This research is motivated by the lack of interesting learning media innovations in computer and network engineering learning, especially operating systems and the difficulties of some students in understanding the material and practice as well as the lack of student interest in learning operating systems. This research has the aim of developing learning media in the form of an Operating System Learning Media application with the introduction of open source and open source operating systems for students at SMK 1 Touluan. This research is a research and development (R&D) that uses the MDLC development model. The stages have 6 stages, namely: Concept (Conception), Design (Design), Obtaining Content Material (material collection), Assembly (manufacture), Testing (Testing), and Distribution (Distribution), but at this stage it is only carried out until the fifth stage., namely Testing. The results of the research obtained are the creation of mobile and website-based learning media products in SMK in Southeast Minahasa district in this case at SMK N 1 Touluan.