<s>
The	O
Personal	B-Device
System/2	I-Device
Model	O
30	O
and	O
Personal	B-Device
System/2	I-Device
Model	O
30	O
286	B-General_Concept
are	O
IBM	O
's	O
entry-level	O
desktop	O
computers	O
in	O
their	O
Personal	B-Device
System/2	I-Device
(	O
PS/2	B-Protocol
)	O
family	O
of	O
personal	O
computers	O
.	O
</s>
<s>
As	O
opposed	O
to	O
higher-end	O
entries	O
in	O
the	O
PS/2	B-Protocol
line	O
which	O
use	O
Micro	B-Device
Channel	I-Device
bus	O
architecture	O
,	O
the	O
Model	O
30	O
features	O
an	O
Industry	B-Architecture
Standard	I-Architecture
Architecture	I-Architecture
bus	O
,	O
allowing	O
it	O
to	O
use	O
expansion	B-Device
cards	I-Device
from	O
its	O
direct	O
predecessors	O
,	O
the	O
PC/XT	B-Device
and	O
the	O
PC/AT	B-Operating_System
.	O
</s>
<s>
The	O
original	O
PS/2	B-Protocol
Model	O
30	O
is	O
built	O
upon	O
the	O
Intel	B-General_Concept
8086	I-General_Concept
microprocessor	O
clocked	O
at	O
8	O
MHz	O
;	O
the	O
Model	O
30	O
286	B-General_Concept
features	O
the	O
Intel	B-General_Concept
80286	I-General_Concept
clocked	O
at	O
10	O
MHz	O
.	O
</s>
<s>
The	O
PS/2	B-Protocol
Model	O
30	O
was	O
introduced	O
in	O
April	O
1987	O
alongside	O
the	O
Model	O
50	O
and	O
Model	O
60	O
—	O
entries	O
in	O
the	O
PS/2	B-Protocol
line	O
which	O
feature	O
the	O
new	O
Micro	B-Device
Channel	I-Device
architecture	I-Device
bus	O
,	O
as	O
opposed	O
to	O
the	O
Model	O
30	O
's	O
Industry	B-Architecture
Standard	I-Architecture
Architecture	I-Architecture
bus	O
previously	O
used	O
in	O
IBM	O
's	O
PC/XT	B-Device
.	O
</s>
<s>
The	O
Model	O
30	O
is	O
the	O
most	O
entry-level	O
in	O
the	O
PS/2	B-Protocol
lineup	O
,	O
with	O
the	O
dual-floppy-drive	O
unit	O
costing	O
1,695	O
and	O
the	O
floppy	O
–	O
hard	O
drive	O
combo	O
unit	O
costing	O
2,295	O
—	O
compared	O
to	O
$	O
3,595	O
for	O
the	O
basic	O
Model	O
50	O
.	O
</s>
<s>
With	O
a	O
variant	O
of	O
the	O
Intel	B-General_Concept
8086	I-General_Concept
microprocessor	O
clocked	O
at	O
8	O
MHz	O
,	O
the	O
Model	O
30	O
is	O
rated	O
roughly	O
two-and-a-half	O
times	O
faster	O
than	O
its	O
predecessors	O
,	O
according	O
to	O
IBM	O
,	O
while	O
occupying	O
a	O
chassis	O
roughly	O
half	O
the	O
size	O
.	O
</s>
<s>
The	O
Model	O
30	O
marks	O
the	O
first	O
time	O
IBM	O
used	O
this	O
variant	O
,	O
known	O
as	O
the	O
8086-2	B-General_Concept
,	O
in	O
a	O
PC	O
;	O
the	O
chip	O
die	O
was	O
nearly	O
nine	O
years	O
old	O
by	O
the	O
time	O
of	O
the	O
Model	O
30	O
's	O
introduction	O
.	O
</s>
<s>
On	O
launch	O
day	O
,	O
70,000	O
units	O
of	O
the	O
entire	O
PS/2	B-Protocol
line	O
—	O
including	O
the	O
Model	O
30	O
—	O
were	O
delivered	O
to	O
IBM	O
dealers	O
in	O
the	O
United	O
States	O
