<s>
The	O
Dragon	B-Device
32	I-Device
and	O
Dragon	B-Device
64	I-Device
are	O
home	O
computers	O
that	O
were	O
built	O
in	O
the	O
1980s	O
.	O
</s>
<s>
The	O
Dragons	O
are	O
very	O
similar	O
to	O
the	O
TRS-80	B-Device
Color	I-Device
Computer	I-Device
,	O
and	O
were	O
produced	O
for	O
the	O
European	O
market	O
by	O
Dragon	O
Data	O
,	O
Ltd.	O
,	O
initially	O
in	O
Swansea	O
,	O
Wales	O
before	O
moving	O
to	O
Port	O
Talbot	O
,	O
Wales	O
(	O
until	O
1984	O
)	O
and	O
by	O
Eurohard	O
S.A.	O
in	O
Casar	O
de	O
Cáceres	O
,	O
Spain	O
(	O
from	O
1984	O
to	O
1987	O
)	O
,	O
and	O
for	O
the	O
US	O
market	O
by	O
Tano	O
of	O
New	O
Orleans	O
,	O
Louisiana	O
.	O
</s>
<s>
The	O
model	O
numbers	O
reflect	O
the	O
primary	O
difference	O
between	O
the	O
two	O
machines	O
,	O
which	O
have	O
32	O
and	O
64	O
kilobytes	O
of	O
RAM	B-Architecture
,	O
respectively	O
.	O
</s>
<s>
Dragon	O
Data	O
introduced	O
the	O
Dragon	B-Device
32	I-Device
microcomputer	O
in	O
August	O
1982	O
,	O
followed	O
by	O
the	O
Dragon	B-Device
64	I-Device
a	O
year	O
later	O
.	O
</s>
<s>
The	O
Dragon	B-Device
computers	I-Device
were	O
built	O
around	O
the	O
Motorola	B-Device
MC6809E	I-Device
processor	O
and	O
featured	O
a	O
composite	O
monitor	O
port	O
,	O
allowing	O
connection	O
to	O
modern	O
TVs	O
.	O
</s>
<s>
The	O
Dragon	O
came	O
with	O
a	O
Microsoft	O
BASIC	O
interpreter	O
in	O
ROM	B-Device
,	O
which	O
allowed	O
instant	O
system	O
start-up	O
.	O
</s>
<s>
The	O
Dragon	B-Device
32/64	I-Device
was	O
capable	O
of	O
running	O
multiple	O
disk	O
operating	O
systems	O
,	O
and	O
a	O
range	O
of	O
popular	O
games	O
were	O
ported	O
to	O
the	O
system	O
.	O
</s>
<s>
The	O
Dragon	B-Device
32	I-Device
and	O
Dragon	B-Device
64	I-Device
were	O
similar	O
,	O
but	O
the	O
Dragon	B-Device
64	I-Device
had	O
a	O
functional	O
RS-232	O
serial	O
port	O
not	O
included	O
in	O
the	O
Dragon	B-Device
32	I-Device
.	O
</s>
<s>
Overall	O
,	O
the	O
Dragon	B-Device
computers	I-Device
were	O
initially	O
well-received	O
but	O
faced	O
limitations	O
that	O
hindered	O
their	O
long-term	O
success	O
.	O
</s>
<s>
Dragon	O
Data	O
entered	O
the	O
market	O
in	O
August	O
1982	O
with	O
the	O
Dragon	B-Device
32	I-Device
.	O
</s>
<s>
The	O
Dragon	B-Device
64	I-Device
followed	O
a	O
year	O
later	O
.	O
</s>
<s>
The	O
graphics	O
capabilities	O
trailed	O
behind	O
other	O
computers	O
such	O
as	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
and	O
BBC	B-Device
Micro	I-Device
.	O
</s>
<s>
It	O
was	O
acquired	O
by	O
the	O
Spanish	O
company	O
Eurohard	O
