course is to popularize all the basic concepts of a computer and offer some of the knowledge needed to understand how computers work, know the representation of numbers, understand what is a numeration system and clearly explain the operating principle of the computer. Among the main objectives of the course is to know the main components of a computer, understand the methods of synthesis of combinatorial and sequential logic systems and to acquire a knowledge of RAM and ROM Memories.

An operating System is a collection of system programs that together control the operations of a computer
system. It acts as an intermediary between a user of a computer and the computer hardware.
Some examples of operating systems are UNIX, Mach, MS-DOS, MS-Windows, MacOS, VM.....

In this course, we introduce the main concepts and basics of Unix operating system to students.