<s>
The	O
Power	B-Device
Macintosh	I-Device
,	O
later	O
Power	B-Device
Mac	I-Device
,	O
is	O
a	O
family	O
of	O
personal	B-Device
computers	I-Device
designed	O
,	O
manufactured	O
,	O
and	O
sold	O
by	O
Apple	O
Computer	O
as	O
the	O
core	O
of	O
the	O
Macintosh	B-Device
brand	O
from	O
March	O
1994	O
until	O
August	O
2006	O
.	O
</s>
<s>
Described	O
by	O
MacWorld	O
as	O
"	O
the	O
most	O
important	O
technical	O
evolution	O
of	O
the	O
Macintosh	B-Device
since	O
the	O
Mac	B-Device
II	I-Device
debuted	O
in	O
1987	O
"	O
,	O
it	O
is	O
the	O
first	O
computer	O
with	O
the	O
PowerPC	B-Architecture
CPU	O
architecture	O
,	O
the	O
flagship	O
product	O
of	O
the	O
AIM	O
alliance	O
.	O
</s>
<s>
Existing	O
software	O
for	O
the	O
Motorola	B-Device
68k	I-Device
processors	O
of	O
previous	O
Macintoshes	B-Device
do	O
not	O
run	O
on	O
it	O
natively	O
,	O
so	O
a	O
Mac	B-Device
68k	I-Device
emulator	I-Device
is	O
in	O
System	B-Operating_System
7.1.2	I-Operating_System
.	O
</s>
<s>
It	O
provides	O
good	O
compatibility	O
,	O
at	O
about	O
two	O
thirds	O
of	O
the	O
speed	O
of	O
contemporary	O
Macintosh	B-Device
Quadra	I-Device
machines	O
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
replaced	O
the	O
Quadra	O
,	O
and	O
was	O
initially	O
sold	O
in	O
the	O
same	O
enclosures	O
.	O
</s>
<s>
Over	O
the	O
next	O
twelve	O
years	O
,	O
it	O
evolved	O
through	O
a	O
succession	O
of	O
enclosure	O
designs	O
,	O
a	O
rename	O
to	O
"	O
Power	B-Device
Mac	I-Device
"	O
,	O
five	O
major	O
generations	O
of	O
PowerPC	B-Architecture
chips	I-Architecture
,	O
and	O
a	O
great	O
deal	O
of	O
press	O
coverage	O
,	O
design	O
accolades	O
,	O
and	O
controversy	O
about	O
performance	O
claims	O
.	O
</s>
<s>
It	O
was	O
discontinued	O
as	O
part	O
of	O
the	O
Mac	B-Device
transition	I-Device
to	I-Device
Intel	I-Device
processors	I-Device
announced	O
in	O
2005	O
,	O
making	O
way	O
for	O
its	O
replacement	O
,	O
the	O
Mac	B-Device
Pro	I-Device
.	O
</s>
<s>
The	O
first	O
Power	B-Device
Macintosh	I-Device
models	O
were	O
released	O
in	O
March	O
1994	O
,	O
but	O
the	O
development	O
of	O
Power	B-Device
Macintosh	I-Device
technology	O
dates	O
back	O
to	O
mid-1988	O
.	O
</s>
<s>
This	O
was	O
originally	O
envisioned	O
to	O
be	O
a	O
new	O
computer	O
line	O
altogether	O
,	O
not	O
a	O
Macintosh	B-Device
,	O
and	O
the	O
Jaguar	O
team	O
was	O
initially	O
kept	O
independent	O
of	O
the	O
Macintosh	B-Device
team	O
.	O
</s>
<s>
Gassée	O
's	O
preference	O
,	O
as	O
it	O
was	O
with	O
the	O
upcoming	O
Macintosh	B-Device
IIfx	I-Device
,	O
was	O
to	O
create	O
a	O
product	O
that	O
would	O
compete	O
in	O
the	O
high-end	O
workstation	O
market	O
,	O
previously	O
not	O
an	O
area	O
of	O
strength	O
for	O
Apple	O
.	O
</s>
<s>
The	O
decision	O
to	O
use	O
RISC	B-Architecture
architecture	I-Architecture
was	O
representative	O
of	O
a	O
shift	O
in	O
the	O
computer	O
industry	O
in	O
1987	O
and	O
1988	O
,	O
where	O
RISC-based	B-Architecture
systems	I-Architecture
from	O
Sun	O
Microsystems	O
,	O
Hewlett-Packard	O
,	O
and	O
IBM	O
were	O
significantly	O
outpacing	O
the	O
performance	O
offered	O
by	O
systems	O
based	O
on	O
Motorola	O
's	O
68020	B-Device
and	O
68030	B-Device
processors	O
and	O
Intel	O
's	O
80386	B-General_Concept
and	O
80486	B-General_Concept
CPUs	B-General_Concept
.	O
</s>
<s>
Initially	O
,	O
Apple	O
invested	O
considerable	O
time	O
and	O
effort	O
in	O
an	O
attempt	O
to	O
create	O
their	O
own	O
RISC	B-Architecture
CPU	O
in	O
a	O
project	O
code-named	O
"	O
Aquarius	O
"	O
,	O
even	O
to	O
a	O
point	O
where	O
a	O
Cray-1	B-Device
supercomputer	O
was	O
purchased	O
to	O
assist	O
with	O
designing	O
the	O
chip	O
.	O
</s>
<s>
By	O
early	O
1990	O
,	O
Apple	O
was	O
in	O
contact	O
with	O
a	O
number	O
of	O
RISC	B-Architecture
vendors	O
to	O
find	O
a	O
suitable	O
hardware	O
partner	O
.	O
</s>
<s>
The	O
team	O
that	O
had	O
created	O
the	O
IIfx	O
independently	O
started	O
experimenting	O
with	O
creating	O
a	O
new	O
Macintosh	B-Device
product	O
that	O
would	O
combine	O
a	O
Motorola	B-Device
68030	I-Device
processor	O
with	O
an	O
AMD	B-General_Concept
Am29000	I-General_Concept
(	O
29k	B-General_Concept
)	O
RISC	B-Architecture
chip	O
.	O
</s>
<s>
Apple	O
had	O
already	O
released	O
a	O
product	O
built	O
on	O
the	O
29k	B-General_Concept
,	O
the	O
Macintosh	B-Device
Display	O
Card	O
8•24	O
GC	O
,	O
a	O
so-called	O
"	O
Macintosh	B-Device
Toolbox	I-Device
accelerator	O
"	O
NuBus	B-Device
card	O
that	O
provides	O
significantly	O
faster	O
drawing	O
routines	O
than	O
those	O
included	O
on	O
the	O
Macintosh	B-Device
ROM	O
.	O
</s>
<s>
The	O
team	O
's	O
experiments	O
resulted	O
in	O
a	O
68020	B-Device
emulator	O
implemented	O
in	O
RISC	B-Architecture
,	O
but	O
the	O
29k	B-General_Concept
project	O
was	O
dropped	O
in	O
mid-1990	O
due	O
to	O
financial	O
infeasibility	O
.	O
</s>
<s>
Apple	O
evaluated	O
CPU	O
architectures	O
including	O
MIPS	B-Device
,	O
SPARC	B-Architecture
,	O
i860	B-General_Concept
,	O
and	O
