<s>
OS	B-Operating_System
2200	I-Operating_System
has	O
had	O
several	O
generations	O
of	O
compilers	O
and	O
linkers	O
in	O
its	O
history	O
supporting	O
a	O
wide	O
variety	O
of	O
programming	O
languages	O
.	O
</s>
<s>
In	O
the	O
first	O
releases	O
,	O
the	O
Exec	B-Application
II	I-Application
assembler	O
(	O
SLEUTH	O
)	O
and	O
compilers	O
were	O
used	O
.	O
</s>
<s>
The	O
modern	O
compiling	O
system	O
for	O
OS	B-Operating_System
2200	I-Operating_System
is	O
known	O
as	O
UCS	O
,	O
Universal	O
Compiling	O
System	O
.	O
</s>
<s>
The	O
UCS	O
system	O
was	O
developed	O
starting	O
in	O
1969	O
and	O
initially	O
included	O
PL/I	B-Language
and	O
Pascal	B-Application
.	O
</s>
<s>
FORTRAN	B-Application
and	O
COBOL	B-Application
were	O
soon	O
added	O
.	O
</s>
<s>
Ada	B-Language
was	O
added	O
later	O
.	O
</s>
<s>
The	O
currently	O
supported	O
languages	O
include	O
COBOL	B-Application
,	O
FORTRAN	B-Application
,	O
C	B-Language
,	O
and	O
PLUS	O
.	O
</s>
<s>
PLUS	O
,	O
Programming	O
Language	O
for	O
Unisys	O
(	O
originally	O
UNIVAC	O
)	O
Systems	O
,	O
is	O
a	O
block	O
structured	O
language	O
somewhat	O
similar	O
to	O
Pascal	B-Application
which	O
it	O
predates	O
.	O
</s>
<s>
Previous	O
PLUS	O
,	O
COBOL	B-Application
and	O
FORTRAN	B-Application
compilers	O
are	O
also	O
still	O
supported	O
.	O
</s>
<s>
An	O
even	O
earlier	O
FORTRAN	B-Application
compiler	O
(	O
FORTRAN	B-Application
V	O
)	O
,	O
while	O
no	O
longer	O
supported	O
,	O
is	O
still	O
in	O
use	O
for	O
an	O
application	O
developed	O
in	O
the	O
1960s	O
in	O
that	O
language	O
.	O
</s>
<s>
Compilers	O
previously	O
existed	O
for	O
ALGOL	B-Language
,	O
Simula	B-Language
,	O
BASIC	O
,	O
Lisp	B-Language
,	O
NELIAC	B-Language
,	O
JOVIAL	B-Language
,	O
and	O
other	O
programming	O
languages	O
that	O
are	O
no	O
longer	O
in	O
use	O
on	O
the	O
ClearPath	O
OS	B-Operating_System
2200	I-Operating_System
systems	O
.	O
</s>
<s>
OS	B-Operating_System
2200	I-Operating_System
provides	O
a	O
complete	O
Java	B-Language
environment	O
.	O
</s>
<s>
Java	B-Language
on	O
OS	B-Operating_System
2200	I-Operating_System
has	O
evolved	O
from	O
an	O
interesting	O
additional	O
capability	O
for	O
small	O
servlets	O
and	O
tools	O
to	O
a	O
full	O
environment	O
capable	O
of	O
handling	O
large	O
applications	O
.	O
</s>
<s>
The	O
Virtual	O
Machine	O
for	O
the	O
Java	B-Language
Platform	O
on	O
ClearPath	O
OS	B-Operating_System
2200	I-Operating_System
JProcessor	O
is	O
a	O
Linux	B-Application
port	O
of	O
the	B-Application
Oracle	I-Application
Corporation	I-Application
Java	B-Language
release	O
.	O
</s>
<s>
The	O
environment	O
includes	O
a	O
full	O
J2EE	B-Language
application	O
server	O
environment	O
using	O
the	O
Tomcat	B-Language
open	O
source	O
web	O
server	O
from	O
the	O
Apache	O
Software	O
Foundation	O
and	O
the	O
JBoss	B-Language
application	I-Language
server	I-Language
.	O
</s>
<s>
All	O
of	O
this	O
has	O
been	O
integrated	O
with	O
the	O
OS	B-Operating_System
2200	I-Operating_System
security	O
,	O
databases	O
,	O
and	O
recovery	O
environment	O
.	O
</s>
