<s>
The	O
Sharp	B-Device
PC-7000	I-Device
is	O
a	O
luggable	B-Device
portable	I-Device
computer	I-Device
released	O
by	O
Sharp	O
Electronics	O
in	O
1985	O
.	O
</s>
<s>
The	O
PC-7000	B-Device
was	O
Sharp	O
's	O
second	O
entry	O
into	O
the	O
IBM	O
PC-compatible	O
portable	B-Device
computer	I-Device
market	O
,	O
their	O
first	O
being	O
the	O
PC-5000	B-Device
.	O
</s>
<s>
The	O
PC-7000	B-Device
eschewed	O
the	O
PC-5000	B-Device
'	O
s	O
clamshell	O
design	O
,	O
battery	O
operation	O
,	O
and	O
lighter	O
weight	O
—	O
for	O
the	O
PC-7000	B-Device
versus	O
the	O
PC-5000	B-Device
'	O
s	O
.	O
</s>
<s>
The	O
compromise	O
was	O
an	O
LCD	O
display	O
with	O
electroluminescent	O
backlighting	O
,	O
as	O
well	O
as	O
an	O
increased	O
display	O
line	O
count	O
—	O
25	O
for	O
the	O
PC-7000	B-Device
versus	O
the	O
PC-5000	B-Device
'	O
s	O
eight	O
.	O
</s>
<s>
Sharp	O
also	O
replaced	O
the	O
predecessor	O
's	O
Intel	B-Device
8088	I-Device
processor	O
with	O
an	O
8086	B-General_Concept
running	O
at	O
a	O
user-switchable	O
7.37	O
MHz	O
and	O
bumped	O
the	O
stock	O
memory	O
from	O
128	O
to	O
320	O
KB	O
.	O
</s>
<s>
Sharp	O
released	O
the	O
PC-7000	B-Device
in	O
October	O
1985	O
to	O
high	O
praise	O
.	O
</s>
<s>
It	O
spawned	O
a	O
series	O
of	O
luggable	B-Device
computers	I-Device
featuring	O
improvements	O
to	O
the	O
original	O
PC-7000	B-Device
'	O
s	O
hardware	O
.	O
</s>
<s>
The	O
Sharp	B-Device
PC-7000	I-Device
'	O
s	O
case	O
sports	O
the	O
luggable	B-Device
form	O
factor	O
for	O
portable	B-Device
computers	I-Device
;	O
journalists	O
compared	O
it	O
to	O
a	O
portable	O
radio	O
,	O
a	O
toaster	O
,	O
and	O
a	O
lunchbox	O
.	O
</s>
<s>
The	O
PC-7000	B-Device
'	O
s	O
dimensions	O
,	O
when	O
closed	O
,	O
were	O
compliant	O
with	O
the	O
contemporaneously	O
revised	O
restrictions	O
on	O
carry-on	O
luggage	O
set	O
by	O
the	O
Federal	O
Aviation	O
Administration	O
.	O
</s>
<s>
On	O
the	O
right	O
side	O
of	O
the	O
Sharp	B-Device
PC-7000	I-Device
are	O
two	O
half-height	O
,	O
5.25-inch	O
floppy	O
disk	O
drives	O
,	O
mounted	O
vertically	O
and	O
with	O
shock	O
absorption	O
.	O
</s>
<s>
The	O
PC-7000	B-Device
uses	O
an	O
Intel	B-General_Concept
8086	I-General_Concept
processor	O
,	O
by	O
default	O
running	O
at	O
clock	O
speed	O
of	O
7.37	O
MHz	O
,	O
switchable	O
to	O
the	O
IBM	O
PC	O
standard	O
4.77	O
MHz	O
.	O
</s>
<s>
A	O
stock	O
PC-7000	B-Device
comes	O
with	O
384	O
KB	O
of	O
RAM	B-Architecture
,	O
only	O
320	O
KB	O
of	O
which	O
is	O
available	O
to	O
the	O
user	O
.	O
</s>
<s>
Sharp	O
offered	O
through	O
mail	O
order	O
a	O
memory	O
