<s>
Installation	B-Application
(	O
or	O
setup	O
)	O
of	O
a	O
computer	B-Application
program	I-Application
(	O
including	O
device	B-Application
drivers	I-Application
and	O
plugins	B-Application
)	O
,	O
is	O
the	O
act	O
of	O
making	O
the	O
program	O
ready	O
for	O
execution	B-General_Concept
.	O
</s>
<s>
Installation	B-Application
refers	O
to	O
the	O
particular	O
configuration	O
of	O
a	O
software	O
or	O
hardware	O
with	O
a	O
view	O
to	O
making	O
it	O
usable	O
with	O
the	O
computer	O
.	O
</s>
<s>
Because	O
the	O
process	O
varies	O
for	O
each	O
program	O
and	O
each	O
computer	O
,	O
programs	O
(	O
including	O
operating	B-General_Concept
systems	I-General_Concept
)	O
often	O
come	O
with	O
an	O
installer	B-Application
,	O
a	O
specialised	O
program	O
responsible	O
for	O
doing	O
whatever	O
is	O
needed	O
(	O
see	O
below	O
)	O
for	O
the	O
installation	B-Application
.	O
</s>
<s>
Installation	B-Application
may	O
be	O
part	O
of	O
a	O
larger	O
software	B-Application
deployment	I-Application
process	O
.	O
</s>
<s>
Installation	B-Application
typically	O
involves	O
code	O
(	O
program	O
)	O
being	O
copied/generated	O
from	O
the	O
installation	B-Application
files	O
to	O
new	O
files	O
on	O
the	O
local	O
computer	O
for	O
easier	O
access	O
by	O
the	O
operating	B-General_Concept
system	I-General_Concept
,	O
creating	O
necessary	O
directories	O
,	O
registering	O
environment	O
variables	O
,	O
providing	O
separate	O
program	O
for	O
un-installation	O
etc	O
.	O
</s>
<s>
Because	O
code	O
is	O
generally	O
copied/generated	O
in	O
multiple	O
locations	O
,	O
uninstallation	B-Application
usually	O
involves	O
more	O
than	O
just	O
erasing	O
the	O
program	O
folder	O
.	O
</s>
<s>
For	O
example	O
,	O
registry	O
files	O
and	O
other	O
system	O
code	O
may	O
need	O
to	O
be	O
modified	O
or	O
deleted	O
for	O
a	O
complete	O
uninstallation	B-Application
.	O
</s>
<s>
Some	O
computer	B-Application
programs	I-Application
can	O
be	O
executed	O
by	O
simply	O
copying	O
them	O
into	O
a	O
folder	O
stored	O
on	O
a	O
computer	O
and	O
executing	O
them	O
.	O
</s>
<s>
Other	O
programs	O
are	O
supplied	O
in	O
a	O
form	O
unsuitable	O
for	O
immediate	O
execution	B-General_Concept
and	O
therefore	O
need	O
an	O
installation	B-Application
procedure	O
.	O
</s>
<s>
Once	O
installed	O
,	O
the	O
program	O
can	O
be	O
executed	O
again	O
and	O
again	O
,	O
without	O
the	O
need	O
to	O
reinstall	B-Application
before	O
each	O
execution	B-General_Concept
.	O
</s>
<s>
Common	O
operations	O
performed	O
during	O
software	B-Application
installations	I-Application
include	O
:	O
</s>
<s>
In	O
case	O
of	O
payment	O
,	O
installation	B-Application
costs	O
means	O
the	O
costs	O
connected	O
and	O
relevant	O
to	O
or	O
incurred	O
as	O
a	O
result	O
of	O
installing	O
the	O
drivers	B-Application
or	O
the	O
equipment	O
in	O
the	O
customers	O
 '	O
premises	O
.	O
</s>
<s>
Some	O
installers	B-Application
may	O
attempt	O
to	O
trick	O
users	O
into	O
installing	O
junkware	O
such	O
as	O
various	O
forms	O
of	O
adware	O
,	O
toolbars	O
,	O
trialware	O
or	O
software	O
of	O
partnering	O
companies	O
.	O
</s>
<s>
The	O
installation	B-Application
of	O
additional	O
software	O
then	O
can	O
simply	O
be	O
skipped	O
or	O
unchecked	O
(	O
this	O
may	O
require	O
the	O
user	O
to	O
use	O
the	O
"	O
