<s>
Sintran	B-Operating_System
III	I-Operating_System
is	O
a	O
real-time	B-Operating_System
,	O
multitasking	B-Operating_System
,	O
multi-user	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
used	O
with	O
Norsk	O
Data	O
minicomputers	B-Architecture
from	O
1974	O
.	O
</s>
<s>
Unlike	O
its	O
predecessors	O
Sintran	B-Operating_System
I	O
and	O
II	O
,	O
it	O
was	O
written	O
entirely	O
by	O
Norsk	O
Data	O
,	O
in	O
Nord	B-Language
Programming	I-Language
Language	I-Language
(	O
Nord	O
PL	O
,	O
NPL	B-Language
)	O
,	O
an	O
intermediate	O
language	O
for	O
Norsk	O
Data	O
computers	O
.	O
</s>
<s>
Sintran	B-Operating_System
was	O
mainly	O
a	O
command-line	B-Application
interface	I-Application
based	O
operating	B-General_Concept
system	I-General_Concept
,	O
though	O
there	O
were	O
several	O
shells	B-Operating_System
which	O
could	O
be	O
installed	O
to	O
control	O
the	O
user	O
environment	O
more	O
strictly	O
,	O
by	O
far	O
the	O
most	O
popular	O
of	O
which	O
was	O
USER-ENVIRONMENT	O
.	O
</s>
<s>
One	O
of	O
the	O
clever	O
features	O
was	O
to	O
be	O
able	O
to	O
abbreviate	O
commands	B-Application
and	O
file	O
names	O
between	O
hyphens	O
.	O
</s>
<s>
This	O
saved	O
many	O
keystrokes	O
and	O
would	O
allow	O
users	O
a	O
very	O
nice	O
learning	O
experience	O
,	O
from	O
complete	O
and	O
self-explanatory	O
commands	B-Application
like	O
LIST-ALL-FILES	O
to	O
L-A-F	O
for	O
an	O
advanced	O
user	O
.	O
</s>
<s>
(	O
The	O
hyphen	O
key	O
on	O
Norwegian	O
keyboards	B-Device
resides	O
where	O
the	O
slash	O
key	O
does	O
on	O
U.S.	O
</s>
<s>
Now	O
that	O
Sintran	B-Operating_System
has	O
mostly	O
disappeared	O
as	O
an	O
operating	B-General_Concept
system	I-General_Concept
,	O
there	O
are	O
few	O
references	O
to	O
it	O
.	O
</s>
<s>
However	O
a	O
job	B-Application
control	I-Application
or	O
batch	B-General_Concept
processing	I-General_Concept
language	O
was	O
available	O
named	O
JEC	O
,	O
believed	O
to	O
be	O
named	O
Job	O
Execution	O
Controller	O
,	O
this	O
could	O
be	O
used	O
to	O
set	O
up	O
batch	B-General_Concept
jobs	I-General_Concept
to	O
compile	O
COBOL	B-Application
programs	O
,	O
etc	O
.	O
</s>
