<s>
Dataman	B-Device
was	O
an	O
educational	O
toy	O
calculator	O
with	O
mathematical	O
games	O
to	O
aid	O
in	O
learning	O
arithmetic	O
.	O
</s>
<s>
It	O
had	O
an	O
8-digit	O
vacuum	B-General_Concept
fluorescent	I-General_Concept
display	I-General_Concept
(	O
VFD	O
)	O
and	O
a	O
keypad	O
.	O
</s>
<s>
Dataman	B-Device
was	O
manufactured	O
by	O
Texas	O
Instruments	O
and	O
was	O
launched	O
on	O
5	O
June	O
1977	O
.	O
</s>
<s>
DataMan	B-Device
was	O
designed	O
to	O
resemble	O
a	O
robot	B-Algorithm
.	O
</s>
<s>
Notably	O
,	O
the	O
Dataman	B-Device
was	O
powered	O
by	O
a	O
single	O
9V	O
battery	O
with	O
no	O
voltage	O
stepping	O
to	O
the	O
main	O
IC	O
.	O
</s>
<s>
The	O
Dataman	B-Device
is	O
based	O
on	O
a	O
chip	O
similar	O
to	O
the	O
Texas	B-Device
Instruments	I-Device
TMS1100	I-Device
.	O
</s>