ARMwhich	O
would	O
be	O
much	O
later	O
used	O
across	O
many	O
Apple	O
product	O
families	O
.	O
</s>
<s>
Negotiations	O
with	O
Sun	O
included	O
the	O
condition	O
that	O
Sun	O
would	O
use	O
the	O
Macintosh	B-Device
interface	O
for	O
its	O
SPARC	B-Architecture
workstation	O
computers	O
in	O
exchange	O
for	O
Apple	O
using	O
Sun	O
's	O
SPARC	B-Architecture
processors	O
in	O
Macintosh	B-Device
workstations	O
;	O
the	O
deal	O
was	O
canceled	O
due	O
to	O
Apple	O
's	O
concern	O
that	O
Sun	O
could	O
not	O
produce	O
enough	O
processors	O
.	O
</s>
<s>
Negotiations	O
with	O
MIPS	B-Device
to	O
use	O
the	O
R4000	B-General_Concept
processor	O
also	O
included	O
the	O
condition	O
that	O
the	O
Macintosh	B-Device
interface	O
would	O
be	O
available	O
as	O
an	O
alternative	O
to	O
Advanced	B-Device
Computing	I-Device
Environment	I-Device
.	O
</s>
<s>
The	O
Intel	B-General_Concept
i860	I-General_Concept
was	O
eliminated	O
from	O
consideration	O
due	O
to	O
its	O
high	O
complexity	O
.	O
</s>
<s>
Apple	O
did	O
not	O
consider	O
IBM	O
's	O
POWER1	B-General_Concept
processor	O
as	O
an	O
option	O
,	O
believing	O
that	O
IBM	O
would	O
not	O
be	O
willing	O
to	O
license	O
it	O
to	O
third	O
parties	O
.	O
</s>
<s>
In	O
mid-1990	O
,	O
Apple	O
chose	O
the	O
Motorola	B-Device
88110	I-Device
,	O
an	O
as	O
yet	O
unfinished	O
chip	O
that	O
combined	O
the	O
88100	O
CPU	O
and	O
88200	O
FPU	O
into	O
a	O
single	O
package	O
.	O
</s>
<s>
This	O
project	O
became	O
known	O
as	O
"	O
RLC	O
"	O
,	O
short	O
form	O
"	O
RISC	B-Architecture
LC	O
"	O
,	O
a	O
play	O
on	O
the	O
name	O
of	O
Apple	O
's	O
upcoming	O
Macintosh	B-Device
LC	I-Device
computer	O
.	O
</s>
<s>
By	O
January	O
1991	O
,	O
the	O
engineering	O
team	O
had	O
produced	O
a	O
prototype	O
of	O
a	O
Macintosh	B-Device
LC	I-Device
with	O
its	O
68020	B-Device
CPU	O
being	O
swapped	O
out	O
for	O
an	O
88100	O
and	O
a	O
68020	B-Device
emulator	O
.	O
</s>
<s>
This	O
prototype	O
was	O
able	O
to	O
use	O
an	O
unmodified	O
Macintosh	B-Device
Toolbox	I-Device
ROM	O
and	O
could	O
boot	O
into	O
System	B-Operating_System
7	I-Operating_System
.	O
</s>
<s>
A	O
few	O
months	O
later	O
,	O
a	O
second	O
prototype	O
was	O
created	O
,	O
utilizing	O
a	O
Macintosh	B-Device
IIsi	I-Device
case	O
with	O
the	O
now-completed	O
Motorola	O
88100	O
chip	O
.	O
</s>
<s>
Instead	O
,	O
mass-market	O
RISC	B-Architecture
systems	O
would	O
follow	O
sometime	O
later	O
.	O
</s>
<s>
After	O
Gassée	O
left	O
Apple	O
in	O
early	O
1990	O
,	O
the	O
goal	O
of	O
the	O
Jaguar	O
project	O
was	O
refocused	O
to	O
be	O
a	O
mainstream	O
Macintosh	B-Application
system	I-Application
instead	O
of	O
a	O
new	O
platform	O
.	O
</s>
<s>
The	O
Jaguar	O
project	O
was	O
folded	O
into	O
the	O
Macintosh	B-Device
team	O
in	O
early	O
1991	O
.	O
</s>
<s>
While	O
the	O
Jaguar	O
project	O
itself	O
never	O
came	O
to	O
fruition	O
,	O
and	O
Taligent	O
never	O
resulted	O
in	O
a	O
functional	O
operating	O
system	O
,	O
many	O
of	O
the	O
elements	O
originally	O
developed	O
by	O
the	O
Jaguar	O
hardware	O
and	O
software	O
teams	O
were	O
brought	O
to	O
market	O
in	O
mid-1993	O
with	O
the	O
Centris	B-Device
660AV	I-Device
and	O
Quadra	B-Device
840AV	I-Device
,	O
including	O
the	O
Apple	B-Device
Adjustable	I-Device
Keyboard	I-Device
,	O
Apple	B-Device
AudioVision	I-Device
14	I-Device
Display	I-Device
,	O
GeoPort	B-Device
,	O
and	O
PlainTalk	B-Operating_System
.	O
</s>
<s>
The	O
new	O
case	O
designs	O
introduced	O
with	O
the	O
Centris	B-Device
610	I-Device
and	O
Quadra	B-Device
800	I-Device
had	O
also	O
originated	O
in	O
the	O
Jaguar	O
team	O
.	O
</s>
<s>
Engineers	O
from	O
Apple	O
and	O
IBM	O
's	O
Advanced	O
Workstations	O
and	O
Systems	O
Division	O
met	O
in	O
Austin	O
,	O
Texas	O
to	O
discuss	O
creating	O
a	O
single-chip	O
version	O
of	O
IBM	O
's	O
POWER1	B-General_Concept
RISC	B-Architecture
architecture	I-Architecture
.	O
</s>
<s>
IBM	O
had	O
already	O
been	O
working	O
on	O
such	O
a	O
chip	O
,	O
called	O
the	O
RISC	B-Device
Single	I-Device
Chip	I-Device
(	O
RSC	O
)	O
,	O
in	O
an	O
effort	O
to	O
reduce	O
production	O
cost	O
of	O
their	O
entry-level	O
RS/6000	B-Device
workstation	O
systems	O
.	O
</s>
<s>
In	O
these	O
meetings	O
,	O
a	O
number	O
of	O
changes	O
were	O
proposed	O
to	O
RSC	O
that	O
would	O
facilitate	O
lower	O
costs	O
,	O
lower	O
power	O
usage	O
,	O
and	O
higher	O
yield	O
production	O
suitable	O
for	O
both	O
the	O
Macintosh	B-Device
and	O
future	O
RS/6000	B-Device
products	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
new	O
RISC	B-Architecture
architecture	I-Architecture
,	O
which	O
was	O
given	O
the	O
name	O
PowerPC	B-Architecture
,	O
this	O
"	O
AIM	O
alliance	O
"	O
had	O
several	O
goals	O
,	O
including	O
creating	O
an	O
operating	O
system	O
based	O
on	O
Pink	O
,	O
an	O
object-oriented	O
scripting	O
language	O
called	O
ScriptX	O
,	O
and	O
a	O
cross-platform	O
media	O
player	O
called	O
the	O
Kaleida	O
Media	O
Player	O
.	O
</s>
<s>
Of	O
the	O
alliance	O
,	O
