<s>
Aquarius	O
is	O
a	O
home	O
computer	O
designed	O
by	O
Radofin	O
and	O
released	O
by	O
Mattel	B-Operating_System
Electronics	I-Operating_System
in	O
1983	O
.	O
</s>
<s>
Based	O
on	O
the	O
Zilog	B-General_Concept
Z80	I-General_Concept
microprocessor	O
,	O
the	O
system	O
has	O
a	O
rubber	O
chiclet	B-Device
keyboard	I-Device
,	O
4K	O
of	O
RAM	B-Architecture
,	O
and	O
a	O
subset	O
of	O
Microsoft	B-Language
BASIC	I-Language
in	O
ROM	B-Device
.	O
</s>
<s>
It	O
connects	O
to	O
a	O
television	O
set	O
for	O
audiovisual	O
output	O
,	O
and	O
uses	O
a	O
cassette	B-Device
tape	I-Device
recorder	I-Device
for	O
secondary	O
data	O
storage	O
.	O
</s>
<s>
A	O
limited	O
number	O
of	O
peripherals	O
,	O
such	O
as	O
a	O
40-column	O
thermal	O
printer	O
,	O
a	O
4-color	O
printer/plotter	O
,	O
and	O
a	O
300	O
baud	O
modem	B-Application
,	O
were	O
released	O
.	O
</s>
<s>
Looking	O
to	O
compete	O
in	O
the	O
home	O
computer	O
market	O
,	O
Mattel	B-Operating_System
Electronics	I-Operating_System
turned	O
to	O
Radofin	O
,	O
the	O
Hong	O
Kong	O
based	O
manufacturer	O
of	O
their	O
Intellivision	B-Operating_System
consoles	O
.	O
</s>
<s>
The	O
Aquarius	O
was	O
often	O
bundled	O
with	O
the	O
Mini-Expander	O
peripheral	O
,	O
which	O
added	O
game	O
pads	O
,	O
an	O
additional	O
cartridge	B-Protocol
port	O
for	O
memory	O
expansion	O
,	O
and	O
the	O
General	B-Device
Instrument	I-Device
AY-3-8910	I-Device
sound	O
chip	O
.	O
</s>
<s>
Other	O
peripherals	O
were	O
the	O
Data	O
recorder	O
,	O
40	O
column	O
thermal	O
printer	O
,	O
4K	O
and	O
16K	O
ram	B-Architecture
carts	O
.	O
</s>
<s>
Less	O
common	O
first	O
party	O
peripherals	O
include	O
a	O
300	O
baud	O
cartridge	B-Protocol
modem	B-Application
,	O
32k	O
RAM	B-Architecture
cart	O
,	O
4	O
color	O
plotter	O
,	O
and	O
Quick	O
Disk	O
drive	O
.	O
</s>
<s>
Although	O
less	O
expensive	O
than	O
the	O
TI-99/4A	B-Device
and	O
VIC-20	B-Device
,	O
the	O
Aquarius	O
had	O
comparatively	O
weak	O
graphics	O
and	O
limited	O
memory	O
.	O
</s>
<s>
Internally	O
,	O
Mattel	O
programmers	O
adopted	O
Bob	O
Del	O
Principe	O
's	O
mock	O
slogan	O
,	O
"	O
Aquarius	O
-a	O
system	O
for	O
the	O
seventies	O
"	O
.	O
</s>
<s>
Of	O
the	O
32	O
software	O
titles	O
Mattel	O
announced	O
for	O
the	O
unit	O
,	O
only	O
21	O
were	O
released	O
,	O
most	O
of	O
which	O
were	O
ports	O
of	O
Intellivision	B-Operating_System
games	O
.	O
</s>
<s>
The	O
cassette	B-Device
port	O
,	O
although	O
using	O
the	O
same	O
5-Pin	O
DIN	B-Architecture
41524	I-Architecture
connector	I-Architecture
as	O
the	O
TRS-80	B-Device
,	O
did	O
not	O
have	O
the	O
same	O
pin	O
out	O
and	O
thus	O
was	O
incompatible	O
with	O
readily	O
available	O
cables	O
for	O
the	O
TRS-80	B-Device
,	O
even	O
though	O
they	O
physically	O
fit	O
the	O
sockets	O
on	O
both	O
the	O
computer	O
and	O
cassette	B-Device
player	O
.	O
</s>
<s>
The	O
Aquarius	O
branded	O
cassette	B-Device
deck	O
came	O
with	O
the	O
appropriate	O
cable	O
.	O
</s>
<s>
The	O
interface	O
conforms	O
to	O
RS-232	O
serial	O
signal	O
standards	O
( +	O
12VDC/	O
-12VDC	O
)	O
,	O
with	O
the	O
knowledge	O
of	O
the	O
pinout	O
it	O
is	O
possible	O
to	O
interface	O
printers	O
with	O
a	O
corresponding	O
RS-232	O
interface	O
.	O
</s>
<s>
Typical	O
serial	O
printers	O
had	O
