<s>
The	O
MZ-2500	B-Device
,	O
also	O
known	O
as	O
the	O
Super	O
MZ	O
,	O
is	O
an	O
8-bit	O
personal	B-Device
computer	I-Device
released	O
on	O
1	O
October	O
1985	O
as	O
part	O
of	O
the	O
Sharp	B-Operating_System
MZ	I-Operating_System
series	O
.	O
</s>
<s>
It	O
is	O
also	O
the	O
final	O
model	O
of	O
the	O
entire	O
8-bit	O
MZ	O
series	O
with	O
its	O
own	O
architecture	B-General_Concept
.	O
</s>
<s>
It	O
’s	O
successor	O
was	O
the	O
Sharp	O
MZ-2861	O
which	O
has	O
a	O
compatible	O
mode	O
and	O
a	O
newly	O
developed	O
16-bit	B-Device
mode	O
.	O
</s>
<s>
As	O
with	O
the	O
standard	O
MZ	O
model	O
,	O
the	O
main	O
unit	O
does	O
not	O
have	O
the	O
system	O
program	O
on	O
onboard	O
ROM	B-Device
.	O
</s>
<s>
However	O
,	O
while	O
the	O
old	O
model	O
included	O
only	O
the	O
IPL	O
,	O
a	O
program	O
for	O
controlling	O
advanced	O
hardware	O
is	O
included	O
as	O
an	O
IOCS	B-Application
,	O
and	O
a	O
number	O
of	O
repairs	O
have	O
been	O
made	O
.	O
</s>
<s>
One	O
of	O
the	O
functions	O
is	O
one	O
that	O
can	O
call	O
a	O
specific	O
location	O
,	O
so	O
an	O
incompatible	O
element	O
is	O
specified	O
for	O
an	O
application	O
that	O
addresses	O
the	O
module	O
in	O
the	O
ROM	B-Device
and	O
calls	O
it	O
directly	O
without	O
calling	O
the	O
function	O
as	O
a	O
reference	O
.	O
</s>
<s>
The	O
MZ-2500	B-Device
is	O
equipped	O
with	O
the	O
Z80A	B-General_Concept
and	O
operates	O
at	O
4MHz	O
,	O
but	O
the	O
MZ-2500	B-Device
is	O
equipped	O
with	O
the	O
Z80B	B-General_Concept
,	O
and	O
except	O
for	O
some	O
,	O
it	O
has	O
6MHz	O
operation	O
with	O
one	O
wait	O
during	O
M1	O
cycle	O
.	O
</s>
<s>
While	O
the	O
old	O
model	O
only	O
allowed	O
you	O
to	O
assign	O
a	O
specific	O
address	O
to	O
another	O
space	O
by	O
bank	B-General_Concept
switching	I-General_Concept
in	O
order	O
to	O
open	O
a	O
window	O
with	O
text	O
and	O
graphics	O
VRAM	O
,	O
the	O
MZ-2500	B-Device
is	O
equipped	O
with	O
a	O
memory	B-General_Concept
controller	I-General_Concept
like	O
the	O
MB-S1	O
etc	O
.	O
</s>
<s>
In	O
the	O
standard	O
model	O
,	O
the	O
display	O
peripheral	O
which	O
was	O
a	O
specification	O
that	O
the	O
CPU	B-Device
directly	O
writes	O
to	O
VRAM	O
mapped	O
to	O
the	O
memory	O
space	O
for	O
each	O
plane	O
without	O
having	O
one	O
ALU	O
has	O
been	O
greatly	O
strengthened	O
in	O
the	O
same	O
machine	O
.	O
</s>
<s>
Like	O
Sharp	O
's	O
PC-9800	B-Operating_System
series	I-Operating_System
and	O
X1turbo	B-Device
,	O
it	O
is	O
equipped	O
with	O
Kanji	O
text	O
VRAM	O
.	O
</s>
<s>
Processing	O
is	O
much	O
lighter	O
than	O
transferring	O
a	O
font	O
image	O
as	O
a	O
graphic	O
from	O
a	O
kanji	O
ROM	B-Device
,	O
and	O
even	O
though	O
it	O
is	O
an	O
8-bit	O
machine	O
,	O
it	O
has	O
achieved	O
a	O
more	O
comfortable	O
handling	O
of	O
Japanese	O
than	O
models	O
of	O
the	O
same	O
price	O
range	O
.	O
</s>
<s>
The	O
MZ-2500	B-Device
included	O
a	O
serial	O
port	O
and	O
dedicated	O
modem	O
phone	O
socket	O
for	O
"	O
personal	B-Device
computer	I-Device
communication	O
"	O
i.e.	O
</s>
<s>
to	O
connect	O
to	O
data	O
services	O
online	O
such	O
as	O
