C# is a computer language that can be used to create various types of applications, including desktop, Windows Forms, communication, and web-based, etc.

This series of lessons explores the fundamentals of the C# language, namely console applications. The lessons mainly describe (only) the language. They don't focus on one particular type of application. They teach console applications because these are the most fundamental types of applications when learning C#.

These lessons don't assume any prior knowledge of the C# language. Also, the lessons and sections are consecutive. For example, a lesson 2 assumes that you went over lesson 1 and the lesson 2 may address issues prerequisite to lesson 3.