John	O
Sculley	O
said	O
,	O
"	O
The	O
Macintosh	B-Device
strategy	O
paid	O
off	O
very	O
well	O
for	O
us	O
in	O
the	O
1980s	O
,	O
but	O
we	O
did	O
n't	O
think	O
we	O
could	O
establish	O
the	O
next	O
generation	O
of	O
computing	O
by	O
using	O
that	O
model	O
in	O
the	O
1990s	O
.	O
</s>
<s>
Working	O
with	O
IBM	O
,	O
and	O
making	O
it	O
available	O
to	O
everyone	O
,	O
we	O
can	O
have	O
a	O
much	O
wider	O
impact	O
with	O
these	O
technologies	O
than	O
we	O
did	O
with	O
the	O
Macintosh.	O
"	O
</s>
<s>
Development	O
of	O
the	O
PowerPC	B-Architecture
601	O
chip	O
started	O
in	O
October	O
1991	O
and	O
was	O
completed	O
in	O
21	O
months	O
,	O
with	O
volume	O
production	O
starting	O
in	O
July	O
1993	O
.	O
</s>
<s>
The	O
first	O
computers	O
to	O
ship	O
with	O
a	O
PowerPC	B-Architecture
chip	I-Architecture
were	O
a	O
line	O
of	O
IBM	B-Device
RS/6000	I-Device
workstations	O
in	O
September	O
1993	O
.	O
</s>
<s>
Many	O
Macintosh	B-Device
application	O
developers	O
used	O
these	O
machines	O
for	O
development	O
of	O
the	O
initial	O
PowerPC	B-Architecture
ports	O
of	O
their	O
products	O
,	O
as	O
Macintosh-based	O
PowerPC	B-Architecture
development	O
tools	O
were	O
not	O
ready	O
.	O
</s>
<s>
The	O
PowerPC	B-Architecture
603	B-General_Concept
(	O
which	O
focused	O
on	O
lowering	O
power	O
usage	O
)	O
and	O
604	O
(	O
which	O
focused	O
on	O
high	O
performance	O
)	O
projects	O
were	O
also	O
underway	O
at	O
the	O
same	O
time	O
.	O
</s>
<s>
In	O
July	O
1992	O
,	O
the	O
decision	O
was	O
made	O
to	O
scale	O
back	O
the	O
ambition	O
of	O
the	O
initial	O
system	B-Application
software	I-Application
release	O
;	O
instead	O
of	O
attempting	O
to	O
create	O
a	O
completely	O
new	O
kernel	O
,	O
Apple	O
focused	O
on	O
producing	O
a	O
version	O
of	O
System	B-Operating_System
7	I-Operating_System
where	O
portions	O
of	O
the	O
existing	O
Macintosh	B-Device
Toolbox	I-Device
ROM	O
were	O
rewritten	O
to	O
use	O
native	O
PowerPC	B-Architecture
code	O
instead	O
of	O
emulating	O
a	O
680x0	O
.	O
</s>
<s>
This	O
provided	O
a	O
significant	O
performance	O
boost	O
for	O
certain	O
highly	O
utilized	O
parts	O
of	O
the	O
operating	O
system	O
,	O
particularly	O
QuickDraw	B-Operating_System
.	O
</s>
<s>
The	O
first	O
public	O
demonstration	O
of	O
the	O
new	O
Power	B-Device
Macintosh	I-Device
—	O
specifically	O
,	O
a	O
prototype	O
of	O
what	O
would	O
become	O
the	O
Power	B-Device
Macintosh	I-Device
6100	I-Device
–	O
was	O
at	O
an	O
Apple	O
Pacific	O
sales	O
meeting	O
in	O
Hawaii	O
in	O
October	O
1992	O
.	O
</s>
<s>
The	O
demo	O
was	O
a	O
success	O
,	O
and	O
in	O
the	O
following	O
months	O
,	O
the	O
product	O
plan	O
expanded	O
to	O
include	O
three	O
models	O
:	O
the	O
entry-level	O
6100	O
,	O
a	O
mid-range	O
7100	B-Device
housed	O
in	O
the	O
Macintosh	B-Device
IIvx	I-Device
's	O
desktop	B-General_Concept
case	I-General_Concept
,	O
and	O
a	O
high-end	O
8100	B-Device
based	O
on	O
the	O
Quadra	B-Device
800	I-Device
's	O
mini-tower	O
case	O
.	O
</s>
<s>
A	O
fourth	O
project	O
,	O
the	O
Macintosh	B-Device
Processor	I-Device
Upgrade	I-Device
Card	I-Device
,	O
was	O
started	O
in	O
July	O
1993	O
with	O
the	O
goal	O
of	O
providing	O
a	O
straightforward	O
upgrade	O
path	O
to	O
owners	O
of	O
Centris	O
-	O
and	O
Quadra-based	O
Macintosh	B-Device
computers	O
.	O
</s>
<s>
Computers	O
upgraded	O
in	O
this	O
fashion	O
received	O
new	O
names	O
such	O
as	O
"	O
Power	B-Device
Macintosh	I-Device
Q650	O
"	O
and	O
"	O
Power	B-Device
Macintosh	I-Device
900	O
"	O
.	O
</s>
<s>
The	O
original	O
plan	O
was	O
to	O
release	O
the	O
first	O
Power	B-Device
Macintosh	I-Device
machine	O
on	O
January	O
24	O
,	O
1994	O
,	O
exactly	O
ten	O
years	O
after	O
the	O
release	O
of	O
the	O
first	B-Device
Macintosh	I-Device
.	O
</s>
<s>
Ian	O
Diery	O
,	O
who	O
was	O
EVP	O
and	O
general	O
manager	O
of	O
the	O
Personal	B-Device
Computer	I-Device
Division	O
at	O
the	O
time	O
,	O
moved	O
the	O
release	O
date	O
back	O
to	O
March	O
14	O
in	O
order	O
to	O
give	O
manufacturing	O
enough	O
time	O
to	O
build	O
enough	O
machines	O
to	O
fill	O
the	O
sales	O
channels	O
,	O
and	O
to	O
ensure	O
that	O
the	O
Macintosh	B-Device
Processor	I-Device
Upgrade	I-Device
Card	I-Device
would	O
be	O
available	O
at	O
the	O
same	O
time	O
.	O
</s>
<s>
This	O
was	O
a	O
departure	O
from	O
prior	O
practice	O
at	O
Apple	O
;	O
they	O
had	O
typically	O
released	O
upgrade	O
packages	O
months	O
after	O
the	O
introduction	O
of	O
new	O
Macintoshes	B-Device
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
was	O
formally	O
introduced	O
at	O
the	O
Lincoln	O
Center	O
for	O
the	O
Performing	O
Arts	O
in	O
Manhattan	O
on	O
March	O
14	O
.	O
</s>
<s>
Pre-orders	O
for	O
the	O
new	O
Power	B-Device
Macintosh	I-Device
models	O
were	O
brisk	O
,	O
with	O
an	O
announced	O
150,000	O
machines	O
already	O
having	O
been	O
sold	O
by	O
that	O
date	O
.	O
</s>
<s>
MacWorld	O
's	O
review	O
of	O
the	O
6100/60	O
noted	O
that	O
"	O
Not	O
only	O
has	O
Apple	O
