<s>
The	O
Personal	B-Device
System/2	I-Device
Model	O
25	O
and	O
its	O
later	O
submodels	O
the	O
25	O
286	B-General_Concept
and	O
25	O
SX	O
are	O
IBM	O
's	O
lowest-end	O
entries	O
in	O
the	O
Personal	B-Device
System/2	I-Device
(	O
PS/2	B-Device
)	O
family	O
of	O
personal	O
computers	O
.	O
</s>
<s>
Like	O
its	O
sibling	O
the	O
Model	B-Device
30	I-Device
,	O
the	O
Model	O
25	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
but	O
not	O
from	O
higher	O
entries	O
in	O
the	O
PS/2	B-Device
line	O
,	O
which	O
use	O
Micro	B-Device
Channel	I-Device
.	O
</s>
<s>
Unlike	O
all	O
other	O
entries	O
in	O
the	O
PS/2	B-Device
line	O
,	O
the	O
Model	O
25	O
and	O
its	O
submodels	O
are	O
built	O
into	O
an	O
all-in-one	B-Device
form	O
factor	O
,	O
with	O
its	O
cathode-ray	B-Device
tube	I-Device
(	O
CRT	O
)	O
monitor	O
and	O
system	O
board	O
occupying	O
the	O
same	O
enclosure	O
.	O
</s>
<s>
It	O
is	O
the	O
fifth	O
entry	O
of	O
the	O
Personal	B-Device
System/2	I-Device
range	O
.	O
</s>
<s>
The	O
first	O
Model	O
25	O
is	O
powered	O
by	O
an	O
Intel	B-General_Concept
8086	I-General_Concept
running	O
at	O
8MHz	O
,	O
roughly	O
twice	O
the	O
speed	O
of	O
the	O
original	O
IBM	B-Device
Personal	I-Device
Computer	I-Device
.	O
</s>
<s>
A	O
college	O
student-oriented	O
version	O
of	O
the	O
Model	O
25	O
,	O
the	O
Collegiate	O
,	O
has	O
two	O
720	O
KB	O
floppy	O
drives	O
,	O
with	O
a	O
maximum	O
RAM	O
capacity	O
of	O
640	O
KB	O
,	O
and	O
was	O
packaged	O
with	O
the	O
official	O
PS/2	B-Device
Mouse	O
,	O
Windows	B-Application
2.0	I-Application
,	O
and	O
four	O
blank	O
floppy	O
disks	O
.	O
</s>
<s>
In	O
1990	O
,	O
IBM	O
released	O
the	O
Model	O
25	O
286	B-General_Concept
,	O
which	O
upgrades	O
the	O
original	O
to	O
an	O
Intel	B-General_Concept
80286	I-General_Concept
running	O
at	O
10MHz	O
.	O
</s>
<s>
The	O
later	O
25	O
286	B-General_Concept
and	O
25	O
SX	O
were	O
sold	O
with	O
a	O
hard	O
drive	O
as	O
an	O
option	O
.	O
</s>
<s>
When	O
the	O
stage	O
lights	O
came	O
up	O
,	O
the	O
illusion	O
was	O
shattered	O
and	O
I	O
saw	O
the	O
similarity	O
to	O
the	O
rest	O
of	O
the	O
PS/2	B-Device
line.	O
"	O
</s>
<s>
He	O
also	O
observed	O
that	O
the	O
space	O
for	O
the	O
top	O
ISA	B-Architecture
slot	I-Architecture
on	O
the	O
riser	B-Architecture
is	O
partially	O
obstructed	O
by	O
the	O
CRT	B-Device
monitor	I-Device
,	O
preventing	O
full-height	O
cards	O
from	O
fitting	O
into	O
that	O
slot	O
.	O
</s>
<s>
+	O
IBM	B-Device
PS/2	I-Device
Model	O
25	O
submodels	O
Model	O
IBM	O
Processor	O
Clock	O
speed	O
Bus	O
L2	O
cache	O
No	O
.	O
</s>
<s>
ofdrive	O
bays	O
Stockmemory	O
Monitor	O
Form	O
factor	O
Date	O
introduced	O
Notes	O
25	O
8525-001	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
one	O
720	O
KB	O
none	O
512	O
KB	O
12-in	O
.	O
</s>
<s>
monochrome	O
All-in-one	B-Device
Space	O
Saving	O
Keyboard	O
25	O
8525-004	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
one	O
720	O
KB	O
none	O
512	O
KB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
