Current curricula of Computer Science are based mainly on commercial solutions. IOSCS project proposes development of innovative Computer Science courses which would be based on Open Source tools, i.e. on Open Software and Open Hardware solutions. Nowadays all of the consortium organizations are a little experienced with introducing such courses. The goal of IOSCS project is to develop 6 study courses, all of them based on Open Source approach, which then will be embedded into existing curricula. Developed courses will cover fields of programming, mathematics, operating systems, embedded systems, systems controlled by computer and other hardware and/or software applications. The results of IOSCS project will be: descriptions of the courses, materials necessary for lectures and practical classes, analysis of the new courses' implementation experiences during summer intensive courses and the handbook composed of the materials necessary to follow the courses by the students. Newly developed Open Source courses will be tested during summer intensive courses, in which students coming from consortium organizations will participate along with the university teachers who will try to deliver new contents and gather feedback. Finally, all the results will be publicly available on the website of the project and involved organizations as well as spread during International Conferences on Open Source tools in Computer Science university education, which will be held every year.