.	O
</s>
<s>
Computer	O
industry	O
analysts	O
speculated	O
that	O
this	O
relocation	O
was	O
to	O
free	O
up	O
production	O
lines	O
of	O
a	O
newer	O
,	O
more	O
advanced	O
entry	O
in	O
the	O
PS/2	B-Protocol
family	O
,	O
at	O
Boca	O
Raton	O
,	O
where	O
the	O
Models	O
50	O
,	O
60	O
,	O
and	O
80	O
were	O
also	O
being	O
made	O
.	O
</s>
<s>
These	O
Model	O
30s	O
were	O
intended	O
for	O
bank	O
tellers	O
and	O
came	O
packaged	O
with	O
a	O
50-key	O
function	O
keypad	B-Device
.	O
</s>
<s>
In	O
September	O
1988	O
,	O
IBM	O
launched	O
the	O
PS/2	B-Protocol
Model	O
30	O
286	B-General_Concept
,	O
which	O
features	O
the	O
Intel	B-General_Concept
80286	I-General_Concept
microprocessor	O
,	O
clocked	O
at	O
10	O
MHz	O
.	O
</s>
<s>
Per	O
the	O
updated	O
microprocessor	O
's	O
16-bit	O
external	O
data	O
bus	O
,	O
the	O
Model	O
30	O
286	B-General_Concept
also	O
sports	O
16-bit	O
ISA	B-Architecture
expansion	B-Device
slots	I-Device
,	O
allowing	O
the	O
computer	O
to	O
use	O
expansion	B-Device
cards	I-Device
designed	O
for	O
the	O
PC/AT	B-Operating_System
;	O
the	O
original	O
Model	O
30	O
has	O
8-bit	O
ISA	B-Architecture
slots	I-Architecture
as	O
used	O
in	O
the	O
PC/XT	B-Device
.	O
</s>
<s>
On	O
announcement	O
,	O
the	O
maximum	O
amount	O
of	O
RAM	B-Architecture
was	O
bumped	O
from	O
640KB	O
to	O
16	O
MB	O
—	O
the	O
maximum	O
addressable	O
amount	O
for	O
an	O
80286	B-General_Concept
processor	O
.	O
</s>
<s>
Additionally	O
the	O
integrated	O
graphics	O
chip	O
and	O
port	O
were	O
made	O
VGA	B-Protocol
—	O
a	O
graphics	O
chip	O
standard	O
which	O
IBM	O
introduced	O
with	O
the	O
higher-end	O
entries	O
of	O
the	O
PS/2	B-Protocol
line	O
.	O
</s>
<s>
The	O
Model	O
30	O
286	B-General_Concept
marks	O
IBM	O
's	O
return	O
to	O
the	O
AT-compatible	O
PC	O
market	O
,	O
which	O
IBM	O
had	O
set	O
with	O
the	O
release	O
of	O
the	O
PC/AT	B-Operating_System
in	O
1984	O
.	O
</s>
<s>
Like	O
the	O
Model	O
30	O
before	O
it	O
,	O
the	O
Model	O
30	O
286	B-General_Concept
was	O
also	O
manufactured	O
in	O
Raleigh	O
.	O
</s>
<s>
Both	O
the	O
Model	O
30	O
and	O
its	O
286	B-General_Concept
successor	O
feature	O
the	O
same	O
case	O
design	O
.	O
</s>
<s>
Their	O
"	O
bleached-beige	O
"	O
chassis	O
measures	O
—	O
roughly	O
a	O
third	O
in	O
volume	O
of	O
the	O
PC/AT	B-Operating_System
.	O
</s>
<s>
A	O
row	O
of	O
slots	B-Device
on	O
the	O
front	O
bezel	O
allow	O
air	O
to	O
passively	O
cool	O
the	O
components	O
inside	O
.	O
</s>
<s>
While	O
the	O
higher-end	O
PS/2s	B-Device
feature	O
a	O
modular	O
construction	O
with	O
card-edge	O
connectors	O
for	O
drives	O
and	O
a	O
tool-less	O
approach	O
to	O
user	O
servicing	O
,	O
the	O
Model	O
30	O