finally	O
regained	O
the	O
performance	O
lead	O
it	O
lost	O
about	O
eight	O
years	O
ago	O
when	O
PCs	B-Device
appeared	O
using	O
Intel	O
's	O
80386	B-General_Concept
CPU	O
,	O
but	O
it	O
has	O
pushed	O
far	O
ahead.	O
"	O
</s>
<s>
Performance	O
of	O
680x0	O
software	O
is	O
slower	O
due	O
to	O
the	O
emulation	O
layer	O
,	O
but	O
MacWorld	O
's	O
benchmarks	O
showed	O
noticeably	O
faster	O
CPU	O
,	O
disk	O
,	O
video	O
and	O
floating	O
point	O
performance	O
than	O
the	O
Quadra	B-Device
610	I-Device
it	O
replaced	O
.	O
</s>
<s>
By	O
January	O
1995	O
,	O
Apple	O
had	O
sold	O
1	O
million	O
Power	B-Device
Macintosh	I-Device
systems	O
.	O
</s>
<s>
Speed-bumped	O
versions	O
of	O
the	O
Power	B-Device
Macintosh	I-Device
line	O
were	O
introduced	O
at	O
the	O
beginning	O
of	O
1995	O
,	O
followed	O
in	O
April	O
by	O
the	O
first	O
PowerPC	B-Architecture
603	B-General_Concept
models	O
:	O
an	O
all-in-one	O
model	O
called	O
the	O
Power	B-Device
Macintosh	I-Device
5200	I-Device
LC	I-Device
and	O
a	O
replacement	O
for	O
the	O
Quadra	B-Device
630	I-Device
called	O
the	O
Power	B-Device
Macintosh	I-Device
6200	I-Device
.	O
</s>
<s>
Performa	B-Device
variants	O
of	O
these	O
machines	O
were	O
sold	O
as	O
well	O
,	O
continuing	O
the	O
practice	O
of	O
re-branding	O
other	O
Macintosh	B-Device
models	I-Device
for	O
sale	O
in	O
department	O
stores	O
and	O
big-box	O
electronics	O
retailers	O
.	O
</s>
<s>
By	O
mid-1995	O
,	O
the	O
burgeoning	O
Power	B-Device
Macintosh	I-Device
line	O
had	O
all	O
but	O
completely	O
supplanted	O
every	O
prior	O
Macintosh	B-Device
line	O
,	O
with	O
only	O
the	O
high-end	O
Quadra	B-Device
950	I-Device
and	O
two	O
low-cost	O
education	O
models	O
(	O
the	O
all-in-one	O
Macintosh	B-Device
LC	I-Device
580	I-Device
and	O
desktop	O
LC	B-Device
630	I-Device
)	O
remaining	O
in	O
production	O
.	O
</s>
<s>
The	O
competitive	O
marketplace	O
for	O
"	O
accelerator	O
cards	O
"	O
that	O
had	O
existed	O
for	O
earlier	O
Macintosh	B-Application
systems	I-Application
largely	O
disappeared	O
due	O
to	O
the	O
comparatively	O
low	O
price	O
of	O
Apple	O
's	O
Macintosh	B-Device
Processor	I-Device
Upgrade	I-Device
Card	I-Device
(	O
US$600	O
)	O
.	O
</s>
<s>
Macintosh	B-Device
clones	I-Device
from	O
companies	O
like	O
DayStar	O
Digital	O
and	O
Power	O
Computing	O
were	O
also	O
coming	O
to	O
the	O
market	O
at	O
this	O
time	O
,	O
undercutting	O
Apple	O
's	O
prices	O
.	O
</s>
<s>
When	O
the	O
Power	B-Device
Macintosh	I-Device
was	O
introduced	O
,	O
it	O
included	O
the	O
same	O
internal	O
and	O
external	O
expansion	O
connections	O
as	O
other	O
Macintosh	B-Device
models	I-Device
,	O
all	O
of	O
which	O
(	O
save	O
for	O
audio	O
input	O
and	O
output	O
)	O
were	O
either	O
wholly	O
proprietary	O
to	O
,	O
or	O
largely	O
exclusive	O
to	O
Apple	O
computers	O
.	O
</s>
<s>
The	O
first	O
generation	O
of	O
Power	B-Device
Macintoshes	I-Device
had	O
shipped	O
with	O
NuBus	B-Device
,	O
but	O
by	O
the	O
end	O
of	O
1993	O
it	O
was	O
becoming	O
clear	O
that	O
Intel	O
's	O
PCI	B-Protocol
bus	I-Protocol
was	O
going	O
to	O
be	O
the	O
widely	O
adopted	O
future	O
of	O
internal	O
expansion	O
.	O
</s>
<s>
Apple	O
's	O
position	O
as	O
a	O
relatively	O
small	O
player	O
in	O
the	O
larger	O
personal	B-Device
computer	I-Device
market	O
meant	O
that	O
few	O
device	O
manufacturers	O
invested	O
in	O
creating	O
both	O
NuBus	B-Device
-	O
and	O
PCI-compatible	O
versions	O
of	O
their	O
cards	O
.	O
</s>
<s>
The	O
first	O
PCI-based	O
system	O
was	O
the	O
range-topping	O
Power	B-Device
Macintosh	I-Device
9500	I-Device
,	O
introduced	O
in	O
May	O
1995	O
.	O
</s>
<s>
This	O
was	O
followed	O
shortly	O
afterwards	O
by	O
the	O
introduction	O
of	O
the	O
"	O
Power	O
Surge	O
"	O
line	O
of	O
second-generation	O
Power	B-Device
Macintosh	I-Device
systems	O
–	O
the	O
Power	B-Device
Macintosh	I-Device
7200	I-Device
,	O
7500	B-Device
and	O
8500	B-Device
.	O
</s>
<s>
The	O
8500	B-Device
and	O
9500	O
were	O
built	O
around	O
the	O
new	O
PowerPC	B-Architecture
604	O
,	O
offering	O
speeds	O
starting	O
at	O
120MHz	O
.	O
</s>
<s>
InfoWorld	O
's	O
review	O
of	O
the	O
8500	B-Device
showed	O
a	O
speed	O
improvement	O
in	O
their	O
"	O
business	O
applications	O
suite	O
"	O
benchmark	O
from	O
10	O
minutes	O
with	O
the	O
8100/100	O
,	O
to	O
7:37	O
for	O
the	O
8500/120	O
.	O
</s>
<s>
They	O
also	O
noted	O
that	O
the	O
8500	B-Device
runs	O
an	O
average	O
of	O
24	O
to	O
44	O
percent	O
faster	O
than	O
a	O
similarly-clocked	O
Intel	B-General_Concept
Pentium	I-General_Concept
chip	O
,	O
increasing	O
to	O
double	O
on	O
graphics	O
and	O
publishing	O
tasks	O
.	O
</s>
<s>
The	O
transition	O
to	O
PCI	B-Protocol
continued	O
into	O
1996	O
,	O
with	O
the	O
introduction	O
of	O
the	O
all-in-one	O
5400	O
,	O
desktop	O
6300/160	O
(	O
usually	O
sold	O
as	O
a	O
Performa	B-Device
6360	O
)	O
,	O
and	O
mini-tower	O
6400	O
models	O
.	O
</s>
<s>
The	O
success	O
of	O
the	O
Macintosh	B-Device
clone	I-Device
market	O
also	O
