<s>
Beamer	B-Application
is	O
a	O
LaTeX	B-Application
document	O
class	O
for	O
creating	O
presentation	O
slides	O
,	O
with	O
a	O
wide	O
range	O
of	O
templates	O
and	O
a	O
set	O
of	O
features	O
for	O
making	O
slideshow	O
effects	O
.	O
</s>
<s>
It	O
supports	O
pdfLaTeX	B-Language
,	O
LaTeX	B-Application
+	O
dvips	B-Language
,	O
LuaLaTeX	B-Language
and	O
XeLaTeX	B-Application
.	O
</s>
<s>
The	O
name	O
is	O
taken	O
from	O
the	O
German	O
word	O
"	O
Beamer	B-Application
"	O
as	O
a	O
pseudo-anglicism	O
for	O
"	O
video	B-Device
projector	I-Device
"	O
.	O
</s>
<s>
The	O
Beamer	B-Application
class	O
is	O
not	O
the	O
first	O
LaTeX	B-Application
class	O
for	O
creating	O
presentations	O
,	O
and	O
like	O
many	O
of	O
its	O
predecessors	O
(	O
such	O
as	O
slides	O
,	O
seminar	O
,	O
prosper	B-Application
,	O
powerdot	B-Application
)	O
,	O
it	O
has	O
special	O
syntax	O
for	O
defining	O
"	O
slides	O
"	O
(	O
known	O
in	O
Beamer	B-Application
as	O
"	O
frames	O
"	O
)	O
.	O
</s>
<s>
This	O
is	O
handled	O
with	O
PDF	B-Application
output	O
by	O
creating	O
successive	O
pages	O
that	O
preserve	O
the	O
layout	O
but	O
add	O
new	O
elements	O
,	O
so	O
that	O
advancing	O
to	O
the	O
next	O
page	O
in	O
the	O
PDF	B-Application
file	I-Application
appears	O
to	O
add	O
something	O
to	O
the	O
displayed	O
page	O
,	O
when	O
in	O
fact	O
it	O
has	O
merely	O
redrawn	O
the	O
page	O
.	O
</s>
<s>
The	O
list	O
of	O
features	O
supported	O
by	O
Beamer	B-Application
is	O
quite	O
long	O
.	O
</s>
<s>
Beamer	B-Application
can	O
be	O
used	O
with	O
pdfLaTeX	B-Language
,	O
LaTeX+dvips	O
,	O
LuaLaTeX	B-Language
and	O
XeLaTeX	B-Application
.	O
</s>
<s>
LaTeX+dvipdfm	O
is	O
n’t	O
supported	O
.	O
</s>
<s>
The	O
standard	O
commands	O
of	O
LaTeX	B-Application
still	O
work	O
.	O
</s>
<s>
A	O
special	O
style	O
file	O
allows	O
for	O
the	O
use	O
the	O
LaTeX	B-Application
source	O
of	O
a	O
presentation	O
directly	O
in	O
other	O
LaTeX	B-Application
classes	O
such	O
as	O
article	O
or	O
book	O
.	O
</s>
<s>
The	O
final	O
output	O
is	O
typically	O
a	O
PDF	B-Application
file	I-Application
,	O
making	O
it	O
highly	O
portable	O
and	O
worry-free	O
,	O
in	O
the	O
sense	O
that	O
a	O
given	O
presentation	O
will	O
always	O
look	O
the	O
same	O
no	O
matter	O
the	O
machine	O
it	O
is	O
opened	O
on	O
.	O
</s>
<s>
Source	O
code	O
for	O
Beamer	B-Application
presentations	O
,	O
like	O
any	O
other	O
LaTeX	B-Application
file	O
,	O
can	O
be	O
created	O
using	O
any	O
text	O
editor	O
,	O
but	O
there	O
is	O
specific	O
support	O
for	O
Beamer	B-Application
syntax	O
in	O
AUCTeX	B-Application
and	O
LyX	B-Language
.	O
</s>
<s>
Beamer	B-Application
supports	O
syntax	O
of	O
other	O
LaTeX	B-Application
presentation	O
packages	O
,	O
including	O
Prosper	B-Application
,	O
Powerdot	B-Application
and	O
Foils	O
,	O
by	O
using	O
compatibility	O
packages	O
.	O
</s>
<s>
Beamer	B-Application
provides	O
the	O
ability	O
to	O
make	O
"	O
handouts	O
"	O
,	O
which	O
is	O
a	O
version	O
of	O
the	O
output	O
suitable	O
for	O
printing	O
without	O
the	O
dynamic	O
features	O
,	O
so	O
that	O
the	O
printed	O
version	O
of	O
a	O
slide	O
shows	O
the	O
final	O
version	O
that	O
will	O
appear	O
during	O
the	O
presentation	O
.	O
</s>
<s>
Beamer	B-Application
depends	O
on	O
the	O
PGF	B-Operating_System
and	O
xcolor	O
packages	O
for	O
some	O
of	O
its	O
features	O
.	O
</s>
