<s>
The	O
SPARCstation	B-Architecture
1	I-Architecture
(	O
Sun	O
4/60	O
,	O
code-named	O
Campus	O
)	O
is	O
the	O
first	O
of	O
the	O
SPARCstation	B-Device
series	O
of	O
SPARC-based	O
computer	B-Device
workstations	I-Device
sold	O
by	O
Sun	O
Microsystems	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
1	I-Architecture
has	O
a	O
distinctive	O
slim	O
enclosure	O
(	O
a	O
square	O
3-inch-high	O
"	O
pizza	B-General_Concept
box	I-General_Concept
"	O
)	O
and	O
was	O
first	O
sold	O
in	O
April	O
1989	O
,	O
with	O
Sun	O
's	O
support	O
ending	O
in	O
1995	O
.	O
</s>
<s>
Based	O
on	O
a	O
LSI	O
Logic	O
RISC	B-Architecture
CPU	B-General_Concept
running	O
at	O
20MHz	O
,	O
with	O
a	O
Weitek	O
3170	O
(	O
or	O
3172	O
)	O
FPU	B-General_Concept
coprocessor	B-General_Concept
,	O
it	O
was	O
the	O
fourth	O
Sun	O
computer	O
(	O
after	O
the	O
4/260	O
,	O
4/110	O
and	O
4/280	O
)	O
to	O
use	O
the	O
SPARC	B-Architecture
architecture	O
and	O
the	O
first	O
of	O
the	O
sun4c	B-Device
architecture	O
.	O
</s>
<s>
The	O
motherboard	O
offered	O
three	O
SBus	B-Architecture
slots	O
and	O
had	O
built-in	O
AUI	B-Protocol
Ethernet	O
,	O
8kHz	O
audio	O
,	O
and	O
a	O
5	O
MB/s	O
SCSI-1	B-Architecture
bus	O
.	O
</s>
<s>
Designed	O
for	O
ease	O
of	O
production	O
to	O
compete	O
with	O
high-end	O
PCs	O
or	O
Macs	O
(	O
its	O
principal	O
competitors	O
were	O
the	O
IBM	B-Device
PS/2	I-Device
Model	O
80	O
,	O
the	O
NeXT	B-Device
Computer	I-Device
,	O
and	O
Sun	O
's	O
own	O
3/80	B-Device
)	O
,	O
it	O
sold	O
for	O
between	O
about	O
US$	O
9,000	O
(	O
with	O
no	O
hard	O
disks	O
)	O
,	O
to	O
US$	O
20,000	O
and	O
in	O
the	O
first	O
year	O
around	O
35,000	O
units	O
were	O
sold	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
1	I-Architecture
features	O
several	O
distinctive	O
design	O
and	O
packaging	O
elements	O
driven	O
internally	O
by	O
system	O
designer	O
Andy	O
Bechtolsheim	O
and	O
externally	O
by	O
design	O
house	O
frog	O
design	O
.	O
</s>
<s>
Bechtolsheim	O
specified	O
that	O
the	O
motherboard	O
would	O
be	O
the	O
size	O
of	O
a	O
sheet	O
of	O
paper	O
and	O
the	O
SBus	B-Architecture
expansion	O
cards	O
would	O
be	O
the	O
size	O
of	O
index	O
cards	O
,	O
resulting	O
in	O
an	O
extremely	O
compact	O
footprint	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
1	I-Architecture
takes	O
30-pin	O
SIMMs	B-General_Concept
in	O
groups	O
of	O
four	O
.	O
</s>
<s>
It	O
can	O
take	O
either	O
1MB	O
or	O
4MB	O
SIMMs	B-General_Concept
as	O
long	O
as	O
the	O
size	O
is	O
consistent	O
within	O
a	O
bank	O
.	O
</s>
<s>
If	O
not	O
,	O
the	O
OpenBoot	B-Architecture
firmware	B-Application
will	O
hang	O
while	O
memory	O
checking	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
1	I-Architecture
has	O
space	O
for	O
up	O
to	O
two	O
hard	O
drives	O
and	O
one	O
floppy	O
drive	O
internally	O
.	O
</s>
<s>
The	O
machine	O
will	O
take	O
any	O
50-pin	O
SCSI-2	O
hard	O
drive	O
,	O
but	O
the	O
OpenBoot	B-Architecture
firmware	B-Application
will	O
not	O
boot	O
from	O
any	O
partition	O
which	O
starts	O
or	O
ends	O
after	O
1024MB	O
.	O
</s>
<s>
The	O
floppy	O
drive	O
,	O
like	O
the	O
Macintosh	B-Device
's	O
,	O
is	O
unusual	O
in	O
that	O
it	O
has	O
an	O
electromechanical	O
eject	O
mechanism	O
