1. 1970s * Pascal:
Created by Niklaus Wirth in 1970. Pascal, named in honor of the French mathematician and philosopher Blaise Pascal, was developed by Niklaus Wirth. Its main purpose was to teach people how to the basics of structured programming. * C:
C was originally developed by Dennis Ritchie between 1969 and 1973 at AT&T Bell Labs, and used to implement the Unix operating system. He created the C language there was the B language, which was created by Ken Thompson in 1969-70. Although the B language improved the systems it lacked use of structure and didn’t know data types. So in 1971-73 Dennis Richie wrote the C language in which he kept the B syntax but added data types and other changes that needed to be made. 2. 1980s * Python: Python was conceived in the late 1980s and its implementation was started in December 1989 by Guido van Rossum at CWI in the Netherlands as a successor to the ABC programming language capable of exception handling and interfacing with the Amoeba operating system. Python teaches the user how to work with other languages, indentation, and modularity. It supports object – oriented, procedural, and functional program styles. C++ was also created and used many different types of computers.

3. 1990s: * VB 1.0 was introduced in 1991. The drag and drop design for creating the user interface is derived from a prototype form generator developed by Alan Cooper and his company called Tripod. Microsoft decided to combine Ruby with the Basic language to create Visual Basic. 4. 2000s: * C# (pronounced as see sharp) is a multi-paradigm programming language encompassing strong typing, imperative, declarative, functional, generic, object-oriented (class-based), and component-oriented programming disciplines. It was developed by Microsoft within its .NET initiative and later approved as a