<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
(	O
formerly	O
Raspbian	B-Application
)	O
is	O
a	O
Unix-like	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
based	O
on	O
the	O
Debian	O
Linux	B-Application
distribution	I-Application
for	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
family	O
of	O
compact	O
single-board	B-Device
computers	I-Device
.	O
</s>
<s>
First	O
developed	O
independently	O
in	O
2012	O
,	O
it	O
has	O
been	O
produced	O
as	O
the	O
primary	O
operating	B-General_Concept
system	I-General_Concept
for	O
these	O
boards	O
since	O
2013	O
,	O
distributed	O
by	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
Foundation	O
.	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
is	O
highly	O
optimized	O
for	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
with	O
ARM	B-Architecture
CPUs	O
.	O
</s>
<s>
It	O
runs	O
on	O
every	O
Raspberry	B-Operating_System
Pi	I-Operating_System
except	O
the	O
Pico	O
microcontroller	O
.	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
uses	O
a	O
modified	O
LXDE	B-Language
desktop	O
environment	O
with	O
the	O
Openbox	B-Language
stacking	O
window	O
manager	O
,	O
along	O
with	O
a	O
unique	O
theme	O
.	O
</s>
<s>
The	O
default	O
distribution	O
is	O
shipped	O
with	O
a	O
copy	O
of	O
the	O
computer	O
algebra	O
system	O
Wolfram	B-Application
Mathematica	I-Application
,	O
VLC	B-Application
,	O
and	O
a	O
lightweight	O
version	O
of	O
the	O
Chromium	B-Language
web	I-Language
browser	I-Language
.	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
was	O
first	O
developed	O
by	O
Mike	O
Thompson	O
and	O
Peter	O
Green	O
as	O
Raspbian	B-Application
,	O
an	O
independent	O
and	O
unofficial	O
port	O
of	O
Debian	O
to	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
.	O
</s>
<s>
As	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
had	O
no	O
officially	O
provided	O
operating	B-General_Concept
system	I-General_Concept
at	O
the	O
time	O
,	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
Foundation	O
built	O
on	O
the	O
work	O
by	O
the	O
Raspbian	B-Application
project	O
and	O
began	O
producing	O
and	O
releasing	O
their	O
own	O
version	O
of	O
the	O
software	O
.	O
</s>
<s>
The	O
Foundation	O
's	O
first	O
release	O
of	O
Raspbian	B-Application
,	O
which	O
now	O
referred	O
both	O
to	O
the	O
community	O
project	O
as	O
well	O
as	O
the	O
official	O
operating	B-General_Concept
system	I-General_Concept
,	O
was	O
announced	O
on	O
September	O
10	O
,	O
2013	O
.	O
</s>
<s>
On	O
May	O
28	O
,	O
2020	O
,	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
Foundation	O
announced	O
a	O
beta	O
64-bit	B-Device
version	O
.	O
</s>
<s>
However	O
,	O
this	O
version	O
was	O
not	O
based	O
on	O
Raspbian	B-Application
,	O
instead	O
taking	O
its	O
user	O
space	O
software	O
from	O
Debian	O
GNU/Linux	B-Application
.	O
</s>
<s>
When	O
the	O
Foundation	O
did	O
not	O
want	O
to	O
use	O
the	O
name	O
Raspbian	B-Application
to	O
refer	O
to	O
software	O
that	O
was	O
not	O
based	O
on	O
the	O
Raspbian	B-Application
project	O
,	O
the	O
name	O
of	O
the	O
officially	O
provided	O
operating	B-General_Concept
system	I-General_Concept
was	O
changed	O
to	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
.	O
</s>
<s>
This	O
change	O
was	O
also	O
carried	O
over	O
to	O
the	O
32-bit	O
version	O
,	O
though	O
it	O
continued	O
to	O
be	O
based	O
on	O
Raspbian	B-Application
.	O
</s>
<s>
The	O
64-bit	B-Device
version	O
of	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
was	O
officially	O
released	O
on	O
February	O
2	O
,	O
2022	O
.	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
has	O
a	O
desktop	O
environment	O
,	O
PIXEL	O
(	O
short	O
for	O
Pi	O
Improved	O
Xwindows	O
Environment	O
,	O
Lightweight	O
)	O
,	O
based	O
on	O
LXDE	B-Language
,	O
which	O
looks	O
similar	O
to	O
many	O
common	O
desktops	O
,	O
such	O
as	O
macOS	B-Application
and	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
A	O
menu	O
bar	O
is	O
positioned	O
at	O
the	O
top	O
and	O
contains	O
an	O
application	O
menu	O
and	O
shortcuts	O
to	O
a	O
web	O
browser	O
(	O
Chromium	B-Language
)	O
,	O
file	O
manager	O
,	O
and	O
terminal	O
.	O
</s>
<s>
The	O
other	O
end	O
of	O
the	O
menu	O
bar	O
shows	O
a	O
Bluetooth	B-Protocol
menu	O
,	O
Wi-Fi	O
menu	O
,	O
volume	O
control	O
,	O
and	O
clock	O
.	O
</s>
<s>
Packages	O
can	O
be	O
installed	O
via	O
APT	B-Application
,	O
the	O
Recommended	O