custom	O
"	O
,	O
"	O
detailed	O
"	O
or	O
"	O
expert	O
"	O
version	O
of	O
the	O
installation	B-Application
procedure	O
)	O
.Such	O
malicious	O
conduct	O
is	O
not	O
necessarily	O
a	O
decision	O
by	O
the	O
software	O
developers	O
or	O
their	O
company	O
but	O
can	O
also	O
be	O
an	O
issue	O
of	O
external	O
installers	B-Application
such	O
as	O
the	O
Download.com	B-Application
installer	B-Application
by	O
CNET	O
.	O
</s>
<s>
As	O
mentioned	O
earlier	O
,	O
some	O
computer	B-Application
programs	I-Application
need	O
no	O
installation	B-Application
.	O
</s>
<s>
This	O
was	O
once	O
usual	O
for	O
many	O
programs	O
which	O
run	O
on	O
DOS	B-Device
,	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
,	O
Atari	B-Application
TOS	I-Application
and	O
AmigaOS	B-Application
.	O
</s>
<s>
As	O
computing	O
environments	O
grew	O
more	O
complex	O
and	O
fixed	O
hard	B-Device
drives	I-Device
replaced	O
floppy	B-Device
disks	I-Device
,	O
the	O
need	O
for	O
tangible	O
installation	B-Application
presented	O
itself	O
.	O
</s>
<s>
For	O
example	O
Commodore	O
released	O
the	O
Installer	B-Application
for	O
Amiga	B-Device
.	O
</s>
<s>
A	O
class	O
of	O
modern	O
applications	B-Application
that	O
do	O
not	O
need	O
installation	B-Application
are	O
known	O
as	O
portable	B-Application
applications	I-Application
,	O
as	O
they	O
may	O
be	O
roamed	O
around	O
onto	O
different	O
computers	O
and	O
run	O
.	O
</s>
<s>
Similarly	O
,	O
there	O
are	O
live	O
operating	B-General_Concept
systems	I-General_Concept
,	O
which	O
do	O
not	O
need	O
installation	B-Application
and	O
can	O
be	O
run	O
directly	O
from	O
a	O
bootable	B-Operating_System
CD	O
,	O
DVD	O
,	O
USB	O
flash	O
drive	O
or	O
loaded	O
over	O
the	O
network	O
as	O
with	O
thin	B-Device
clients	I-Device
.	O
</s>
<s>
Examples	O
are	O
AmigaOS	B-Application
4.0	O
,	O
various	O
Linux	B-Application
distributions	I-Application
,	O
MorphOS	B-Operating_System
or	O
Mac	B-Application
OS	I-Application
versions	O
1.0	O
through	O
9.0	O
.	O
</s>
<s>
Finally	O
,	O
web	B-Application
applications	I-Application
,	O
which	O
run	O
inside	O
a	O
web	B-Application
browser	I-Application
,	O
do	O
not	O
need	O
installation	B-Application
.	O
</s>
<s>
A	O
custom	O
installation	B-Application
allows	O
the	O
installer	B-Application
to	O
choose	O
to	O
select	O
components	O
or	O
parts	O
that	O
are	O
required	O
to	O
be	O
installed	O
.	O
</s>
<s>
full	O
components	O
which	O
may	O
take	O
up	O
too	O
much	O
hard	B-Device
drive	I-Device
space	O
.	O
</s>
<s>
On	O
Windows	O
systems	O
,	O
this	O
is	O
the	O
most	O
common	O
form	O
of	O
installation	B-Application
.	O
</s>
<s>
An	O
installation	B-Application
process	O
usually	O
needs	O
a	O
user	O
who	O
attend	O
it	O
to	O
make	O
choices	O
,	O
such	O
as	O
accepting	O
or	O
declining	O
an	O
end-user	O
license	O
agreement	O
(	O
EULA	O
)	O
,	O
specifying	O
preferences	O
such	O
as	O
the	O
installation	B-Application
location	O
,	O
supplying	O
passwords	O
or	O
assisting	O
in	O
product	B-License
activation	I-License
.	O
</s>
<s>
In	O
graphical	O
environments	O
,	O
installers	B-Application
that	O
offer	O
a	O
wizard-based	O
interface	O
are	O
common	O
.	O
</s>
<s>
Attended	O
installers	B-Application
may	O
ask	O
users	O
to	O
help	O
mitigate	O
the	O
errors	O
.	O
</s>
<s>
For	O
