<s>
Sun-3	B-Device
is	O
a	O
series	O
of	O
UNIX	B-Application
computer	B-Device
workstations	I-Device
and	O
servers	B-Application
produced	O
by	O
Sun	O
Microsystems	O
,	O
launched	O
on	O
September	O
9	O
,	O
1985	O
.	O
</s>
<s>
The	O
Sun-3	B-Device
series	O
are	O
VMEbus-based	O
systems	O
similar	O
to	O
some	O
of	O
the	O
earlier	O
Sun-2	B-Device
series	O
,	O
but	O
using	O
the	O
Motorola	B-Device
68020	I-Device
microprocessor	B-Architecture
,	O
in	O
combination	O
with	O
the	O
Motorola	B-General_Concept
68881	I-General_Concept
floating-point	B-Algorithm
co-processor	O
(	O
optional	O
on	O
the	O
Sun	O
3/50	O
)	O
and	O
a	O
proprietary	O
Sun	O
MMU	B-General_Concept
.	O
</s>
<s>
Sun-3	B-Device
systems	O
were	O
supported	O
in	O
SunOS	B-Operating_System
versions	O
3.0	O
to	O
4.1.1_U1	O
and	O
also	O
have	O
current	O
support	O
in	O
NetBSD	B-Device
and	O
Linux	B-Application
.	O
</s>
<s>
It	O
shipped	O
with	O
Sun-3	B-Device
systems	O
.	O
</s>
<s>
In	O
1989	O
,	O
coincident	O
with	O
the	O
launch	O
of	O
the	O
SPARCstation	B-Architecture
1	I-Architecture
,	O
Sun	O
launched	O
three	O
new	O
Sun-3	B-Device
models	O
,	O
the	O
3/80	O
,	O
3/470	O
and	O
3/480	O
.	O
</s>
<s>
Unlike	O
previous	O
Sun-3s	B-Device
,	O
these	O
use	O
a	O
Motorola	B-Device
68030	I-Device
processor	O
,	O
68882	B-General_Concept
floating-point	B-Algorithm
unit	O
,	O
and	O
the	O
68030	B-Device
's	O
integral	O
MMU	B-General_Concept
.	O
</s>
<s>
This	O
68030-based	O
architecture	O
is	O
called	O
Sun-3x	O
.	O
</s>
