PDC, short for Program Design and Coding, is the process of planning, creating, and implementing computer programs. It involves breaking down complex problems into smaller, manageable tasks and designing a solution that can be translated into a programming language. PDC requires knowledge of programming languages, algorithms, data structures, and problem-solving skills. The goal is to create efficient and functional programs that meet the desired specifications. PDC encompasses various stages, including analyzing requirements, designing the program structure, coding the program using appropriate programming languages, and testing and debugging the program to ensure its functionality. It is a crucial step in software development and forms the foundation for creating reliable and high-performing computer programs.