<s>
PC	B-Device
Open	I-Device
Architecture	I-Device
Developers	I-Device
 '	I-Device
Group	I-Device
(	O
OADG	B-Device
,	O
Japanese	O
:	O
)	O
is	O
a	O
consortium	O
of	O
the	O
major	O
Japanese	O
personal	B-Device
computer	I-Device
manufacturers	O
.	O
</s>
<s>
Sponsored	O
by	O
IBM	O
during	O
the	O
1990s	O
,	O
it	O
successfully	O
guided	O
Japan	O
's	O
personal	B-Device
computer	I-Device
manufacturing	O
companies	O
at	O
that	O
time	O
into	O
standardising	O
to	O
an	O
IBM	O
PC-compatible	O
and	O
open	B-Architecture
architecture	I-Architecture
.	O
</s>
<s>
Before	O
the	O
advent	O
of	O
the	O
IBM	B-Device
PC	I-Device
in	O
1981	O
in	O
the	O
United	O
States	O
,	O
there	O
were	O
many	O
different	O
varieties	O
and	O
designs	O
of	O
personal	B-Device
computer	I-Device
.	O
</s>
<s>
In	O
Japan	O
,	O
except	O
for	O
the	O
MSX	B-Operating_System
,	O
this	O
situation	O
continued	O
well	O
into	O
the	O
early	O
1990s	O
,	O
because	O
three	O
of	O
Japan	O
's	O
major	O
electronics	O
manufacturers	O
(	O
NEC	O
,	O
Sharp	O
and	O
Fujitsu	O
)	O
had	O
also	O
designed	O
their	O
own	O
unique	O
personal	B-Device
computers	I-Device
;	O
although	O
NEC	O
with	O
its	O
NEC	B-Operating_System
9801	I-Operating_System
was	O
at	O
that	O
time	O
the	O
most	O
successful	O
.	O
</s>
<s>
The	O
American	O
computer	O
manufacturer	O
IBM	O
had	O
entered	O
the	O
Japanese	O
market	O
with	O
its	O
own	O
IBM	B-Device
5550	I-Device
computer	O
.	O
</s>
<s>
Japanese-language-capable	O
computers	O
at	O
the	O
time	O
,	O
however	O
,	O
had	O
special	O
requirements	O
in	O
terms	O
of	O
processor	O
capability	O
and	O
screen	O
size	O
,	O
and	O
IBM	O
's	O
JX	B-Device
project	O
,	O
emphasizing	O
compatibility	O
with	O
the	O
IBM	B-Device
PC	I-Device
,	O
enjoyed	O
limited	O
success	O
.	O
</s>
<s>
The	O
whole	O
situation	O
was	O
felt	O
by	O
many	O
to	O
be	O
hindering	O
the	O
healthy	O
growth	O
of	O
the	O
Japanese	O
computer	O
industry	O
,	O
particularly	O
since	O
domestic	O
and	O
overseas	O
software	O
vendors	O
had	O
to	O
develop	O
,	O
test	O
and	O
support	O
many	O
different	O
software	O
programs	O
to	O
run	O
on	O
the	O
many	O
different	O
kinds	O
of	O
personal	B-Device
computers	I-Device
sold	O
in	O
Japan	O
.	O
</s>
<s>
IBM	O
developed	O
the	O
operating	O
software	O
DOS/V	B-Application
in	O
Japan	O
,	O
and	O
licensed	O
it	O
to	O
other	O
Japanese	O
PC	O
manufacturers	O
.	O
</s>
<s>
To	O
promote	O
the	O
IBM	B-Device
PC	I-Device
architecture	O
on	O
which	O
DOS/V	B-Application
worked	O
,	O
IBM	O
sponsored	O
a	O
consortium	O
which	O
was	O
named	O
the	O
PC	B-Device
Open	I-Device
Architecture	I-Device
Developers	I-Device
 '	I-Device
Group	I-Device
(	O
OADG	B-Device
)	O
in	O
1991	O
and	O
made	O
public	O
its	O
internal	O
architecture	O
and	O
interfaces	O
.	O
</s>
<s>
Together	O
,	O
they	O
not	O
only	O
strove	O
to	O
develop	O
a	O
unified	O
architecture	O
,	O
but	O
also	O
produced	O
a	O
number	O
of	O
DOS/V	B-Application
-compatible	O
application	O
software	O
programs	O
and	O
participated	O
in	O
the	O
major	O
computer	O
shows	O
.	O
</s>
<s>
By	O
the	O
time	O
Microsoft	O
's	O
computer	O
operating	O
system	O
Windows	B-Application
95	I-Application
had	O
arrived	O
in	O
1995	O
,	O
the	O
IBM	B-Device
PC	I-Device
architecture	O
,	O
using	O
DOS/V	B-Application
,	O
was	O
already	O
a	O
predominant	O
force	O
in	O
Japan	O
.	O
</s>
