Chip has over forty years of programming experience in various low- and high-level languages. He has used the Rexx language since 1980 and has written several major applications in Rexx, including a VM/CMS emulator for AIX. He is active in the Rexx, Linux, and OS/2 computer users groups in the Research Triangle Park, and currently serves as President of the Rexx Language Association. Chip teaches Rexx, IBM Assembler, and a slew of UNIX courses for commercial clients around the country. An instrument-rated pilot, Chip flies his own plane to class locations, and helicopters for fun.