<s>
The	O
Ultra	B-Architecture
Port	I-Architecture
Architecture	I-Architecture
(	O
UPA	O
)	O
bus	O
was	O
developed	O
by	O
Sun	O
Microsystems	O
as	O
a	O
high-speed	O
graphics	O
card	O
to	O
CPU	O
interconnect	O
,	O
beginning	O
with	O
the	O
Ultra	B-Architecture
1	I-Architecture
workstation	O
in	O
1995	O
.	O
</s>
