<s>
S-OS	B-Application
is	O
a	O
simple	O
operating	B-General_Concept
system	I-General_Concept
mainly	O
for	O
Z80	B-General_Concept
based	O
computers	O
.	O
</s>
<s>
The	O
operating	B-General_Concept
system	I-General_Concept
was	O
first	O
presented	O
in	O
1986	O
in	O
the	O
Japanese	O
magazine	O
Oh	O
!	O
X	O
in	O
an	O
article	O
called	O
"	O
The	O
Sentinel	O
"	O
.	O
</s>
<s>
Exit	O
from	O
S-OS	B-Application
and	O
reboot	O
#	O
!	O
</s>
