<s>
The	O
Macintosh	B-Device
Quadra	I-Device
650	I-Device
,	O
originally	O
sold	O
as	O
the	O
Macintosh	B-Device
Centris	I-Device
650	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
from	O
February	O
1993	O
to	O
September	O
1994	O
.	O
</s>
<s>
The	O
Centris	B-Device
650	I-Device
was	O
introduced	O
alongside	O
the	O
smaller	O
Centris	B-Device
610	I-Device
as	O
the	O
replacement	O
for	O
the	O
Macintosh	B-Device
IIci	I-Device
and	O
Quadra	B-Device
700	I-Device
,	O
and	O
it	O
was	O
intended	O
as	O
the	O
start	O
of	O
the	O
new	O
midrange	O
Centris	B-Device
line	O
of	O
computers	O
.	O
</s>
<s>
Later	O
in	O
1993	O
,	O
Apple	O
decided	O
to	O
follow	O
an	O
emerging	O
industry	O
trend	O
of	O
naming	O
product	O
families	O
for	O
their	O
target	O
customers	O
–	O
Quadra	B-Device
for	O
business	O
,	O
LC	O
for	O
education	O
,	O
and	O
Performa	O
for	O
home	O
–	O
and	O
folded	O
the	O
Centris	B-Device
650	I-Device
into	O
the	O
Quadra	B-Device
family	O
.	O
</s>
<s>
The	O
Quadra	B-Device
650	I-Device
was	O
discontinued	O
without	O
a	O
direct	O
replacement	O
in	O
September	O
1994	O
,	O
although	O
the	O
recently	O
introduced	O
Power	B-Device
Macintosh	I-Device
7100	I-Device
,	O
which	O
has	O
the	O
same	O
IIvx	B-Device
form	O
factor	O
as	O
the	O
650	O
,	O
had	O
a	O
similar	O
target	O
audience	O
and	O
was	O
sold	O
in	O
the	O
same	O
price	O
range	O
.	O
</s>
<s>
There	O
are	O
two	O
versions	O
of	O
the	O
Centris	B-Device
650	I-Device
:	O
One	O
with	O
4	O
MB	O
of	O
RAM	O
soldered	O
to	O
the	O
logic	O
board	O
and	O
an	O
FPU-less	O
Motorola	O
68LC040	O
CPU	O
,	O
and	O
one	O
with	O
8	O
MB	O
of	O
logic	O
board	O
RAM	O
,	O
a	O
full	O
Motorola	B-Device
68040	I-Device
,	O
and	O
an	O
onboard	O
AAUI	B-Protocol
port	O
for	O
Ethernet	O
.	O
</s>
<s>
Standard	O
equipment	O
on	O
all	O
Centris	B-Device
650	I-Device
models	O
includes	O
onboard	O
video	O
(	O
with	O
VGA	O
support	O
via	O
an	O
adapter	O
)	O
,	O
3	O
NuBus	B-Device
slots	O
,	O
a	O
Processor	B-Device
Direct	I-Device
Slot	I-Device
,	O
two	O
ADB	B-Device
and	O
two	O
serial	O
ports	O
,	O
an	O
external	O
SCSI	O
connector	O
,	O
and	O
a	O
5.25-inch	O
drive	O
bay	O
.	O
</s>
<s>
There	O
are	O
four	O
SIMM	B-General_Concept
slots	O
that	O
support	O
4	O
,	O
8	O
,	O
16	O
,	O
and	O
32	O
MB	O
SIMMs	B-General_Concept
,	O
allowing	O
for	O
a	O
maximum	O
of	O
132	O
or	O
136	O
MB	O
of	O
RAM	O
depending	O
on	O
the	O
amount	O
of	O
soldered	O
memory	O
.	O
</s>
<s>
System	B-Operating_System
7.1	I-Operating_System
was	O
included	O
as	O
standard	O
and	O
is	O
the	O
minimum	O
required	O
version	O
.	O
</s>
<s>
The	O
availability	O
of	O
16-bit	O
color	O
was	O
significant	O
,	O
as	O
it	O
was	O
the	O
standard	O
bit	O
depth	O
of	O
Apple	O
's	O
then-new	O
QuickTime	B-Application
video	O
standard	O
.	O
</s>
<s>
As	O
a	O
way	O
to	O
promote	O
the	O
use	O
of	O
multimedia	O
,	O
Apple	O
also	O
sold	O
a	O
Centris	B-Device
650	I-Device
"	O
CD	O
ROM	O
bundle	O
"	O
,	O
which	O
had	O
8	O
MB	O
of	O
RAM	O
and	O
1	O
MB	O
of	O
video	O
RAM	O
,	O
and	O
included	O
a	O
microphone	O
,	O
an	O
AppleCD	B-Device
300i	I-Device
CD-ROM	O
drive	O
,	O
and	O
a	O
System	B-Operating_System
7	I-Operating_System
install	O
CD	O
.	O
</s>
<s>
Macintosh	B-Device
Centris	I-Device
650	I-Device
:	O
Sold	O
in	O
five	O
configurations	O
:	O
</s>
<s>
Macintosh	B-Device
Quadra	I-Device
650	I-Device
:	O
33	O
MHz	O
68040	B-Device
.	O
</s>