BBSes	B-Application
.	O
</s>
<s>
In	O
MZ-2000	O
/	O
2200	O
,	O
there	O
was	O
a	O
part	O
incompatible	O
with	O
MZ-80B	O
,	O
but	O
in	O
MZ-2500	B-Device
,	O
it	O
became	O
possible	O
to	O
use	O
all	O
the	O
assets	O
of	O
the	O
old	O
model	O
of	O
the	O
series	O
by	O
preparing	O
MZ-80B	O
mode	O
.	O
</s>
<s>
In	O
addition	O
,	O
there	O
is	O
a	O
mode	O
to	O
operate	O
80	O
B	O
mode	O
and	O
2000	O
mode	O
at	O
6MHz	O
as	O
a	O
hidden	O
function	O
,	O
but	O
the	O
reproduction	O
of	O
sound	O
to	O
which	O
CPU	B-Device
speed	O
directly	O
acts	O
and	O
the	O
handling	O
of	O
data	O
recorder	O
are	O
incompatible	O
.	O
</s>
<s>
The	O
same	O
peripheral	O
devices	O
as	O
the	O
previous	O
model	O
can	O
continue	O
to	O
be	O
used	O
,	O
but	O
the	O
16-bit	B-Device
board	O
can	O
not	O
be	O
used	O
because	O
of	O
the	O
difference	O
in	O
physical	O
shape	O
and	O
design	O
.	O
</s>
<s>
The	O
joystick	B-Device
is	O
compatible	O
with	O
the	O
ATARI	B-General_Concept
specification	O
,	O
and	O
the	O
mouse	O
is	O
MZ-5500	O
or	O
X	O
series	O
.	O
</s>
<s>
MZ-2531	O
A	O
model	O
that	O
added	O
an	O
optional	O
dictionary	O
ROM	B-Device
and	O
additional	O
main	O
memory	O
to	O
the	O
MZ-2521	O
and	O
added	O
a	O
TV	O
control	O
.	O
</s>
<s>
ROM	B-Device
:	O
</s>
<s>
Dictionary	O
ROM	B-Device
256KB	O
(	O
option	O
)	O
-Built-in	O
dictionary	O
for	O
kana-kanji	O
conversion	O
similar	O
to	O
that	O
of	O
the	O
dedicated	O
word	O
processor	O
.	O
</s>
<s>
Although	O
BEEP	O
also	O
exists	O
,	O
the	O
combination	O
is	O
difficult	O
because	O
it	O
needs	O
to	O
be	O
directly	O
controlled	O
by	O
Z80	B-General_Concept
.	O
</s>
<s>
Joystick	B-Device
:	O
ATARI	B-General_Concept
9-pin	O
D-Sub	O
x	O
2	O
port	O
.	O
</s>
<s>
Keyboard	O
:	O
Proprietary	O
specification	O
8-pin	O
mini	O
DIN	B-Architecture
connector	I-Architecture
x	O
2	O
ports	O
(	O
exclusive	O
connection	O
of	O
the	O
lower	O
right	O
part	O
of	O
the	O
front	O
panel	O
and	O
the	O
front	O
right	O
side	O
)	O
.	O
</s>
<s>
Mouse	O
:	O
SHARP	O
specification	O
5-pin	O
mini	O
DIN	B-Architecture
connector	I-Architecture
x	O
2	O
ports	O
(	O
exclusive	O
connection	O
of	O
the	O
lower	O
right	O
part	O
of	O
the	O
front	O
panel	O
and	O
the	O
front	O
right	O
side	O
)	O
.	O
</s>
<s>
Display	O
output	O
terminal	O
CRT	O
:	O
Color	O
(	O
analog	O
/	O
digital	O
switching	O
)	O
8-pin	O
DIN	B-Architecture
connector	I-Architecture
x	O
1	O
port	O
,	O
monochrome	O
(	O
analog	O
/	O
digital	O
switching	O
)	O
5	O
pin	O
DIN	B-Architecture
connector	I-Architecture
x	O
1	O
port	O
.	O
</s>
<s>
Display	O
TV	O
control	O
terminal	O
:	O
SHARP	O
standard	O
8-pin	O
DIN	B-Architecture
x	O
1	O
port	O
.	O
</s>
<s>
8	O
pin	O
mini	O
DIN	B-Architecture
x	O
1	O
port	O
.	O
</s>
<s>
The	O
MZ-2521	O
(	O
early	O
model	O
)	O
incorporates	O
an	O
additional	O
VRAM	O
,	O
a	O
dictionary	O
ROM	B-Device
,	O
and	O
a	O
television	O
control	O
circuit	O
.	O
</s>
<s>
The	O
television	O
control	O
circuitry	O
is	O
located	O
at	O
the	O
location	O
of	O
the	O
dictionary	O
ROM	B-Device
,	O
and	O
the	O
board	O
layout	O
has	O
been	O
slightly	O
modified	O
.	O
</s>
<s>
As	O