Space	O
Saving	O
Keyboard	O
25	O
8525-G01	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
one	O
720	O
KB	O
none	O
512	O
KB	O
12-in	O
.	O
</s>
<s>
monochrome	O
All-in-one	B-Device
25	O
8525-G04	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
one	O
720	O
KB	O
none	O
512	O
KB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
25	O
LS	O
8525-L01	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
one	O
720	O
KB	O
none	O
512	O
KB	O
12-in	O
.	O
</s>
<s>
monochrome	O
All-in-one	B-Device
Token	B-Device
Ring	I-Device
25	O
LS	O
8525-L04	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
one	O
720	O
KB	O
none	O
512	O
KB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
Token	B-Device
Ring	I-Device
25	O
Collegiate	O
8525-C02	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
two	O
720	O
KB	O
none	O
640	O
KB	O
12-in	O
.	O
</s>
<s>
monochrome	O
All-in-one	B-Device
Space	O
Saving	O
Keyboard	O
25	O
Collegiate	O
8525-K02	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
two	O
720	O
KB	O
none	O
640	O
KB	O
12-in	O
.	O
</s>
<s>
monochrome	O
All-in-one	B-Device
25	O
Collegiate	O
8525-C05	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
two	O
720	O
KB	O
none	O
640	O
KB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
Space	O
Saving	O
Keyboard	O
25	O
Collegiate	O
8525-K05	O
Intel	B-General_Concept
8086	I-General_Concept
8	O
(	O
0	O
)	O
ISA	B-Architecture
,	O
8-bit	O
0	O
2	O
2	O
two	O
720	O
KB	O
none	O
640	O
KB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
25	O
286	B-General_Concept
8525-006	O
Intel	B-General_Concept
80286	I-General_Concept
10	O
(	O
1	O
)	O
ISA	B-Architecture
,	O
16-bit	O
0	O
2	O
2	O
one	O
1.44	O
MB	O
none	O
1	O
MB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
Space	O
Saving	O
Keyboard	O
25	O
286	B-General_Concept
8525-036	O
Intel	B-General_Concept
80286	I-General_Concept
10	O
(	O
1	O
)	O
ISA	B-Architecture
,	O
16-bit	O
0	O
2	O
2	O
one	O
1.44	O
MB	O
30	O
MB	O
1	O
MB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
25	O
286	B-General_Concept
8525-G06	O
Intel	B-General_Concept
80286	I-General_Concept
10	O
(	O
1	O
)	O
ISA	B-Architecture
,	O
16-bit	O
0	O
2	O
2	O
one	O
1.44	O
MB	O
none	O
1	O
MB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
Space	O
Saving	O
Keyboard	O
25	O
286	B-General_Concept
8525-G36	O
Intel	B-General_Concept
80286	I-General_Concept
10	O
(	O
1	O
)	O
ISA	B-Architecture
,	O
16-bit	O
0	O
2	O
2	O
one	O
1.44	O
MB	O
30	O
MB	O
1	O
MB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
25	O
SX	O
8525-K00	O
Intel	O
80386SX	O
20	O
ISA	B-Architecture
,	O
16-bit	O
0	O
3	O
2	O
one	O
1.44	O
MB	O
1	O
MB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
25	O
SX	O
8525-K01	O
Intel	O
80386SX	O
20	O
ISA	B-Architecture
,	O
16-bit	O
0	O
3	O
2	O
one	O
1.44	O
MB	O
1	O
MB	O
12-in	O
.	O
</s>
<s>
color	O
All-in-one	B-Device
Ethernet	O
25	O
SX	O
8525-L02	O
Intel	O
80386SX	O
20	O
ISA	B-Architecture
,	O
16-bit	O
0	O
3	O
2	O
one	O
1.44	O
MB	O
1	O
MB	O
12-in	O
.	O
</s>
