<s>
A	O
data	B-General_Concept
entry	I-General_Concept
clerk	I-General_Concept
,	O
also	O
known	O
as	O
data	O
preparation	O
and	O
control	O
operator	O
,	O
data	O
registration	O
and	O
control	O
operator	O
,	O
and	O
data	O
preparation	O
and	O
registration	O
operator	O
,	O
is	O
a	O
member	O
of	O
staff	O
employed	O
to	O
enter	O
or	O
update	O
data	O
into	O
a	O
computer	O
system	O
.	O
</s>
<s>
Data	O
is	O
often	O
entered	O
into	O
a	O
computer	O
from	O
paper	O
documents	O
using	O
a	O
keyboard	B-Device
.	O
</s>
<s>
The	O
keyboards	B-Device
used	O
can	O
often	O
have	O
special	O
keys	O
and	O
multiple	O
colors	O
to	O
help	O
in	O
the	O
task	O
and	O
speed	O
up	O
the	O
work	O
.	O
</s>
<s>
The	O
data	B-General_Concept
entry	I-General_Concept
clerk	I-General_Concept
may	O
also	O
use	O
a	O
mouse	O
,	O
and	O
a	O
manually-fed	O
scanner	O
may	O
be	O
involved	O
.	O
</s>
<s>
The	O
invention	O
of	O
punched	B-Architecture
card	I-Architecture
data	O
processing	O
in	O
the	O
1890s	O
created	O
a	O
demand	O
for	O
many	O
workers	O
,	O
typically	O
women	O
,	O
to	O
run	O
keypunch	B-Device
machines	I-Device
.	O
</s>
<s>
In	O
the	O
1970s	O
,	O
punched	B-Architecture
card	I-Architecture
data	O
entry	O
was	O
gradually	O
replaced	O
by	O
the	O
use	O
of	O
video	B-General_Concept
display	I-General_Concept
terminals	I-General_Concept
.	O
</s>
<s>
For	O
a	O
mailing	O
company	O
,	O
data	B-General_Concept
entry	I-General_Concept
clerks	I-General_Concept
might	O
be	O
required	O
to	O
type	O
in	O
reference	O
numbers	O
for	O
items	O
of	O
mail	O
which	O
had	O
failed	O
to	O
reach	O
their	O
destination	O
,	O
so	O
that	O
the	O
relevant	O
addresses	O
could	O
be	O
deleted	O
from	O
the	O
database	O
used	O
to	O
send	O
the	O
mail	O
out	O
.	O
</s>
<s>
If	O
the	O
company	O
was	O
compiling	O
a	O
database	O
from	O
addresses	O
handwritten	O
on	O
a	O
questionnaire	O
,	O
the	O
person	O
typing	O
those	O
into	O
the	O
database	O
would	O
be	O
a	O
data	B-General_Concept
entry	I-General_Concept
clerk	I-General_Concept
.	O
</s>
<s>
In	O
a	O
cash	O
office	O
,	O
a	O
data	B-General_Concept
entry	I-General_Concept
clerk	I-General_Concept
might	O
be	O
required	O
to	O
type	O
expenses	O
into	O
a	O
database	O
using	O
numerical	O
codes	O
.	O
</s>
<s>
With	O
to	O
the	O
advance	O
of	O
technology	O
,	O
many	O
data	B-General_Concept
entry	I-General_Concept
clerks	I-General_Concept
no	O
longer	O
work	O
with	O
hand-written	O
documents	O
.	O
</s>
<s>
Instead	O
,	O
the	O
documents	O
are	O
first	O
scanned	O
by	O
a	O
combined	O
OCR/OMR	O
system	O
(	O
optical	B-Application
character	I-Application
recognition	I-Application
and	O
optical	B-Application
mark	I-Application
recognition	I-Application
,	O
)	O
which	O
attempts	O
to	O
read	O
the	O
documents	O
and	O
process	O
the	O
data	O
electronically	O
.	O
</s>
<s>
The	O
accuracy	O
of	O
OCR	O
varies	O
widely	O
based	O
upon	O
the	O
quality	O
of	O
the	O
original	O
document	O
as	O
well	O
as	O
the	O
scanned	O
image	O
;	O
hence	O
the	O
ongoing	O
need	O
for	O
data	B-General_Concept
entry	I-General_Concept
clerks	I-General_Concept
.	O
</s>
<s>
Although	O
OCR	O
technology	O
is	O
continually	O
being	O
developed	O
,	O
many	O
tasks	O
still	O
require	O
a	O
data	B-General_Concept
entry	I-General_Concept
clerk	I-General_Concept
to	O
review	O
the	O
results	O
afterward	O
to	O
check	O
the	O
accuracy	O
of	O
the	O
data	O
and	O
to	O
manually	O
key	O
in	O
any	O
missed	O
or	O
incorrect	O
information	O
.	O
</s>
<s>
These	O
files	O
are	O
then	O
processed	O
by	O
the	O
optical	B-Application
character	I-Application
recognition	I-Application
system	O
,	O
where	O
many	O
fields	O
are	O
completed	O
by	O
the	O
computerized	O
optical	O
scanner	O
.	O
</s>
<s>
When	O
the	O
OCR	B-Application
software	I-Application
has	O
low	O
confidence	O
in	O
a	O
data	O
field	O
,	O
it	O
is	O
flagged	O
for	O
review	O
–	O
not	O
the	O
entire	O
record	O
but	O
just	O
the	O
single	O
field	O
.	O
</s>
<s>
The	O
data	B-General_Concept
entry	I-General_Concept
clerk	I-General_Concept
then	O
manually	O
reviews	O
the	O
data	O
already	O
entered	O
by	O
OCR	O
,	O
corrects	O
it	O
if	O
needed	O
,	O
and	O
fills	O
in	O
any	O
missing	O
data	O
by	O
simultaneously	O
viewing	O
the	O
image	O
on-screen	O
.	O
</s>
<s>
The	O
role	O
of	O
data	B-General_Concept
entry	I-General_Concept
clerks	I-General_Concept
working	O
with	O
physical	O
hand-written	O
documents	O
is	O
on	O
the	O
decline	O
in	O
the	O
developed	O
world	O
,	O
because	O
employees	O
within	O
a	O
company	O
frequently	O
enter	O
their	O
own	O
data	O
,	O
as	O
it	O
is	O
collected	O
now	O
,	O
instead	O
of	O
having	O
a	O
different	O
employee	O
do	O
this	O
task	O
.	O
</s>
<s>
,	O
The	O
New	O
York	O
Times	O
was	O
still	O
carrying	O
ads	O
for	O
the	O
job	O
title	O
Data	B-General_Concept
Entry	I-General_Concept
Clerk	I-General_Concept
.	O
</s>
<s>
For	O
the	O
job	O
as	O
a	O
data	B-General_Concept
entry	I-General_Concept
clerk	I-General_Concept
,	O
competent	O
math	O
and	O
English	O
skills	O
may	O
be	O
necessary	O
.	O
</s>
