<s>
The	O
Atari	B-Device
Mega	I-Device
STE	I-Device
is	O
Atari	O
Corporation	O
's	O
final	O
Motorola	O
68000-based	O
personal	B-Device
computer	I-Device
in	O
the	O
Atari	B-Device
ST	I-Device
series	O
and	O
the	O
second	O
to	O
last	O
model	O
overall	O
.	O
</s>
<s>
Released	O
in	O
1991	O
,	O
the	O
Mega	B-Device
STE	I-Device
is	O
a	O
late-model	O
STE	O
mounted	O
in	O
the	O
case	O
of	O
an	O
Atari	B-Device
TT	I-Device
computer	O
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
the	O
higher	O
end	O
Atari	B-Device
Falcon	I-Device
in	O
1992	O
.	O
</s>
<s>
The	O
MEGA	B-Device
STE	I-Device
is	O
based	O
on	O
STE	O
hardware	O
.	O
</s>
<s>
The	O
2	O
MB	O
and	O
4	O
MB	O
models	O
shipped	O
with	O
a	O
high-resolution	O
mono	O
monitor	O
,	O
and	O
an	O
internal	O
SCSI	B-Architecture
hard	O
disk	O
(	O
the	O
1	O
MB	O
model	O
includes	O
neither	O
a	O
monitor	O
,	O
hard	O
disk	O
nor	O
hard	O
disk	O
controller	O
)	O
.	O
</s>
<s>
While	O
offering	O
better	O
ST	O
compatibility	O
than	O
the	O
TT	O
,	O
it	O
also	O
includes	O
a	O
number	O
of	O
TT	O
features	O
,	O
from	O
the	O
ST-grey	O
version	O
of	O
the	O
TT	O
case	O
with	O
a	O
separate	O
keyboard	O
and	O
system	O
unit	O
,	O
optional	O
FPU	B-General_Concept
,	O
a	O
VMEbus	B-Architecture
slot	O
,	O
two	O
extra	O
RS232	O
ports	O
(	O
all	O
9-pin	O
rather	O
than	O
25-pin	O
as	O
previous	O
models	O
had	O
)	O
,	O
a	O
LocalTalk/RS	O
-422	O
port	O
(	O
no	O
AppleTalk	B-Application
software	O
was	O
ever	O
produced	O
)	O
and	O
a	O
1.44	O
MB	O
HD	O
floppy	B-Device
support	O
.	O
</s>
<s>
A	O
unique	O
feature	O
of	O
the	O
MEGA	B-Device
STE	I-Device
in	O
relation	O
to	O
previous	O
Atari	O
systems	O
is	O
the	O
software-switchable	O
CPU	B-Device
speed	O
,	O
which	O
allows	O
the	O
CPU	B-Device
to	O
operate	O
at	O
16	O
MHz	O
for	O
faster	O
processing	O
or	O
8	O
MHz	O
for	O
better	O
compatibility	O
with	O
old	O
software	O
.	O
</s>
<s>
An	O
upgrade	O
to	O
the	O
operating	B-General_Concept
system	I-General_Concept
was	O
also	O
produced	O
after	O
the	O
first	O
units	O
were	O
shipped	O
that	O
upgraded	O
the	O
onboard	O
ROMs	O
to	O
TOS	B-Application
2.05	O
and	O
later	O
to	O
2.6/2.06	O
.	O
</s>
<s>
The	O
VME	B-Architecture
bus	I-Architecture
provides	O
expansion	O
capability	O
using	O
cards	O
that	O
enhance	O
the	O
computer	O
's	O
capabilities	O
such	O
as	O
enhanced	O
graphics	O
processing	O
capability	O
and	O
Ethernet	O
network	O
connectivity	O
.	O
</s>
