<s>
The	O
Zenith	B-Device
MinisPort	I-Device
(	O
styled	O
as	O
minisPORT	B-Device
)	O
is	O
a	O
subnotebook	B-Device
based	O
on	O
an	O
80C88	O
CMOS	O
CPU	B-Device
running	O
at	O
two	O
software	O
selectable	O
speeds	O
:	O
4.77MHz	O
or	O
8MHz	O
.	O
</s>
<s>
It	O
had	O
1	O
(	O
model	O
ZL-1	B-Device
)	O
or	O
2MB	O
(	O
model	O
ZL-2	B-Device
)	O
of	O
RAM	O
,	O
ran	O
MS-DOS	B-Application
3.3	O
Plus	O
from	O
ROM	B-Device
,	O
had	O
a	O
640×200	O
LCD	B-Device
display	I-Device
and	O
CGA	B-Device
and	O
composite	O
monochrome	O
outputs	O
.	O
</s>
<s>
The	O
MinisPort	B-Device
was	O
one	O
of	O
the	O
first	O
actual	O
subnotebooks	B-Device
,	O
apart	O
from	O
a	O
contemporary	O
NEC	O
model	O
.	O
</s>
<s>
Internal	O
2-inch	O
"	O
LT	O
"	O
floppy	B-Device
disk	I-Device
drive	I-Device
(	O
793KB	O
formatted	O
,	O
double-sided	O
,	O
double-density	O
,	O
80tracks	O
,	O
245tpi	O
,	O
media	O
:	O
Fujifilm	O
LT-1	O
)	O
.	O
</s>
<s>
The	O
floppy	B-Device
disks	I-Device
typically	O
cost	O
$80	O
for	O
ten	O
of	O
them	O
.	O
</s>
<s>
The	O
disks	O
were	O
not	O
compatible	O
with	O
two-inch	O
"	O
VF	O
"	O
video	O
floppy	B-Device
diskettes	I-Device
.	O
</s>
<s>
An	O
external	O
standard	O
3.5-inch	O
720KB	O
double-density	O
floppy	B-Device
drive	I-Device
was	O
available	O
as	O
well	O
.	O
</s>
<s>
This	O
to	O
some	O
extent	O
compensated	O
for	O
the	O
fact	O
that	O
no	O
other	O
computer	O
ever	O
used	O
the	O
2-inch	O
floppy	B-Device
disks	I-Device
,	O
thus	O
rendering	O
floppy	B-Device
transfers	O
impractical	O
.	O
</s>
<s>
The	O
ability	O
to	O
set	O
aside	O
some	O
of	O
its	O
upper	O
memory	O
(	O
typically	O
the	O
384KB	O
area	O
between	O
640KB	O
and	O
1MB	O
)	O
as	O
a	O
battery-backed	O
RAM	B-Application
disk	I-Application
;	O
this	O
was	O
relatively	O
unique	O
in	O
DOS-based	O
laptops	O
(	O
others	O
,	O
like	O
the	O
Toshiba	B-Device
T1000	I-Device
also	O
supported	O
RAM	B-Application
disks	I-Application
)	O
.	O
</s>
<s>
The	O
RAM	B-Application
disk	I-Application
appeared	O
as	O
C	O
:	O
in	O
DOS	O
and	O
enabled	O
the	O
computer	O
to	O
run	O
with	O
no	O
spinning	O
disks	O
,	O
extending	O
battery	O
life	O
and	O
increasing	O
reliability	O
.	O
</s>
<s>
Later	O
versions	O
included	O
an	O
integral	O
20MB	O
hard	B-Device
disk	I-Device
.	O
</s>
<s>
This	O
was	O
enough	O
to	O
run	O
WordPerfect	B-Application
and	O
associated	O
programs	O
,	O
including	O
spell-checkers	O
and	O
diagnostic	O
programs	O
.	O
</s>
<s>
The	O
MinisPort	B-Device
is	O
12.5-inch	O
wide	O
×	O
9.8-inch	O
deep	O
×	O
1.29-inch	O
tall	O
(	O
318mm	O
×	O
249mm	O
×	O
33mm	O
)	O
,	O
(	O
lid	O
closed	O
)	O
,	O
7.75-inch	O
(	O
197mm	O
)	O
tall	O
(	O
lid	O
open	O
)	O
.	O
</s>
