The Department of Computer Science’s master’s program is suitable both for those who wish to improve their professional competence in computer science and for those who seek to prepare for further graduate study. The program offers three different tracks (thesis, project, and coursework-only) that enable individuals to customize their studies to match their particular ambitions and experiences. Computer-science classes at Brown are taught by the same professors who have earned our department’s reputation for innovative education and research. The department has expertise in a variety of areas of computer science, including algorithms and data structures, artificial intelligence, automated reasoning and planning, brain-machine interfaces, computational biology, computer security, cryptography, database management systems, distributed systems and ubiquitous computing, electronic commerce and agents, graphics and visualization, human-computer interaction, nanotechnology, natural language processing, networking, operating systems, operations research and constraint programming, programming languages, robotics and computer vision, software engineering, and stream processing. A Master’s degree normally requires three to four semesters of full-time study, depending upon one’s preparation. One is considered a full-time student if one takes at least two courses per semester.