<s>
The	O
IBM	B-Device
3590	I-Device
is	O
a	O
series	O
of	O
tape	O
drives	O
and	O
corresponding	O
magnetic	B-Architecture
tape	I-Architecture
data	I-Architecture
storage	I-Architecture
media	O
formats	O
developed	O
by	O
IBM	O
.	O
</s>
<s>
The	O
first	O
drive	O
,	O
having	O
the	O
IBM	O
product	O
number	O
3590	O
,	O
was	O
introduced	O
in	O
1995	O
under	O
the	O
nickname	O
Magstar	B-Device
.	O
</s>
<s>
The	O
3590	O
series	O
of	O
tape	O
drives	O
and	O
media	O
are	O
not	O
compatible	O
with	O
the	O
IBM	B-Device
3592	I-Device
line	O
of	O
drives	O
that	O
replaced	O
it	O
.	O
</s>
<s>
This	O
family	O
superseded	O
the	O
IBM	B-Device
3480	I-Device
Family	I-Device
of	O
tape	O
drives	O
popular	O
in	O
1980s	O
and	O
1990s	O
.	O
</s>
<s>
Like	O
the	O
3480	B-Device
and	O
3592	B-Device
formats	O
,	O
this	O
tape	O
format	O
has	O
half	O
inch	O
tape	O
spooled	O
onto	O
4-by-5-by-1	O
inch	O
data	O
cartridges	O
containing	O
a	O
single	O
reel	O
.	O
</s>
<s>
Magstar	B-Device
tapes	O
and	O
drives	O
exist	O
in	O
128	O
,	O
256	O
and	O
384-track	O
versions	O
.	O
</s>
<s>
Unlike	O
DLT	O
,	O
LTO	O
or	O
3592	B-Device
drive	O
variants	O
,	O
the	O
3590	O
drive	O
is	O
not	O
capable	O
of	O
writing	O
at	O
a	O
lower	O
density	O
than	O
its	O
native	O
density	O
.	O
</s>