instance	O
,	O
if	O
the	O
disk	O
in	O
which	O
the	O
computer	B-Application
program	I-Application
is	O
being	O
installed	O
was	O
full	O
,	O
the	O
installer	B-Application
may	O
ask	O
the	O
user	O
to	O
specify	O
another	O
target	O
path	O
or	O
clear	O
enough	O
space	O
in	O
the	O
disk	O
.	O
</s>
<s>
A	O
common	O
misconception	O
is	O
unarchivation	O
,	O
which	O
is	O
not	O
considered	O
an	O
installation	B-Application
action	O
because	O
it	O
does	O
not	O
include	O
user	O
choices	O
,	O
such	O
as	O
accepting	O
or	O
declining	O
EULA	O
.	O
</s>
<s>
A	O
"	O
silent	B-Application
installation	I-Application
"	O
is	O
an	O
installation	B-Application
that	O
does	O
not	O
display	O
messages	O
or	O
windows	O
during	O
its	O
progress	O
.	O
</s>
<s>
"	O
Silent	B-Application
installation	I-Application
"	O
is	O
not	O
the	O
same	O
as	O
"	O
unattended	O
installation	B-Application
"	O
(	O
see	O
below	O
)	O
:	O
All	O
silent	B-Application
installations	I-Application
are	O
unattended	O
but	O
not	O
all	O
unattended	O
installations	B-Application
are	O
silent	O
.	O
</s>
<s>
The	O
reason	O
behind	O
a	O
silent	B-Application
installation	I-Application
may	O
be	O
convenience	O
or	O
subterfuge	O
.	O
</s>
<s>
For	O
normal	O
users	O
silent	B-Application
installation	I-Application
is	O
not	O
of	O
much	O
use	O
,	O
but	O
in	O
bigger	O
organizations	O
where	O
thousands	O
of	O
users	O
work	O
,	O
deploying	O
the	O
applications	B-Application
becomes	O
a	O
typical	O
task	O
and	O
for	O
that	O
reason	O
silent	B-Application
installation	I-Application
is	O
performed	O
so	O
that	O
the	O
application	O
is	O
installed	O
in	O
the	O
background	O
without	O
affecting	O
the	O
work	O
of	O
the	O
user	O
.	O
</s>
<s>
Silently	O
installing	O
a	O
software	B-Application
program	I-Application
can	O
be	O
used	O
to	O
deploy	O
a	O
program	O
on	O
networks	O
in	O
educational	O
institutions	O
,	O
including	O
primary	O
and	O
secondary	O
education	O
and	O
universities	O
,	O
in	O
addition	O
to	O
business	O
,	O
government	O
,	O
and	O
corporate	O
networks	O
.	O
</s>
<s>
The	O
person	O
managing	O
the	O
silent	B-Application
installation	I-Application
can	O
choose	O
to	O
add	O
a	O
desktop	O
shortcut	O
,	O
for	O
example	O
,	O
to	O
silently	O
install	O
Google	O
Drive	O
with	O
a	O
desktop	O
shortcut	O
:	O
</s>
<s>
Installation	B-Application
that	O
is	O
performed	O
without	O
user	O
interaction	O
during	O
its	O
progress	O
or	O
with	O
no	O
user	O
present	O
at	O
all	O
.	O
</s>
<s>
One	O
of	O
the	O
reasons	O
to	O
use	O
this	O
approach	O
is	O
to	O
automate	O
the	O
installation	B-Application
of	O
a	O
large	O
number	O
of	O
systems	O
.	O
</s>
<s>
An	O
unattended	O
installation	B-Application
either	O
does	O
not	O
require	O
the	O
user	O
to	O
supply	O
anything	O
or	O
has	O
received	O
all	O
necessary	O
input	O
prior	O
to	O
the	O
start	O
of	O
installation	B-Application
.	O
</s>
<s>
Such	O
input	O
may	O
be	O
in	O
the	O
form	O
of	O
command	B-Application
line	I-Application
switches	O
or	O
an	O
answer	B-Application
file	I-Application
,	O
a	O
file	B-Operating_System
that	O
contains	O
all	O
the	O
necessary	O
parameters	O
.	O
</s>
<s>
Windows	B-Application
XP	I-Application
and	O
most	B-Operating_System
Linux	I-Operating_System
distributions	I-Operating_System
are	O
examples	O
of	O
