<s>
Courier	O
was	O
a	O
prototype	O
concept	O
by	O
Microsoft	O
for	O
a	O
dual-touchscreen	B-Device
tablet	B-Device
.	O
</s>
<s>
The	O
device	O
was	O
conceived	O
as	O
being	O
a	O
digital	O
notebook	B-Device
,	O
consisting	O
of	O
two	O
7-inch	O
touchscreens	O
hinged	O
together	O
like	O
a	O
book	O
,	O
and	O
running	O
a	O
custom	O
operating	O
system	O
built	O
primarily	O
around	O
handwriting	B-Application
input	I-Application
and	O
a	O
notebook-like	O
journal	O
for	O
storing	O
notes	O
,	O
images	O
,	O
and	O
clippings	O
from	O
web	O
pages	O
.	O
</s>
<s>
In	O
October	O
2019	O
,	O
Microsoft	O
unveiled	O
an	O
upcoming	O
dual-screen	O
tablet	B-Device
known	O
as	O
the	O
Surface	B-Device
Neo	I-Device
,	O
which	O
has	O
been	O
widely-compared	O
to	O
Courier	O
in	O
terms	O
of	O
design	O
and	O
concept	O
.	O
</s>
<s>
The	O
tablet	B-Device
was	O
reported	O
to	O
have	O
two	O
seven-inch	O
screens	O
with	O
a	O
flexible	O
hinge	O
to	O
allow	O
closure	O
like	O
a	O
book	O
.	O
</s>
<s>
Courier	O
would	O
have	O
relied	O
entirely	O
on	O
touch	B-Application
input	O
and	O
handwriting	B-Application
recognition	I-Application
,	O
as	O
no	O
external	O
keyboard	O
would	O
have	O
been	O
available	O
.	O
</s>
<s>
Reports	O
indicated	O
that	O
it	O
would	O
have	O
been	O
powered	O
by	O
NVIDIA	O
’s	O
Tegra	B-Operating_System
250	O
processor	O
and	O
would	O
have	O
weighed	O
a	O
little	O
over	O
a	O
pound	O
.	O
</s>
<s>
A	O
3-megapixel	O
digital	O
camera	O
with	O
4x	O
zoom	O
was	O
integrated	O
into	O
the	O
prototype	O
system	O
,	O
and	O
the	O
final	O
model	O
might	O
have	O
contained	O
an	O
inductive	B-Application
charging	I-Application
pad	O
for	O
charging	O
batteries	O
wirelessly	O
.	O
</s>
<s>
The	O
system	O
's	O
main	O
purpose	O
would	O
have	O
been	O
to	O
function	O
as	O
a	O
personal	O
notebook	B-Device
and	O
day	O
planner	O
to	O
track	O
contacts	O
,	O
tasks	O
,	O
and	O
appointments	O
.	O
</s>
<s>
Courier	O
would	O
have	O
included	O
applications	O
such	O
as	O
Microsoft	B-Application
Paint	I-Application
and	O
notepad	O
to	O
help	O
users	O
create	O
and	O
organize	O
original	O
content	O
,	O
as	O
well	O
as	O
web	O
and	O
photo	O
browsers	O
,	O
email	O
applications	O
,	O
and	O
possibly	O
an	O
e-reader	O
.	O
</s>
<s>
The	O
core	O
operating	O
system	O
of	O
the	O
Courier	O
was	O
reportedly	O
a	O
specialized	O
version	O
of	O
Microsoft	B-Operating_System
Windows	I-Operating_System
CE	I-Operating_System
,	O
however	O
the	O
Courier	O
would	O
not	O
have	O
allowed	O
installation	O
of	O
native	O
Windows	O
applications	O
onto	O
the	O
system	O
.	O
</s>
<s>
In	O
addition	O
,	O
some	O
reports	O
had	O
indicated	O
that	O
the	O
Courier	O
would	O
incorporate	O
a	O
front-side	O
video	O
camera	O
for	O
live	O
video	O
conferencing	O
(	O
via	O
Microsoft	O
Messenger	O
)	O
on	O
the	O
left	O
side	O
of	O
the	O
notebook	B-Device
so	O
that	O
users	O
could	O
have	O
edited	O
documents	O
or	O
taken	O
notes	O
on	O
the	O
right	O
side	O
.	O
</s>
<s>
The	O
primary	O
interface	O
of	O
the	O
Courier	O
would	O
have	O
been	O
the	O
Infinite	B-Application
Journal	I-Application
,	O
an	O
electronic	O
journal	O
with	O
an	O
unlimited	O
number	O
of	O
pages	O
upon	O
which	O
users	O
could	O
have	O
taken	O
notes	O
,	O
dragged	O
photos	O
,	O
sketched	O