prompted	O
Apple	O
to	O
produce	O
its	O
own	O
inexpensive	O
machine	O
using	O
parts	O
and	O
production	O
techniques	O
that	O
were	O
common	O
in	O
both	O
the	O
clone	O
market	O
and	O
the	O
Wintel	B-Device
desktop	O
market	O
at	O
the	O
time	O
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
4400	I-Device
(	O
sold	O
as	O
a	O
7220	O
in	O
Asia	O
and	O
Australia	O
)	O
employed	O
bent	O
sheet	O
metal	O
instead	O
of	O
plastic	O
for	O
its	O
case	O
internals	O
,	O
and	O
included	O
a	O
standard	O
ATX	O
power	O
supply	O
.	O
</s>
<s>
Alongside	O
the	O
transition	O
to	O
PCI	B-Protocol
,	O
Apple	O
began	O
a	O
gradual	O
transition	O
away	O
from	O
SCSI	B-Architecture
hard	O
disks	O
to	O
IDE	B-Protocol
as	O
a	O
cost-saving	O
measure	O
,	O
both	O
for	O
themselves	O
and	O
for	O
users	O
who	O
wanted	O
to	O
upgrade	O
their	O
hard	O
drives	O
.	O
</s>
<s>
The	O
low-end	O
5200	O
and	O
6200	O
were	O
the	O
first	O
to	O
adopt	O
IDE	B-Protocol
internal	O
drives	O
,	O
though	O
Apple	O
's	O
proprietary	O
25-pin	O
external	O
SCSI	B-Protocol
connector	I-Protocol
remained	O
.	O
</s>
<s>
The	O
beige	O
Power	B-Device
Macintosh	I-Device
G3	I-Device
models	O
being	O
the	O
last	O
to	O
include	O
SCSI	B-Architecture
drives	O
as	O
standard	O
,	O
and	O
it	O
was	O
the	O
last	O
Macintosh	B-Device
to	O
include	O
the	O
external	O
SCSI	B-Protocol
connector	I-Protocol
.	O
</s>
<s>
When	O
the	O
Power	B-Device
Macintosh	I-Device
G3	I-Device
(	O
Blue	O
and	O
White	O
)	O
was	O
introduced	O
in	O
early	O
1999	O
,	O
the	O
port	O
was	O
replaced	O
by	O
two	O
FireWire	B-Protocol
400	I-Protocol
ports	O
.	O
</s>
<s>
The	O
Blue	B-Device
and	I-Device
White	I-Device
G3	I-Device
was	O
also	O
the	O
last	O
Macintosh	B-Device
to	O
include	O
Apple	B-Device
Desktop	I-Device
Bus	I-Device
ports	O
,	O
a	O
proprietary	O
technology	O
created	O
by	O
Steve	O
Wozniak	O
to	O
connect	O
keyboards	O
,	O
mice	O
and	O
software	B-Device
protection	I-Device
dongles	I-Device
such	O
as	O
those	O
from	O
Avid	O
Technology	O
.	O
</s>
<s>
Two	O
USB	B-Protocol
ports	O
were	O
also	O
included	O
,	O
making	O
this	O
the	O
only	O
Power	B-Device
Macintosh	I-Device
to	O
include	O
both	O
ADB	O
and	O
USB	B-Protocol
.	O
</s>
<s>
Another	O
port	O
that	O
was	O
retired	O
during	O
this	O
time	O
is	O
the	O
Apple	B-Protocol
Attachment	I-Protocol
Unit	I-Protocol
Interface	I-Protocol
.	O
</s>
<s>
This	O
was	O
a	O
proprietary	O
version	O
of	O
the	O
industry-standard	O
Attachment	B-Protocol
Unit	I-Protocol
Interface	I-Protocol
connector	O
for	O
10BASE5	O
Ethernet	O
that	O
Apple	O
had	O
created	O
to	O
avoid	O
confusion	O
with	O
the	O
15-pin	O
connector	O
that	O
Apple	O
used	O
for	O
connecting	O
external	O
displays	O
.	O
</s>
<s>
The	O
AAUI	B-Protocol
port	O
required	O
a	O
costly	O
external	O
transceiver	O
to	O
connect	O
to	O
a	O
network	O
.	O
</s>
<s>
By	O
the	O
early	O
1990s	O
,	O
the	O
networking	B-Architecture
industry	O
was	O
coalescing	O
around	O
the	O
10BASE-T	B-Protocol
connector	O
,	O
leading	O
Apple	O
to	O
include	O
this	O
port	O
alongside	O
AAUI	B-Protocol
in	O
mid-1995	O
,	O
starting	O
with	O
the	O
Power	B-Device
Macintosh	I-Device
9500	I-Device
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
G3	I-Device
excluded	O
the	O
AAUI	B-Protocol
port	O
.	O
</s>
<s>
The	O
Power	B-Device
Mac	I-Device
G4	I-Device
(	O
AGP	O
Graphics	O
)	O
was	O
released	O
in	O
the	O
second	O
half	O
of	O
1999	O
;	O
it	O
was	O
the	O
first	O
Power	B-Device
Macintosh	I-Device
to	O
include	O
only	O
industry-standard	O
internal	O
and	O
external	O
expansion	O
.	O
</s>
<s>
For	O
some	O
years	O
afterwards	O
,	O
a	O
number	O
of	O
third	O
parties	O
created	O
dongles	B-Device
that	O
provided	O
backwards	O
compatibility	O
to	O
users	O
of	O
newer	O
Power	B-Device
Mac	I-Device
systems	O
with	O
old	O
hardware	O
.	O
</s>
<s>
In	O
some	O
cases	O
,	O
these	O
companies	O
produced	O
adapters	O
that	O
matched	O
the	O
aesthetic	O
design	O
of	O
the	O
Power	B-Device
Mac	I-Device
.	O
</s>
<s>
Building	O
on	O
the	O
critical	O
and	O
commercial	O
success	O
of	O
the	O
iMac	B-Device
,	O
Ive	O
and	O
his	O
team	O
created	O
an	O
entirely	O
new	O
case	O
design	O
for	O
the	O
Power	B-Device
Macintosh	I-Device
G3	I-Device
,	O
combining	O
many	O
of	O
the	O
aesthetic	O
principles	O
of	O
the	O
iMac	B-Device
(	O
curves	O
,	O
translucent	O
plastics	O
,	O
use	O
of	O
color	O
)	O
with	O
the	O
ease-of-access	O
characteristics	O
of	O
the	O
company	O
's	O
popular	O
"	O
Outrigger	O
"	O
Macintosh	B-Device
models	I-Device
from	O
previous	O
years	O
.	O
</s>
<s>
The	O
result	O
was	O
the	O
Power	B-Device
Macintosh	I-Device
G3	I-Device
(	O
Blue	O
and	O
White	O
)	O
,	O
a	O
machine	O
that	O
received	O
considerable	O
plaudits	O
from	O
reviewers	O
,	O
including	O
PC	O
Magazine	O
's	O
Technical	O
Excellence	O
Award	O
for	O
1999	O
.	O
</s>
<s>
"	O
The	O
Power	B-Device
Mac	I-Device
provides	O
the	O
fastest	O
access	O
to	O
the	O
insides	O
of	O
a	O
computer	O
we	O
've	O
ever	O
