<s>
Lites	B-Operating_System
is	O
a	O
discontinued	O
Unix-like	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
,	O
based	O
on	O
4.4BSD	B-Operating_System
and	O
the	O
Mach	B-Operating_System
microkernel	I-Operating_System
.	O
</s>
<s>
Specifically	O
,	O
Lites	B-Operating_System
is	O
a	O
multi-threaded	B-Operating_System
server	O
and	O
emulation	O
library	B-Library
that	O
provided	O
unix	O
functions	O
to	O
a	O
Mach-based	O
system	O
.	O
</s>
<s>
At	O
the	O
time	O
of	O
its	O
release	O
,	O
Lites	B-Operating_System
provided	O
binary	O
compatibility	O
with	O
4.4BSD	B-Operating_System
,	O
NetBSD	B-Device
,	O
FreeBSD	B-Operating_System
,	O
386BSD	B-Operating_System
,	O
UX	O
(	O
4.3BSD	O
)	O
,	O
and	O
Linux	B-Application
.	O
</s>
<s>
Lites	B-Operating_System
was	O
originally	O
written	O
by	O
Johannes	O
Helander	O
at	O
Helsinki	O
University	O
of	O
Technology	O
,	O
and	O
was	O
further	O
developed	O
by	O
the	O
Flux	O
Research	O
Group	O
at	O
the	O
University	O
of	O
Utah	O
.	O
</s>