DB-25	B-Protocol
interfaces	O
;	O
some	O
had	O
DE-9	B-Protocol
interfaces	O
;	O
and	O
,	O
some	O
Radio	O
Shack	O
(	O
RS	B-Language
)	O
printers	O
had	O
round	O
4-pin	O
female	O
DIN	B-Architecture
connector	I-Architecture
serial	O
interfaces	O
(	O
with	O
the	O
pin	O
sockets	O
numbered	O
left-to-right	O
:	O
4	O
,	O
3	O
,	O
2	O
,	O
1	O
)	O
.	O
</s>
<s>
The	O
following	O
table	O
shows	O
the	O
Mattel	B-Device
Aquarius	I-Device
character	I-Device
set	I-Device
.	O
</s>
<s>
Title	O
Publisher	O
Release	O
dateAdvanced	O
Dungeons	O
&	O
Dragons	O
:	O
Treasure	O
of	O
TarminMattel1982AliensAdd	O
On	O
Electronics1983Aquapack	O
1	O
(	O
Snake	O
,	O
Breakout	B-Application
,	O
Moon	O
Shuttle	O
)	O
Apocalypse	O
Software	O
???	O
</s>
<s>
?	O
Demo	O
Cassette	B-Device
(	O
Stalactites	O
,	O
Macho-Man	O
,	O
Torment	O
,	O
Cute	O
Cubes	O
,	O
Alien	O
Quest	O
,	O
Mad	O
Mould	O
)	O
Radofin	O
Electronics1983Disco	O
FeverAdd	O
On	O
Electronics1984Doomsday	O
DefenderCronosoft2022Ed-OnAdd	O
On	O
Electronics1983First	O
AdventureDigital	O
Output1984Games	O
Pack	O
1	O
(	O
Stalactites	O
,	O
Macho-Man	O
,	O
Othello	O
,	O
Mutants	O
)	O
Add	O
On	O
Electronics1983Games	O
Pack	O
2	O
(	O
Bounder	O
,	O
Local	O
Bomber	O
,	O
Breakout	B-Application
,	O
Night	O
Driver	O
)	O
Custom	O
Cables	O
International1984Games	O
Pack	O
3	O
(	O
Metior	O
,	O
Sheepdog	O
,	O
Mastermind	O
,	O
Depthcharge	O
)	O
Custom	O
Cables	O
International1984Games	O
Pack	O
4	O
(	O
Painter	O
,	O
Pontoon	O
,	O
Grand	O
Prix	O
,	O
Alien	O
Storm	O
)	O
Custom	O
Cables	O
International1984GamesTape	O
(	O
Dodge	O
It	O
,	O
Trojan	O
Dragon	O
,	O
Death	O
Trap	O
,	O
Tablets	O
of	O
Hippocrates	O
)	O
Fawkes	O
Computing1984Gamespack	O
1	O
(	O
Snake	O
,	O
Masterguess	O
,	O
Symon	O
,	O
Bomber	O
,	O
Hi-Lo	O
)	O
Processor	O
Software1984Gamespack	O
2	O
(	O
Collector	O
,	O
Blocked	O
!,	O
Rocket	O
Run	O
,	O
Minefield	O
,	O
Air-Defence	O
)	O
Processor	O
Software1984Grid	O
BugAdd	O
On	O
Electronics1983HopperMicrodeal1984InvadersDick	O
Smith	O
Electronics1984Kronos	O
Europea	O
Cassette	B-Device
(	O
Gamble	O
,	O
Gunfight	O
,	O
Mad	O
Mould	O
,	O
Outline	O
)	O
Radofin	O
Electronics1984Maths	O
ArmadaDick	O
Smith	O
Electronics1984MazanticsAdd	O
On	O
Electronics1983Melody	O
ChaseMattel1983MillypedeAdd	O
On	O
Electronics1983Mower	O
ManAdd	O
On	O
Electronics1984N-VadersAdd	O
On	O
Electronics1983Night	O
StalkerMattel1982Outpack	O
1	O
(	O
Snake	O
,	O
Masterguess	O
,	O
Symon	O
,	O
Bomber	O
,	O
Hi-Lo	O
)	O
Digital	O
Output1984Outpack	O
2	O
(	O
Collector	O
,	O
Blocked	O
,	O
Rocket	O
Run	O
,	O
Minefield	O
,	O
Air-Defence	O
)	O
Digital	O
Output1984Outpack	O
3	O
(	O
Gunfight	O
,	O
Gambler	O
,	O
Moonlander	O
,	O
Tracker	O
,	O
Nim	O
)	O
Digital	O
Output1984Outpack	O
4	O
(	O
Super	O
Slot	O
,	O
Golf	O
,	O
Invasion	O
,	O
Killer	O
Sub	O
,	O
Survival	O
)	O
Digital	O
Output1984Outpack	O
5	O
(	O
Timetrap	O
,	O
Gro-Worm	O
,	O
Wampus	O
Gold	O
,	O
Bumpers	O
,	O
Space	O
Shoot	O
)	O
Digital	O
Output1984Pac	O
MrAdd	O
On	O
Electronics1983PhroggerAdd	O
On	O
Electronics1984Postman	O
PotAdd	O
On	O
Electronics1984Rally	O
DriverMicro	O
Mart	O
Software1984ScrambleMicro	O
Mart	O
Software1984SnafuMattel1982Space	O
RamDick	O
Smith	O
Electronics1984Space	O
SpellerMattel1983TrackerDigital	O
Output	O
???	O
</s>