for	O
the	O
appearance	O
,	O
three	O
lines	O
were	O
drawn	O
at	O
the	O
position	O
of	O
the	O
FDD	O
on	O
the	O
front	O
panel	O
,	O
and	O
the	O
color	O
of	O
the	O
eject	O
button	O
was	O
darkened	O
,	O
and	O
the	O
printing	O
described	O
as	O
MZ-2500	B-Device
on	O
the	O
top	O
plate	O
disappeared	O
.	O
</s>
<s>
/	O
Key	O
:	O
Loads	O
and	O
executes	O
a	O
program	O
from	O
the	O
ROM	B-Device
located	O
in	O
the	O
I	O
/	O
O	O
space	O
.	O
</s>
<s>
C	O
key	O
:	O
Forced	O
activation	O
from	O
cassette	O
deck	O
(	O
even	O
in	O
MZ-2500	B-Device
mode	O
)	O
.	O
</s>
<s>
X	O
key	O
:	O
MZ-80B	O
mode	O
(	O
Mode	O
switch	O
is	O
at	O
MZ-2500	B-Device
position	O
)	O
.	O
</s>
<s>
Z	O
key	O
:	O
MZ-2000	O
mode	O
(	O
Mode	O
switch	O
is	O
at	O
MZ-2500	B-Device
position	O
)	O
.	O
</s>
<s>
However	O
unlike	O
typical	O
video	B-Device
game	I-Device
system	I-Device
releases	O
there	O
were	O
no	O
major	O
software	O
releases	O
available	O
at	O
launch	O
for	O
the	O
MZ-2500	B-Device
at	O
the	O
time	O
.	O
</s>
<s>
Although	O
the	O
MZ-2500	B-Device
'	O
s	O
high	O
portability	O
by	O
memory	O
mapping	O
design	O
encouraged	O
porting	O
from	O
other	O
models	O
,	O
there	O
were	O
few	O
products	O
that	O
made	O
use	O
of	O
its	O
unique	O
functions	O
and	O
performance	O
.	O
</s>
<s>
The	O
MZ	O
series	O
had	O
the	O
habit	O
of	O
building	O
for	O
a	O
heavy	O
user	O
base	O
for	O
many	O
years	O
,	O
many	O
of	O
which	O
were	O
homebrew	B-Application
software	I-Application
programs	I-Application
because	O
no	O
commercial	B-Application
software	I-Application
was	O
readily	O
available	O
for	O
the	O
platform	O
.	O
</s>
<s>
Although	O
there	O
were	O
many	O
commercial	B-Application
software	I-Application
programs	O
available	O
on	O
other	O
system	O
platforms	O
,	O
and	O
despite	O
the	O
MZ-2500	B-Device
had	O
gained	O
a	O
large	O
share	O
in	O
the	O
market	O
,	O
it	O
did	O
not	O
change	O
the	O
situation	O
for	O
the	O
MZ-2500	B-Device
series	O
,	O
and	O
commercial	B-Application
software	I-Application
releases	O
for	O
the	O
system	O
eventually	O
fell	O
.	O
</s>
<s>
Although	O
not	O
as	O
special	O
as	O
X-BASIC	B-Language
,	O
it	O
is	O
possible	O
to	O
use	O
labels	O
including	O
Kanji	O
,	O
as	O
well	O
as	O
line	O
numbers	O
,	O
in	O
addition	O
to	O
input	O
in	O
abbreviations	O
derived	O
from	O
Hu-BASIC	O
.	O
</s>
<s>
Although	O
there	O
are	O
various	O
factors	O
such	O
as	O
the	O
degree	O
of	O
optimization	O
of	O
the	O
comparison	O
object	O
,	O
in	O
the	O
benchmark	O
in	O
BASIC	O
,	O
it	O
can	O
be	O
said	O
that	O
the	O
interpreter	O
's	O
own	O
speed	O
was	O
high	O
as	O
at	O
that	O
time	O
,	O
such	O
as	O
thinning	O
to	O
PC-9800	B-Operating_System
series	I-Operating_System
using	O
8086	O
of	O
8MHz	O
.	O
</s>
<s>
The	O
common	O
system	O
of	O
Z80	B-General_Concept
published	O
in	O
Oh	O
!	O
</s>
<s>
On	O
many	O
Z80	B-General_Concept
models	O
,	O
the	O
same	O
binary	O
ran	O
the	O
same	O
application	O
for	O
the	O
same	O
system	O
.	O
</s>
<s>
The	O
MZ-2500	B-Device
supports	O
kanji	O
conversion	O
,	O
kanji	O
output	O
,	O
high-resolution	O
display	O
font	O
,	O
etc	O
.	O
