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CBASIC Lesson 1 Introduction and version history

of Acoptex.com in Csharp

CBASIC Learning C# basics

Tags: C#, Csharp, C# fundamentals, C# basics

These lessons are designed to keep you engaged with the process of learning C# basics. Our main focus will be on learning C# basics.

Lesson 1 Introduction and version history

C# is a simple & powerful object-oriented programming language developed by Microsoft and approved by European Computer Manufacturers Association (ECMA) and International Standards Organization (ISO). C# can be used to create various types of applications, such as web, windows, console applications or other types of applications

C# was developed by Anders Hejlsberg and his team during the development of .Net Framework.

C# is designed for Common Language Infrastructure (CLI), which consists of the executable code and runtime environment that allows use of various high-level languages on different computer platforms and architectures.

So, how did the C# language appear? Let's see below:

1. C language was created by Dennis MacAlistair Ritchie, an American computer scientist, in 1972.

2.In 1979, Bjarne Stroustrup, a Danish computer scientist, began work on "C with Classes", the predecessor to C++. In 1983, "C with Classes" was renamed to "C++"

3.James Gosling, Mike Sheridan, and Patrick Naughton initiated the Java language project in June 1991. Sun Microsystems released the first public implementation as Java 1.0 in 1996.

4. In January 1999, Anders Hejlsberg formed a team to build a new language at the time called Cool, which stood for "C-like Object Oriented Language". Microsoft had considered keeping the name "Cool" as the final name of the language, but chose not to do so for trademark reasons. By the time the .NET project was publicly announced at the July 2000 Professional Developers Conference, the language had been renamed C#, and the class libraries and ASP.NET runtime had been ported to C#.C# has evolved much since its first release in 2002. C# was introduced with .NET Framework 1.0 and the current version of C# is 7.0.

The following table lists important features introduced in each version of C#:

Version	.NET Framework	Visual Studio	Important Features
C# 1.0	.NET Framework 1.0/1.1	Visual Studio .NET 2002	Basic features
C# 2.0	.NET Framework 2.0	Visual Studio 2005	Generics Partial types Anonymous methods Iterators Nullable types Private setters (properties) Method group conversions (delegates) Covariance and Contra-variance Static classes
C# 3.0	.NET Framework 3.0\3.5	Visual Studio 2008	Implicitly typed local variables Object and collection initializers Auto-Implemented properties Anonymous types Extension methods Query expressions Lambda expressions Expression trees Partial Methods
C# 4.0	.NET Framework 4.0	Visual Studio 2010	Dynamic binding (late binding) Named and optional arguments Generic co- and contravariance Embedded interop types
C# 5.0	.NET Framework 4.5	Visual Studio 2012/2013	Async features Caller information
C# 6.0	.NET Framework 4.6	Visual Studio 2013/2015	Expression Bodied Methods Auto-property initializer nameof Expression Primary constructor Await in catch block Exception Filter String Interpolation
C# 7.0	.NET Core	Visual Studio 2017	out variables Tuples Discards Pattern Matching Local functions Generalized async return types throw Expressions