expansion	O
card	O
which	O
increases	O
the	O
RAM	B-Architecture
to	O
704	O
KB	O
available	O
to	O
the	O
user	O
.	O
</s>
<s>
A	O
socket	O
for	O
a	O
8087	B-Device
coprocessor	O
is	O
included	O
on	O
the	O
mainboard	O
.	O
</s>
<s>
The	O
PC-7000	B-Device
'	O
s	O
display	O
measures	O
diagonally	O
with	O
an	O
aspect	B-Device
ratio	I-Device
of	O
2.1:1	O
.	O
</s>
<s>
Its	O
display	O
resolution	O
is	O
640	O
by	O
200	O
pixels	O
,	O
making	O
it	O
compatible	O
with	O
up	O
to	O
the	O
CGA	B-Device
standard	O
only	O
.	O
</s>
<s>
The	O
portable	B-Device
computer	I-Device
was	O
one	O
of	O
the	O
first	O
to	O
adopt	O
electroluminescent	O
backlighting	O
,	O
at	O
a	O
time	O
when	O
most	O
other	O
LCD	O
screens	O
on	O
portable	B-Device
computer	I-Device
monitors	O
relied	O
on	O
large	O
amounts	O
of	O
ambient	O
lighting	O
for	O
visibility	O
.	O
</s>
<s>
To	O
further	O
increase	O
this	O
visibility	O
among	O
its	O
competitors	O
,	O
the	O
PC-7000	B-Device
'	O
s	O
display	O
can	O
be	O
tilted	O
at	O
angles	O
of	O
5	O
,	O
10	O
,	O
and	O
15	O
degrees	O
,	O
to	O
accommodate	O
for	O
the	O
user	O
's	O
display	O
contrast	O
preference	O
.	O
</s>
<s>
Along	O
with	O
the	O
aforementioned	O
8087	B-Device
coprocessor	O
and	O
RAM	B-Architecture
expansion	O
options	O
,	O
users	O
could	O
also	O
have	O
ordered	O
a	O
proprietary	O
video	O
card	O
allowing	O
them	O
to	O
hook	O
up	O
an	O
external	O
monitor	O
with	O
RGBA	O
input	O
to	O
the	O
computer	O
.	O
</s>
<s>
A	O
Hayes-compatible	O
internal	O
modem	O
operating	O
at	O
300/1200	O
bps	O
was	O
another	O
option	O
,	O
as	O
was	O
an	O
expansion	O
unit	O
that	O
provided	O
a	O
10	O
MB	O
hard	O
drive	O
and	O
three	O
ISA	B-Architecture
expansion	O
slots	O
.	O
</s>
<s>
Designing	O
the	O
PC-7000	B-Device
was	O
a	O
joint	O
effort	O
from	O
Sharp	O
Electronics	O
and	O
Vadem	O
,	O
an	O
original	O
design	O
manufacturer	O
based	O
in	O
San	O
Jose	O
.	O
</s>
<s>
Sharp	O
released	O
the	O
PC-7000	B-Device
in	O
October	O
1985	O
.	O
</s>
<s>
The	O
company	O
had	O
previously	O
revealed	O
the	O
PC-7000	B-Device
in	O
July	O
that	O
year	O
,	O
at	O
a	O
trade	O
show	O
hosted	O
by	O
the	O
National	O
Office	O
Machine	O
Dealers	O
Association	O
,	O
in	O
Las	O
Vegas	O
.	O
</s>
<s>
The	O
PC-7000	B-Device
initially	O
competed	O
with	O
heavier	O
luggable	B-Device
portable	B-Device
computers	I-Device
such	O
as	O
Compaq	O
's	O
Portable	B-Device
286	I-Device
and	O
Panasonic	O
's	O
Executive	B-Device
Partner	I-Device
—	O
the	O
latter	O
two	O
weighing	O
almost	O
.	O
</s>
<s>
It	O
later	O
competed	O
with	O
IBM	O
's	O
first	O
laptop	O
