<s>
The	O
Macintosh	B-Device
Classic	I-Device
II	I-Device
(	O
also	O
sold	O
as	O
the	O
Performa	B-Device
200	I-Device
)	O
is	O
a	O
personal	B-Device
computer	I-Device
designed	O
,	O
manufactured	O
and	O
sold	O
by	O
Apple	O
Computer	O
,	O
Inc	O
.	O
from	O
October	O
1991	O
to	O
September	O
1993	O
.	O
</s>
<s>
Like	O
the	O
Macintosh	B-Device
SE/30	I-Device
,	O
the	O
Classic	B-Device
II	O
was	O
powered	O
by	O
a	O
16	O
MHz	O
Motorola	B-Device
68030	I-Device
CPU	O
and	O
40	O
or	O
80	O
MB	O
hard	B-Device
disk	I-Device
,	O
but	O
in	O
contrast	O
to	O
the	O
SE/30	B-Device
,	O
it	O
was	O
limited	O
by	O
a	O
16-bit	B-Device
data	O
bus	O
(	O
the	O
SE/30	B-Device
had	O
a	O
32-bit	O
data	O
bus	O
)	O
and	O
a	O
10	O
MB	O
memory	O
ceiling	O
.	O
</s>
<s>
The	O
slower	O
data	O
bus	O
resulted	O
in	O
the	O
Classic	B-Device
II	O
being	O
30%	O
slower	O
than	O
the	O
SE/30	B-Device
.	O
</s>
<s>
While	O
the	O
Classic	B-Device
II	O
shares	O
a	O
case	O
with	O
the	O
earlier	O
Classic	B-Device
,	O
architecturally	O
it	O
has	O
more	O
similarities	O
to	O
the	O
Macintosh	B-Device
LC	I-Device
.	O
</s>
<s>
The	O
use	O
of	O
custom	O
ICs	O
,	O
identical	O
to	O
those	O
used	O
in	O
the	O
LC	O
,	O
enabled	O
the	O
Classic	B-Device
II	O
to	O
have	O
a	O
lower	O
component	O
count	O
than	O
older	O
Macs	O
.	O
</s>
<s>
Unlike	O
the	O
LC	O
and	O
the	O
SE/30	B-Device
before	O
it	O
,	O
the	O
Classic	B-Device
II	O
does	O
not	O
have	O
an	O
internal	O
Processor	B-Device
Direct	I-Device
Slot	I-Device
,	O
making	O
it	O
the	O
second	O
slotless	O
desktop	O
Macintosh	B-Device
after	O
the	O
Classic	B-Device
.	O
</s>
<s>
The	O
Classic	B-Device
II	O
was	O
one	O
of	O
the	O
three	O
machines	O
Apple	O
repackaged	O
as	O
a	O
Macintosh	B-Device
Performa	I-Device
when	O
the	O
brand	O
was	O
introduced	O
in	O
September	O
1992	O
.	O
</s>
<s>
Called	O
the	O
"	O
Performa	B-Device
200	I-Device
"	O
,	O
it	O
was	O
sold	O
with	O
the	O
same	O
specifications	O
as	O
the	O
original	O
Classic	B-Device
II	O
,	O
with	O
the	O
addition	O
of	O
a	O
speaker	O
grille	O
on	O
the	O
left	O
side	O
for	O
enhanced	O
sound	O
.	O
</s>
<s>
A	O
number	O
of	O
changes	O
to	O
the	O
packaged	O
software	O
were	O
included	O
,	O
such	O
as	O
the	O
At	B-Operating_System
Ease	I-Operating_System
desktop	O
alternative	O
which	O
aimed	O
to	O
provide	O
a	O
simpler	O
user	O
interface	O
than	O
the	O
standard	O
Macintosh	B-Application
Finder	I-Application
.	O
</s>
<s>
The	O
Classic	B-Device
II	O
is	O
the	O
last	O
black-and-white	O
compact	O
Macintosh	B-Device