drawings	O
,	O
and	O
stored	O
"	O
web	O
clippings.	O
"	O
</s>
<s>
These	O
concepts	O
are	O
similar	O
to	O
the	O
existing	O
Windows	B-Device
Journal	I-Device
,	O
which	O
has	O
been	O
included	O
in	O
every	O
version	O
of	O
Windows	O
since	O
XP	O
.	O
</s>
<s>
The	O
journal	O
(	O
in	O
whole	O
or	O
in	O
part	O
)	O
would	O
have	O
been	O
able	O
to	O
be	O
published	O
online	O
in	O
several	O
formats	O
,	O
including	O
PDF	B-Application
and	O
Microsoft	B-Application
PowerPoint	I-Application
documents	O
.	O
</s>
<s>
The	O
Infinite	B-Application
Journal	I-Application
concept	O
reportedly	O
originated	O
from	O
a	O
desire	O
to	O
build	O
Microsoft	B-Application
OneNote	I-Application
from	O
scratch	O
with	O
the	O
dual-screen	O
booklet	O
form	O
factor	O
in	O
mind	O
.	O
</s>
<s>
The	O
"	O
Smart	O
Agenda	O
"	O
would	O
have	O
been	O
a	O
condensed	O
summary	O
of	O
the	O
Infinite	B-Application
Journal	I-Application
,	O
in	O
which	O
hyperlinked	O
content	O
would	O
bring	O
the	O
user	O
to	O
the	O
appropriate	O
pages	O
of	O
the	O
Infinite	B-Application
Journal	I-Application
.	O
</s>
<s>
An	O
innovative	O
feature	O
of	O
the	O
Microsoft	B-Application
Courier	I-Application
would	O
have	O
been	O
users	O
 '	O
ability	O
to	O
"	O
clip	O
"	O
content	O
from	O
web	O
sites	O
or	O
emails	O
,	O
to	O
"	O
tuck	O
"	O
the	O
clipping	O
underneath	O
the	O
physical	O
hinge	O
of	O
the	O
journal	O
,	O
and	O
then	O
to	O
flip	O
the	O
virtual	O
pages	O
until	O
the	O
clipping	O
was	O
pasted	O
into	O
the	O
appropriate	O
page	O
.	O
</s>
<s>
The	O
Courier	O
would	O
have	O
featured	O
multi-touch	B-Application
and	O
stylus	B-Device
operation	O
.	O
</s>
<s>
The	O
stylus	B-Device
would	O
have	O
operated	O
in	O
several	O
different	O
modes	O
,	O
allowing	O
users	O
to	O
easily	O
toggle	O
between	O
writing	O
,	O
painting	O
,	O
and	O
sketching	O
.	O
</s>
<s>
Additionally	O
,	O
the	O
physical	O
stylus	B-Device
would	O
have	O
been	O
able	O
to	O
access	O
some	O
new	O
editing	O
functions	O
.	O
</s>
<s>
Twisting	O
the	O
stylus	B-Device
would	O
have	O
engaged	O
Courier	O
's	O
drawing	O
functionality	O
,	O
and	O
flipping	O
the	O
stylus	B-Device
over	O
(	O
like	O
a	O
pencil	B-Device
)	O
would	O
have	O
caused	O
the	O
stylus	B-Device
to	O
erase	O
content	O
on	O
the	O
virtual	O
page	O
.	O
</s>
<s>
In	O
October	O
2019	O
,	O
Microsoft	O
unveiled	O
an	O
upcoming	O
dual-screen	O
tablet	B-Device
in	O
the	O
Surface	B-Device
family	O
with	O
strong	O
similarities	O
to	O
the	O
Courier	O
concept	O
,	O
known	O
as	O
the	O
Surface	B-Device
Neo	I-Device
.	O
</s>
<s>
Microsoft	O
emphasized	O
its	O
support	O
of	O
various	O
"	O
postures	O
"	O
to	O
support	O
different	O
use	O
cases	O
and	O
scenarios	O
,	O
including	O
support	O
for	O
a	O
stylus	B-Device
pen	O
and	O
a	O
Bluetooth	O
keyboard	O
(	O
which	O
can	O
attach	O
to	O
the	O
bottom	O
screen	O
of	O
the	O
device	O
to	O
create	O
a	O
laptop-like	O
experience	O
,	O
using	O
the	O
remainder	O
of	O
the	O
screen	O
as	O
either	O
a	O
special	O
toolbar	O
or	O
a	O
touchpad	B-Application
depending	O
on	O
position	O
)	O
.	O
</s>
<s>
Microsoft	O
concurrently	O
unveiled	O
a	O
dual-touchscreen	B-Device
smartphone	O
with	O
a	O
similar	O
concept	O
,	O
the	O
Surface	B-Application
Duo	I-Application
.	O
</s>
