<s>
UKNC	B-Device
(	O
)	O
is	O
a	O
Soviet	O
PDP-11-compatible	O
educational	O
micro	O
computer	O
,	O
aimed	O
at	O
teaching	O
school	O
informatics	O
courses	O
.	O
</s>
<s>
It	O
is	O
also	O
known	O
as	O
Elektronika	B-Device
MS-0511	I-Device
.	O
</s>
<s>
UKNC	B-Device
stands	O
for	O
Educational	O
Computer	O
by	O
Scientific	O
Centre	O
.	O
</s>
<s>
The	O
0511.2	O
features	O
new	O
firmware	O
with	O
extended	O
functionality	O
and	O
changed	O
the	O
marking	O
of	O
the	O
keyboard	B-Device
's	O
gray	O
keys	O
,	O
compared	O
to	O
the	O
initial	O
version	O
.	O
</s>
<s>
The	O
design	O
of	O
the	O
case	O
,	O
the	O
layout	O
of	O
the	O
keyboard	B-Device
,	O
the	O
location	O
and	O
the	O
shape	O
of	O
expansion	O
slots	O
are	O
inspired	O
by	O
the	O
Yamaha	O
MSX	B-Operating_System
system	O
,	O
which	O
was	O
purchased	O
by	O
the	O
Soviet	O
Union	O
in	O
the	O
early	O
1980s	O
for	O
use	O
in	O
schools	O
.	O
</s>
<s>
The	O
same	O
case	O
and	O
keyboard	B-Device
are	O
found	O
on	O
another	O
educational	O
computer	O
called	O
Rusich	O
(	O
i8085	O
based	O
)	O
.	O
</s>
