The history of quality assurance and software testing dates back to preindustrial societies, where ensuring quality wasn't a priority due to the absence of free market competition and strong governments. In the 19th century, with the advent of modern capitalism, assuring quality became important for attracting buyers. As software development evolved, programmers had to fulfill multiple goals, including debugging, configuration testing, and user-friendliness. Initially, small teams of programmers worked on ad hoc methods for finding bugs in their code. With the introduction of cross-platform programming languages like C and the PC market in the 1980s, configuration testing became more important. The increasing demand for frequent software releases and the growth of open source projects led to a need for better quality assurance and testing processes. Today, developers face new pressures with the advent of Continuous Delivery, mobile computing, and IoT devices, requiring sophisticated innovations like cloud-based testing and parallel testing to handle these changes.