<s>
Quarter	B-Device
inch	I-Device
cartridge	I-Device
tape	O
(	O
abbreviated	O
QIC	O
,	O
commonly	O
pronounced	O
"	O
quick	O
"	O
)	O
is	O
a	O
magnetic	B-Architecture
tape	I-Architecture
data	I-Architecture
storage	I-Architecture
format	O
introduced	O
by	O
3M	O
in	O
1972	O
,	O
with	O
derivatives	O
still	O
in	O
use	O
as	O
of	O
2016	O
.	O
</s>
<s>
This	O
is	O
in	O
contrast	O
to	O
cassette	B-Device
tapes	I-Device
or	O
DATs	O
,	O
where	O
the	O
tape	O
is	O
moved	O
past	O
the	O
head	O
by	O
a	O
capstan	O
and	O
pinch	O
wheel	O
,	O
but	O
the	O
takeup	O
reel	O
is	O
driven	O
by	O
a	O
servo	B-Algorithm
motor	I-Algorithm
or	O
slipping	O
clutch	O
.	O
</s>
<s>
For	O
newer	O
QIC	O
drives	O
that	O
use	O
a	O
SCSI	B-Architecture
interface	O
,	O
there	O
is	O
a	O
SCSI	B-Architecture
"	O
RETENSION	O
"	O
command	O
to	O
do	O
this	O
.	O
</s>
<s>
The	O
original	O
product	O
,	O
the	O
DC300	B-Device
,	O
has	O
300	O
feet	O
of	O
tape	O
and	O
holds	O
200	O
kilobytes	O
.	O
</s>
<s>
Later	O
QIC	O
DC	O
drives	O
usually	O
use	O
the	O
QIC-104/111	O
SCSI	B-Architecture
and	O
QIC-121	O
SCSI-2	O
interfaces	O
.	O
</s>
<s>
This	O
is	O
by	O
size	O
and	O
is	O
small	O
enough	O
to	O
fit	O
in	O
a	O
drive	B-Device
bay	I-Device
.	O
</s>
<s>
The	O
QIC-40	O
and	O
QIC-80	O
were	O
designed	O
to	O
use	O
the	O
same	O
floppy	B-Device
disk	I-Device
controller	I-Device
as	O
a	O
standard	O
floppy	B-Device
drive	I-Device
,	O
with	O
MFM	B-Protocol
or	O
RLL	B-Protocol
encoding	I-Protocol
.	O
</s>
<s>
Travan	B-Device
is	O
an	O
evolution	O
of	O
the	O
QIC	O
Minicartridge	O
format	O
,	O
sold	O
for	O
personal	B-Device
computer	I-Device
use	O
.	O
</s>
<s>
SLR	B-Device
is	O
Tandberg	O
Data	O
's	O
name	O
for	O
its	O
line	O
of	O
high-capacity	O
QIC	O
data	O
cartridge	O
drives	O
.	O
</s>
<s>
As	O
of	O
2005	O
,	O
Tandberg	O
was	O
the	O
only	O
manufacturer	O
of	O
SLR/QIC	O
drives	O
in	O
the	O
world	O
.	O
</s>
<s>
The	O
largest	O
SLR	B-Device
drive	O
can	O
hold	O
70	O
GB	O
of	O
data	O
(	O
140	O
GB	O
compressed	O
)	O
.	O
</s>
<s>
QIC-Wide	B-Device
drives	O
are	O
backwards	O
compatible	O
with	O
QIC	O
tapes	O
.	O
</s>
<s>
In	O
many	O
cases	O
a	O
standard	O
QIC	O
drive	O
and	O
backup	O
package	O
can	O
use	O
the	O
extended	O
length	O
to	O
store	O
additional	O
data	O
,	O
however	O
in	O
some	O
cases	O
an	O
attempt	O
to	O
reformat	O
a	O
QIC-EX	B-Device
cartridge	O
fails	O
since	O
the	O
time	O
taken	O
to	O
traverse	O
the	O
extra	O
length	O
triggers	O
a	O
timeout	O
in	O
the	O
drive	O
or	O
controlling	O
software	O
intended	O
to	O
detect	O
a	O
broken	O
tape	O
.	O
</s>
<s>
An	O
interface	O
standard	O
for	O
tape	O
drives	O
using	O
the	O
ATAPI	O
(	O
IDE	B-Protocol
)	O
interface	O
.	O
</s>