seen	O
,	O
"	O
they	O
wrote	O
.	O
</s>
<s>
This	O
case	O
design	O
,	O
code-named	O
"	O
El	O
Capitan	O
"	O
,	O
was	O
retained	O
through	O
the	O
entire	O
lifetime	O
of	O
the	O
Power	B-Device
Mac	I-Device
G4	I-Device
.	O
</s>
<s>
The	O
introduction	O
of	O
the	O
Blue	B-Device
and	I-Device
White	I-Device
G3	I-Device
mini-tower	O
also	O
marked	O
the	O
end	O
of	O
the	O
desktop	O
and	O
all-in-one	O
Power	B-Device
Macintosh	I-Device
case	O
designs	O
,	O
the	O
latter	O
being	O
replaced	O
by	O
the	O
iMac	B-Device
.	O
</s>
<s>
A	O
second	O
model	O
called	O
the	O
Power	B-Device
Mac	I-Device
G4	I-Device
Cube	I-Device
was	O
introduced	O
in	O
2000	O
,	O
which	O
fitted	O
the	O
specifications	O
of	O
a	O
mid-range	O
Power	B-Device
Mac	I-Device
G4	I-Device
into	O
a	O
cube	O
less	O
than	O
9	O
"	O
in	O
each	O
axis	O
.	O
</s>
<s>
The	O
PowerPC	B-Architecture
chips	I-Architecture
in	O
the	O
G3	O
and	O
G4	O
became	O
a	O
central	O
part	O
of	O
Apple	O
's	O
branding	O
and	O
marketing	O
for	O
the	O
Power	B-Device
Macintosh	I-Device
.	O
</s>
<s>
For	O
example	O
,	O
the	O
Blue	B-Device
and	I-Device
White	I-Device
G3	I-Device
features	O
the	O
letters	O
"	O
G3	O
"	O
on	O
the	O
side	O
that	O
are	O
fully	O
one-third	O
the	O
height	O
of	O
the	O
entire	O
case	O
,	O
a	O
significant	O
departure	O
from	O
the	O
small	O
labels	O
typically	O
used	O
on	O
prior	O
Macintosh	B-Device
computers	O
.	O
</s>
<s>
And	O
when	O
the	O
Power	B-Device
Mac	I-Device
G4	I-Device
was	O
introduced	O
,	O
print	O
ads	O
included	O
pictures	O
of	O
the	O
G4	O
chip	O
and	O
mentioned	O
its	O
AltiVec	B-General_Concept
instruction	O
set	O
by	O
its	O
own	O
marketing	O
name	O
,	O
"	O
Velocity	B-General_Concept
Engine	I-General_Concept
"	O
.	O
</s>
<s>
This	O
had	O
become	O
important	O
with	O
the	O
introduction	O
of	O
Intel	O
's	O
Pentium	B-General_Concept
4	I-General_Concept
,	O
which	O
featured	O
significantly	O
higher	O
clock	O
speeds	O
than	O
competing	O
chips	O
from	O
Sun	O
,	O
IBM	O
,	O
and	O
AMD	O
,	O
but	O
without	O
a	O
corresponding	O
performance	O
benefit	O
.	O
</s>
<s>
The	O
company	O
's	O
public	O
presentations	O
--	O
Stevenotes	O
in	O
particular	O
—	O
often	O
featured	O
lengthy	O
segments	O
pitting	O
a	O
high-powered	O
Compaq	O
or	O
Dell	O
computer	O
against	O
the	O
Power	B-Device
Macintosh	I-Device
in	O
a	O
series	O
of	O
benchmarks	O
and	O
scripted	O
tasks	O
,	O
usually	O
in	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
.	O
</s>
<s>
These	O
presentations	O
often	O
showed	O
the	O
Power	B-Device
Macintosh	I-Device
besting	O
Intel	O
's	O
Pentium	B-General_Concept
chips	O
by	O
margins	O
significantly	O
exceeding	O
50%	O
,	O
but	O
independent	O
benchmarks	O
did	O
not	O
bear	O
this	O
out	O
.	O
</s>
<s>
InfoWorld	O
reviewer	O
Jennifer	O
Plonka	O
reported	O
that	O
the	O
400MHz	O
G3	O
was	O
11%	O
slower	O
than	O
a	O
comparably-specced	O
Pentium	B-General_Concept
II-450	O
in	O
an	O
Office	O
applications	O
suite	O
test	O
,	O
while	O
Photoshop	B-Operating_System
5.0	O
was	O
faster	O
by	O
26%	O
.	O
</s>
<s>
And	O
in	O
2003	O
,	O
Maximum	O
PC	O
ran	O
a	O
variety	O
of	O
gaming	O
,	O
Photoshop	B-Operating_System
and	O
LightWave	B-Device
3D	I-Device
benchmarks	O
,	O
and	O
reported	O
that	O
the	O
Dual	O
1.25GHz	O
G4	O
system	O
was	O
about	O
half	O
the	O
speed	O
of	O
a	O
dual-processor	B-Operating_System
Intel	O
Xeon	O
Prestonia	O
2.8GHz	O
system	O
.	O
</s>
<s>
A	O
related	O
criticism	O
leveled	O
at	O
Power	B-Device
Mac	I-Device
systems	O
from	O
this	O
time	O
,	O
particularly	O
the	O
G4	O
Mirrored	O
Drive	O
Doors	O
,	O
was	O
the	O
increased	O
fan	O
noise	O
level	O
compared	O
to	O
older	O
systems	O
.	O
</s>
<s>
By	O
the	O
time	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
was	O
unveiled	O
at	O
Apple	O
's	O
Worldwide	O
Developers	O
Conference	O
in	O
July	O
2003	O
,	O
Apple	O
's	O
desktop	O
range	O
had	O
fallen	O
significantly	O
behind	O
competing	O
computers	O
in	O
performance	O
.	O
</s>
<s>
The	O
G5	B-Device
closed	O
much	O
of	O
this	O
gap	O
by	O
moving	O
to	O
the	O
PowerPC	B-General_Concept
970	I-General_Concept
processor	O
with	O
clock	O
speeds	O
up	O
to	O
2.0GHz	O
,	O
and	O
a	O
full	O
64-bit	O
architecture	O
.	O
</s>
<s>
InfoWorld	O
described	O
the	O
G5	B-Device
as	O
"	O
Apple	O
's	O
best	O
work	O
yet	O
"	O
,	O
and	O
said	O
it	O
"	O
delivers	O
on	O
the	O
present	O
need	O
for	O
rapid	O
computing	O
,	O
deep	O
multitasking	O
,	O
and	O
responsive	O
user	O
interfaces	O
—	O
as	O
well	O
as	O
the	O
future	O
need	O
for	O
mainstream	O
computers	O
that	O
rapidly	O
process	O
and	O
analyze	O
massive	O
data	O
sets.	O
"	O
</s>
<s>
PC	O
Magazine	O
again	O
awarded	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
with	O
its	O
Award	O
for	O
Technical	O
Excellence	O
for	O
2003	O
.	O
</s>
<s>
However	O
,	O
the	O
G5	B-Device
's	O
heavy	O
weight	O
(	O
10	O
pounds	O
more	O
than	O
the	O
previous	O
year	O
's	O
Quicksilver	O
Power	B-Device
Mac	I-Device
G4	I-Device
)	O
,	O