</s>
<s>
Designed	O
specifically	O
for	O
the	O
same	O
model	O
,	O
it	O
is	O
possible	O
to	O
call	O
the	O
IOCS	B-Application
,	O
and	O
it	O
is	O
basically	O
possible	O
to	O
start	O
up	O
a	O
standalone	O
binary	O
.	O
</s>
<s>
The	O
command	O
shell	O
has	O
been	O
adopted	O
for	O
the	O
UNIX-like	O
flow	O
.	O
</s>
<s>
Although	O
the	O
game	O
did	O
not	O
come	O
up	O
as	O
a	O
game	O
,	O
the	O
MZ-2500	B-Device
version	O
uses	O
the	O
audio	O
track	O
of	O
the	O
data	O
recorder	O
and	O
the	O
head	O
extension	O
function	O
to	O
play	O
back	O
narration	O
and	O
audio	O
at	O
the	O
title	O
and	O
event	O
.	O
</s>
<s>
A	O
port	O
of	O
the	O
MZ-700	B-Operating_System
game	O
to	O
"	O
Argo	O
function	O
"	O
.	O
</s>
<s>
There	O
were	O
also	O
free	O
porting	O
of	O
commercial	B-Application
software	I-Application
by	O
volunteers	O
and	O
activities	O
such	O
as	O
disk	O
magazines	O
.	O
</s>
<s>
The	O
joystick	B-Device
port	O
is	O
Atari	B-General_Concept
's	O
specifications	O
,	O
and	O
the	O
mouse	O
has	O
an	O
interface	B-Application
compatible	O
with	O
X1	B-Device
and	O
X68000	O
,	O
so	O
hardware	O
with	O
these	O
specifications	O
can	O
also	O
be	O
used	O
.	O
</s>
<s>
Expansion	O
is	O
possible	O
by	O
connecting	O
to	O
the	O
back	O
interface	B-Application
.	O
</s>
<s>
Although	O
it	O
is	O
hardware	O
for	O
MZ-2861	O
,	O
since	O
it	O
is	O
an	O
interface	B-Application
board	O
on	O
the	O
8	O
bit	O
side	O
,	O
it	O
can	O
also	O
be	O
used	O
with	O
MZ-2500	B-Device
.	O
</s>
<s>
34	O
types	O
of	O
fixed	O
messages	O
Fixed	O
messages	O
,	O
pronunciation	O
for	O
each	O
note	O
,	O
and	O
a	O
few	O
melodies	O
are	O
recorded	O
as	O
ROM	B-Device
and	O
are	O
generated	O
by	O
playing	O
them	O
.	O
</s>
<s>
Atari	B-General_Concept
company	O
digital	O
/	O
analog	B-Device
joystick	I-Device
.	O
</s>
<s>
There	O
is	O
no	O
correspondence	O
in	O
the	O
commercial	B-Application
software	I-Application
,	O
but	O
the	O
driver	O
is	O
posted	O
on	O
the	O
waste	O
bin	O
and	O
can	O
be	O
input	O
even	O
in	O
the	O
analog	O
mode	O
.	O
</s>
<s>
MZ-2500	B-Device
with	O
Hitachi	B-General_Concept
HD64180	I-General_Concept
.	O
</s>
<s>
Board	O
with	O
MIDI	O
interface	B-Application
for	O
the	O
MZ-2500	B-Device
,	O
produced	O
on	O
the	O
same	O
base	O
,	O
provided	O
improved	O
sound	O
.	O
</s>
<s>
It	O
has	O
a	O
10MHz	O
version	O
of	O
HD64180	B-General_Concept
,	O
512KB	O
of	O
RAM	O
,	O
and	O
2KB	O
of	O
shared	O
RAM	O
,	O
and	O
the	O
main	O
unit	O
writes	O
data	O
to	O
the	O
shared	O
memory	O
and	O
uses	O
it	O
.	O
</s>
<s>
The	O
hardware	O
itself	O
does	O
not	O
depend	O
on	O
the	O
MZ-2500	B-Device
,	O
and	O
there	O
is	O
no	O
ROM	B-Device
such	O
as	O
firmware	O
,	O
so	O
if	O
you	O
have	O
a	O
control	O
program	O
,	O
you	O
can	O
use	O
it	O
with	O
an	O
MZ	O
with	O
a	O
slot	O
of	O
the	O
same	O
specification	O
.	O
</s>
<s>
Because	O
it	O
has	O
a	O
faster	O
CPU	B-Device
and	O
a	O
wider	O
memory	O
space	O
than	O
the	O
main	O
unit	O
side	O
,	O
it	O
is	O
possible	O
to	O
calculate	O
faster	O
than	O
the	O
main	O
unit	O
if	O
it	O
is	O
a	O
process	O
without	O
I	O
/	O
O	O
.	O
</s>
