The term “ZCOM” refers to the HP Advanced Communications Controller
(ACC) family of products. The ZCOM device (or terminal) definitions
are stored in a configuration file, which is used by the TTGEN program
each time it compiles a TTGEN configuration file. The ZDGEN program
is responsible for converting an ASCII editable file of definitions into
a binary device definition file. This allows new terminals to be defined
with a minimum of effort. It also provides flexibility in modifying the
operational details of existing terminals. The compiled file is
also used by ZCOM utility programs ZMNTR and ZTERM.