relies	O
on	O
ribbon	O
cables	O
for	O
these	O
connections	O
and	O
requires	O
the	O
removal	O
of	O
four	O
screws	O
to	O
undo	O
the	O
case	O
lid	O
.	O
</s>
<s>
Three	O
8-bit	O
ISA	B-Architecture
expansion	B-Device
slots	I-Device
are	O
contained	O
in	O
a	O
riser	B-Architecture
card	I-Architecture
running	O
perpendicular	O
to	O
the	O
system	O
board	O
,	O
with	O
the	O
expansion	B-Device
cards	I-Device
running	O
parallel	O
,	O
in	O
order	O
to	O
save	O
space	O
internally	O
and	O
reduce	O
the	O
computer	O
's	O
physical	O
footprint	O
.	O
</s>
<s>
The	O
original	O
Model	O
30	O
features	O
an	O
Intel	B-General_Concept
8086	I-General_Concept
at	O
8MHz	O
,	O
with	O
no	O
wait	B-Device
states	I-Device
.	O
</s>
<s>
It	O
provides	O
640KB	O
of	O
random-access	B-Architecture
memory	I-Architecture
—	O
128KB	O
worth	O
of	O
which	O
in	O
chips	O
soldered	O
to	O
the	O
system	O
board	O
,	O
and	O
the	O
remaining	O
512KB	O
in	O
the	O
form	O
of	O
removable	O
single	O
in-line	O
packages	O
.	O
</s>
<s>
The	O
soldered	O
RAM	B-Architecture
chips	I-Architecture
are	O
rated	O
for	O
125-nanosecond	O
operations	O
,	O
while	O
the	O
two	O
banks	O
of	O
SIP	O
RAM	B-Architecture
have	O
9-bit	O
chips	O
.	O
</s>
<s>
Several	O
VLSI	O
gate	O
arrays	O
on	O
the	O
system	O
board	O
consolidate	O
the	O
functions	O
of	O
parallel	O
,	O
serial	O
,	O
PS/2	B-Protocol
mouse	I-Protocol
and	O
keyboard	O
,	O
floppy	O
and	O
hard	O
disk	O
,	O
and	O
on-board	O
graphics	O
.	O
</s>
<s>
The	O
system	O
board	O
also	O
eliminates	O
jumpers	B-Device
for	O
storing	O
configuration	O
settings	O
;	O
these	O
settings	O
are	O
instead	O
configured	O
via	O
software	O
on	O
a	O
floppy	O
disk	O
provided	O
by	O
IBM	O
and	O
burned	O
to	O
the	O
BIOS	B-Operating_System
chip	I-Operating_System
.	O
</s>
<s>
Seek	O
tests	O
performed	O
on	O
the	O
3.5-inch	O
floppy	O
drive	O
revealed	O
that	O
it	O
performs	O
at	O
300	O
milliseconds	O
,	O
70	O
milliseconds	O
slower	O
than	O
the	O
5.25-inch	O
floppy	O
drive	O
featured	O
in	O
the	O
PC/AT	B-Operating_System
,	O
while	O
the	O
20MB	O
hard	O
drive	O
performs	O
at	O
80	O
milliseconds	O
—	O
half	O
the	O
speed	O
of	O
the	O
PC/AT	B-Operating_System
'	O
s	O
hard	O
drive	O
and	O
marginally	O
better	O
than	O
the	O
PC/XT	B-Device
'	O
s	O
.	O
</s>
<s>
IBM	O
developed	O
a	O
bespoke	O
display	O
standard	O
for	O
the	O
Model	O
30	O
,	O
dubbed	O
Multi-Color	B-Device
Graphics	I-Device
Array	I-Device
(	O
MCGA	O
)	O
.	O
</s>
<s>
This	O
display	O
incorporates	O
elements	O
of	O
IBM	O
's	O
more-capable	O
Video	B-Protocol
Graphics	I-Protocol
Array	I-Protocol
(	O
VGA	B-Protocol
)	O
,	O
as	O
introduced	O
in	O
higher-end	O
models	O
of	O
the	O