,	O
and	O
the	O
last	O
desktop	O
Macintosh	B-Device
to	O
include	O
an	O
external	O
floppy	B-Device
disk	I-Device
drive	I-Device
port	O
.	O
</s>
<s>
Apple	O
discontinued	O
support	O
for	O
the	O
Classic	B-Device
II	O
on	O
January	O
1	O
,	O
2001	O
.	O
</s>
<s>
Macintosh	B-Device
Classic	I-Device
II	I-Device
:	O
Sold	O
in	O
two	O
configurations	O
:	O
</s>
<s>
Macintosh	B-Device
Performa	I-Device
200	I-Device
:	O
</s>
<s>
Expansion	O
:	O
Connectors	O
on	O
the	O
rear	O
panel	O
include	O
an	O
ADB	B-Device
port	I-Device
for	O
keyboard	O
and	O
mouse	O
,	O
two	O
mini-DIN-8	O
RS-422	O
serial	B-Protocol
ports	I-Protocol
,	O
DB-25	B-Protocol
SCSI	B-Architecture
,	O
DB-19	B-Protocol
External	O
floppy	B-Device
drive	I-Device
,	O
and	O
two	O
3.5mm	O
minijack	B-Device
audio	O
sockets	O
for	O
audio	O
in	O
and	O
headphone	O
out	O
.	O
</s>
<s>
The	O
Classic	B-Device
II	O
has	O
a	O
50-pin	O
internal	O
expansion	O
slot	O
intended	O
for	O
either	O
an	O
FPU	B-General_Concept
co-processor	O
or	O
additional	O
ROM	B-Device
.	O
</s>
<s>
Apple	O
never	O
produced	O
an	O
expansion	O
card	O
of	O
any	O
kind	O
for	O
this	O
slot	O
,	O
although	O
at	O
least	O
one	O
third-party	O
FPU	B-General_Concept
was	O
available	O
:	O
the	O
FastMath	O
Classic	B-Device
II	O
by	O
Applied	O
Engineering	O
.	O
</s>
<s>
and	O
Sonnet	O
offered	O
a	O
synchronous	O
(	O
16	O
MHz	O
)	O
and	O
asynchronous	O
(	O
50	O
MHz	O
)	O
68882	B-General_Concept
FPU	B-General_Concept
.	O
</s>
<s>
none|120px	O
Back	O
of	O
the	O
Classic	B-Device
II	O
none|120px	O
The	O
interrupt	O
(	O
left	O
)	O
and	O
reset	O
(	O
right	O
)	O
buttons	O
protruding	O
from	O
the	O
air	O
vent	O
on	O
the	O
lower	O
left	O
hand	O
side	O
of	O
the	O
Classic	B-Device
II	O
.	O
</s>
<s>
The	O
interrupt	B-Application
button	I-Application
(	O
also	O
called	O
the	O
programmer	B-Application
's	I-Application
key	I-Application
)	O
is	O
used	O
to	O
access	O
a	O
debugger	B-Application
.	O
</s>
<s>
none|120px	O
The	O
ADB	B-Device
keyboard	O
that	O
shipped	O
with	O
the	O
Classic	B-Device
II	O
.	O
</s>
<s>
However	O
,	O
this	O
feature	O
was	O
unsupported	O
by	O
the	O
Classic	B-Device
II	O
.	O
</s>
<s>
The	O
keyboard	O
contained	O
two	O
ADB	B-Device
connectors	O
.	O
</s>
<s>
One	O
connected	O
into	O
the	O
back	O
of	O
the	O
Macintosh	B-Device
,	O
the	O
other	O
was	O
used	O
for	O
connecting	O
the	O
mouse	O
or	O
other	O
peripherals	O
.	O
</s>
<s>
none|120px	O
The	O
ADB	B-Device
mouse	O
that	O
shipped	O
with	O
the	O
Classic	B-Device
II	O
.	O
</s>
