<s>
Ruby	B-Language
Version	I-Language
Manager	I-Language
,	O
often	O
abbreviated	O
as	O
RVM	O
,	O
is	O
a	O
software	O
platform	O
for	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
designed	O
to	O
manage	O
multiple	O
installations	O
of	O
Ruby	B-Language
on	O
the	O
same	O
device	O
.	O
</s>
<s>
The	O
entire	O
Ruby	B-Language
environment	O
including	O
the	O
Ruby	B-Language
interpreter	O
,	O
installed	O
RubyGems	B-Application
(	O
gems	B-Application
)	O
,	O
and	O
documentation	O
is	O
partitioned	O
.	O
</s>
<s>
In	O
addition	O
to	O
MRI	B-Language
,	O
the	O
standard	O
Ruby	B-Language
interpreter	O
,	O
RVM	O
functions	O
as	O
an	O
installer	O
for	O
various	O
other	O
implementations	O
of	O
Ruby	B-Language
.	O
</s>
<s>
These	O
include	O
JRuby	B-Language
,	O
mruby	B-Application
,	O
MacRuby	B-Operating_System
,	O
IronRuby	B-Language
,	O
Maglev	B-Language
,	O
Rubinius	B-Application
,	O
Ruby	B-Language
Enterprise	O
Edition	O
,	O
Topaz	O
,	O
and	O
GoRuby	O
(	O
an	O
interpreter	O
optimized	O
for	O
code	O
golf	O
)	O
.	O
</s>
<s>
In	O
addition	O
,	O
RVM	O
supports	O
the	O
installation	O
of	O
patched	O
versions	O
of	O
MRI	B-Language
.	O
</s>
<s>
RVM	O
provides	O
features	O
for	O
organization	O
of	O
Ruby	B-Application
gems	I-Application
through	O
"	O
gemsets	O
"	O
,	O
collections	O
of	O
gems	B-Application
separated	O
by	O
a	O
namespace	O
and	O
associated	O
Ruby	B-Language
installation	O
.	O
</s>
<s>
An	O
alternative	O
to	O
using	O
the	O
.rvmrc	O
file	O
(	O
and	O
the	O
general	O
purpose	O
although	O
user-specific	O
.jrubyrc	O
)	O
and	O
its	O
format	O
is	O
use	O
of	O
the	O
.ruby-version	O
and	O
.ruby-gemset	O
files	O
,	O
which	O
are	O
compatible	O
with	O
other	O
ruby	B-Language
version	I-Language
managers	I-Language
,	O
such	O
as	O
RBenv	O
and	O
chruby	O
.	O
</s>
<s>
Additionally	O
,	O
using	O
.rvmrc	O
requires	O
trusting	O
to	O
prevent	O
execution	O
of	O
unauthorized	O
code	O
,	O
while	O
.ruby-version	O
does	O
not	O
.	O
</s>