PS/2	B-Protocol
family	O
,	O
into	O
the	O
earlier	O
Color	B-Device
Graphics	I-Device
Adapter	I-Device
standard	O
introduced	O
back	O
in	O
1981	O
.	O
</s>
<s>
These	O
include	O
a	O
2-color	O
640-by-480-pixel	O
graphics	O
mode	O
,	O
a	O
256-color	O
320-by-200-pixel	O
graphics	O
mode	O
(	O
at	O
a	O
so-called	O
"	O
VCR-like	O
resolution	O
"	O
)	O
,	O
VGA	B-Protocol
's	O
15-pin	O
D-sub	B-Protocol
connector	I-Protocol
and	O
analog	O
color	O
signals	O
,	O
and	O
a	O
text	O
mode	O
with	O
a	O
8-by-16-pixel	O
character	O
size	O
(	O
two	O
pixels	O
taller	O
than	O
EGA	O
's	O
text	O
mode	O
characters	O
)	O
.	O
</s>
<s>
Internally	O
,	O
the	O
Model	O
30	O
286	B-General_Concept
features	O
an	O
Intel	B-General_Concept
80286	I-General_Concept
microprocessor	O
clocked	O
at	O
10MHz	O
.	O
</s>
<s>
Instead	O
of	O
the	O
pin-grid-array	B-Algorithm
version	O
of	O
the	O
80286	B-General_Concept
as	O
used	O
in	O
earlier	O
IBM	O
machines	O
,	O
the	O
company	O
opted	O
for	O
the	O
plastic-leaded	O
chip	O
carrier	O
version	O
of	O
the	O
80286	B-General_Concept
,	O
which	O
was	O
less	O
expensive	O
to	O
produce	O
and	O
is	O
less	O
susceptible	O
to	O
damage	O
when	O
the	O
user	O
removes	O
it	O
from	O
the	O
chip	O
's	O
socket	O
.	O
</s>
<s>
The	O
optional	O
math	O
co-processor	O
slot	O
meanwhile	O
only	O
supports	O
dual-in-line-packaged	B-Algorithm
80287s	O
.	O
</s>
<s>
The	O
packaging	O
of	O
removable	O
RAM	B-Architecture
was	O
upgraded	O
from	O
125-ns	O
SIPs	O
to	O
120-ns	O
SIMMs	B-General_Concept
for	O
the	O
Model	O
30	O
286	B-General_Concept
;	O
only	O
256-kilobit	O
or	O
1-megabit	O
SIMMs	B-General_Concept
are	O
supported	O
—	O
the	O
latter	O
used	O
in	O
the	O
stock	O
512KB	O
of	O
RAM	B-Architecture
.	O
</s>
<s>
It	O
is	O
necessary	O
to	O
install	O
identical	O
SIMMs	B-General_Concept
in	O
each	O
of	O
the	O
four	O
sockets	O
available	O
,	O
meaning	O
that	O
RAM	B-Architecture
sizes	O
beyond	O
512KB	O
are	O
limited	O
to	O
1MB	O
,	O
2MB	O
,	O
and	O
4MB	O
total	O
.	O
</s>
<s>
The	O
computer	O
supports	O
up	O
to	O
16MB	O
of	O
RAM	B-Architecture
on	O
a	O
third-party	O
external	O
expansion	B-Device
card	I-Device
.	O
</s>
<s>
The	O
more	O
critical	O
of	O
these	O
ASICs	O
are	O
the	O
chipsets	B-Device
defining	O
its	O
AT	O
compatibility	O
,	O
which	O
were	O
developed	O
by	O
VLSI	O
Technology	O
.	O
</s>
<s>
These	O
ASICs	O
are	O
packaged	O
as	O
surface-mount	O
devices	O
soldered	O
to	O
the	O
board	O
;	O
virtually	O
the	O
only	O
through-hole	B-Algorithm
devices	O
on	O
the	O
board	O
comprise	O
the	O
three	O
ROMs	O
(	O
one	O
keyboard	O
controller	O
and	O
two	O
BIOS	B-Operating_System
ROMs	O
)	O
,	O
the	O
80286	B-General_Concept
,	O
