<s>
The	O
Macintosh	B-Device
II	I-Device
is	O
a	O
family	O
of	O
personal	B-Device
computers	I-Device
that	O
was	O
designed	O
,	O
manufactured	O
and	O
sold	O
by	O
Apple	O
Computer	O
,	O
Inc	O
.	O
from	O
1987	O
to	O
1993	O
.	O
</s>
<s>
The	O
Macintosh	B-Device
II	I-Device
was	O
the	O
initial	O
model	O
,	O
representing	O
the	O
high-end	O
of	O
the	O
Macintosh	B-Device
line	O
for	O
the	O
time	O
.	O
</s>
<s>
Over	O
the	O
course	O
of	O
the	O
next	O
six	O
years	O
,	O
seven	O
more	O
models	O
were	O
produced	O
,	O
culminating	O
with	O
the	O
short-lived	O
Macintosh	B-Device
IIvi	I-Device
and	O
Macintosh	B-Device
IIvx	I-Device
models	O
.	O
</s>
<s>
Apple	O
retired	O
the	O
Macintosh	B-Device
II	I-Device
name	O
when	O
it	O
moved	O
to	O
Motorola	B-Device
68040	I-Device
processors	O
;	O
the	O
Centris	B-Device
and	O
Quadra	B-Device
names	O
were	O
used	O
instead	O
.	O
</s>
<s>
Unlike	O
prior	O
Macintosh	B-Device
models	I-Device
,	O
which	O
are	O
"	O
all-in-one	B-Device
"	O
designs	O
,	O
the	O
Macintosh	B-Device
II	I-Device
models	O
are	O
"	O
modular	O
"	O
systems	O
which	O
do	O
not	O
include	O
built-in	O
monitors	O
and	O
are	O
expandable	B-Architecture
.	O
</s>
<s>
Beginning	O
with	O
the	O
Macintosh	B-Device
II	I-Device
and	O
culminating	O
in	O
the	O
Macintosh	B-Device
IIfx	I-Device
,	O
the	O
Macintosh	B-Device
II	I-Device
family	I-Device
was	O
Apple	O
's	O
high-end	O
line	O
from	O
1987	O
until	O
the	O
introduction	O
of	O
the	O
Motorola	O
68040-based	O
Macintosh	B-Device
Quadra	I-Device
computers	O
in	O
1991	O
.	O
</s>
<s>
Expansion	O
was	O
provided	O
by	O
way	O
of	O
NuBus	B-Device
,	O
which	O
become	O
the	O
standard	O
expansion	B-Device
bus	I-Device
for	O
the	O
entire	O
Macintosh	B-Device
line	O
for	O
almost	O
a	O
decade	O
.	O
</s>
<s>
The	O
Macintosh	B-Device
II	I-Device
was	O
the	O
first	O
to	O
officially	O
support	O
color	O
displays	O
,	O
and	O
the	O
first	O
(	O
apart	O
from	O
the	O
Macintosh	B-Device
XL	I-Device
)	O
to	O
support	O
a	O
screen	O
resolution	O
larger	O
than	O
512x384	O
.	O
</s>
<s>
The	O
Macintosh	B-Device
II	I-Device
is	O
also	O
the	O
first	O
to	O
use	O
a	O
Motorola	B-Device
68000	I-Device
series	I-Device
processor	O
other	O
than	O
the	O
Motorola	B-Device
68000	I-Device
.	O
</s>
<s>
Except	O
for	O
the	O
original	O
Macintosh	B-Device
II	I-Device
which	O
launched	O
the	O
line	O
with	O
a	O
Motorola	B-Device
68020	I-Device
clocked	O
at	O
16MHz	O
,	O
they	O
exclusively	O
used	O
the	O
Motorola	B-Device
68030	I-Device
microprocessor	O
,	O
even	O
after	O
the	O
Motorola	B-Device
68040	I-Device
was	O
introduced	O
.	O
</s>
<s>
Apple	O
would	O
eventually	O
adopt	O
the	O
'	O
040	B-Device
with	O
the	O
introduction	O
of	O
the	O
Quadra	B-Device
700	I-Device
and	O
900	B-Device
,	O
positioning	O
these	O
models	O
as	O
high-end	O
workstation-class	O
machines	O
for	O
graphics	O
and	O
scientific	O
computing	O
,	O
while	O
positioning	O
the	O
Macintosh	B-Device
II	I-Device
family	I-Device
as	O
a	O
mainstream	O
desktop	O
computer	O
.	O
</s>
<s>
During	O
the	O
Macintosh	B-Device
II	I-Device
series	I-Device
 '	O
lifespan	O
,	O
they	O
rose	O
to	O
become	O
among	O
the	O
most	O
powerful	O
personal	B-Device
computers	I-Device
available	O
.	O
</s>
<s>
While	O
the	O
Macintosh	B-Device
II	I-Device
series	I-Device
itself	O
was	O
replaced	O
by	O
the	O
Macintosh	B-Device
Centris	I-Device
and	O
Quadra	B-Device
,	O
the	O
Macintosh	B-Device
LC	I-Device
and	O
Performa	B-Device
families	O
continued	O
to	O
use	O
the	O
II	O
's	O
68030	B-Device
technology	O
long	O
after	O
the	O
68040	B-Device
was	O
introduced	O
and	O
the	O
PowerBook	B-Device
continued	O
to	O
use	O
the	O
'	O
030	O
into	O
the	O
Power	B-Device
Macintosh	I-Device
era	O
.	O
</s>
