Operating Systems are the software that manage computer hardware and software resources, providing various services for computer programs. Coursera's Operating Systems catalogue teaches you about the fundamental principles of modern operating systems. You'll learn about process management, memory management, file systems, and I/O systems. You'll also delve into concepts around distributed systems, security, and systems programming. This knowledge will equip you for roles in systems engineering, software development, and data management, allowing you to effectively design, develop, and manage complex computing systems.