and	O
the	O
optional	O
80287	O
—	O
only	O
because	O
they	O
come	O
in	O
sockets	O
.	O
</s>
<s>
The	O
Model	O
30	O
286	B-General_Concept
abandons	O
MCGA	O
for	O
full	O
VGA	B-Protocol
compatibility	O
.	O
</s>
<s>
The	O
VGA	B-Protocol
circuitry	O
is	O
backwards-compatible	O
with	O
EGA	O
,	O
CGA	B-Device
,	O
and	O
MDA	B-Device
and	O
supports	O
up	O
to	O
a	O
resolution	O
of	O
640	O
by	O
480	O
pixels	O
at	O
16	O
colors	O
,	O
as	O
well	O
as	O
320	O
by	O
200	O
at	O
256	O
colors	O
.	O
</s>
<s>
As	O
the	O
VGA	B-Protocol
standard	O
is	O
fundamentally	O
analog	O
,	O
IBM	O
recommended	O
users	O
purchase	O
their	O
IBM	B-Device
PS/2	I-Device
-styled	O
VGA	B-Protocol
CRT	B-Device
monitors	I-Device
,	O
available	O
with	O
either	O
monochrome	O
or	O
color	O
picture	B-Device
tubes	I-Device
—	O
neither	O
included	O
in	O
the	O
base	O
price	O
of	O
the	O
Model	O
30	O
286	B-General_Concept
.	O
</s>
<s>
The	O
Model	O
30	O
286	B-General_Concept
's	O
VGA	B-Protocol
circuitry	O
can	O
detect	O
whether	O
a	O
monochrome	O
or	O
color	O
IBM	O
monitor	O
is	O
attached	O
,	O
providing	O
an	O
optimized	O
palette	O
of	O
64	O
shades	O
of	O
gray	O
for	O
the	O
monochrome	O
display	O
.	O
</s>
<s>
The	O
Model	O
30	O
286	B-General_Concept
's	O
data	O
path	O
for	O
its	O
VGA	B-Protocol
circuitry	O
is	O
8-bits	O
wide	O
,	O
compared	O
to	O
most	O
of	O
the	O
rest	O
of	O
the	O
system	O
's	O
16-bit	O
wide	O
data	O
paths	O
,	O
and	O
the	O
teletype	O
video	O
routines	O
,	O
as	O
located	O
in	O
its	O
ROM	O
,	O
perform	O
slower	O
than	O
on	O
other	O
members	O
of	O
the	O
PS/2	B-Protocol
range	O
with	O
80386	B-General_Concept
processors	O
owing	O
to	O
the	O
286	B-General_Concept
's	O
inability	O
to	O
copy	O
(	O
"	O
shadow	O
"	O
)	O
ROM	O
into	O
RAM	B-Architecture
.	O
</s>
<s>
IBM	O
manufactured	O
the	O
Model	O
30	O
286	B-General_Concept
's	O
optional	O
20MB	O
hard	O
drive	O
,	O
while	O
Alps	O
manufactured	O
its	O
1.44MB	O
floppy	O
drives	O
and	O
Delta	O
Electronics	O
manufactured	O
its	O
non-autoranging	O
90.75W	O
power	O
supply	O
unit	O
.	O
</s>
<s>
The	O
hard	O
drive	O
writes	O
data	O
using	O
the	O
MFM	B-Protocol
encoding	I-Protocol
standard	O
;	O
like	O
the	O
one	O
in	O
the	O
original	O
Model	O
30	O
before	O
it	O
,	O
journalists	O
remarked	O
it	O
as	O
being	O
slow	O
.	O
</s>
<s>
It	O
paled	O
in	O
comparison	O
to	O
the	O
AT	O
's	O
,	O
according	O
to	O
PC	O
Magazine	O
,	O
due	O
to	O
IBM	O
limiting	O
its	O
data	O
path	O
to	O
an	O
8-bit	O
width	O
and	O
reducing	O
the	O
interleave	B-Application
skip	I-Application
factor	I-Application
from	O
three	O
to	O
two	O
.	O
</s>
<s>
IBM	O
included	O
a	O
disk-caching	B-General_Concept
utility	O
on	O
