<s>
ToaruOS	B-Language
(	O
also	O
known	O
as	O
ToAruOS	B-Language
or	O
とあるOS	O
;	O
'	O
toaru	O
 '	O
is	O
Japanese	O
roughly	O
equivalent	O
to	O
'	O
a	O
certain	O
 '	O
)	O
is	O
a	O
hobby	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
and	O
kernel	B-Operating_System
developed	O
largely	O
independently	O
(	O
notably	O
contrary	O
to	O
most	O
modern	O
OSes	O
,	O
which	O
are	O
based	O
on	O
existing	O
source	O
code	O
)	O
by	O
K	O
.	O
Lange	O
.	O
</s>
<s>
It	O
is	O
released	O
under	O
the	O
permissive	B-License
UIUC	B-License
License	I-License
,	O
and	O
supports	O
64-bit	B-Device
computer	I-Device
hardware	O
with	O
SMP	O
.	O
</s>
<s>
ToaruOS	B-Language
is	O
programmed	O
in	O
C	B-Language
,	O
and	O
uses	O
the	O
Cairo	B-Language
graphics	I-Language
library	I-Language
.	O
</s>
<s>
It	O
has	O
support	O
for	O
GCC	B-Application
,	O
Python	B-Language
,	O
and	O
Simple	B-Operating_System
DirectMedia	I-Operating_System
Layer	I-Operating_System
as	O
well	O
as	O
many	O
open-source	B-Application
utilities	O
–	O
including	O
Vim	B-Application
.	O
</s>
<s>
A	O
package	B-Application
manager	I-Application
and	O
basic	O
window	O
switcher	O
are	O
also	O
included	O
.	O
</s>
<s>
The	O
kernel	B-Operating_System
is	O
a	O
'	O
basic	O
Unix-like	B-Operating_System
environment	O
 '	O
.	O
</s>
<s>
It	O
has	O
a	O
hybrid	B-Operating_System
architecture	I-Operating_System
,	O
with	O
internal	O
and	O
external	O
device	O
support	O
being	O
delegated	O
to	O
modules	O
.	O
</s>
<s>
Several	O
filesystems	O
are	O
supported	O
via	O
this	O
system	O
,	O
including	O
ext2	B-Application
and	O
ISO	B-Application
9660	I-Application
.	O
</s>
<s>
Networking	O
support	O
is	O
included	O
,	O
but	O
is	O
limited	O
to	O
simple	O
IPv4	B-Protocol
functionality	O
.	O
</s>
<s>
The	O
userspace	B-Operating_System
also	O
has	O
a	O
window	B-Application
manager	I-Application
,	O
Yutani	O
(	O
named	O
after	O
the	O
Wayland-Yutani	O
Corporation	O
from	O
the	O
Alien	O
franchise	O
,	O
and	O
as	O
a	O
reference	O
to	O
the	O
Wayland	B-Language
Display	I-Language
Server	I-Language
for	O
Linux	O
)	O
,	O
with	O
input	O
support	O
.	O
</s>
<s>
It	O
stores	O
windows	O
as	O
shared	O
memory	O
regions	O
with	O
32-bit	O
colour	O
,	O
and	O
uses	O
pipes	B-Operating_System
to	O
communicate	O
to	O
other	O
parts	O
of	O
the	O
OS	O
.	O
</s>
<s>
Initially	O
,	O
it	O
was	O
based	O
on	O
tutorials	O
for	O
x86	B-Operating_System
kernels	B-Operating_System
.	O
</s>
<s>
A	O
GUI	B-Application
was	O
added	O
with	O
a	O
window	B-Application
manager	I-Application
in	O
2012	O
,	O
this	O
was	O
replaced	O
with	O
a	O
more	O
advanced	O
version	O
in	O
2014	O
.	O
</s>
<s>
For	O
April	O
Fools	O
 '	O
Day	O
2015	O
,	O
Lange	O
released	O
,	O
a	O
version	O
of	O
ToaruOS	B-Language
themed	O
after	O
the	O
animated	O
series	O
My	B-Application
Little	I-Application
Pony	I-Application
:	I-Application
Friendship	I-Application
Is	I-Application
Magic	I-Application
.	O
</s>
