<s>
Sintran	B-Operating_System
(	O
a	O
portmanteau	O
of	O
SINTEF	O
and	O
Fortran	B-Application
;	O
stylized	O
as	O
SINTRAN	B-Operating_System
)	O
is	O
a	O
range	O
of	O
operating	B-General_Concept
systems	I-General_Concept
(	O
OS	O
)	O
for	O
Norsk	O
Data	O
's	O
line	O
of	O
minicomputers	B-Architecture
.	O
</s>
<s>
The	O
original	O
version	O
of	O
Sintran	B-Operating_System
,	O
was	O
written	O
in	O
the	O
programming	O
language	O
Fortran	B-Application
,	O
released	O
in	O
1968	O
,	O
and	O
developed	O
by	O
the	O
Department	O
of	O
Engineering	O
Cybernetics	O
at	O
the	O
Norwegian	O
Institute	O
of	O
Technology	O
together	O
with	O
the	O
affiliated	O
research	O
institute	O
,	O
SINTEF	O
.	O
</s>
<s>
Norsk	O
Data	O
took	O
part	O
in	O
developing	O
Sintran	B-Operating_System
II	O
,	O
a	O
multi-user	B-Operating_System
software	I-Operating_System
system	O
that	O
constituted	O
the	O
software	O
platform	O
for	O
the	O
Nord-1	B-Device
range	O
of	O
terminal	B-Device
servers	I-Device
.	O
</s>
<s>
By	O
far	O
the	O
most	O
common	O
version	O
of	O
the	O
OS	O
was	O
Sintran	B-Operating_System
III	I-Operating_System
,	O
developed	O
solely	O
by	O
Norsk	O
Data	O
and	O
launched	O
in	O
1974	O
.	O
</s>
<s>
This	O
real-time	B-Operating_System
multitasking	B-Operating_System
system	O
was	O
used	O
for	O
Norsk	O
Data	O
's	O
server	O
machines	O
(	O
such	O
as	O
the	O
Nord-10	B-Device
,	O
-100	B-Device
)	O
for	O
the	O
remainder	O
of	O
the	O
company	O
's	O
lifetime	O
,	O
i.e.	O
</s>
