<s>
Scram	B-Application
:	O
A	O
Nuclear	O
Power	O
Plant	O
Simulation	O
is	O
an	O
Atari	B-Device
8-bit	I-Device
family	I-Device
game	O
written	O
by	O
Chris	O
Crawford	O
and	O
published	O
by	O
Atari	O
,	O
Inc	O
.	O
in	O
1981	O
.	O
</s>
<s>
Written	O
in	O
Atari	B-Language
BASIC	I-Language
,	O
Scram	B-Application
uses	O
differential	O
equations	O
to	O
simulate	O
nuclear	O
reactor	O
behavior	O
.	O
</s>
<s>
The	O
player	O
controls	O
the	O
valves	O
and	O
switches	O
of	O
the	O
reactor	O
directly	O
with	O
the	O
joystick	B-Device
.	O
</s>
<s>
This	O
game	O
's	O
title	O
,	O
"	O
SCRAM	B-Application
"	O
,	O
is	O
taken	O
from	O
the	O
term	O
for	O
an	O
emergency	B-Application
shutdown	I-Application
of	I-Application
a	I-Application
nuclear	I-Application
reactor	I-Application
.	O
</s>
<s>
The	O
game	O
display	O
shows	O
a	O
schematic-like	O
representation	O
of	O
a	O
light	O
water	O
reactor	O
,	O
typical	O
of	O
nuclear	O
reactors	O
in	O
use	O
in	O
the	O
United	O
States	O
at	O
that	O
time	O
.	O
</s>
<s>
The	O
user	O
interacts	O
with	O
the	O
game	O
by	O
moving	O
the	O
joystick	B-Device
,	O
which	O
makes	O
a	O
cursor	O
jump	O
from	O
one	O
"	O
hot	O
spot	O
"	O
to	O
another	O
on	O
the	O
screen	O
,	O
each	O
one	O
controlling	O
one	O
part	O
of	O
the	O
reactor	O
systems	O
.	O
</s>
<s>
The	O
user	O
can	O
experiment	O
with	O
the	O
reactor	O
systems	O
by	O
moving	O
the	O
joystick	B-Device
up	O
and	O
down	O
,	O
operating	O
the	O
equipment	O
.	O
</s>
<s>
One	O
big	O
fan	O
of	O
Scram	B-Application
was	O
Harold	O
Denton	O
,	O
the	O
Director	O
of	O
the	O
Office	O
of	O
Nuclear	O
Reactor	O
Regulation	O
at	O
the	O
Nuclear	O
Regulatory	O
Commission	O
.	O
</s>
<s>
In	O
2013	O
Crawford	O
released	O
the	O
source	O
code	O
of	O
several	O
of	O
his	O
games	O
,	O
including	O
Scram	B-Application
,	O
to	O
the	O
public	O
.	O
</s>
