<s>
Slot	B-Device
1	I-Device
refers	O
to	O
the	O
physical	O
and	O
electrical	O
specification	O
for	O
the	O
connector	O
used	O
by	O
some	O
of	O
Intel	O
's	O
microprocessors	O
,	O
including	O
the	O
Pentium	B-Device
Pro	I-Device
,	O
Celeron	B-Device
,	O
Pentium	B-General_Concept
II	I-General_Concept
and	O
the	O
Pentium	B-General_Concept
III	I-General_Concept
.	O
</s>
<s>
Intel	O
reverted	O
to	O
the	O
traditional	O
socket	O
interface	O
with	O
Socket	B-Device
370	I-Device
in	O
1999	O
.	O
</s>
<s>
With	O
the	O
introduction	O
of	O
the	O
Pentium	B-General_Concept
II	I-General_Concept
CPU	O
,	O
the	O
need	O
for	O
greater	O
access	O
for	O
testing	O
had	O
made	O
the	O
transition	O
from	O
socket	O
to	O
slot	O
necessary	O
.	O
</s>
<s>
Previously	O
with	O
the	O
Pentium	B-Device
Pro	I-Device
,	O
Intel	O
had	O
combined	O
processor	O
and	O
cache	O
dies	O
in	O
the	O
same	O
Socket	B-Device
8	I-Device
package	O
.	O
</s>
<s>
These	O
cards	O
could	O
also	O
be	O
easily	O
plugged	O
into	O
a	O
Slot	B-Device
1	I-Device
,	O
thereby	O
eliminating	O
the	O
chance	O
for	O
pins	O
of	O
a	O
typical	O
CPU	O
to	O
be	O
bent	O
or	O
broken	O
when	O
installing	O
in	O
a	O
socket	O
.	O
</s>
<s>
The	O
form	O
factor	O
used	O
for	O
Slot	B-Device
1	I-Device
was	O
a	O
5-inch-long	O
,	O
242-contact	O
edge	O
connector	O
named	O
SC242	O
.	O
</s>
<s>
To	O
discourage	O
Slot	O
A	O
users	O
from	O
trying	O
to	O
install	O
a	O
Slot	B-Device
1	I-Device
CPU	O
,	O
the	O
connector	O
was	O
rotated	O
180	O
degrees	O
on	O
Slot	O
A	O
motherboards	O
.	O
</s>
<s>
With	O
the	O
new	O
Slot	B-Device
1	I-Device
,	O
Intel	O
added	O
support	O
for	O
symmetric	B-Operating_System
multiprocessing	I-Operating_System
(	O
SMP	B-Operating_System
)	O
.	O
</s>
<s>
A	O
maximum	O
of	O
two	O
Pentium	B-General_Concept
II	I-General_Concept
or	O
Pentium	B-General_Concept
III	I-General_Concept
CPUs	O
can	O
be	O
used	O
in	O
a	O
dual	O
slot	O
motherboard	O
.	O
</s>
<s>
The	O
Celeron	B-Device
does	O
not	O
have	O
official	O
SMP	B-Operating_System
support	O
.	O
</s>
<s>
There	O
are	O
also	O
converter	O
cards	O
,	O
known	O
as	O
Slotkets	B-General_Concept
,	O
which	O
hold	O
a	O
Socket	B-Device
8	I-Device
so	O
that	O
a	O
Pentium	B-Device
Pro	I-Device
CPU	O
can	O
be	O
used	O
with	O
Slot	B-Device
1	I-Device
motherboards	O
.	O
</s>
<s>
Another	O
kind	O
of	O
slotket	B-General_Concept
allows	O
using	O
a	O
Socket	B-Device
370	I-Device
CPU	O
in	O
a	O
Slot	B-Device
1	I-Device
.	O
</s>
<s>
The	O
Single	B-Device
Edge	I-Device
Contact	I-Device
Cartridge	I-Device
,	O
or	O
"	O
SECC	O
"	O
,	O
was	O
used	O
at	O
the	O
beginning	O
of	O
the	O
Slot	O
1-era	O
for	O
Pentium	B-General_Concept
II	I-General_Concept
CPUs	O
.	O
</s>
<s>
The	O
back	O
of	O
the	O
housing	O
is	O
plastic	O
and	O
has	O
several	O
markings	O
on	O
it	O
:	O
the	O
name	O
,	O
"	O
Pentium	B-General_Concept