the	O
included	O
Reference	O
Disk	O
in	O
an	O
attempt	O
to	O
help	O
users	O
offset	O
its	O
slowness	O
.	O
</s>
<s>
For	O
example	O
,	O
it	O
was	O
the	O
only	O
entry	O
in	O
the	O
PS/2	B-Protocol
lineup	O
not	O
to	O
have	O
a	O
backlog	O
of	O
orders	O
in	O
June	O
1987	O
.	O
</s>
<s>
The	O
Model	O
30	O
represented	O
only	O
10	O
percent	O
of	O
the	O
250,000	O
PS/2s	B-Device
sold	O
between	O
the	O
beginning	O
of	O
April	O
and	O
the	O
end	O
of	O
May	O
1987	O
.	O
</s>
<s>
Norman	O
Dewitt	O
of	O
Dataquest	O
speculated	O
that	O
the	O
Model	O
30	O
was	O
sold	O
at	O
an	O
artificially	O
high	O
price	O
until	O
remaining	O
inventory	O
of	O
PC/AT	B-Operating_System
and	O
PC/XT	B-Device
were	O
depleted	O
.	O
</s>
<s>
Despite	O
its	O
relative	O
lackluster	O
performance	O
in	O
the	O
marketplace	O
,	O
the	O
Model	O
30	O
sold	O
the	O
best	O
of	O
all	O
PS/2s	B-Device
in	O
the	O
retail	O
space	O
.	O
</s>
<s>
The	O
Model	O
30	O
286	B-General_Concept
in	O
1988	O
was	O
seen	O
as	O
IBM	O
's	O
attempt	O
to	O
target	O
the	O
low-end	O
of	O
single-user	O
systems	O
users	O
,	O
a	O
segment	O
where	O
the	O
PS/2	B-Protocol
line	O
had	O
performed	O
poorly	O
as	O
a	O
whole	O
.	O
</s>
<s>
He	O
clocked	O
its	O
number-crunching	O
performance	O
as	O
slightly	O
faster	O
than	O
the	O
8086-equipped	O
Deskpro	B-Device
from	O
Compaq	O
and	O
the	O
6300	B-Operating_System
Plus	I-Operating_System
from	O
AT&T	O
and	O
on	O
par	O
with	O
an	O
8-MHz	O
NEC	B-Device
V30	I-Device
–	O
equipped	O
Wang	O
laptop	O
.	O
</s>
<s>
Satchell	O
and	O
InfoWorld	O
editors	O
also	O
encountered	O
difficulty	O
with	O
installing	O
expansion	B-Device
cards	I-Device
,	O
finding	O
that	O
the	O
plastic	O
shroud	O
of	O
the	O
riser	B-Architecture
card	I-Architecture
provided	O
barely	O
any	O
support	O
,	O
leading	O
to	O
that	O
card	O
slipping	O
out	O
of	O
its	O
slot	O
during	O
expansion	B-Device
card	I-Device
installation	O
and	O
liable	O
to	O
break	O
in	O
two	O
without	O
users	O
supporting	O
the	O
riser	O
from	O
the	O
back	O
with	O
their	O
hands	O
when	O
installing	O
cards	O
.	O
</s>
<s>
In	O
particular	O
Venditto	O
praised	O
the	O
computer	O
's	O
"	O
rock-solid	O
construction	O
"	O
standard	O
of	O
IBM	O
computers	O
of	O
the	O
time	O
and	O
felt	O
that	O
the	O
MCGA	O
standard	O
afforded	O
users	O
an	O
opportunity	O
"	O
to	O
buy	O
into	O
a	O
piece	O
of	O
IBM	O
's	O
new	O
analog	O
graphics	O
standard	O
 [ VGA ] 	O
at	O
the	O
ground	O
floor	O
"	O
.	O
</s>
<s>
Venditto	O
later	O
wrote	O
that	O
the	O
Model	O
30	O
's	O
power	O
supply	O
,	O
which	O
was	O
rated	O
for	O
a	O
little	O
less	O
than	O
half	O
the	O
wattage	O
of	O
the	O
PC/XT	B-Device
,	O
was	O
not	O
as	O
