<s>
This	O
is	O
a	O
list	O
of	O
computer	O
systems	O
based	O
on	O
the	O
Micro	B-Device
Channel	I-Device
architecture	I-Device
that	O
were	O
manufactured	O
by	O
IBM	O
.	O
</s>
<s>
Such	O
third-party	O
computers	O
were	O
also	O
referred	O
to	O
as	O
PS/2	B-Device
clones	I-Device
or	O
MCA	B-Device
clones	I-Device
.	O
</s>
<s>
The	O
first	O
third-party	O
Micro	B-Device
Channel	I-Device
–	O
based	O
computer	O
was	O
Tandy	O
Corporation	O
's	O
5000	O
MC	O
in	O
July	O
1988	O
.	O
</s>
<s>
Despite	O
expensive	O
research	O
and	O
development	O
costs	O
on	O
the	O
part	O
of	O
third-party	O
manufacturers	O
of	O
Micro	B-Device
Channel	I-Device
computers	O
—	O
in	O
part	O
due	O
to	O
the	O
expensive	O
licensing	O
fees	O
incurred	O
by	O
IBM	O
in	O
order	O
to	O
allow	O
legal	O
use	O
of	O
their	O
technology	O
—	O
by	O
1990	O
most	O
MCA	B-Device
clones	I-Device
were	O
not	O
fully	O
compatible	O
with	O
the	O
Micro	B-Device
Channel	I-Device
architecture	I-Device
or	O
expansion	O
cards	O
and	O
peripherals	O
based	O
on	O
Micro	B-Device
Channel	I-Device
.	O
</s>
<s>
By	O
the	O
time	O
IBM	O
was	O
winding	O
down	O
the	O
PS/2	B-Device
line	O
of	O
personal	O
computers	O
(	O
which	O
in	O
1987	O
acted	O
as	O
the	O
means	O
of	O
introducing	O
Micro	B-Device
Channel	I-Device
to	O
the	O
general	O
public	O
)	O
in	O
1992	O
,	O
NCR	O
Corporation	O
remained	O
one	O
of	O
the	O
few	O
committed	O
vendors	O
of	O
MCA	B-Device
clones	I-Device
.	O
</s>
