<s>
In	O
computing	O
,	O
bit	B-Language
numbering	I-Language
is	O
the	O
convention	O
used	O
to	O
identify	O
the	O
bit	B-Language
positions	I-Language
in	O
a	O
binary	O
number	O
.	O
</s>
<s>
In	O
computing	O
,	O
the	O
least	O
significant	B-Language
bit	I-Language
(	O
LSb	O
)	O
is	O
the	O
bit	B-Language
position	I-Language
in	O
a	O
binary	O
integer	O
representing	O
the	O
binary	O
1s	O
place	O
of	O
the	O
integer	O
.	O
</s>
<s>
Similarly	O
,	O
the	O
most	O
significant	B-Language
bit	I-Language
(	O
MSb	O
)	O
represents	O
the	O
highest-order	O
place	O
of	O
the	O
binary	O
integer	O
.	O
</s>
<s>
In	O
both	O
cases	O
,	O
the	O
LSb	O
and	O
MSb	O
correlate	O
directly	O
to	O
the	O
least	O
significant	O
digit	O
and	O
most	O
significant	O
digit	O
of	O
a	O
decimal	B-Application
integer	O
.	O
</s>
<s>
In	O
digital	O
steganography	O
,	O
sensitive	O
messages	O
may	O
be	O
concealed	O
by	O
manipulating	O
and	O
storing	O
information	O
in	O
the	O
least	O
significant	B-Language
bits	I-Language
of	O
an	O
image	O
or	O
a	O
sound	O
file	O
.	O
</s>
<s>
The	O
user	O
may	O
later	O
recover	O
this	O
information	O
by	O
extracting	O
the	O
least	O
significant	B-Language
bits	I-Language
of	O
the	O
manipulated	O
pixels	O
to	O
recover	O
the	O
original	O
message	O
.	O
</s>
<s>
This	O
table	O
illustrates	O
an	O
example	O
of	O
decimal	B-Application
value	O
of	O
149	O
and	O
the	O
location	O
of	O
LSb	O
.	O
</s>
<s>
In	O
this	O
particular	O
example	O
,	O
the	O
position	O
of	O
unit	O
value	O
(	O
decimal	B-Application
1	O
or	O
0	O
)	O
is	O
located	O
in	O
bit	B-Language
position	I-Language
0	O
(	O
n	O
=	O
0	O
)	O
.	O
</s>
<s>
MSb	O
stands	O
for	O
most	O
significant	B-Language
bit	I-Language
,	O
while	O
LSb	O
stands	O
for	O
least	O
significant	B-Language
bit	I-Language
.	O
</s>
<s>
The	O
expressions	O
most	B-Language
significant	I-Language
bit	I-Language
first	I-Language
and	O
least	O
significant	B-Language
bit	I-Language
at	O
last	O
are	O
indications	O
on	O
the	O
ordering	O
of	O
the	O
sequence	O
of	O
the	O
bits	O
in	O
the	O
bytes	O
sent	O
over	O
a	O
wire	O
in	O
a	O
serial	B-Protocol
transmission	I-Protocol
protocol	O
or	O
in	O
a	O
stream	O
(	O
e.g.	O
</s>
<s>
Most	B-Language
significant	I-Language
bit	I-Language
first	I-Language
means	O
that	O
the	O
most	O
significant	B-Language
bit	I-Language
will	O
arrive	O
first	O
:	O
hence	O
e.g.	O
</s>
<s>
Least	B-Language
significant	I-Language
bit	I-Language
first	I-Language
means	O
that	O
the	O
least	O
significant	B-Language
bit	I-Language
will	O
arrive	O
first	O
:	O
hence	O
e.g.	O
</s>
<s>
When	O
the	O
bit	B-Language
numbering	I-Language
starts	O
at	O
zero	O
for	O
the	O
least	O
significant	B-Language
bit	I-Language
(	O
LSb	O
)	O
the	O
numbering	O
scheme	O
is	O
called	O
LSb	O
0	O
.	O
</s>
<s>
This	O
bit	B-Language
numbering	I-Language
method	O
has	O
the	O
advantage	O
that	O
for	O
any	O
unsigned	B-Algorithm
number	I-Algorithm
the	O
value	O
of	O
the	O
number	O
can	O
be	O
calculated	O
by	O
using	O
exponentiation	O
with	O
the	O
bit	O
number	O
and	O
a	O
base	O
of2	O
.	O
</s>
<s>
When	O
the	O
bit	B-Language
numbering	I-Language
starts	O
at	O
zero	O
for	O
the	O
most	O
significant	B-Language
bit	I-Language
(	O
MSb	O
)	O
the	O
numbering	O
scheme	O
is	O
called	O
MSb	O
0	O
.	O
</s>
<s>
ALGOL	B-Language
68	I-Language
's	O
elem	O
operator	O
is	O
effectively	O
"	O
MSb1	O
bit	B-Language
numbering	I-Language
"	O
as	O
the	O
bits	O
are	O
numbered	O
from	O
left	O
to	O
right	O
,	O
with	O
the	O
first	O
bit	O
(	O
bits	O
elem	O
1	O
)	O
being	O
the	O
"	O
most	O
significant	B-Language
bit	I-Language
"	O
,	O
and	O
the	O
expression	O
(	O
bits	O
elem	O
bits	O
width	O
)	O
giving	O
the	O
"	O
least	O
significant	B-Language
bit	I-Language
"	O
.	O
</s>
<s>
Similarly	O
,	O
when	O
bits	O
are	O
coerced	O
(	O
typecast	O
)	O
to	O
an	O
array	O
of	O
Boolean	O
( []	O
bool	O
bits	O
)	O
,	O
the	O
first	O
element	O
of	O
this	O
array	O
(	O
bits[ lwb	O
bits ]	O
)	O
is	O
again	O
the	O
"	O
most	O
significant	B-Language
bit	I-Language
"	O
.	O
</s>
<s>
PL/I	B-Language
numbers	O
strings	O
starting	O
with	O
1	O
for	O
the	O
leftmost	O
bit	O
.	O
</s>
<s>
The	O
Fortran	B-Application
function	O
uses	O
LSb0	O
numbering	O
.	O
</s>
