Genera is a commercial operating system and integrated development
environment for Lisp machines developed by Symbolics. It is
essentially a fork of an earlier operating system originating on the
Massachusetts Institute of Technology (MIT) AI Lab's Lisp machines
which Symbolics had used in common with Lisp Machines, Inc. (LMI),
and Texas Instruments (TI). Genera is also sold by Symbolics as Open
Genera, which runs Genera on computers based on a Digital Equipment
Corporation (DEC) Alpha processor using Tru64 UNIX.
the programming language Lisp.
software using a mix of programming styles with extensive support for
object-oriented programming.