The purpose of this research is to develop learning package for an operating system course on process status for undergraduate students majoring in computer engineering. The technique of creating the cartoon story for difficult content is used to compare the process status and the steps of buying meals to enhance students’ understanding of process management. The participants are divided into two groups; the control group learning with the traditional method the experiment group learning with the learning package. The research result was that the achievement of the experimental group was higher than the control group. In addition the students were interested in learning and the students’ satisfaction is at the high level.