II	I-General_Concept
"	O
;	O
the	O
Intel	O
logo	O
;	O
a	O
hologram	B-Algorithm
;	O
and	O
the	O
model	O
number	O
.	O
</s>
<s>
Following	O
SECC	O
,	O
the	O
SEPP-form	O
(	O
Single	B-Device
Edge	I-Device
Processor	I-Device
Package	I-Device
)	O
appeared	O
on	O
the	O
market	O
.	O
</s>
<s>
It	O
was	O
designed	O
for	O
lower-priced	O
Celeron	B-Device
CPUs	O
.	O
</s>
<s>
A	O
form	O
factor	O
called	O
SECC2	O
was	O
used	O
for	O
late	O
Pentium	B-General_Concept
II	I-General_Concept
and	O
Pentium	B-General_Concept
III	I-General_Concept
CPUs	O
for	O
Slot	B-Device
1	I-Device
,	O
which	O
was	O
created	O
to	O
accommodate	O
the	O
switch	O
to	O
flip	B-Device
chip	I-Device
packaging	O
.	O
</s>
<s>
Historically	O
,	O
there	O
are	O
three	O
platforms	O
for	O
the	O
Intel	B-Device
P6	I-Device
CPUs	O
:	O
Socket	B-Device
8	I-Device
,	O
Slot	B-Device
1	I-Device
and	O
Socket	B-Device
370	I-Device
.	O
</s>
<s>
Slot	B-Device
1	I-Device
is	O
a	O
successor	O
to	O
Socket	B-Device
8	I-Device
.	O
</s>
<s>
While	O
the	O
Socket	B-Device
8	I-Device
CPUs	O
(	O
Pentium	B-Device
Pro	I-Device
)	O
directly	O
had	O
the	O
L2-cache	O
embedded	O
into	O
the	O
CPU	O
,	O
it	O
is	O
located	O
(	O
outside	O
of	O
the	O
core	O
)	O
on	O
a	O
circuit	O
board	O
shared	O
with	O
the	O
core	O
itself	O
.	O
</s>
<s>
The	O
exception	O
is	O
later	O
Slot	B-Device
1	I-Device
CPUs	O
with	O
the	O
Coppermine	O
core	O
which	O
have	O
the	O
L2-cache	O
embedded	O
into	O
the	O
die	O
.	O
</s>
<s>
In	O
the	O
beginning	O
of	O
2000	O
,	O
around	O
the	O
time	O
the	O
Coppermine	O
Pentium	B-General_Concept
III	I-General_Concept
CPUs	O
with	O
FC-PGA	O
housing	O
were	O
already	O
produced	O
,	O
Slot	B-Device
1	I-Device
was	O
slowly	O
succeeded	O
by	O
Socket	B-Device
370	I-Device
,	O
after	O
Intel	O
had	O
already	O
offered	O
Socket	B-Device
370	I-Device
and	O
Slot	B-Device
1	I-Device
CPUs	O
at	O
the	O
same	O
time	O
since	O
late	O
1998	O
.	O
</s>
<s>
Socket	B-Device
370	I-Device
was	O
initially	O
made	O
for	O
low-cost	O
Celeron	B-Device
processors	O
,	O
while	O
Slot	B-Device
1	I-Device
was	O
thought	O
of	O
as	O
a	O
platform	O
for	O
the	O
more	O
expensive	O
Pentium	B-General_Concept
II	I-General_Concept
and	O
early	O
Pentium	B-General_Concept
III	I-General_Concept
models	O
.	O
</s>
<s>
Slot	B-Device
1	I-Device
also	O
obsoleted	O
the	O
old	O
Socket	B-General_Concept
7	I-General_Concept
,	O
at	O
least	O
regarding	O
Intel	O
,	O
as	O
the	O
standard	O
platform	O
for	O
home	O
users	O
.	O
</s>
<s>
After	O
superseding	O
the	O
Intel	B-General_Concept
P5	I-General_Concept
Pentium	B-General_Concept
MMX	O
CPU	O
,	O
Intel	O
completely	O
left	O
the	O
Socket	B-General_Concept
7	I-General_Concept
market	O
.	O
</s>
<s>
Same	O
specifications	O
as	O
440LX	O
,	O
but	O
memory	O
support	O
limited	O
to	O
256MB	O
and	O
no	O
SMP	B-Operating_System
support	O
.	O
</s>