accommodating	O
for	O
power-hungry	O
expansion	B-Device
cards	I-Device
and	O
wrote	O
that	O
the	O
riser	B-Architecture
card	I-Architecture
made	O
installing	O
hardcards	B-Device
a	O
potentially	O
risky	O
proposition	O
.	O
</s>
<s>
He	O
concluded	O
that	O
the	O
Model	O
30	O
overall	O
acted	O
as	O
"	O
IBM	O
's	O
link	O
to	O
the	O
new	O
world	O
...	O
the	O
computer	O
that	O
can	O
help	O
wean	O
the	O
weary	O
away	O
from	O
PC	O
compatibles	O
and	O
get	O
them	O
thinking	O
about	O
the	O
extra	O
power	O
and	O
better	O
graphics	O
available	O
"	O
when	O
ready	O
for	O
the	O
rest	O
of	O
the	O
PS/2	B-Protocol
range	O
.	O
</s>
<s>
Rosch	O
of	O
PC	O
Magazine	O
called	O
the	O
Model	O
30	O
286	B-General_Concept
's	O
case	O
trim	O
and	O
its	O
internals	O
"	O
elegantly	O
spare	O
"	O
,	O
with	O
impeccable	O
cable	O
management	O
owing	O
to	O
IBM	O
's	O
use	O
of	O
shorter	O
cables	O
for	O
its	O
floppy	O
and	O
hard	O
drives	O
,	O
which	O
are	O
tucked	O
and	O
folded	O
mostly	O
out	O
of	O
sight	O
.	O
</s>
<s>
Rosch	O
rebuked	O
some	O
industry	O
commentators	O
 '	O
opinions	O
that	O
the	O
Model	O
30	O
286	B-General_Concept
was	O
a	O
rechristened	O
AT	O
or	O
that	O
it	O
represented	O
"	O
IBM	O
's	O
attempt	O
at	O
cloning	O
an	O
IBM	O
clone	O
"	O
:	O
"	O
It	O
's	O
no	O
more	O
a	O
clone	O
's	O
clone	O
than	O
the	O
original	O
Model	O
30	O
.	O
</s>
<s>
Pitted	O
against	O
the	O
PS/2	B-Protocol
Model	O
50	O
,	O
Rosch	O
proffered	O
that	O
the	O
Model	O
30	O
286	B-General_Concept
's	O
significantly	O
lower	O
price	O
was	O
to	O
position	O
non	O
–	O
Micro	B-Device
Channel	I-Device
computers	O
,	O
especially	O
economy	O
AT	O
clones	O
from	O
Blue	O
Chip	O
and	O
Hyundai	O
,	O
as	O
"	O
second-rate	O
cousins	O
"	O
.	O
</s>
<s>
Mitt	O
Jones	O
of	O
the	O
same	O
magazine	O
was	O
more	O
understated	O
in	O
his	O
praise	O
,	O
writing	O
that	O
the	O
"	O
low-key	O
atmosphere	O
"	O
of	O
IBM	O
's	O
announcements	O
of	O
the	O
Model	O
30	O
286	B-General_Concept
in	O
Manhattan	O
positioned	O
the	O
computer	O
as	O
"	O
merely	O
a	O
...	O
workstation	O
in	O
IBM	O
's	O
connectivity-minded	O
plans	O
"	O
.	O
</s>
<s>
Jones	O
also	O
criticized	O
the	O
lack	O
of	O
further	O
expansion	B-Device
ports	I-Device
on	O
the	O
riser	O
,	O
writing	O
:	O
"	O
You	O
can	O
forget	O
about	O
additional	O
serial	O
or	O
parallel	O
ports	O
...	O
and	O
any	O
memory	O
boards	O
you	O
have	O
lying	O
around	O
from	O
your	O
old	O
AT	O
,	O
not	O
to	O
mention	O
niceties	O
such	O
as	O
fax	O
boards	O
and	O
MIDI	O
interfaces.	O
"	O
</s>
<s>
+	O
IBM	B-Device
PS/2	I-Device
Model	O
30	O
submodels	O
Model	O
IBM	O
Processor	O
Clock	O
speed	O
Bus	O
L2	O
cache	O
No	O
.	O
</s>