computer	O
,	O
the	O
PC	B-Device
Convertible	I-Device
;	O
Compaq	O
's	O
slimmed-down	O
version	O
of	O
the	O
Portable	B-Device
286	I-Device
,	O
the	O
Portable	B-Device
II	I-Device
;	O
and	O
Toshiba	O
's	O
first	O
IBM	O
PC-compatible	O
laptop	O
computer	O
,	O
the	O
T1100	B-Device
,	O
among	O
other	O
portable	B-Device
computers	I-Device
.	O
</s>
<s>
The	O
PC-7000	B-Device
received	O
high	O
praise	O
on	O
release	O
,	O
with	O
Sharp	O
selling	O
hundreds	O
of	O
thousands	O
of	O
units	O
—	O
this	O
figure	O
including	O
sales	O
of	O
later	O
models	O
—	O
globally	O
over	O
the	O
years	O
.	O
</s>
<s>
George	O
Brett	O
,	O
a	O
journalist	O
for	O
the	O
Toronto	O
Star	O
,	O
preferred	O
the	O
Sharp	B-Device
PC-7000	I-Device
over	O
IBM	O
's	O
PC	B-Device
Convertible	I-Device
for	O
retaining	O
the	O
then-widespread	O
5.25-inch	O
floppy	O
disk	O
drives	O
,	O
costing	O
less	O
in	O
its	O
stock	O
configuration	O
while	O
also	O
having	O
more	O
memory	O
,	O
and	O
backlighting	O
the	O
display	O
.	O
</s>
<s>
Michael	O
Heck	O
,	O
a	O
freelance	O
writer	O
for	O
Pico	O
's	O
Journal	O
of	O
Briefcase	O
Computing	O
found	O
the	O
PC-7000	B-Device
'	O
s	O
size	O
unobtrusive	O
and	O
its	O
19-pound	O
weight	O
fair	O
for	O
its	O
capabilities	O
over	O
other	O
portable	B-Device
computers	I-Device
.	O
</s>
<s>
Phil	O
Casella	O
,	O
a	O
software	O
developer	O
and	O
an	O
InfoWorld	O
writer	O
,	O
called	O
the	O
PC-7000	B-Device
well-performing	O
,	O
easy	O
to	O
use	O
,	O
to	O
set	O
up	O
,	O
and	O
to	O
service	O
,	O
and	O
rated	O
it	O
a	O
good	O
value	O
.	O
</s>
<s>
Fellow	O
PC	O
Magazine	O
writer	O
Bill	O
Machrone	O
felt	O
that	O
the	O
physical	O
dimensions	O
of	O
the	O
PC-7000	B-Device
sat	O
awkwardly	O
between	O
IBM	O
's	O
lightweight	O
PC	B-Device
Convertible	I-Device
and	O
Compaq	O
's	O
heavy	O
but	O
full-featured	O
Portable	B-Device
II	I-Device
.	O
</s>
<s>
From	O
its	O
introduction	O
in	O
1985	O
,	O
the	O
PC-7000	B-Device
'	O
s	O
praise	O
and	O
steady	O
sales	O
encouraged	O
the	O
increased	O
use	O
of	O
LCDs	O
in	O
portable	B-Device
computers	I-Device
.	O
</s>
<s>
The	O
original	O
PC-7000	B-Device
gave	O
way	O
to	O
subsequent	O
models	O
—	O
the	O
PC-7000A	O
,	O
the	O
PC-7100	O
,	O
the	O
PC-7201	O
,	O
the	O
PC-7221	O
,	O
and	O
the	O
PC-7241	O
—	O
all	O
of	O
which	O
retain	O
the	O
luggable	B-Device
form	O
factor	O
.	O
</s>
<s>
This	O
series	O
of	O
portable	B-Device
computers	I-Device
was	O
discontinued	O
in	O
around	O
1990	O
.	O
</s>
<s>
An	O
original	O
PC-7000	B-Device
is	O
housed	O
in	O
the	O
Rhode	O
Island	O
Computer	O
Museum	O
.	O
</s>