limited	O
internal	O
expansion	O
options	O
,	O
issues	O
with	O
ground	O
loop	O
,	O
and	O
noise	O
in	O
the	O
single-processor	O
models	O
 '	O
power	O
supply	O
units	O
resulted	O
in	O
significant	O
criticism	O
of	O
the	O
product	O
.	O
</s>
<s>
Apple	O
also	O
continued	O
to	O
make	O
unsubstantiated	O
performance	O
claims	O
about	O
the	O
new	O
Power	B-Device
Mac	I-Device
.	O
</s>
<s>
This	O
resulted	O
in	O
the	O
Advertising	O
Standards	O
Authority	O
for	O
the	O
United	O
Kingdom	O
banning	O
Apple	O
from	O
using	O
the	O
phrase	O
"	O
the	O
world	O
's	O
fastest	O
,	O
most	O
powerful	O
personal	B-Device
computer	I-Device
"	O
to	O
describe	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
after	O
independent	O
tests	O
carried	O
out	O
by	O
the	O
Broadcast	O
Advertising	O
Clearance	O
Centre	O
determined	O
the	O
claim	O
to	O
be	O
false	O
.	O
</s>
<s>
Another	O
claim	O
made	O
by	O
Steve	O
Jobs	O
at	O
the	O
2003	O
Worldwide	O
Developers	O
Conference	O
was	O
that	O
the	O
company	O
would	O
be	O
selling	O
a	O
3GHz	O
G5	B-Device
by	O
mid-2004	O
;	O
this	O
never	O
happened	O
.	O
</s>
<s>
Three	O
generations	O
of	O
Power	B-Device
Mac	I-Device
G5	I-Device
were	O
released	O
before	O
it	O
was	O
discontinued	O
during	O
the	O
Mac	B-Device
transition	I-Device
to	I-Device
Intel	I-Device
processors	I-Device
.	O
</s>
<s>
The	O
announcement	O
of	O
the	O
transition	O
came	O
in	O
mid-2005	O
,	O
but	O
the	O
third	O
generation	O
of	O
G5	B-Device
systems	O
was	O
introduced	O
towards	O
the	O
end	O
of	O
2005	O
.	O
</s>
<s>
Not	O
only	O
was	O
this	O
the	O
first	O
Apple	O
computer	O
with	O
four	O
processing	O
cores	O
,	O
it	O
was	O
the	O
first	O
to	O
incorporate	O
PCI	B-Protocol
Express	O
instead	O
of	O
PCI-X	O
for	O
internal	O
expansion	O
.	O
</s>
<s>
It	O
also	O
required	O
an	O
IEC	O
60320	O
C19	O
power	O
connector	O
that	O
was	O
more	O
common	O
on	O
rackmounted	O
server	O
hardware	O
,	O
instead	O
of	O
the	O
industry-standard	O
C13	O
connector	O
used	O
with	O
personal	B-Device
computers	I-Device
.	O
</s>
<s>
The	O
official	O
end	O
to	O
the	O
Power	B-Device
Macintosh	I-Device
line	O
came	O
at	O
the	O
2006	O
Worldwide	O
Developers	O
Conference	O
,	O
where	O
Phil	O
Schiller	O
introduced	O
its	O
replacement	O
,	O
the	O
Mac	B-Device
Pro	I-Device
.	O
</s>
<s>
The	O
G5	B-Device
's	O
enclosure	O
design	O
was	O
retained	O
for	O
the	O
Mac	B-Device
Pro	I-Device
and	O
continued	O
to	O
be	O
used	O
for	O
seven	O
more	O
years	O
,	O
making	O
it	O
among	O
the	O
longest-lived	O
designs	O
in	O
Apple	O
's	O
history	O
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
models	O
can	O
be	O
broadly	O
classified	O
into	O
two	O
categories	O
,	O
depending	O
on	O
whether	O
they	O
were	O
released	O
before	O
or	O
after	O
Apple	O
introduced	O
its	O
"	O
four	O
quadrant	O
"	O
product	O
strategy	O
in	O
1998	O
.	O
</s>
<s>
Before	O
the	O
introduction	O
of	O
the	O
Power	B-Device
Macintosh	I-Device
G3	I-Device
(	O
Blue	O
and	O
White	O
)	O
in	O
1999	O
,	O
Apple	O
had	O
shipped	O
Power	O
Macintosh-labelled	O
machines	O
in	O
nine	O
different	O
form	O
factors	O
,	O
some	O
of	O
which	O
were	O
carry-overs	O
from	O
pre-PowerPC	O
product	O
lines	O
,	O
such	O
as	O
the	O
Quadra/Centris	B-Device
610	I-Device
and	O
the	O
IIvx	B-Device
.	O
</s>
<s>
This	O
was	O
reduced	O
to	O
one	O
model	O
in	O
the	O
new	O
product	O
strategy	O
,	O
with	O
the	O
exception	O
of	O
the	O
Power	B-Device
Mac	I-Device
G4	I-Device
Cube	I-Device
in	O
2000	O
and	O
2001	O
.	O
</s>
<s>
Apple	O
named	O
Power	B-Device
Macintosh	I-Device
models	O
from	O
this	O
period	O
after	O
the	O
first	O
pre-PowerPC	O
model	O
of	O
Macintosh	B-Device
to	O
use	O
a	O
particular	O
form	O
factor	O
,	O
followed	O
by	O
a	O
slash	O
and	O
the	O
speed	O
of	O
the	O
CPU	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
Power	B-Device
Macintosh	I-Device
6300/120	I-Device
uses	O
the	O
Quadra	B-Device
630	I-Device
's	O
form	O
factor	O
and	O
has	O
a	O
CPU	O
.	O
</s>
<s>
Machines	O
with	O
"	O
PC	O
Compatible	O
"	O
in	O
their	O
name	O
include	O
a	O
separate	B-Device
card	I-Device
with	O
an	O
x86-compatible	O
CPU	O
;	O
these	O
models	O
are	O
therefore	O
capable	O
of	O
running	O
MS-DOS	B-Application
and	O
Microsoft	B-Application
Windows	I-Application
applications	O
,	O
typically	O
Windows	B-Application
3.1	I-Application
.	O
</s>
<s>
Machines	O
with	O
"	O
MP	O
"	O
in	O
their	O
name	O
denote	O
machines	O
that	O
include	O
two	O
CPUs	B-General_Concept
.	O
</s>
<s>
The	O
first	O
generation	O
uses	O
the	O
PowerPC	B-Architecture
601	O
and	O
603	B-General_Concept
processors	O
and	O
used	O
the	O
old	O
NuBus	B-Device
expansion	O
slots	O
,	O
while	O
the	O
second	O
generation	O
uses	O
the	O
faster	O
603e	O
,	O
604	O
and	O
604e	B-General_Concept
chips	O
as	O
well	O
as	O
industry-standard	O
PCI	B-Protocol
expansion	O
slots	O
.	O
</s>
<s>
The	O
second	O
generation	O
also	O
makes	O
use	O
of	O
Open	B-Architecture
Firmware	I-Architecture
,	O
allowing	O
them	O
