What does computer programming involve?

Computer programming fundamentally involves designing and implementing a computer program. This process is not limited to merely writing code; it includes several critical stages such as understanding user requirements, planning the program's architecture, writing the actual code, and finally, testing and debugging the program to ensure it functions correctly. Each of these steps is essential in creating a functional and efficient program that meets the needs it was designed for.

In contrast, the other options focus on narrower aspects of computing. For instance, merely implementing code does not encompass the entire scope of programming, which includes the design phase. Testing hardware components and networking computers refer to different areas of computer science, such as hardware engineering and network engineering, rather than the process of programming itself. This distinction highlights why the comprehensive nature of designing and implementing a computer program is the most accurate depiction of what computer programming entails.