Online self-learning course about CSC Computing Environment Are you planning on using CSC services (Puhti, Mahti, Allas...) in near future? Have you been using these services already, but would like to make sure you are getting the most out of them? "This is what everyone should know about our HPC environment when launching jobs!" This online course consists of 10 topics focusing on using the CSC High Performance Computing environment, which has been tailored for researchers to be easy and efficient for scientific use. The CSC services (Puhti, Allas...) discussed in this course are free-of-charge for academic research, education and training purposes in Finnish higher education institutions and in state research institutes (subsidized by the Ministry of Education and Culture, Finland).