<s>
A	O
microfilm	B-General_Concept
reader	I-General_Concept
is	O
a	O
device	O
used	O
in	O
projecting	O
and	O
magnifying	O
images	O
stored	O
in	O
microform	O
to	O
readable	O
proportions	O
.	O
</s>
<s>
With	O
the	O
invention	O
of	O
microfilm	O
,	O
microfilm	B-General_Concept
readers	I-General_Concept
soon	O
developed	O
.	O
</s>
<s>
A	O
modern	O
microfilm	B-General_Concept
reader	I-General_Concept
consists	O
of	O
:	O
</s>
<s>
Microfilm	B-General_Concept
readers	I-General_Concept
are	O
stored	O
in	O
special	O
rooms	O
known	O
as	O
“	O
reading	O
rooms	O
,	O
”	O
with	O
two	O
prevalent	O
types	O
of	O
readers	O
.	O
</s>
<s>
In	O
modern	O
translucent	O
microfilm	B-General_Concept
readers	I-General_Concept
,	O
light	O
is	O
projected	O
into	O
a	O
film	O
producing	O
an	O
enlarged	O
image	O
of	O
the	O
film	O
on	O
a	O
translucent	O
screen	O
,	O
and	O
in	O
opaque	O
readers	O
the	O
same	O
process	O
occurs	O
except	O
the	O
image	O
in	O
on	O
an	O
opaque	O
screen	O
.	O
</s>