operating	B-General_Concept
systems	I-General_Concept
that	O
can	O
be	O
installed	O
with	O
an	O
answer	B-Application
file	I-Application
.	O
</s>
<s>
In	O
unattended	O
installation	B-Application
,	O
it	O
is	O
assumed	O
that	O
there	O
is	O
no	O
user	O
to	O
help	O
mitigate	O
errors	O
.	O
</s>
<s>
For	O
instance	O
,	O
if	O
the	O
installation	B-Application
medium	O
was	O
faulty	O
,	O
the	O
installer	B-Application
should	O
fail	O
the	O
installation	B-Application
,	O
as	O
there	O
is	O
no	O
user	O
to	O
fix	O
the	O
fault	O
or	O
replace	O
the	O
medium	O
.	O
</s>
<s>
Unattended	O
installers	B-Application
may	O
record	O
errors	O
in	O
a	O
computer	B-Application
log	I-Application
for	O
later	O
review	O
.	O
</s>
<s>
Installation	B-Application
performed	O
without	O
using	O
a	O
computer	B-Device
monitor	I-Device
connected	O
.	O
</s>
<s>
In	O
attended	O
forms	O
of	O
headless	O
installation	B-Application
,	O
another	O
machine	O
connects	O
to	O
the	O
target	O
machine	O
(	O
for	O
instance	O
,	O
via	O
a	O
local	B-General_Concept
area	I-General_Concept
network	I-General_Concept
)	O
and	O
takes	O
over	O
the	O
display	O
output	O
.	O
</s>
<s>
Since	O
a	O
headless	O
installation	B-Application
does	O
not	O
need	O
a	O
user	O
at	O
the	O
location	O
of	O
the	O
target	O
computer	O
,	O
unattended	O
headless	O
installers	B-Application
may	O
be	O
used	O
to	O
install	O
a	O
program	O
on	O
multiple	O
machines	O
at	O
the	O
same	O
time	O
.	O
</s>
<s>
An	O
installation	B-Application
process	O
that	O
runs	O
on	O
a	O
preset	O
time	O
or	O
when	O
a	O
predefined	O
condition	O
transpires	O
,	O
as	O
opposed	O
to	O
an	O
installation	B-Application
process	O
that	O
starts	O
explicitly	O
on	O
a	O
user	O
's	O
command	O
.	O
</s>
<s>
For	O
instance	O
,	O
a	O
system	B-Application
administrator	I-Application
willing	O
to	O
install	O
a	O
later	O
version	O
of	O
a	O
computer	B-Application
program	I-Application
that	O
is	O
being	O
used	O
can	O
schedule	O
that	O
installation	B-Application
to	O
occur	O
when	O
that	O
program	O
is	O
not	O
running	O
.	O
</s>
<s>
An	O
operating	B-General_Concept
system	I-General_Concept
may	O
automatically	O
install	O
a	O
device	B-Application
driver	I-Application
for	O
a	O
device	O
that	O
the	O
user	O
connects	O
.	O
</s>
<s>
(	O
See	O
plug	B-Device
and	I-Device
play	I-Device
.	O
)	O
</s>
<s>
A	O
clean	O
installation	B-Application
is	O
one	O
that	O
is	O
done	O
in	O
the	O
absence	O
of	O
any	O
interfering	O
elements	O
such	O
as	O
old	O
versions	O
of	O
the	O
computer	B-Application
program	I-Application
being	O
installed	O
or	O
leftovers	O
from	O
a	O
previous	O
installation	B-Application
.	O
</s>
<s>
In	O
particular	O
,	O
the	O
clean	O
installation	B-Application
of	O
an	O
operating	B-General_Concept
system	I-General_Concept
is	O
an	O
installation	B-Application
in	O
which	O
the	O
target	O
disk	B-Application
partition	I-Application
is	O
erased	O
before	O
installation	B-Application
.	O
</s>
<s>
Since	O
the	O
interfering	O
elements	O
are	O
absent	O
,	O
a	O
clean	O
installation	B-Application
may	O
succeed	O
where	O
an	O
unclean	O
installation	B-Application
may	O
fail	O
or	O
may	O
take	O
significantly	O
longer	O
.	O
</s>
<s>
Network	O
installation	B-Application
,	O
shortened	O
netinstall	O
,	O
is	O
an	O
installation	B-Application
