<s>
The	O
Jaz	B-Device
drive	I-Device
was	O
a	O
removable	O
hard	B-Device
disk	I-Device
storage	I-Device
system	O
sold	O
by	O
the	O
Iomega	O
company	O
from	O
1995	O
to	O
2002	O
.	O
</s>
<s>
Following	O
the	O
success	O
of	O
the	O
Iomega	B-Operating_System
Zip	I-Operating_System
drive	I-Operating_System
,	O
which	O
original	O
version	O
stores	O
data	O
on	O
high-capacity	B-Device
floppy	I-Device
disks	O
with	O
100	O
MB	O
nominal	O
capacity	O
,	O
and	O
later	O
250	O
and	O
then	O
750	O
MB	O
,	O
the	O
company	O
developed	O
and	O
released	O
the	O
Jaz	B-Device
drive	I-Device
.	O
</s>
<s>
First	O
shipping	O
to	O
OEMs	O
in	O
December	O
1995	O
,	O
the	O
Jaz	B-Device
drive	I-Device
featured	O
1	O
GB	O
capacity	O
per	O
removable	O
disk	O
.	O
</s>
<s>
A	O
new	O
Jaz	B-Device
drive	I-Device
model	O
,	O
released	O
in	O
February	O
1998	O
,	O
increased	O
the	O
individual	O
disk	O
capacity	O
to	O
2	O
GB	O
.	O
</s>
<s>
The	O
Jaz	B-Device
drive	I-Device
uses	O
a	O
SCSI	B-Architecture
interface	O
,	O
with	O
both	O
internal	O
and	O
external	O
drive	O
models	O
.	O
</s>
<s>
Iomega	O
produced	O
a	O
Jaz	O
Jet	O
SCSI	B-Architecture
adapter	O
PCI	B-Protocol
card	I-Protocol
for	O
PCs	B-Device
.	O
</s>
<s>
Iomega	O
also	O
produced	O
a	O
number	O
of	O
external	O
adapters	O
,	O
including	O
the	O
Jaz	O
Traveller	O
interface	O
that	O
connected	O
it	O
to	O
a	O
standard	O
parallel	B-Device
port	I-Device
,	O
and	O
,	O
later	O
,	O
a	O
SCSI-USB	O
adapter	O
and	O
SCSI-Firewire	O
adapter	O
.	O
</s>
<s>
The	O
Jaz	O
never	O
attained	O
as	O
much	O
success	O
or	O
market	O
penetration	O
as	O
the	O
Zip	B-Operating_System
drive	I-Operating_System
.	O
</s>
<s>
While	O
the	O
Zip	B-Operating_System
drive	I-Operating_System
was	O
marketed	O
as	O
a	O
high-capacity	B-Device
floppy	I-Device
disk	O
for	O
the	O
home	O
and	O
small	O
office/home	O
office	O
(	O
SOHO	O
)	O
markets	O
,	O
the	O
Jaz	B-Device
drive	I-Device
was	O
originally	O
advertised	O
as	O
a	O
higher-end	O
product	O
.	O
</s>
<s>
SCSI	B-Architecture
interfaces	O
were	O
standard	O
in	O
Apple	B-Device
Macintosh	I-Device
computers	I-Device
but	O
were	O
rare	O
in	O
the	O
much	O
larger	O
market	O
of	O
end-user	O
PCs	B-Device
,	O
usually	O
requiring	O
an	O
extra	O
interface	O
card	O
to	O
be	O
bought	O
and	O
installed	O
.	O
</s>
<s>
The	O
rising	O
popularity	O
and	O
decreasing	O
price	O
of	O
CD-R/CD	O
-RW	O
drives	O
greatly	O
hurt	O
the	O
success	O
of	O
the	O
Jaz	B-Device
drive	I-Device
,	O
offering	O
a	O
much	O
lower	O
price-per-megabyte	O
and	O
the	O
convenience	O
of	O
the	O
CD	O
media	O
being	O
readable	O
in	O
almost	O
any	O
standard	O
CD-ROM	O
drive	O
.	O
</s>
<s>
Earlier	O
Jaz	B-Device
drives	I-Device
could	O
overheat	O
,	O
and	O
loading-mechanism	O
jams	O
could	O
leave	O
a	O
disk	O
stuck	O
in	O
the	O
drive	O
.	O
</s>
<s>
Jaz	B-Device
drives	I-Device
are	O
hard-disk	B-Device
technology	O
,	O
making	O
them	O
susceptible	O
to	O
contaminants	O
in	O
the	O
drive	O
;	O
dust	O
and	O
grit	O
could	O
be	O
introduced	O
through	O
a	O
hole	O
in	O
the	O
disk	O
case	O
where	O
the	O
motor	O
drove	O
the	O
platters	O
,	O
and	O
any	O
dust	O
built	O
up	O
on	O
the	O
external	O
case	O
could	O
enter	O
the	O
drive	O
with	O
its	O
next	O
insertion	O
.	O
</s>
<s>
Some	O
drives	O
also	O
had	O
firmware	B-Application
problems	O
.	O
</s>
<s>
The	O
later	O
Iomega	B-Device
REV	I-Device
drive	O
tried	O
to	O
use	O
similar	O
technology	O
to	O
address	O
the	O
same	O
market	O
segment	O
that	O
the	O
Jaz	B-Device
drive	I-Device
had	O
reached	O
.	O
</s>
<s>
The	O
REV	B-Device
's	O
design	O
is	O
derived	O
partly	O
from	O
the	O
IBM	O
2310	O
's	O
use	O
of	O
a	O
"	O
voice	O
coil	O
actuator	O
(	O
VCA	O
)	O
motor	O
to	O
improve	O
the	O
reliability	O
and	O
reduce	O
the	O
seek	O
time	O
of	O
an	O
HDD	O
's	O
read	O
–	O
write	O
heads	O
"	O
in	O
a	O
removable	O
media	O
cartridge	O
.	O
</s>
<s>
Neither	O
the	O
Jaz	B-Device
drive	I-Device
nor	O
the	O
REV	B-Device
drive	I-Device
copied	O
the	O
IBM	O
3340	O
in	O
making	O
the	O
heads	O
a	O
part	O
of	O
the	O
cartridge	O
,	O
although	O
the	O
REV	B-Device
drive	I-Device
moved	O
the	O
motor	O
into	O
the	O
cartridge	O
—	O
which	O
the	O
IBM	O
3340	O
had	O
not	O
done	O
.	O
</s>
<s>
It	O
was	O
left	O
to	O
the	O
RDX	B-Device
Technology	I-Device
drive	O
to	O
move	O
the	O
heads	O
into	O
the	O
cartridge	O
,	O
which	O
increased	O
reliability	O
by	O
essentially	O
making	O
the	O
cartridge	O
an	O
electro-mechanical	O
duplicate	O
of	O
a	O
modern	O
external	O
disk	O
drive	O
.	O
</s>
