The document outlines the key steps in implementing a computer program: 1) Source code is created using a programming language, which may contain syntax errors or logical errors. This code includes variables, control structures, and constants. 2) The source code is then compiled, which converts it to machine language, and linked, which integrates the code into a single program. 3) The program is executed, which may result in run-time errors and requires debugging. 4) Program maintenance includes documenting the program through comments or manuals.