<s>
Circa	B-Operating_System
1948	I-Operating_System
is	O
both	O
a	O
2014	O
interactive	O
app	B-Application
for	O
iOS	B-Application
devices	O
and	O
an	O
interactive	O
installation	O
created	O
by	O
Stan	O
Douglas	O
and	O
the	O
National	O
Film	O
Board	O
of	O
Canada	O
's	O
Digital	O
Studio	O
in	O
Vancouver	O
,	O
led	O
by	O
Loc	O
Dao	O
.	O
</s>
<s>
Circa	B-Operating_System
1948	I-Operating_System
is	O
set	O
in	O
two	O
distinctly	O
different	O
neighbourhoods	O
:	O
West	O
End	O
,	O
Vancouver	O
,	O
which	O
was	O
a	O
wealthier	O
district	O
,	O
home	O
to	O
many	O
veterans	O
back	O
from	O
the	O
war	O
,	O
and	O
East	O
Vancouver	O
,	O
which	O
was	O
,	O
in	O
the	O
words	O
of	O
Douglas	O
,	O
"	O
basically	O
an	O
ethnic	O
slum	O
where	O
the	O
laws	O
of	O
the	O
city	O
had	O
been	O
suspended	O
.	O
</s>
<s>
Douglas	O
has	O
also	O
stated	O
that	O
his	O
initial	O
concept	O
had	O
been	O
for	O
site	O
specific	O
installations	O
in	O
Vancouver	O
but	O
the	O
NFB	O
,	O
with	O
its	O
mandate	O
to	O
create	O
works	O
accessible	O
to	O
all	O
Canadians	O
,	O
encouraged	O
him	O
to	O
rethink	O
the	O
project	O
as	O
an	O
app	B-Application
and	O
movable	O
immersive	O
experience	O
.	O
</s>
<s>
Douglas	O
,	O
who	O
lives	O
in	O
Vancouver	O
,	O
researched	O
the	O
project	O
with	O
maps	O
and	O
photos	O
,	O
which	O
were	O
digitally	O
converted	O
by	O
the	O
NFB	O
into	O
an	O
explorable	O
virtual	B-Application
world	I-Application
,	O
using	O
Autodesk	B-Language
Maya	I-Language
.	O
</s>
<s>
The	O
app	B-Application
was	O
launched	O
on	O
April	O
22	O
,	O
2014	O
,	O
followed	O
one	O
day	O
later	O
by	O
the	O
installation	O
,	O
at	O
the	O
Tribeca	O
Film	O
Festival	O
.	O
</s>
<s>
Douglas	O
has	O
also	O
created	O
the	O
play	O
Helen	O
Lawrence	O
,	O
which	O
shares	O
graphics	O
,	O
story	O
and	O
characters	O
with	O
Circa	B-Operating_System
1948	I-Operating_System
.	O
</s>
