<s>
OS/VS	B-Application
may	O
refer	O
to	O
one	O
of	O
a	O
number	O
of	O
IBM	O
operating	O
systems	O
for	O
System/370	B-Device
and	O
successors	O
characterized	O
by	O
the	O
use	O
of	O
virtual	B-Architecture
storage	I-Architecture
(	O
VS	O
)	O
:	O
</s>
<s>
IBM	O
OS/VS2	B-Application
,	O
successor	O
to	O
MVT	O
,	O
including	O
:	O
</s>
<s>
OS/VS1	B-Application
had	O
no	O
follow-on	O
systems	O
.	O
</s>
<s>
Successor	O
operating	O
systems	O
of	O
OS/VS2	B-Application
dropped	O
the	O
"	O
OS/VS	B-Application
"	O
tag	O
and	O
became	O
simply	O
"	O
MVS/SE	O
"	O
,	O
"	O
MVS/SP	O
"	O
,	O
"	O
MVS/XA	O
"	O
,	O
etc	O
.	O
</s>
