Systems programmers have knowledge of the entire computer system. Therefore, they may help applications programmers find the source of problems in their software programs. Much of the work of computer programmers involves updating, repairing, and modifying code for programs that have already been written. They keep records of their programming steps so that other programmers can work on the software. They test their work by running the program to see if it performs correctly.
Programmers identify and correct errors and test again.
They have other people test their programs. This allows them to obtain helpful comments and suggestions. Programmers may write instruction manuals to guide the program users. Computer Programmers is in the Engineering, Science, and Technologies Career Cluster.