<s>
Atomic	B-Operating_System
semantics	I-Operating_System
is	O
a	O
type	O
of	O
guarantee	O
provided	O
by	O
a	O
data	O
register	O
shared	O
by	O
several	O
processors	B-General_Concept
in	O
a	O
parallel	B-Operating_System
machine	I-Operating_System
or	O
in	O
a	O
network	O
of	O
computers	O
working	O
together	O
.	O
</s>
<s>
Atomic	B-Operating_System
semantics	I-Operating_System
are	O
very	O
strong	O
.	O
</s>
<s>
Example	O
:	O
We	O
know	O
that	O
an	O
atomic	O
register	O
is	O
one	O
that	O
is	O
linearizable	O
to	O
a	O
sequential	O
safe	B-Operating_System
register	I-Operating_System
.	O
</s>
