<s>
AliOS	B-Protocol
(	O
formerly	O
YunOS	B-Protocol
and	O
Aliyun	B-Protocol
OS	I-Protocol
)	O
is	O
a	O
Linux	B-Application
distribution	I-Application
developed	O
by	O
Alibaba	B-General_Concept
Cloud	I-General_Concept
,	O
a	O
subsidiary	O
of	O
Mainland	O
Chinese	O
company	O
Alibaba	O
Group	O
.	O
</s>
<s>
It	O
is	O
designed	O
for	O
smart	O
cars	O
and	O
Internet	B-Operating_System
of	I-Operating_System
Things	I-Operating_System
(	O
IoT	B-Operating_System
)	O
devices	O
,	O
and	O
it	O
had	O
been	O
used	O
as	O
a	O
mobile	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
.	O
</s>
<s>
On	O
28	O
July	O
2011	O
,	O
Alibaba	B-General_Concept
Cloud	I-General_Concept
confirmed	O
the	O
existence	O
of	O
its	O
own	O
mobile	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
,	O
the	O
YunOS	B-Protocol
.	O
</s>
<s>
The	O
system	O
was	O
described	O
as	O
the	O
result	O
of	O
three	O
years	O
of	O
development	O
and	O
uses	O
Alibaba	B-General_Concept
Cloud	I-General_Concept
's	O
self-developed	O
distributed	O
file	O
system	O
and	O
virtual	O
machine	O
,	O
making	O
it	O
fully	O
compatible	O
with	O
Android-based	O
applications	O
.	O
</s>
<s>
With	O
its	O
YunOS	B-Protocol
,	O
the	O
company	O
is	O
challenging	O
the	O
dominant	O
Android	B-Application
in	O
China	O
and	O
is	O
also	O
looking	O
to	O
expand	O
into	O
Western	O
markets	O
.	O
</s>
<s>
As	O
of	O
May	O
2012	O
,	O
1	O
million	O
YunOS-powered	O
smartphones	O
have	O
been	O
sold	O
.	O
</s>
<s>
The	O
latest	O
publicly	O
available	O
version	O
of	O
YunOS	B-Protocol
,	O
YunOS	B-Protocol
5	O
Atom	O
,	O
as	O
a	O
forked	B-Application
version	O
of	O
Android	B-Application
6.0	O
,	O
was	O
released	O
on	O
10	O
December	O
2015	O
.	O
</s>
<s>
In	O
October	O
2017	O
,	O
Alibaba	O
Group	O
decided	O
to	O
upgrade	O
its	O
operating	O
system	O
strategy	O
to	O
focus	O
investment	O
on	O
the	O
burgeoning	O
Internet	B-Operating_System
of	I-Operating_System
Things	I-Operating_System
sector	O
.	O
</s>
<s>
As	O
part	O
of	O
the	O
move	O
,	O
Alibaba	O
rebranded	O
its	O
YunOS	B-Protocol
operating	O
system	O
as	O
AliOS	B-Protocol
,	O
an	O
operating	O
system	O
offering	O
OS	O
solutions	O
for	O
automobile	O
,	O
industrial	O
and	O
IoT	B-Operating_System
devices	O
.	O
</s>
<s>
At	O
the	O
same	O
time	O
,	O
Alibaba	O
introduced	O
an	O
open-source	B-Application
IoT	B-Operating_System
edition	O
of	O
AliOS	B-Protocol
,	O
named	O
as	O
AliOS	B-Protocol
Things	O
.	O
</s>
<s>
AliOS	B-Protocol
revolves	O
around	O
the	O
idea	O
of	O
bringing	O
cloud	B-Architecture
functionality	O
to	O
smart	O
devices	O
.	O
</s>
<s>
According	O
to	O
the	O
company	O
,	O
AliOS	B-Protocol
will	O
feature	O
cloud-based	B-Architecture
e-mail	O
,	O
Web	O
search	O
,	O
weather	O
updates	O
,	O
and	O
GPS	O
navigation	O
tools	O
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
AliOS	B-Protocol
services	O
will	O
synchronize	O
and	O
store	O
call	O
data	O
,	O
text	O
messages	O
,	O
and	O
photos	O
in	B-Architecture
the	I-Architecture
cloud	I-Architecture
for	O
access	O
across	O
other	O
devices	O
,	O
including	O
personal	O
computers	O
.	O
</s>
<s>
AliOS	B-Protocol
would	O
allow	O
users	O
to	O
access	O
applications	O
from	O
the	O
Web	O
,	O
rather	O
than	O
download	O
apps	O
to	O
their	O
devices	O
.	O
</s>
<s>
In	O
the	O
meantime	O
,	O
AliOS	B-Protocol
Things	O
,	O
as	O
a	O
lightweight	O
IoT	B-Operating_System
embedded	O
operating	O
system	O
for	O
the	O
IoT	B-Operating_System
field	O
,	O
would	O
be	O
