Alexander McKenzie grew up in New Jersey. He attended the Stevens Institute of Technology studying math (because the math department had a computer). For his Master's degree at Stanford, McKenzie modified the Buroughs 5500 ALGOL compiler. Returning to the east coast, he worked for Honeywell in Massachusetts developing FORTRAN compilers. In the later1960s, he moved to Bolt Beranek and Newman where he first documented the Hospital Computer System, and then joined BBN's ARPANET IMP development project to help with outside contacts. In time, McKenzie became manager of BBN's ARPANET Network Operations Center. As part of BBN networking activities, he was active in the Network Working Group (NWG) and later in the International Network Working Group (INWG). For several years, McKenzie managed relations with various BBN network customers. In the later years of his career with BBN, McKenzie involved with various regional and other networks, for example, CSNET, NSFNET, and NEARNET.
ARPANET; Bolt, Beranek and Newman (BBN); International Working Group (INWG); CSNET; NSFNET; NEARNET; BBN Planet