<s>
Slot	B-Device
2	I-Device
refers	O
to	O
the	O
physical	O
and	O
electrical	O
specification	O
for	O
the	O
330-lead	O
Single	B-Device
Edge	I-Device
Contact	I-Device
Cartridge	I-Device
(	O
or	O
edge-connector	O
)	O
used	O
by	O
Intel	O
's	O
Pentium	B-General_Concept
II	I-General_Concept
Xeon	O
and	O
Pentium	B-General_Concept
III	I-General_Concept
Xeon	O
.	O
</s>
<s>
When	O
first	O
introduced	O
,	O
Slot	B-Device
1	I-Device
Pentium	B-General_Concept
IIs	I-General_Concept
were	O
intended	O
to	O
replace	O
the	O
Pentium	B-General_Concept
and	O
Pentium	B-Device
Pro	I-Device
processors	O
in	O
the	O
home	O
,	O
desktop	O
,	O
and	O
low-end	O
symmetric	B-Operating_System
multiprocessing	I-Operating_System
(	O
SMP	O
)	O
markets	O
.	O
</s>
<s>
The	O
Pentium	B-General_Concept
II	I-General_Concept
Xeon	O
,	O
which	O
was	O
aimed	O
at	O
multiprocessor	O
workstations	O
and	O
servers	O
,	O
was	O
largely	O
similar	O
to	O
the	O
ordinary	O
Pentium	B-General_Concept
II	I-General_Concept
,	O
being	O
based	O
on	O
the	O
same	O
P6	B-Device
Deschutes	O
core	O
,	O
differing	O
by	O
offering	O
the	O
choice	O
of	O
L2	O
cache	O
capacity	O
of	O
1024	O
or	O
2048KB	O
besides	O
512KB	O
,	O
and	O
by	O
operating	O
it	O
at	O
the	O
core	O
frequency	O
(	O
the	O
Pentium	B-General_Concept
II	I-General_Concept
used	O
cheaper	O
third-party	O
SRAM	O
chips	O
,	O
running	O
at	O
50%	O
of	O
CPU	O
speed	O
,	O
to	O
reduce	O
cost	O
)	O
.	O
</s>
<s>
Because	O
the	O
design	O
of	O
the	O
242-lead	O
Slot	B-Device
1	I-Device
connector	O
did	O
not	O
support	O
the	O
full-speed	O
L2	O
cache	O
of	O
the	O
Xeon	O
,	O
an	O
extended	O
330-lead	O
connector	O
was	O
developed	O
.	O
</s>
<s>
This	O
new	O
connector	O
,	O
dubbed	O
'	O
Slot	B-Device
2	I-Device
 '	O
,	O
was	O
used	O
for	O
Pentium	B-General_Concept
II	I-General_Concept
Xeon	O
(	O
codenamed	O
'	O
Drake	O
 '	O
)	O
and	O
Pentium	B-General_Concept
III	I-General_Concept
Xeon	O
(	O
codenamed	O
'	O
Tanner	O
 '	O
and	O
'	O
Cascades	O
 '	O
)	O
.	O
</s>
<s>
Slot	B-Device
2	I-Device
was	O
finally	O
replaced	O
by	O
the	O
Socket	B-Device
370	I-Device
with	O
the	O
revised	O
Pentium	B-General_Concept
III	I-General_Concept
codenamed	O
Tualatin	O
for	O
the	O
low	O
power	O
dual-processor	O
servers	O
,	O
and	O
by	O
Socket	B-Device
603	I-Device
with	O
Pentium	O
4-based	O
Xeon	O
(	O
codenamed	O
Foster	O
)	O
for	O
workstations	O
and	O
quad-processor	O
servers	O
.	O
</s>
