<s>
The	O
Indus	B-Device
GT	I-Device
is	O
a	O
-inch	O
floppy	B-Device
disk	I-Device
drive	I-Device
that	O
was	O
introduced	O
by	O
Indus	O
Systems	O
in	O
1983	O
for	O
the	O
Atari	B-Device
8-bit	I-Device
family	I-Device
.	O
</s>
<s>
It	O
was	O
later	O
released	O
for	O
the	O
Apple	B-Device
II	I-Device
and	O
Commodore	O
64	O
.	O
</s>
<s>
The	O
GT	O
drive	O
is	O
housed	O
in	O
a	O
black	O
metal	O
case	O
and	O
the	O
opening	O
in	O
the	O
front	O
for	O
the	O
floppy	B-Device
was	O
covered	O
by	O
a	O
flip-open	O
smoked	O
plexiglass	O
door	O
that	O
makes	O
the	O
unit	O
look	O
completely	O
sealed	O
when	O
closed	O
.	O
</s>
<s>
A	O
two-digit	O
seven-segment	B-General_Concept
LED	I-General_Concept
display	I-General_Concept
is	O
on	O
the	O
face	O
of	O
the	O
unit	O
behind	O
the	O
door	O
,	O
but	O
remains	O
readable	O
even	O
with	O
the	O
door	O
closed	O
.	O
</s>
<s>
The	O
drive	O
was	O
based	O
on	O
the	O
Tandon	O
TM50	O
half-height	O
mechanism	O
connected	O
to	O
a	O
Western	B-Device
Digital	I-Device
2797	I-Device
drive	O
controller	O
.	O
</s>
<s>
The	O
connection	O
to	O
the	O
host	O
computer	O
was	O
controlled	O
by	O
a	O
Zilog	B-General_Concept
Z80	I-General_Concept
.	O
</s>
<s>
A	O
later	O
upgrade	O
from	O
Indus	O
,	O
the	O
RAMCharger	O
,	O
added	O
64kB	O
of	O
random	B-Architecture
access	I-Architecture
memory	I-Architecture
(	O
RAM	B-Architecture
)	O
and	O
a	O
PAL	O
chip	O
that	O
allowed	O
the	O
drive	O
to	O
run	O
CP/M	B-Application
software	O
.	O
</s>
<s>
For	O
Atari	O
users	O
,	O
the	O
drive	O
shipped	O
with	O
DOS	O
XL	O
from	O
Optimized	B-Operating_System
Systems	I-Operating_System
Software	I-Operating_System
,	O
authors	O
of	O
the	O
original	O
Atari	B-Operating_System
DOS	I-Operating_System
.	O
</s>
<s>
It	O
did	O
not	O
,	O
however	O
,	O
support	O
the	O
"	O
enhanced	O
"	O
density	O
mode	O
introduced	O
on	O
the	O
Atari	B-Device
1050	I-Device
,	O
although	O
the	O
drive	O
itself	O
could	O
be	O
used	O
with	O
such	O
disks	O
if	O
the	O
host	O
machine	O
was	O
booted	O
with	O
Atari	B-Operating_System
DOS	I-Operating_System
2.5	O
instead	O
of	O
DOS	O
XL	O
.	O
</s>
<s>
Indus	O
later	O
introduced	O
their	O
own	O
speed	O
improvement	O
,	O
"	O
Synchromesh	O
"	O
,	O
which	O
doubled	O
the	O
transfer	O
speed	O
over	O
the	O
SIO	B-Architecture
bus	I-Architecture
to	O
38400bps	O
.	O
</s>
<s>
It	O
was	O
considered	O
a	O
high-quality	O
unit	O
,	O
regarded	O
by	O
many	O
as	O
the	O
best	O
floppy	B-Device
drive	I-Device
available	O
for	O
8-bit	B-Device
Ataris	I-Device
.	O
</s>
<s>
It	O
was	O
advertised	O
as	O
being	O
over	O
400%	O
as	O
fast	O
as	O
the	O
Commodore	B-Device
1541	I-Device
and	O
has	O
an	O
internal	O
"	O
ROM	O
drive	O
"	O
with	O
DOS	O
utility	O
software	O
,	O
but	O
suffers	O
,	O
as	O
do	O
many	O
third-party	O
Commodore-1541-imitation	O
drives	O
,	O
from	O
being	O
less	O
than	O
100%	O
1541-compatible	O
.	O
</s>
