<s>
Turing	B-Device
Tumble	I-Device
is	O
a	O
game	O
and	O
demonstration	O
of	O
logic	O
gates	O
via	O
mechanical	B-Device
computer	I-Device
.	O
</s>
<s>
The	O
game	O
is	O
advertised	O
as	O
Turing	B-Algorithm
complete	I-Algorithm
;	O
an	O
extension	O
of	O
the	O
game	O
that	O
allows	O
an	O
infinitely	O
large	O
board	O
and	O
infinitely	O
many	O
pieces	O
has	O
been	O
shown	O
to	O
be	O
Turing	B-Algorithm
complete	I-Algorithm
via	O
simulations	O
of	O
both	O
Rule	O
110	O
for	O
cellular	O
automata	O
,	O
as	O
well	O
as	O
of	O
Turing	B-Architecture
machines	I-Architecture
.	O
</s>
<s>
The	O
framing	O
device	O
in	O
the	O
included	O
comic	O
book	O
features	O
an	O
astronaut	O
who	O
must	O
solve	O
sixty	O
increasingly	O
difficult	O
logic	O
problems	O
which	O
illustrate	O
the	O
fundamentals	O
of	O
computer	B-General_Concept
programming	I-General_Concept
.	O
</s>
<s>
They	O
were	O
also	O
inspired	O
by	O
the	O
Digi-Comp	B-Device
II	I-Device
,	O
a	O
precursor	O
from	O
the	O
late	O
1960s	O
.	O
</s>
<s>
A	O
Turing	B-Device
Tumble	I-Device
machine	O
has	O
the	O
following	O
parts	O
:	O
</s>
