<s>
Operation	B-Application
Neptune	I-Application
is	O
an	O
educational	O
computer	O
game	O
produced	O
in	O
1991	O
by	O
The	O
Learning	O
Company	O
.	O
</s>
<s>
Like	O
other	O
games	O
by	O
The	O
Learning	O
Company	O
,	O
Operation	B-Application
Neptune	I-Application
is	O
educational	O
and	O
was	O
intended	O
for	O
players	O
age	O
nine	O
to	O
fourteen	O
(	O
grades	O
three	O
through	O
ten	O
)	O
.	O
</s>
<s>
A	O
recovery	O
mission	O
,	O
codenamed	O
Operation	B-Application
Neptune	I-Application
,	O
is	O
sent	O
to	O
recover	O
the	O
pieces	O
of	O
the	O
capsule	O
.	O
</s>
<s>
Toxicity	O
Graph	O
:	O
Given	O
a	O
bar	B-Application
chart	I-Application
,	O
the	O
player	O
is	O
asked	O
to	O
interpret	O
two	O
values	O
and	O
calculate	O
the	O
difference	O
.	O
</s>
<s>
The	O
player	O
must	O
round	B-Algorithm
the	O
exact	O
mass	O
to	O
a	O
less	O
precise	O
value	O
.	O
</s>
<s>
Power	O
Supply	O
:	O
The	O
game	O
displays	O
a	O
line	B-Application
chart	I-Application
,	O
where	O
the	O
X-axis	O
represents	O
the	O
Neptune	O
's	O
energy	O
usage	O
per	O
hour	O
and	O
the	O
Y-axis	O
represents	O
the	O
Neptune	O
's	O
speed	O
.	O
</s>
<s>
Speed	O
Graph	O
:	O
Given	O
a	O
bar	B-Application
chart	I-Application
,	O
the	O
player	O
is	O
asked	O
to	O
interpret	O
six	O
values	O
and	O
calculate	O
the	O
arithmetic	O
mean	O
of	O
those	O
values	O
.	O
</s>
<s>
In	O
this	O
problem	O
,	O
the	O
game	O
displays	O
a	O
line	B-Application
chart	I-Application
,	O
where	O
the	O
X-axis	O
represents	O
time	O
(	O
with	O
intervals	O
marked	O
in	O
military	O
time	O
)	O
,	O
and	O
the	O
Y-axis	O
represents	O
toxicity	O
in	O
PPM	O
,	O
with	O
one	O
Y-value	O
being	O
marked	O
as	O
"	O
Normal	O
"	O
.	O
</s>
<s>
Depth	O
Gauge	O
:	O
The	O
game	O
displays	O
a	O
graphic	O
indicating	O
the	O
Neptune	O
's	O
depth	O
in	O
feet	O
,	O
and	O
the	O
player	O
must	O
convert	O
this	O
reading	O
into	O
fathoms	B-Algorithm
.	O
</s>
<s>
The	O
problem	O
initially	O
hides	O
the	O
conversion	O
method	O
from	O
the	O
player	O
;	O
after	O
one	O
wrong	O
answer	O
,	O
the	O
game	O
reveals	O
that	O
6	O
feet	O
=	O
1	O
fathom	B-Algorithm
.	O
</s>
<s>
Water	O
Pressure	O
:	O
The	O
game	O
displays	O
a	O
line	B-Application
chart	I-Application
,	O
where	O
the	O
X-axis	O
is	O
the	O
Neptune	O
's	O
depth	O
in	O
feet	O
and	O
the	O
Y-axis	O
is	O
the	O
water	O
pressure	O
in	O
PSI	O
.	O
</s>
<s>
In	O
most	O
Sectors	O
,	O
a	O
dolphin	B-Application
named	O
Zoom	O
appears	O
in	O
one	O
of	O
the	O
screens	O
.	O
</s>
