<s>
Open	B-Operating_System
Music	I-Operating_System
System	I-Operating_System
(	O
OMS	O
)	O
was	O
a	O
virtual	B-General_Concept
studio	I-General_Concept
management	O
application	O
by	O
Opcode	O
for	O
the	O
Classic	O
Mac	O
OS	O
.	O
</s>
<s>
Similar	O
to	O
FreeMIDI	B-Application
by	O
Mark	O
of	O
the	O
Unicorn	O
and	O
Audio	O
MIDI	O
Setup	O
by	O
Apple	O
,	O
OMS	O
used	O
a	O
GUI	B-Application
to	O
manage	O
MIDI	O
devices	O
by	O
providing	O
DAW	B-General_Concept
applications	O
and	O
the	O
Mac	O
OS	O
with	O
information	O
regarding	O
the	O
physical	O
setup	O
of	O
MIDI	O
devices	O
connected	O
to	O
the	O
computer	O
.	O
</s>
