CS262a is an introductory graduate course on computer systems research, including operating systems, database systems, and internet infrastructure systems.  The goal of the course is to cover a broad array of research topics in computer systems, and to engage students in top-flight systems research. A central aspect of the course is to consider key research themes in computer systems from multiple perspectives; to this end the course is team-taught by faculty from two different software systems disciplines. The class is based on lively discussion of important papers from the literature, and a research project.