<s>
FreeGEM	B-Application
released	O
in	O
1999	O
is	O
a	O
windowing	B-Application
system	I-Application
based	O
on	O
Digital	O
Research	O
's	O
GEM	B-Application
which	O
was	O
first	O
released	O
in	O
1985	O
.	O
</s>
<s>
GEM	B-Application
stands	O
for	O
"	O
Graphics	B-Application
Environment	I-Application
Manager	I-Application
"	O
.	O
</s>
<s>
FreeGEM	B-Application
is	O
the	O
free	O
software/open	O
source	O
version	O
of	O
GEM	B-Application
developed	O
after	O
Caldera	O
Thin	O
Clients	O
released	O
the	O
GEM	B-Application
code	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
GPL-2.0-only	I-License
free	B-Application
software	I-Application
license	O
in	O
April	O
1999	O
.	O
</s>
<s>
Caldera	O
Thin	O
Clients	O
owned	O
the	O
source	O
code	O
to	O
GEM	B-Application
through	O
Caldera	O
's	O
purchase	O
of	O
the	O
remaining	O
Digital	O
Research	O
assets	O
from	O
Novell	O
on	O
23	O
July	O
1996	O
,	O
who	O
had	O
acquired	O
Digital	O
Research	O
in	O
June	O
1991	O
.	O
</s>
<s>
FreeGEM	B-Application
code	O
works	O
on	O
almost	O
every	O
version	O
of	O
DOS	B-Device
,	O
and	O
runs	O
on	O
almost	O
every	O
IBM	O
compatible	O
PC	O
.	O
</s>
<s>
One	O
can	O
download	O
all	O
the	O
FreeGEM	B-Application
binaries	O
and	O
source	O
code	O
in	O
one	O
package	O
through	O
the	O
OpenGEM	O
SDK	O
.	O
</s>
<s>
There	O
are	O
additional	O
FreeGEM	B-Application
resources	O
available	O
through	O
John	O
C	O
.	O
Elliott	O
's	O
GEM	B-Application
website	O
.	O
</s>
<s>
OpenGEM	O
is	O
a	O
popular	O
FreeGEM	B-Application
distribution	O
.	O
</s>
<s>
Other	O
distributions	O
include	O
Owen	O
's	O
FreeGEM	B-Application
Distribution	O
.	O
</s>
<s>
OpenGEM	O
is	O
a	O
non-multitasking	O
16-bit	B-Device
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
for	O
DOS	B-Device
.	O
</s>
<s>
It	O
is	O
an	O
extended	O
distribution	O
of	O
FreeGEM	B-Application
that	O
includes	O
features	O
of	O
the	O
original	O
Digital	B-Application
Research	I-Application
GEM	I-Application
.	O
</s>
<s>
OpenGEM	O
is	O
intended	O
to	O
provide	O
a	O
simple	O
to	O
install	O
and	O
use	O
GUI	B-Application
system	O
and	O
windowing	O
framework	O
for	O
the	O
FreeDOS	B-Application
operating	O
system	O
.	O
</s>
<s>
Caldera	O
Thin	O
Clients	O
(	O
later	O
known	O
as	O
Lineo	O
)	O
,	O
who	O
owned	O
the	O
source	O
code	O
to	O
GEM	B-Application
through	O
Caldera	O
's	O
purchase	O
of	O
the	O
remaining	O
Digital	O
Research	O
assets	O
from	O
Novell	O
on	O
23	O
July	O
1996	O
,	O
released	O
the	O
source	O
to	O
GEM	B-Application
under	O
the	O
terms	O
of	O
GPL-2.0-only	B-License
in	O
April	O
1999	O
.	O
</s>
<s>
OpenGEM	O
was	O
developed	O
by	O
Shane	O
Martin	O
Coughlan	O
in	O
collaboration	O
with	O
the	O
FreeGEM	B-Application
Developer	O
team	O
,	O
and	O
is	O
free	B-Application
software	I-Application
released	O
under	O
the	O
terms	O
of	O
the	O
GPL-2.0-only	B-License
.	O
</s>
<s>
OpenGEM	O
versions	O
3	O
through	O
6	O
are	O
hosted	O
on	O
SourceForge	O
and	O
on	O
the	O
FreeDOS	B-Application
website	O
.	O
</s>
<s>
OpenGEM	O
has	O
not	O
been	O
actively	O
developed	O
since	O
2008	O
but	O
is	O
feature-complete	O
as	O
a	O
basic	O
GUI	B-Application
and	O
includes	O
a	O
full	O
SDK	O
for	O
future	O
third-party	O
development	O
or	O
extension	O
.	O
</s>
<s>
OpenGEM	O
works	O
with	O
FreeDOS	B-Application
Beta	O
9	O
and	O
above	O
,	O
DR	O
DOS	B-Device
5.0	O
and	O
above	O
,	O
MS-DOS	O
3.3	O
and	O
above	O
,	O
PC	O
DOS	B-Device
3.3	O
and	O
above	O
,	O
REAL/32	B-Operating_System
,	O
and	O
DOSBox	B-Application
0.65	O
.	O
</s>
<s>
OpenGEM	O
will	O
function	O
on	O
Windows	B-Application
95	I-Application
,	O
Windows	B-Device
98	I-Device
,	O
Windows	O
98SE	O
,	O
and	O
Windows	B-Device
ME	I-Device
.	O
</s>
<s>
It	O
is	O
not	O
known	O
to	O
work	O
with	O
Windows	B-Device
NT	I-Device
,	O
Windows	B-Application
2000	I-Application
and	O
Windows	B-Application
XP	I-Application
or	O
later	O
.	O
</s>
