<s>
GemStone/S	B-Operating_System
is	O
computer	O
software	O
,	O
an	O
application	B-Application
framework	I-Application
that	O
was	O
first	O
available	O
for	O
the	O
programming	O
language	O
Smalltalk	B-Application
as	O
an	O
object	B-Application
database	I-Application
.	O
</s>
<s>
It	O
is	O
proprietary	B-Application
commercial	B-Application
software	I-Application
.	O
</s>
<s>
GemStone	B-Operating_System
Systems	I-Operating_System
was	O
founded	O
on	O
March	O
1	O
,	O
1982	O
,	O
as	O
Servio	O
Logic	O
,	O
to	O
build	O
a	O
database	O
machine	O
based	O
on	O
a	O
set	O
theory	O
model	O
.	O
</s>
<s>
Servio	O
Logic	O
was	O
renamed	O
GemStone	B-Operating_System
Systems	I-Operating_System
,	O
Inc	O
.	O
in	O
June	O
1995	O
.	O
</s>
<s>
The	O
firm	O
developed	O
its	O
first	O
hardware	O
prototype	O
in	O
1982	O
,	O
and	O
shipped	O
its	O
first	O
software	O
product	O
(	O
GemStone	B-Operating_System
1.0	O
)	O
in	O
1986	O
.	O
</s>
<s>
GemStone	B-Operating_System
's	O
owners	O
pioneered	O
implementing	O
distributed	B-Architecture
computing	I-Architecture
in	O
business	O
systems	O
.	O
</s>
<s>
Many	O
information	O
system	O
features	O
now	O
associated	O
with	O
Java	B-Language
EE	I-Language
were	O
implemented	O
earlier	O
in	O
GemStone	B-Operating_System
.	O
</s>
<s>
GemStone	B-Operating_System
and	O
VisualWave	O
were	O
an	O
early	O
web	B-Application
application	I-Application
server	O
platform	O
.	O
</s>
<s>
(	O
VisualWave	O
and	O
VisualWorks	B-Application
are	O
now	O
owned	O
by	O
Cincom	B-Application
.	O
)	O
</s>
<s>
GemStone	B-Operating_System
played	O
an	O
important	O
sponsorship	O
role	O
in	O
the	O
Smalltalk	B-Application
Industry	O
Council	O
at	O
the	O
time	O
when	O
IBM	O
was	O
backing	O
VisualAge	B-Language
Smalltalk	B-Application
.	O
</s>
<s>
As	O
of	O
2005	O
,	O
Instantiations	O
acquired	O
the	O
world-wide	O
rights	O
to	O
the	O
IBM	B-Language
VisualAge	I-Language
Smalltalk	B-Application
product	O
and	O
has	O
rebranded	O
it	O
as	O
the	O
VAST	O
(	O
VA	O
Smalltalk	B-Application
)	O
Platform	O
.	O
</s>
<s>
After	O
a	O
major	O
transition	O
,	O
GemStone	B-Operating_System
for	O
Smalltalk	B-Application
continued	O
as	O
GemStone/S	B-Operating_System
and	O
various	O
C++	B-Language
and	O
Java	B-Language
products	O
for	O
scalable	O
,	O
multitier	B-Operating_System
architecture	I-Operating_System
distributed	B-Architecture
computing	I-Architecture
systems	O
evolved	O
into	O
the	O
GemStone/J	O
product	O
.	O
</s>
<s>
This	O
in	O
turn	O
gave	O
rise	O
to	O
GemFire	B-Application
,	O
an	O
early	O
example	O
of	O
a	O
Data	B-General_Concept
Fabric	I-General_Concept
for	O
complex	B-Operating_System
event	I-Operating_System
processing	I-Operating_System
(	O
CEP	O
)	O
,	O
event	B-Application
stream	I-Application
processing	I-Application
(	O
ESP	O
)	O
,	O
data	B-General_Concept
virtualization	I-General_Concept
,	O
and	O
