<s>
DBOMP	B-Application
(	O
Database	O
Organization	O
and	O
Maintenance	O
Processor	O
)	O
was	O
an	O
early	O
hierarchical	B-General_Concept
database	I-General_Concept
system	O
from	O
IBM	O
for	O
DOS	B-Application
.	O
</s>
<s>
DBOMP	B-Application
was	O
introduced	O
in	O
the	O
late	O
1960s	O
as	O
a	O
successor	O
to	O
IBM	O
's	O
"	O
Bill	O
of	O
Materials	O
Processor	O
"	O
called	O
BOMP	O
,	O
introduced	O
in	O
1965	O
when	O
DOS	B-Application
became	O
available	O
.	O
</s>
<s>
DBOMP	B-Application
stored	O
records	O
on	O
disk	O
and	O
was	O
generalized	O
beyond	O
bill	O
of	O
materials	O
.	O
</s>
<s>
The	O
possibilities	O
were	O
recognised	O
with	O
the	O
announcement	O
of	O
DBOMP	B-Application
itself	O
,	O
where	O
the	O
basic	O
file	O
structures	O
and	O
inter-relationships	O
remained	O
the	O
same	O
,	O
but	O
the	O
files	O
were	O
renamed	O
to	O
make	O
them	O
less	O
manufacturing-specific	O
.	O
</s>
<s>
There	O
is	O
some	O
disagreement	O
as	O
to	O
whether	O
DBOMP	B-Application
should	O
be	O
called	O
a	O
hierarchical	O
or	O
a	O
network	B-General_Concept
database	I-General_Concept
.	O
</s>
<s>
This	O
was	O
a	O
marketing	O
competition	O
between	O
IBM	O
and	O
competitive	O
offerings	O
:	O
network	O
had	O
become	O
popular	O
,	O
and	O
BOMP	O
and	O
DBOMP	B-Application
did	O
have	O
network	O
characteristics	O
,	O
but	O
these	O
were	O
limited	O
.	O
</s>
<s>
The	O
structure	O
of	O
DBOMP	B-Application
databases	O
limited	O
its	O
use	O
to	O
CKD	B-Application
disk	I-Application
drives	O
with	O
no	O
more	O
than	O
511	O
cylinders	O
.	O
</s>
<s>
The	O
IBM	O
replacement	O
for	O
DBOMP	B-Application
was	O
the	O
DOS	B-Application
implementation	O
of	O
DL/I	O
database	O
,	O
where	O
the	O
pointer	O
information	O
was	O
carefully	O
shielded	O
from	O
the	O
program	O
.	O
</s>
<s>
The	O
structure	O
of	O
DBOMP	B-Application
files	O
heavily	O
influenced	O
later	O
databases	O
such	O
as	O
Cincom	B-Application
's	O
Total	O
.	O
</s>
