<s>
The	O
IBM	B-Device
4683	I-Device
was	O
IBM	O
's	O
first	O
PC-based	O
point	O
of	O
sale	O
(	O
POS	O
)	O
system	O
.	O
</s>
<s>
The	O
system	O
consists	O
of	O
a	O
PC-based	O
controller	O
and	O
thin	B-Device
client	I-Device
based	O
POS	O
workstations	O
,	O
typically	O
with	O
a	O
Token	B-Device
Ring	I-Device
network	I-Device
.	O
</s>
<s>
The	O
system	O
requires	O
an	O
IBM	B-Device
AS/400	I-Device
server	O
to	O
be	O
in	O
the	O
network	O
.	O
</s>
<s>
However	O
the	O
4683	O
has	O
been	O
phased	O
out	O
by	O
some	O
retailers	O
to	O
its	O
more	O
modern	O
successors	O
,	O
the	O
IBM	O
4693	O
and	O
the	O
IBM	B-Device
4694	I-Device
.	O
</s>