distributed	B-Operating_System
caching	I-Operating_System
.	O
</s>
<s>
On	O
May	O
6	O
,	O
2010	O
,	O
SpringSource	B-Application
,	O
a	O
division	O
of	O
VMware	O
,	O
announced	O
it	O
had	O
entered	O
into	O
a	O
definitive	O
agreement	O
to	O
acquire	O
GemStone	B-Operating_System
.	O
</s>
<s>
On	O
May	O
2	O
,	O
2013	O
,	O
GemTalk	O
Systems	O
acquired	O
the	O
GemStone/S	B-Operating_System
platform	O
from	O
Pivotal	O
Software	O
(	O
the	O
EMC	O
and	O
VMware	O
spin-off	O
)	O
.	O
</s>
<s>
Gemfire	B-Application
remained	O
with	O
Pivotal	O
's	O
Big	B-Application
Data	I-Application
division	O
.	O
</s>
<s>
The	O
product	O
is	O
available	O
standalone	O
but	O
is	O
also	O
integrated	O
into	O
its	O
Cloud	B-General_Concept
Foundry	I-General_Concept
PaaS	B-Application
as	O
Pivotal	O
Cloud	O
Cache	O
.	O
</s>
<s>
GemStone	B-Operating_System
builds	O
on	O
the	O
programming	O
language	O
Smalltalk	B-Application
.	O
</s>
<s>
GemStone	B-Operating_System
systems	I-Operating_System
serve	O
as	O
mission-critical	O
applications	O
.	O
</s>
<s>
GemStone	B-Operating_System
frameworks	I-Operating_System
still	O
see	O
some	O
interest	O
for	O
web	O
services	O
and	O
service-oriented	O
architectures	O
.	O
</s>
<s>
GemStone	B-Operating_System
is	O
an	O
advanced	O
Smalltalk	B-Application
platform	O
for	O
developing	O
,	O
deploying	O
,	O
and	O
managing	O
scalable	O
,	O
high-performance	O
,	O
multi-tier	B-Operating_System
applications	I-Operating_System
based	O
on	O
business	O
objects	O
.	O
</s>
<s>
A	O
recent	O
revival	O
of	O
interest	O
in	O
Smalltalk	B-Application
has	O
occurred	O
as	O
a	O
result	O
of	O
its	O
use	O
to	O
generate	O
JavaScript	B-Language
for	O
e-commerce	O
web	O
pages	O
or	O
in	O
web	B-Application
application	I-Application
frameworks	I-Application
such	O
as	O
the	O
Seaside	B-Application
web	I-Application
framework	I-Application
.	O
</s>
<s>
Systems	O
based	O
on	O
object	B-Application
databases	I-Application
are	O
not	O
as	O
common	O
as	O
those	O
based	O
on	O
ORM	O
or	O
object-relational	B-General_Concept
mapping	I-General_Concept
frameworks	O
such	O
as	O
TopLink	B-Library
or	O
Hibernate	B-Library
.	O
</s>
<s>
In	O
the	O
application	B-Application
framework	I-Application
market	O
,	O
JBoss	B-Language
and	O
BEA	B-Language
Weblogic	I-Language
are	O
somewhat	O
analogous	O
to	O
GemStone	B-Operating_System
.	O
</s>
<s>
GemTalk	O
Systems	O
,	O
the	O
creator	O
of	O
Gemstone	B-Operating_System
,	O
also	O
has	O
a	O
series	O
of	O
products	O
under	O
the	O
GemBuilder	O
moniker	O
,	O
which	O
provide	O
an	O
interface	O
between	O
Smalltalk	B-Application
or	O
Java	B-Language
clients	O
and	O
Gemstone	B-Operating_System
databases	O
.	O
</s>
<s>
Versions	O
of	O
this	O
product	O
exist	O
for	O
VisualWorks	B-Application
Smalltalk	B-Application
,	O
VA	O
Smalltalk	B-Application
(	O
VAST	O
Platform	O
)	O
,	O
and	O
Java	B-Language
environments	O
.	O
</s>
