<s>
The	O
ABC	B-Operating_System
1600	I-Operating_System
was	O
a	O
personal	B-Device
computer	I-Device
from	O
Luxor	O
that	O
was	O
introduced	O
in	O
1985	O
.	O
</s>
<s>
It	O
was	O
built	O
around	O
the	O
Motorola	B-Device
68008	I-Device
processor	B-Architecture
,	O
had	O
of	O
memory	O
and	O
used	O
the	O
operating	O
system	O
ABCenix	O
,	O
a	O
Unix-like	O
system	O
developed	O
from	O
DNIX	B-Operating_System
.	O
</s>
<s>
The	O
ABC	B-Operating_System
1600	I-Operating_System
used	O
monochrome	O
graphics	O
with	O
a	O
display	B-General_Concept
resolution	I-General_Concept
of	O
and	O
the	O
screen	O
could	O
be	O
turned	O
90°	O
while	O
in	O
use	O
depending	O
on	O
whether	O
the	O
user	O
desired	O
to	O
work	O
in	O
standing	O
(	O
portrait	O
)	O
or	O
horizontal	O
(	O
landscape	O
)	O
format	O
.	O
</s>
