<s>
The	O
SPARCstation	B-Architecture
10	I-Architecture
(	O
codenamed	O
Campus-2	B-Architecture
)	O
is	O
a	O
workstation	B-Device
computer	I-Device
made	O
by	O
Sun	O
Microsystems	O
.	O
</s>
<s>
Announced	O
in	O
May	O
1992	O
,	O
it	O
was	O
Sun	O
's	O
first	O
desktop	O
multiprocessor	O
(	O
being	O
housed	O
in	O
a	O
pizza	B-General_Concept
box	I-General_Concept
form	I-General_Concept
factor	I-General_Concept
case	O
)	O
.	O
</s>
<s>
It	O
was	O
later	O
replaced	O
with	O
the	O
SPARCstation	B-Architecture
20	I-Architecture
.	O
</s>
<s>
The	O
40MHz	O
SPARCstation	B-Architecture
10	I-Architecture
without	O
external	O
cache	O
was	O
the	O
reference	O
for	O
the	O
SPEC	O
CPU95	O
benchmark	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
10	I-Architecture
(	O
SS10	O
)	O
contains	O
two	O
MBus	B-Architecture
slots	O
running	O
at	O
either	O
36MHz	O
(	O
33MHz	O
for	O
the	O
earliest	O
models	O
)	O
or	O
40MHz	O
(	O
set	O
via	O
motherboard	O
jumper	O
)	O
.	O
</s>
<s>
Each	O
MBus	B-Architecture
slot	O
can	O
contain	O
single	O
or	O
dual	O
SPARC	B-Architecture
CPU	O
modules	O
,	O
permitting	O
expansion	O
to	O
up	O
to	O
four	O
CPUs	O
.	O
</s>
<s>
Both	O
SuperSPARC	B-Device
and	O
hyperSPARC	B-General_Concept
CPU	O
modules	O
were	O
available	O
.	O
</s>
<s>
Single	O
SuperSPARC	B-Device
modules	O
without	O
external	O
cache	O
were	O
sold	O
by	O
Sun	O
;	O
they	O
ran	O
at	O
the	O
clock	O
speed	O
of	O
the	O
MBus	B-Architecture
(	O
uniprocessor	O
Models	O
20	O
,	O
30	O
and	O
40	O
;	O
dual	O
processor	O
Model	O
402	O
)	O
.	O
</s>
<s>
Single	O
and	O
a	O
few	O
dual	O
SuperSPARC	B-Device
modules	O
with	O
1	O
MB	O
external	O
cache	O
were	O
also	O
sold	O
;	O
they	O
were	O
independently	O
clocked	O
,	O
and	O
ran	O
at	O
a	O
higher	O
rate	O
than	O
the	O
MBus	B-Architecture
,	O
most	O
commonly	O
40.3MHz	O
or	O
50MHz	O
(	O
uniprocessor	O
Models	O
41	O
and	O
51	O
;	O
multiprocessor	O
Models	O
412	O
,	O
512	O
and	O
514	O
)	O
.	O
</s>
<s>
Sun	O
's	O
dual	O
50MHz	O
SuperSPARC	B-Device
modules	O
(	O
the	O
only	O
dual	O
MBus	B-Architecture
modules	O
supported	O
by	O
Sun	O
for	O
this	O
system	O
)	O
were	O
double-width	O
,	O
physically	O
occupying	O
one	O
SBus	B-Architecture
slot	O
per	O
module	O
in	O
addition	O
to	O
an	O
MBus	B-Architecture
slot	O
.	O
</s>
<s>
SuperSPARC	B-Device
modules	O
with	O
and	O
without	O
external	O
cache	O
could	O
not	O
be	O
mixed	O
.	O
</s>
<s>
SuperSPARC	B-Device
modules	O
with	O
external	O
cache	O
could	O
be	O
mixed	O
,	O
even	O
with	O
different	O
clock	O
speeds	O
,	O
but	O
this	O
was	O
not	O
a	O
Sun-supported	O
configuration	O
.	O
</s>
<s>
Ross	O
hyperSPARC	B-General_Concept
modules	O
were	O
also	O
available	O
from	O
third	O
party	O
vendors	O
.	O
</s>
<s>
The	O
SS10	O
had	O
reasonable	O
cooling	O
capacity	O
given	O
the	O
cramped	O
"	O
pizzabox	O
"	O
case	O
,	O
but	O
it	O
was	O
not	O
designed	O
for	O
some	O
of	O
the	O
higher-speed	O
hyperSPARC	B-General_Concept
modules	O
,	O
and	O
so	O
heat	O
issues	O
were	O
common	O
when	O
these	O
modules	O
were	O
used	O
,	O
particularly	O
in	O
four	O
CPU	O
configurations	O
.	O
</s>
<s>
The	O
SS10	O
's	O
enclosure	B-General_Concept
can	O
hold	O
two	O
50-pin	O
SCSI	B-Architecture
hard	B-Device
drives	I-Device
and	O
a	O
floppy	B-Device
disk	I-Device
drive	I-Device
.	O
</s>
<s>
Other	O
SCSI	B-Architecture
devices	O
can	O
be	O
attached	O
via	O
the	O
external	O
SCSI	B-Architecture
port	O
.	O
</s>
<s>
There	O
is	O
no	O
ATA	B-Protocol
disk	O
support	O
.	O
</s>
<s>
There	O