rather	O
than	O
the	O
conventional	O
eject	O
button	O
,	O
and	O
therefore	O
must	O
be	O
ejected	O
by	O
the	O
operating	O
system	O
or	O
OpenBoot	B-Architecture
.	O
</s>
<s>
The	O
machine	O
can	O
connect	O
to	O
any	O
SCSI	B-Architecture
CD	O
drive	O
,	O
via	O
either	O
the	O
SCSI	B-Architecture
connector	O
on	O
the	O
back	O
or	O
by	O
connecting	O
it	O
to	O
any	O
spare	O
internal	O
SCSI	B-Architecture
connector	O
via	O
a	O
50-pin	O
cable	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
1	I-Architecture
comes	O
with	O
an	O
on-board	O
AMD	O
Lance	O
Ethernet	O
chipset	O
and	O
a	O
15-pin	O
AUI	B-Protocol
connector	O
,	O
which	O
can	O
connect	O
to	O
10BASE2	O
,	O
10BASE5	O
or	O
10BASE-T	O
via	O
an	O
appropriate	O
transceiver	O
.	O
</s>
<s>
The	O
OpenBoot	B-Architecture
ROM	O
is	O
able	O
to	O
boot	O
from	O
network	O
,	O
using	O
RARP	O
and	O
TFTP	O
.	O
</s>
<s>
Like	O
all	O
other	O
SPARCstation	B-Device
systems	O
,	O
the	O
SPARCstation	B-Architecture
1	I-Architecture
holds	O
system	O
information	O
such	O
as	O
MAC	B-Device
address	O
and	O
host	O
id	O
(	O
serial	O
number	O
)	O
in	O
NVRAM	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
1	I-Architecture
uses	O
an	O
M48T02	O
battery-backed	O
RTC	O
with	O
RAM	O
chip	O
which	O
handles	O
the	O
real	O
time	O
clock	O
and	O
boot	O
parameter	O
storage	O
.	O
</s>
<s>
As	O
all	O
SPARCstation	B-Architecture
1s	I-Architecture
made	O
are	O
now	O
older	O
than	O
the	O
battery	O
life	O
of	O
this	O
chip	O
,	O
a	O
substantial	O
number	O
of	O
these	O
systems	O
now	O
refuse	O
to	O
boot	O
.	O
</s>
<s>
Additionally	O
,	O
the	O
SPARCstation	B-Architecture
1	I-Architecture
design	O
used	O
the	O
reserved	O
bits	O
in	O
the	O
M48T02	O
's	O
NVRAM	O
in	O
a	O
non-standard	O
way	O
;	O
since	O
later	O
revisions	O
of	O
the	O
M48T02	O
chip	O
exert	O
stricter	O
control	O
over	O
these	O
bits	O
,	O
a	O
current	O
M48T02	O
will	O
store	O
the	O
NVRAM	O
data	O
,	O
but	O
the	O
RTC	O
will	O
not	O
function	O
correctly	O
and	O
the	O
system	O
may	O
fail	O
to	O
auto-boot	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
1	I-Architecture
,	O
1+	O
,	O
IPC	O
and	O
SLC	O
can	O
run	O
the	O
following	O
operating	O
systems	O
:	O
</s>
<s>
Four	O
or	O
five	O
SPARCstation	B-Architecture
1	I-Architecture
units	O
were	O
used	O
by	O
Game	O
Freak	O
to	O
develop	O
Pokémon	B-Application
Red	I-Application
and	I-Application
Green	I-Application
.	O
</s>
<s>
The	O
SPARCstation	O
1+	O
(	O
Sun	O
4/65	O
)	O
pushed	O
the	O
CPU	B-General_Concept
to	O
a	O
25MHz	O
LSI	O
L64801	O
,	O
upgraded	O
the	O
coprocessor	B-General_Concept
to	O
a	O
Weitek	O
3172	O
and	O
installed	O
a	O
new	O
SCSI	B-Architecture
controller	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
IPC	I-Architecture
(	O
Sun	O
4/40	O
)	O
is	O
a	O
version	O
of	O
the	O
SPARCstation	O
1+	O
in	O
a	O
lunchbox	O
style	O
case	O
and	O
onboard	O
video	O
.	O
</s>
<s>
The	O
SPARCstation	B-Device
SLC	O
(	O
Sun	O
4/20	O
)	O
is	O
a	O
version	O
of	O
the	O
SPARCstation	B-Device
1+	O
built	O
into	O
a	O
monitor	O
cabinet	O
.	O
</s>
<s>
The	O
SPARCstation	B-Architecture
2	I-Architecture
(	O
Sun	O
4/75	O
)	O
is	O
the	O
machine	O
's	O
successor	O
and	O
was	O
released	O
in	O
November	O
1990	O
.	O
</s>
