PTY (pity) n. Pseudo TTY, a simulated TTY used to run a job under the
supervision of another job. PTYCON (pity-con) n. A program which
controls several jobs from a single terminal, with each subjob having
its own PTY. PTYJOB (pity-job) n. The job being run on the PTY. Also a
common general-purpose program for creating and using PTYs. This is
DEC and SAIL terminology; the MIT equivalent is STY.