<s>
The	O
Olivetti	B-Device
M28	I-Device
personal	B-Device
computer	I-Device
,	O
introduced	O
in	O
1986	O
,	O
was	O
the	O
successor	O
to	O
the	O
Olivetti	B-Operating_System
M24	I-Operating_System
.	O
</s>
<s>
It	O
had	O
an	O
Intel	B-General_Concept
80286	I-General_Concept
CPU	O
running	O
at	O
8MHz	O
and	O
512	O
KB	O
(	O
expandable	O
to	O
1024	O
KB	O
on	O
the	O
motherboard	B-Device
)	O
of	O
RAM	O
,	O
featuring	O
a	O
5.25	B-Device
"	I-Device
floppy	B-Device
drive	I-Device
and	O
a	O
20	O
MB	O
hard	B-Device
drive	I-Device
.	O
</s>
<s>
The	O
operating	O
systems	O
were	O
MS-DOS	B-Application
3.2	O
and	O
XENIX	B-Application
.	O
</s>
<s>
It	O
was	O
possible	O
to	O
install	O
a	O
70	O
MB	O
hard	B-Device
drive	I-Device
,	O
a	O
80287	O
math	B-General_Concept
co-processor	I-General_Concept
and	O
a	O
enhanced	O
CGA	B-Device
compatible	O
graphic	O
card	O
capable	O
of	O
displaying	O
640x400	O
pixels	O
with	O
16	O
colors	O
.	O
</s>
<s>
The	O
Olivetti	B-Device
M28	I-Device
was	O
rebranded	O
as	O
the	O
AT&T	B-Device
PC	I-Device
6310	I-Device
by	O
AT&T	O
in	O
1987	O
and	O
sold	O
on	O
the	O
US	O
market	O
.	O
</s>
<s>
It	O
was	O
available	O
in	O
France	O
as	O
the	O
Persona	B-Device
1800	I-Device
,	O
sold	O
by	O
LogAbax	O
.	O
</s>
