<s>
The	O
Electronika	B-Device
60	I-Device
(	O
)	O
is	O
a	O
computer	O
made	O
in	O
the	O
Soviet	O
Union	O
by	O
Elektronika	O
in	O
Voronezh	O
from	O
1978	O
until	O
1991	O
.	O
</s>
<s>
The	O
original	O
implementation	O
of	O
Tetris	B-Device
was	O
written	O
for	O
the	O
Electronika	B-Device
60	I-Device
by	O
Alexey	O
Pajitnov	O
in	O
1985	O
.	O
</s>
<s>
As	O
the	O
Electronika	B-Device
60	I-Device
does	O
not	O
have	O
raster	B-Algorithm
graphics	I-Algorithm
,	O
text	O
characters	O
were	O
used	O
to	O
form	O
the	O
blocks	O
.	O
</s>
