<s>
This	O
is	O
a	O
list	O
of	O
Linux	B-Application
distributions	I-Application
that	O
can	O
be	O
run	O
entirely	O
from	O
a	O
computer	O
's	O
RAM	B-Architecture
,	O
meaning	O
that	O
once	O
the	O
OS	B-General_Concept
has	O
been	O
loaded	O
to	O
the	O
RAM	B-Architecture
,	O
the	O
media	O
it	O
was	O
loaded	O
from	O
can	O
be	O
completely	O
removed	O
,	O
and	O
the	O
distribution	O
will	O
run	O
the	O
PC	B-Device
through	O
the	O
RAM	B-Architecture
only	O
.	O
</s>
<s>
This	O
ability	O
allows	O
them	O
to	O
be	O
very	O
fast	O
,	O
since	O
reading	O
and	O
writing	O
data	O
from/to	O
RAM	B-Architecture
is	O
much	O
faster	O
than	O
on	O
a	O
hard	B-Device
disk	I-Device
drive	I-Device
or	O
solid	B-Device
state	I-Device
drive	I-Device
.	O
</s>
<s>
Many	O
of	O
these	O
operating	B-General_Concept
systems	I-General_Concept
will	O
load	O
from	O
a	O
removable	B-Device
media	I-Device
such	O
as	O
a	O
Live	O
CD	B-Device
or	O
a	O
Live	O
USB	O
stick	O
.	O
</s>
<s>
A	O
"	O
frugal	O
"	O
install	O
can	O
also	O
often	O
be	O
completed	O
,	O
allowing	O
loading	O
from	O
a	O
hard	B-Device
disk	I-Device
drive	I-Device
instead	O
.	O
</s>
<s>
This	O
feature	O
is	O
implemented	O
in	O
live-initramfs	O
and	O
allows	O
the	O
user	O
to	O
run	O
a	O
live	O
distro	O
that	O
does	O
not	O
run	O
from	O
ram	B-Architecture
by	O
default	O
by	O
adding	O
toram	O
to	O
the	O
kernel	O
boot	O
parameters	O
.	O
</s>
<s>
Additionally	O
some	O
distributions	O
can	O
be	O
configured	O
to	O
run	O
from	O
RAM	B-Architecture
,	O
such	O
as	O
Ubuntu	B-Operating_System
using	O
the	O
toram	O
option	O
included	O
in	O
the	O
Casper	O
scripts	O
.	O
</s>