of	O
a	O
program	O
from	O
a	O
shared	B-General_Concept
network	I-General_Concept
resource	I-General_Concept
that	O
may	O
be	O
done	O
by	O
installing	O
a	O
minimal	O
system	O
before	O
proceeding	O
to	O
download	O
further	O
packages	O
over	O
the	O
network	O
.	O
</s>
<s>
This	O
may	O
simply	O
be	O
a	O
copy	O
of	O
the	O
original	O
media	O
but	O
software	O
publishers	O
which	O
offer	O
site	O
licenses	O
for	O
institutional	O
customers	O
may	O
provide	O
a	O
version	O
intended	O
for	O
installation	B-Application
over	O
a	O
network	O
.	O
</s>
<s>
An	O
installation	B-Application
program	I-Application
or	O
installer	B-Application
is	O
a	O
computer	B-Application
program	I-Application
that	O
installs	O
files	O
,	O
such	O
as	O
applications	B-Application
,	O
drivers	B-Application
,	O
or	O
other	O
software	O
,	O
onto	O
a	O
computer	O
.	O
</s>
<s>
Some	O
installers	B-Application
are	O
specifically	O
made	O
to	O
install	O
the	O
files	O
they	O
contain	O
;	O
other	O
installers	B-Application
are	O
general-purpose	O
and	O
work	O
by	O
reading	O
the	O
contents	O
of	O
the	O
software	B-Application
package	I-Application
to	O
be	O
installed	O
.	O
</s>
<s>
They	O
exist	O
both	O
as	O
"	O
standalone	O
installer	B-Application
"	O
(	O
or	O
"	O
offline	O
installer	B-Application
"	O
)	O
and	O
"	O
web	O
installer	B-Application
"	O
(	O
or	O
"	O
online	O
installer	B-Application
"	O
)	O
,	O
where	O
the	O
former	O
allows	O
for	O
offline	O
installation	B-Application
as	O
it	O
contains	O
all	O
installation	B-Application
files	O
,	O
whereas	O
the	O
latter	O
needs	O
to	O
download	O
files	O
necessary	O
for	O
installation	B-Application
from	O
the	O
web	O
at	O
the	O
time	O
of	O
installation	B-Application
.	O
</s>
<s>
The	O
differences	O
between	O
a	O
package	B-Application
management	I-Application
system	I-Application
and	O
an	O
installer	B-Application
are	O
:	O
</s>
<s>
During	O
an	O
installation	B-Application
of	O
a	O
computer	B-Application
program	I-Application
,	O
it	O
is	O
sometimes	O
necessary	O
to	O
update	O
the	O
installer	B-Application
or	O
package	B-Application
manager	I-Application
itself	O
.	O
</s>
<s>
To	O
make	O
this	O
possible	O
,	O
a	O
technique	O
called	O
bootstrapping	B-Application
is	O
used	O
.	O
</s>
<s>
The	O
common	O
pattern	O
for	O
this	O
is	O
to	O
use	O
small	O
executable	B-Application
files	I-Application
which	O
update	O
the	O
installer	B-Application
and	O
starts	O
the	O
real	O
installation	B-Application
after	O
the	O
update	O
.	O
</s>
<s>
This	O
small	O
executable	B-Application
is	O
called	O
bootstrapper	O
.	O
</s>
<s>
Sometimes	O
the	O
bootstrapper	O
installs	O
other	O
prerequisites	O
for	O
the	O
software	O
during	O
the	O
bootstrapping	B-Application
process	O
too	O
.	O
</s>
<s>
Cross-platform	O
installer	B-Application
builders	O
produce	O
installers	B-Application
that	O
run	O
on	O
Windows	O
,	O
macOS	B-Application
and	O
Linux	B-Application
.	O
</s>
<s>
An	O
example	O
is	O
InstallAnywhere	B-Application
by	O
Flexera	O
Software	O
.	O
</s>
<s>
Windows	B-Device
NT	I-Device
family	I-Device
includes	O
an	O
installation	B-Application
API	B-Application
and	O
an	O
associated	O
service	O
called	O
Windows	B-Application
Installer	I-Application
.	O
</s>
<s>
Microsoft	O
provides	O
a	O
minimum	O
level	O
of	O
tools	O