to	O
more	O
easily	O
boot	O
alternate	O
operating	O
systems	O
(	O
including	O
OS	B-Application
X	I-Application
via	O
XPostFacto	B-Application
)	O
,	O
though	O
use	B-Device
of	I-Device
various	I-Device
hacks	I-Device
was	I-Device
still	I-Device
necessary	I-Device
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
4400	I-Device
is	O
a	O
desktop	B-General_Concept
case	I-General_Concept
with	O
a	O
height	O
of	O
,	O
suitable	O
for	O
horizontal	O
placement	O
with	O
a	O
monitor	O
on	O
top	O
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
5200	I-Device
is	O
an	O
all-in-one	O
form	O
factor	O
with	O
specifications	O
and	O
internal	O
designs	O
similar	O
to	O
the	O
Quadra	B-Device
630	I-Device
.	O
</s>
<s>
Collectively	O
these	O
machines	O
are	O
sometimes	O
referred	O
to	O
as	O
the	O
"	O
Power	O
Macintosh/Performa	O
5000	O
series	O
"	O
.	O
</s>
<s>
The	O
Centris	B-Device
610	I-Device
form	O
factor	O
is	O
a	O
low-profile	O
"	O
pizza-box	O
"	O
design	O
with	O
a	O
height	O
of	O
,	O
intended	O
to	O
be	O
placed	O
on	O
a	O
desktop	O
with	O
a	O
monitor	O
on	O
top	O
.	O
</s>
<s>
The	O
Quadra	B-Device
630	I-Device
form	O
factor	O
is	O
a	O
horizontally-oriented	O
design	O
with	O
a	O
height	O
of	O
,	O
suitable	O
for	O
placing	O
a	O
monitor	O
on	O
top	O
.	O
</s>
<s>
The	O
Performa	B-Device
6400	I-Device
form	O
factor	O
is	O
a	O
mini-tower	O
design	O
,	O
suitable	O
for	O
being	O
placed	O
beside	O
a	O
monitor	O
.	O
</s>
<s>
The	O
IIvx	B-Device
form	O
factor	O
is	O
a	O
horizontally-oriented	O
desktop	O
form	O
factor	O
with	O
a	O
height	O
of	O
,	O
suitable	O
for	O
placing	O
a	O
monitor	O
on	O
top	O
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
7500	I-Device
form	O
factor	O
is	O
a	O
horizontally-oriented	O
desktop	O
design	O
with	O
a	O
height	O
of	O
,	O
suitable	O
for	O
placing	O
a	O
monitor	O
on	O
top	O
.	O
</s>
<s>
The	O
Quadra	B-Device
800	I-Device
form	O
factor	O
is	O
a	O
mini-tower	O
design	O
,	O
with	O
a	O
width	O
of	O
.	O
</s>
<s>
The	O
Power	B-Device
Macintosh	I-Device
9600	I-Device
form	O
factor	O
is	O
a	O
mini-tower	O
design	O
with	O
a	O
width	O
of	O
.	O
</s>
<s>
Starting	O
with	O
the	O
Power	B-Device
Macintosh	I-Device
G3	I-Device
,	O
Apple	O
changed	O
its	O
product	O
naming	O
to	O
include	O
the	O
generation	O
of	O
PowerPC	B-Architecture
CPU	O
,	O
with	O
the	O
name	O
of	O
the	O
form	O
factor	O
or	O
a	O
key	O
feature	O
afterwards	O
in	O
brackets	O
.	O
</s>
<s>
The	O
all-in-one	O
models	O
would	O
eventually	O
be	O
spun	O
off	O
into	O
the	O
iMac	B-Device
line	O
,	O
whilst	O
the	O
compact	O
form	O
factor	O
models	O
would	O
be	O
spun	O
off	O
into	O
the	O
Mac	B-Device
Mini	I-Device
.	O
</s>
<s>
The	O
Power	B-Device
Mac	I-Device
G5	I-Device
's	O
name	O
was	O
changed	O
to	O
incorporate	O
the	O
time	O
period	O
in	O
which	O
the	O
model	O
was	O
released	O
.	O
</s>
<s>
The	O
Power	B-Device
Mac	I-Device
brand	O
name	O
was	O
used	O
for	O
Apple	O
's	O
high-end	O
tower	B-General_Concept
style	O
computers	O
,	O
targeted	O
primarily	O
at	O
businesses	O
and	O
creative	O
professionals	O
,	O
in	O
differentiation	O
to	O
their	O
more	O
compact	O
"	O
iMac	B-Device
"	O
line	O
(	O
intended	O
for	O
home	O
use	O
)	O
and	O
the	O
"	O
eMac	O
"	O
line	O
(	O
for	O
the	O
education	O
markets	O
)	O
.	O
</s>
<s>
Some	O
Power	B-Device
Mac	I-Device
G4	I-Device
and	O
G5	B-Device
models	O
were	O
offered	O
in	O
dual-processor	B-Operating_System
configurations	O
.	O
</s>
<s>
Prior	O
to	O
the	O
Power	B-Device
Mac	I-Device
name	O
change	O
,	O
certain	O
Power	B-Device
Macintosh	I-Device
models	O
were	O
otherwise	O
identical	O
to	O
their	O
lower-cost	O
re-branded	O
siblings	O
sold	O
as	O
the	O
Macintosh	B-Device
LC	I-Device
and	O
Macintosh	B-Device
Performa	I-Device
,	O
as	O
well	O
as	O
the	O
dedicated	O
Apple	B-Device
Workgroup	I-Device
Server	I-Device
and	O
Macintosh	B-Device
Server	I-Device
G3	I-Device
&	I-Device
G4	I-Device
lines	O
.	O
</s>
<s>
Other	O
past	O
Macintosh	B-Device
lines	O
which	O
used	O
PowerPC	B-Architecture
processors	I-Architecture
include	O
the	O
PowerBook	B-Device
5300	I-Device
and	O
later	O
models	O
,	O
iMac	B-Device
,	O
iBook	B-Device
and	O
Xserve	B-Device
as	O
well	O
as	O
the	O
Apple	B-Device
Network	I-Device
Server	I-Device
,	O
which	O
was	O
technically	O
not	O
a	O
Macintosh	B-Device
.	O
</s>
<s>
Apple	O
positioned	O
the	O
Power	B-Device
Macintosh	I-Device
as	O
a	O
high-end	O
personal	B-Device
computer	I-Device
aimed	O
at	O
businesses	O
and	O
creative	O
professionals	O
with	O
an	O
advertising	O
campaign	O
consisting	O
of	O
several	O
television	O
commercials	O
and	O
print	O
ads	O
.	O
</s>
<s>
The	O
television	O
commercials	O
used	O
the	O
slogan	O
"	O
The	O
Future	O
Is	O
Better	O
Than	O
You	O
Expected	O
"	O
,	O
featuring	O
the	O
first	O
three	O
Power	B-Device
Macintosh	I-Device
computers	O
to	O
showcase	O
special	O
features	O
such	O
as	O
networking	B-Architecture
and	O
MS-DOS	B-Application
compatibility	O
.	O
</s>
