<s>
The	O
Terak	B-Device
8510/a	I-Device
was	O
a	O
graphical	O
desktop	O
workstation	B-Device
developed	O
by	O
the	O
Terak	O
Corporation	O
in	O
1977	O
.	O
</s>
<s>
It	O
was	O
a	O
desktop	O
workstation	B-Device
with	O
an	O
LSI-11	O
compatible	O
processor	O
,	O
a	O
graphical	O
framebuffer	B-Algorithm
,	O
and	O
a	O
text	B-Application
mode	I-Application
with	O
downloadable	O
fonts	O
.	O
</s>
<s>
Despite	O
the	O
lack	O
of	O
an	O
MMU	B-General_Concept
,	O
it	O
was	O
capable	O
of	O
running	O
a	O
stripped	O
version	O
of	O
UNIX	B-Application
version	O
6	O
.	O
</s>
<s>
It	O
was	O
the	O
first	O
personal	O
machine	O
on	O
which	O
the	O
UCSD	B-Language
p-System	I-Language
was	O
widely	O
used	O
.	O
</s>
<s>
Various	O
universities	O
in	O
the	O
USA	O
used	O
it	O
in	O
the	O
late	O
1970s	O
through	O
mid-1980s	O
to	O
teach	O
Pascal	B-Application
programming	O
.	O
</s>
<s>
Besides	O
the	O
original	O
frame-buffer-centric	O
8510/a	O
,	O
other	O
products	O
were	O
developed	O
:	O
color	O
graphics	O
and	O
a	O
Unix	B-Device
workstation	I-Device
.	O
</s>