required	O
to	O
create	O
installers	B-Application
using	O
Windows	B-Application
Installer	I-Application
in	O
the	O
freely	O
available	O
Windows	B-Application
SDK	I-Application
,	O
instead	O
focusing	O
on	O
the	O
API	B-Application
to	O
allow	O
developers	O
and	O
third	O
parties	O
to	O
leverage	O
it	O
in	O
creating	O
custom	O
installers	B-Application
.	O
</s>
<s>
Third	O
party	O
tools	O
may	O
supporting	O
create	O
installers	B-Application
using	O
this	O
API	B-Application
to	O
speed	O
the	O
process	O
.	O
</s>
<s>
Examples	O
include	O
InstallShield	B-Application
(	O
Flexera	O
Software	O
)	O
and	O
WiX	B-Language
(	O
Outercurve	O
Foundation	O
)	O
.	O
</s>
<s>
Installation	B-Application
authoring	O
tools	O
that	O
do	O
not	O
rely	O
on	O
Windows	B-Application
Installer	I-Application
include	O
Wise	O
Installation	B-Application
Studio	O
(	O
Wise	B-Application
Solutions	I-Application
,	I-Application
Inc	I-Application
.	I-Application
)	O
,	O
Installer	B-Application
VISE	I-Application
(	O
MindVision	O
Software	O
)	O
,	O
Visual	B-Application
Installer	I-Application
(	O
SamLogic	O
)	O
,	O
NSIS	B-Language
,	O
Clickteam	B-Application
,	O
InnoSetup	B-Language
and	O
InstallSimple	O
.	O
</s>
<s>
macOS	B-Application
includes	O
Installer	B-Application
,	O
a	O
native	O
package	B-Application
manager	I-Application
.	O
</s>
<s>
macOS	B-Application
also	O
includes	O
a	O
separate	O
software	O
updating	O
application	O
,	O
Software	O
Update	O
but	O
only	O
supports	O
Apple	O
and	O
system	B-Application
software	I-Application
.	O
</s>
<s>
Included	O
in	O
the	O
dock	O
as	O
of	O
10.6.6	O
,	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
shares	O
many	O
attributes	O
with	O
the	O
successful	O
App	B-Application
Store	I-Application
for	O
iOS	O
devices	O
,	O
such	O
as	O
a	O
similar	O
app	O
approval	O
process	O
,	O
the	O
use	O
of	O
Apple	O
ID	O
for	O
purchases	O
,	O
and	O
automatic	O
installation	B-Application
and	O
updating	O
.	O
</s>
<s>
Although	O
this	O
is	O
Apple	O
's	O
preferred	O
delivery	O
method	O
for	O
macOS	B-Application
,	O
previously	O
purchased	O
licenses	O
can	O
not	O
be	O
transferred	O
to	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
for	O
downloading	O
or	O
automatic	O
updating	O
.	O
</s>
<s>
Commercial	O
applications	B-Application
for	O
macOS	B-Application
may	O
also	O
use	O
a	O
third-party	O
installer	B-Application
,	O
such	O
as	O
Mac	O
version	O
of	O
Installer	B-Application
VISE	I-Application
(	O
MindVision	O
Software	O
)	O
or	O
InstallerMaker	O
(	O
StuffIt	B-Application
)	O
.	O
</s>
<s>
A	O
system	O
installer	B-Application
is	O
the	O
software	O
that	O
is	O
used	O
to	O
set	O
up	O
and	O
install	O
an	O
operating	B-General_Concept
system	I-General_Concept
onto	O
a	O
device	O
.	O
</s>
<s>
Examples	O
of	O
Linux	B-Application
system	O
installers	B-Application
:	O
</s>
<s>
Calamares	O
:	O
used	O
by	O
multiple	O
Linux	B-Application
distributions	I-Application
(	O
incl	O
.	O
</s>
<s>
Another	O
example	O
is	O
found	O
in	O
the	O
Haiku	B-Language
operating	I-Language
system	I-Language
,	O
which	O
uses	O
a	O
utility	O
called	O
Haiku	B-Language
Installer	B-Application
to	O
install	O
itself	O
onto	O
a	O
device	O
after	O
booting	B-Operating_System
from	O
a	O
live	O
CD	O
or	O
live	O
USB	O
.	O
</s>
