John Ewart John Ewart is a system architect, software developer, and lecturer. He has designed and taught courses at a variety of institutions, including the University of California, The California State University, and local community colleges. These courses over a wide range of computer science topics, including Java, data structures and algorithms, operating systems fundamentals, Unix and Linux system administration, and web application development. In addition to working and teaching, he maintains and contributes to a number of open source projects. He currently resides in Redmond, Washington, with his wife, Mary, and their two children. Read More Read Less