<s>
The	O
Motorola	B-Device
68000	I-Device
Educational	I-Device
Computer	I-Device
Board	I-Device
(	O
MEX68KECB	O
)	O
was	O
a	O
development	O
board	O
for	O
the	O
Motorola	B-Device
68000	I-Device
microprocessor	I-Device
,	O
introduced	O
by	O
Motorola	O
in	O
1981	O
.	O
</s>
<s>
The	O
software	O
was	O
operated	O
using	O
command-line	B-Application
interface	I-Application
over	O
a	O
serial	O
link	O
,	O
and	O
provided	O
many	O
commands	O
useful	O
in	O
machine	O
code	O
debugging	O
.	O
</s>
