<s>
CER	B-Device
(	O
–	O
Digital	O
Electronic	O
Computer	O
)	O
model	O
12	O
was	O
a	O
third-generation	O
digital	O
computer	O
developed	O
by	O
Mihajlo	O
Pupin	O
Institute	O
(	O
Serbia	O
)	O
in	O
1971	O
and	O
intended	O
for	O
"	O
business	O
and	O
statistical	O
data	O
processing	O
"	O
(	O
see	O
ref	O
.	O
</s>
<s>
Computer	O
CER-12	B-Device
consisted	O
of	O
multiple	O
modules	O
connected	O
via	O
wire	O
wrap	O
and	O
connectors	O
.	O
</s>
<s>
Capacity	O
:	O
up	O
to	O
8	O
modules	O
,	O
each	O
consisting	O
of	O
8	O
kilowords	O
(	O
1	O
word	O
=	O
4	O
8-bit	O
bytes	B-Application
)	O
.	O
</s>
<s>
Arithmetic	B-General_Concept
unit	I-General_Concept
contains	O
:	O
</s>
<s>
Control	B-General_Concept
unit	I-General_Concept
contains	O
a	O
program	B-General_Concept
counter	I-General_Concept
and	O
instruction	B-General_Concept
registers	I-General_Concept
.	O
</s>
<s>
It	O
supports	O
single-operand	O
instruction	B-General_Concept
set	O
and	O
works	O
with	O
all	O
16	O
index	B-General_Concept
registers	I-General_Concept
of	O
the	O
arithmetic	B-General_Concept
unit	I-General_Concept
.	O
</s>
<s>
Interrupt	B-Application
system	O
of	O
CER-12	B-Device
consists	O
of	O
a	O
number	O
of	O
dedicated	O
registers	O
and	O
software	O
.	O
</s>
<s>
It	O
supports	O
up	O
to	O
32	O
interrupt	B-Application
channels	O
.	O
</s>
<s>
Control	O
panel	O
of	O
CER-12	B-Device
allowed	O
the	O
operator	O
to	O
control	O
and	O
alter	O
program	O
flow	O
and/or	O
to	O
eliminate	O
errors	O
detected	O
by	O
error-detection	O
circuitry	O
.	O
</s>
<s>
Following	O
software	O
was	O
shipped	O
with	O
CER-12	B-Device
:	O
</s>