suitable	O
for	O
all	O
kinds	O
of	O
small	O
loT	O
devices	O
,	O
and	O
can	O
be	O
widely	O
used	O
in	O
smart	O
home	O
,	O
smart	O
city	O
,	O
new	O
travel	O
and	O
other	O
fields	O
.	O
</s>
<s>
According	O
to	O
Google	B-Application
,	O
AliOS	B-Protocol
is	O
a	O
forked	B-Application
but	O
incompatible	O
version	O
of	O
its	O
open-source	B-Application
Android	B-Application
operating	I-Application
system	I-Application
.	O
</s>
<s>
Google	B-Application
therefore	O
attempted	O
to	O
prevent	O
Acer	O
Inc	O
.	O
from	O
shipping	O
an	O
AliOS-powered	O
phone	O
,	O
arguing	O
that	O
Acer	O
,	O
a	O
member	O
of	O
the	O
Open	O
Handset	O
Alliance	O
,	O
had	O
agreed	O
not	O
to	O
produce	O
phones	O
running	O
incompatible	O
Android	B-Application
versions	O
.	O
</s>
<s>
Andy	O
Rubin	O
,	O
who	O
at	O
the	O
time	O
was	O
in	O
charge	O
of	O
the	O
Android	B-Application
division	O
at	O
Google	B-Application
,	O
stated	O
that	O
while	O
AliOS	B-Protocol
is	O
not	O
part	O
of	O
the	O
Android	B-Application
ecosystem	O
,	O
it	O
uses	O
runtimes	O
,	O
framework	O
and	O
various	O
tools	O
from	O
Android	B-Application
.	O
</s>
<s>
Alibaba	O
disputes	O
the	O
claim	O
that	O
AliOS	B-Protocol
is	O
a	O
version	O
of	O
Android	B-Application
by	O
stating	O
the	O
following	O
:	O
"	O
Aliyun	B-Protocol
OS	I-Protocol
[	O
now	O
AliOS ]	O
incorporates	O
its	O
own	O
virtual	O
machine	O
,	O
which	O
is	O
different	O
from	O
Android	B-Application
's	O
Dalvik	B-Application
virtual	I-Application
machine	I-Application
.	O
</s>
<s>
AliOS	B-Protocol
 '	O
runtime	O
environment	O
,	O
which	O
is	O
the	O
core	O
of	O
the	O
OS	O
,	O
consists	O
of	O
both	O
its	O
own	O
Java	O
virtual	O
machine	O
,	O
which	O
is	O
different	O
from	O
Android	B-Application
’s	O
Dalvik	B-Application
virtual	I-Application
machine	I-Application
,	O
and	O
its	O
own	O
cloud	B-Architecture
app	O
engine	O
,	O
which	O
supports	O
HTML5	O
web	O
applications	O
.	O
</s>
<s>
AliOS	B-Protocol
uses	O
some	O
of	O
the	O
Android	B-Application
application	I-Application
framework	O
and	O
tools	O
(	O
open	B-Application
source	I-Application
)	O
merely	O
as	O
a	O
patch	O
to	O
allow	O
AliOS	B-Protocol
users	O
to	O
enjoy	O
third-party	O
apps	O
in	O
addition	O
to	O
the	O
cloud-based	B-Architecture
AliOS	B-Protocol
apps	O
in	O
our	O
ecosystem	O
.	O
</s>
<s>
"	O
However	O
,	O
as	O
of	O
September	O
2012	O
,	O
the	O
AliOS	B-Protocol
app	O
store	O
still	O
contains	O
some	O
pirated	O
Android	B-Application
applications	I-Application
,	O
including	O
many	O
from	O
Google	B-Application
.	I-Application
</s>
<s>
AliOS	B-Protocol
Things	O
is	O
the	O
IoT	B-Operating_System
version	O
of	O
AliOS	B-Protocol
announced	O
and	O
open-sourced	O
in	O
2017	O
.	O
</s>
<s>
It	O
is	O
designed	O
for	O
low	O
power	O
,	O
resource	O
constrained	O
MCUs	B-Architecture
,	O
as	O
well	O
as	O
connectivity	O
SoCs	B-Architecture
.	O
</s>
<s>
AliOS	B-Protocol
Things	O
comes	O
in	O
two	O
editions	O
,	O
one	O
based	O
on	O
the	O
Linux	O
kernel	O
and	O
the	O
other	O
based	O
on	O
Rhino	O
,	O
Alibaba	O
's	O
RTOS	B-Operating_System
kernel	O
.	O
</s>
<s>
In	O
2015	O
November	O
,	O
following	O
Chinese	O
State	O
Administration	O
of	O
Press	O
,	O
Publication	O
,	O
Radio	O
,	O
Film	O
and	O
Television	O
's	O
policy	O
,	O
dozens	O
of	O
third-party	O
applications	O
installed	O
by	O
users	O
on	O
their	O
own	O
YunOS	B-Protocol
set-top	O
boxes	O
were	O
automatically	O
removed	O
and	O
blocked	O
from	O
re-installation	O
.	O
</s>