Software	O
app	O
,	O
and	O
by	O
using	O
the	O
Add/Remove	O
Software	O
tool	O
,	O
a	O
GUI	B-Application
wrapper	O
for	O
APT	B-Application
.	O
</s>
<s>
PCManFM	B-Language
is	O
a	O
file	O
browser	O
allowing	O
quick	O
access	O
to	O
all	O
areas	O
of	O
the	O
computer	O
,	O
and	O
was	O
redesigned	O
in	O
the	O
first	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
Buster	O
release	O
(	O
2019-06-20	O
)	O
.	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
originally	O
distributed	O
the	O
web	O
browser	O
Epiphany	B-Language
,	O
but	O
switched	O
to	O
Chromium	B-Language
with	O
the	O
launch	O
of	O
its	O
redesigned	O
desktop	O
.	O
</s>
<s>
The	O
built-in	O
browser	O
comes	O
preinstalled	O
with	O
uBlock	B-Protocol
Origin	I-Protocol
and	O
h264ify	O
.	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
comes	O
with	O
many	O
beginner	O
IDEs	B-Application
,	O
such	O
as	O
Thonny	B-Application
Python	I-Application
IDE	I-Application
,	O
Mu	O
Editor	O
,	O
and	O
Greenfoot	B-Language
.	O
</s>
<s>
It	O
also	O
ships	O
with	O
educational	O
software	O
,	O
such	O
as	O
Scratch	B-Language
and	O
Bookshelf	O
.	O
</s>
<s>
The	O
download	O
statistics	O
from	O
the	O
Raspberry	B-Application
Pi	I-Application
Imager	I-Application
indicate	O
that	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
is	O
by	O
far	O
the	O
most	O
used	O
operating	B-General_Concept
system	I-General_Concept
on	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
,	O
accounting	O
for	O
68.44	O
%	O
of	O
all	O
OS	O
downloads	O
in	O
the	O
month	O
preceding	O
24	O
February	O
2022	O
.	O
</s>
<s>
Jesse	O
Smith	O
from	O
DistroWatch	O
reviewed	O
Raspbian	B-Application
in	O
2015	O
:	O
</s>
<s>
In	O
late	O
January	O
2021	O
,	O
the	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
package	O
raspberrypi-sys-mods	O
added	O
a	O
trusted	O
GPG	B-Application
key	O
and	O
configuration	O
entry	O
in	O
the	O
APT	B-Application
package	O
manager	O
.	O
</s>
<s>
This	O
addition	O
made	O
it	O
easier	O
to	O
install	O
Visual	B-Language
Studio	I-Language
Code	I-Language
,	O
a	O
source	B-Application
code	I-Application
editor	I-Application
developed	O
by	O
Microsoft	O
.	O
</s>
<s>
Given	O
Microsoft	O
's	O
once	O
adversarial	O
history	O
with	O
Linux	B-Operating_System
,	O
this	O
form	O
of	O
telemetry	O
upset	O
some	O
users	O
.	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
is	O
produced	O
in	O
three	O
installation	O
versions	O
:	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
Lite	O
is	O
the	O
smallest	O
version	O
,	O
and	O
does	O
not	O
include	O
a	O
desktop	O
environment	O
.	O
</s>
<s>
Raspberry	B-Application
Pi	I-Application
OS	I-Application
with	O
desktop	O
and	O
recommended	O
software	O
comes	O
pre-installed	O
with	O
additional	O
productivity	O
software	O
,	O
such	O
as	O
Libre	B-Application
Office	I-Application
.	O
</s>
<s>
On	O
December	O
2	O
,	O
2021	O
,	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
Foundation	O
released	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
(	O
Legacy	O
)	O
,	O
a	O
branch	O
of	O
the	O
operating	B-General_Concept
system	I-General_Concept
that	O
continued	O
to	O
receive	O
security	O
and	O
hardware	O
compatibility	O
updates	O
but	O
was	O
based	O
on	O
Buster	O
,	O
an	O
older	O
version	O
of	O
Debian	O
.	O
</s>
<s>
All	O
versions	O
are	O
distributed	O
as	O
disk	O
image	O
files	O
,	O
having	O
the	O
file	O
extension	O
img	B-General_Concept
,	O
intended	O
to	O
be	O
flashed	O
to	O
microSD	O
cards	O
from	O
which	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
is	O
booted	O
.	O
</s>
<s>
In	O
March	O
2020	O
,	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
Foundation	O
published	O
the	O
Raspberry	B-Application
Pi	I-Application
Imager	I-Application
,	O
a	O
custom	O
disk	O
installer	O
for	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
,	O
as	O
well	O
as	O
other	O
operating	B-General_Concept
systems	I-General_Concept
designed	O
for	O
the	O
Raspberry	B-Operating_System
Pi	I-Operating_System
,	O
including	O
RetroPie	O
,	O
and	O
Kodi	B-Application
OS	I-Application
,	O
</s>
<s>
The	O
Raspberry	B-Operating_System
Pi	I-Operating_System
documentation	O
recommends	O
at	O
least	O
a	O
4	O
GiB	O
microSD	O
card	O
for	O
Raspberry	B-Application
Pi	I-Application
OS	I-Application
Lite	O
,	O
and	O
at	O
least	O
an	O
8	O
GiB	O
microSD	O
card	O
for	O
all	O
other	O
versions	O
.	O
</s>
