C0
C0 is a programming language developed by the French computer scientist Jean Ichbiah in the early 1970s. It is a high-level language designed for systems programming, and it was one of the first languages to introduce the concept of abstract data types. C0 is a precursor to the more well-known C programming language, which was developed by Dennis Ritchie at Bell Labs in the early 1970s. C0 was designed to be a simpler and more structured version of C, with a focus on readability and maintainability. It introduced several features that would later become standard in C, such as the use of the semicolon to terminate statements and the use of the equals sign for assignment. C0 was used primarily for teaching and research purposes, and it had a significant influence on the development of the C programming language. Despite its historical significance, C0 is not widely used today, and it has largely been superseded by C and other modern programming languages.