History and overview of distributed systems. Fundamentals of distributed systems and algorithms. Problems, methodologies, paradigms and models necessary for understanding and designing distributed applications. Topics may include: system models, process communication, distributed shared memory, web services, fault tolerance, real/logical/virtual time, distributed algorithms, authentication and security, naming, object-oriented structuring of distributed systems, distributed file systems, communication support for distributed systems. Theoretical concepts will be complemented with practical examples.