<s>
It	O
was	O
compatible	O
in	O
software	O
and	O
hardware	O
with	O
the	O
British	O
Sinclair	O
ZX81	O
,	O
although	O
it	O
was	O
a	O
less	O
literal	O
copy	O
than	O
the	O
competing	O
machines	O
(	O
TK82C	B-Device
and	O
TK83	O
)	O
,	O
produced	O
by	O
Microdigital	O
.	O
</s>