is	O
one	O
onboard	O
Ethernet	O
interface	O
,	O
which	O
can	O
be	O
accessed	O
from	O
a	O
built-in	O
10BASE-T	B-Protocol
jack	O
or	O
via	O
a	O
special	O
26-pin	O
port	O
that	O
provides	O
both	O
AUI	B-Protocol
and	O
audio	O
connections	O
;	O
only	O
one	O
of	O
these	O
network	O
ports	O
can	O
be	O
active	O
at	O
a	O
time	O
.	O
</s>
<s>
A	O
special	O
cable	O
or	O
adapter	O
is	O
needed	O
to	O
convert	O
the	O
latter	O
port	O
to	O
a	O
standard	O
DA-15	B-Protocol
connector	O
.	O
</s>
<s>
There	O
are	O
also	O
two	O
Basic	B-Protocol
Rate	I-Protocol
Interface	I-Protocol
(	O
BRI	O
)	O
ISDN	B-Protocol
connectors	O
;	O
the	O
system	O
shipped	O
with	O
plastic	O
blocking	O
plugs	O
inserted	O
in	O
these	O
connectors	O
.	O
</s>
<s>
Additional	O
SBus	B-Architecture
network	O
cards	O
can	O
also	O
be	O
added	O
.	O
</s>
<s>
Most	O
SPARCstation	B-Architecture
10	I-Architecture
systems	O
lack	O
integrated	O
graphics	O
.	O
</s>
<s>
A	O
very	O
few	O
,	O
referred	O
to	O
as	O
the	O
SPARCstation	B-Device
10SX	O
,	O
include	O
the	O
SX	O
,	O
or	O
CG14	O
,	O
framebuffer	B-Algorithm
used	O
on	O
the	O
SPARCstation	B-Architecture
20	I-Architecture
,	O
requiring	O
a	O
4	O
MB	O
or	O
8	O
MB	O
VSIMM	O
to	O
operate	O
.	O
</s>
<s>
All	O
SPARCstation	B-Architecture
10s	I-Architecture
seem	O
to	O
have	O
the	O
VSIMM	O
slots	O
,	O
a	O
cutout	O
in	O
the	O
case	O
and	O
solder	O
pads	O
for	O
the	O
SX	O
's	O
13W3	O
connector	O
.	O
</s>
<s>
Other	O
options	O
include	O
the	O
CG6	O
(	O
GX	O
,	O
GX+	O
,	O
Turbo	O
GX	O
and	O
TGX+	O
)	O
8-bit	O
SBus	B-Architecture
framebuffers	B-Algorithm
,	O
capable	O
of	O
up	O
to	O
1280×1024	O
resolution	O
in	O
8-bit	O
color	O
,	O
and	O
the	O
ZX	O
(	O
Leo	O
)	O
.	O
</s>
<s>
The	O
ZX	O
is	O
a	O
24-bit	O
card	O
with	O
hardware-accelerated	O
3D	O
operations	O
,	O
offering	O
high	O
speeds	O
and	O
resolutions	O
,	O
however	O
,	O
it	O
's	O
poorly	O
supported	O
,	O
takes	O
up	O
two	O
SBus	B-Architecture
slots	O
,	O
and	O
runs	O
extremely	O
hot	O
.	O
</s>
<s>
Its	O
faster	O
cousin	O
,	O
the	O
Turbo	O
ZX	O
,	O
requires	O
a	O
fan	O
card	O
,	O
taking	O
up	O
all	O
four	O
SBus	B-Architecture
slots	O
.	O
</s>
<s>
Full	O
support	O
is	O
only	O
available	O
in	O
Solaris	B-Application
2.4	O
through	O
2.6	O
,	O
though	O
the	O
2.6	O
drivers	O
can	O
be	O
made	O
to	O
work	O
in	O
Solaris	B-Application
7	I-Application
,	O
8	O
and	O
9	O
.	O
</s>
<s>
Linux	B-Application
includes	O
an	O
accelerated	O
driver	O
for	O
it	O
which	O
supports	O
2D	O
acceleration	O
features	O
,	O
but	O
no	O
3D	O
.	O
</s>
<s>
NetBSD	B-Device
and	O
OpenBSD	B-Operating_System
support	O
it	O
,	O
but	O
without	O
acceleration	O
,	O
while	O
NeXTSTEP	B-Application
and	O
OPENSTEP	O
have	O
no	O
support	O
whatsoever	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
10	I-Architecture
uses	O
a	O
battery-backed	O
NVRAM	B-General_Concept
module	O
to	O
hold	O
data	O
about	O
the	O
system	O
,	O
such	O
as	O
the	O
host	O
ID	O
(	O
serial	O
number	O
)	O
and	O
MAC	O
address	O
.	O
</s>
<s>
If	O
the	O
battery	O
on	O
the	O
chip	O
dies	O
,	O
then	O
the	O
NVRAM	B-General_Concept
module	O
must	O
be	O
replaced	O
(	O
or	O
modified	O
to	O
use	O
an	O
external	O
battery	O
)	O
,	O
and	O
the	O
NVRAM	B-General_Concept
must	O
be	O
reprogrammed	O
with	O
a	O
MAC	O
address	O
and	O
host	O
ID	O
.	O
</s>
<s>
Solaris	B-Application
(	O
Solaris	B-Application
2.1	O
to	O
9	O
;	O
Solaris	B-Application
10	I-Application
dropped	O
support	O
for	O
32-bit	O
SPARC	B-Architecture
systems	O
.	O
)	O
</s>
