C-based refers to programming languages that are derived from or influenced by the original C programming language. This includes languages like C++, C#, and Objective-C, which share similar syntax and concepts. These languages are widely used in software development due to their efficiency and control over system resources, making them suitable for applications ranging from operating systems to game development. The C language was developed in the early 1970s and has become a foundational language in computer science. Its influence extends beyond its direct descendants, as many modern languages incorporate C-like features. This legacy continues to shape programming practices and education today.