<s>
BEAM	O
is	O
the	O
virtual	B-Architecture
machine	I-Architecture
at	O
the	O
core	O
of	O
the	O
Erlang	B-Operating_System
Open	B-Language
Telecom	I-Language
Platform	I-Language
(	O
OTP	O
)	O
.	O
</s>
<s>
BEAM	O
is	O
part	O
of	O
the	O
Erlang	B-Operating_System
Run-Time	O
System	O
(	O
ERTS	O
)	O
,	O
which	O
compiles	O
Erlang	B-Operating_System
source	O
code	O
into	O
bytecode	O
,	O
which	O
is	O
then	O
executed	O
on	O
the	O
BEAM	O
.	O
</s>
<s>
Originally	O
BEAM	O
was	O
short	O
for	O
Bogdan	B-Application
's	I-Application
Erlang	I-Application
Abstract	I-Application
Machine	I-Application
,	O
named	O
after	O
Bogumil	O
"	O
Bogdan	O
"	O
Hausman	O
,	O
who	O
wrote	O
the	O
original	O
version	O
,	O
but	O
the	O
name	O
may	O
also	O
be	O
referred	O
to	O
as	O
Björn	B-Application
's	I-Application
Erlang	I-Application
Abstract	I-Application
Machine	I-Application
,	O
after	O
Björn	O
Gustavsson	O
,	O
who	O
wrote	O
and	O
maintains	O
the	O
current	O
version	O
.	O
</s>
<s>
The	O
predecessor	O
of	O
the	O
BEAM	O
was	O
JAM	O
(	O
Joe	O
's	O
Abstract	O
Machine	O
)	O
,	O
which	O
was	O
the	O
first	O
virtual	B-Architecture
machine	I-Architecture
for	O
the	O
Erlang	B-Operating_System
language	I-Operating_System
and	O
was	O
written	O
by	O
Joe	O
Armstrong	O
.	O
</s>