S.A.	O
,	O
which	O
moved	O
the	O
factory	O
from	O
Wales	O
to	O
Cáceres	O
and	O
released	O
the	O
Dragon	O
200	O
(	O
a	O
Dragon	B-Device
64	I-Device
with	O
a	O
new	O
case	O
that	O
allowed	O
a	O
monitor	O
to	O
be	O
placed	O
on	O
top	O
)	O
and	O
the	O
Dragon	O
200-E	O
(	O
an	O
enhanced	O
Dragon	O
200	O
with	O
both	O
upper	O
and	O
lower	O
case	O
characters	O
and	O
a	O
Spanish	O
keyboard	O
)	O
,	O
but	O
ultimately	O
filed	O
for	O
bankruptcy	O
in	O
1987	O
.	O
</s>
<s>
In	O
the	O
United	O
States	O
it	O
was	O
possible	O
to	O
purchase	O
the	O
Tano	B-Device
Dragon	I-Device
new	O
in	O
box	O
until	O
early	O
2017	O
from	O
California	O
Digital	O
,	O
a	O
retailer	O
that	O
purchased	O
the	O
remaining	O
stock	O
.	O
</s>
<s>
The	O
Dragon	O
is	O
built	O
around	O
the	O
Motorola	B-Device
MC6809E	I-Device
processor	O
running	O
at	O
0.89	O
MHz	O
.	O
</s>
<s>
It	O
was	O
possible	O
to	O
increase	O
the	O
speed	O
of	O
the	O
computer	O
by	O
using	O
POKE	B-Language
65495	O
,	O
0	O
which	O
accelerated	O
the	O
ROM-resident	O
BASIC	O
interpreter	O
,	O
but	O
temporarily	O
disabled	O
proper	O
functioning	O
of	O
the	O
cassette/printer	O
ports	O
.	O
</s>
<s>
Manufacturing	O
variances	O
mean	O
that	O
not	O
all	O
Dragons	O
were	O
able	O
to	O
function	O
at	O
this	O
higher	O
speed	O
,	O
and	O
use	O
of	O
this	O
POKE	B-Language
could	O
cause	O
some	O
units	O
to	O
crash	O
or	O
be	O
unstable	O
,	O
though	O
with	O
no	O
permanent	O
damage	O
.	O
</s>
<s>
POKE	B-Language
65494	O
,	O
0	O
returned	O
the	O
speed	O
to	O
normal	O
.	O
</s>
<s>
POKE	B-Language
65497	O
,	O
0	O
pushed	O
the	O
speed	O
yet	O
higher	O
but	O
the	O
display	O
was	O
lost	O
until	O
a	O
slower	O
speed	O
was	O
restored	O
.	O
</s>
<s>
The	O
Dragon	O
used	O
the	O
SN74LS783/MC6883	O
Synchronous	O
Address	O
Multiplexer	O
(	O
SAM	O
)	O
and	O
the	O
MC6847	B-General_Concept
Video	O
Display	O
Generator	O
(	O
VDG	O
)	O
.	O
</s>
<s>
I/O	O
was	O
provided	O
by	O
two	O
MC6821	O
Peripheral	B-General_Concept
Interface	I-General_Concept
Adapters	I-General_Concept
(	O
PIAs	O
)	O
.	O
</s>
<s>
Many	O
Dragon	B-Device
32s	I-Device
were	O
upgraded	O
by	O
their	O
owners	O
to	O
64KB	O
of	O
memory	O
.	O
</s>
<s>
A	O
broad	O
range	O
of	O
peripherals	O
exist	O
for	O
the	O
Dragon	B-Device
32/64	I-Device
,	O
and	O
there	O
are	O
add-ons	O
such	O
as	O
the	O
Dragon	O
's	O
Claw	O
which	O
give	O
the	O
Dragons	O
a	O
port	O
that	O
is	O
hardware-compatible	O
with	O
the	O
BBC	B-Device
Micro	I-Device
's	O
user	O
port	O
,	O
though	O
separate	O
software	O
drivers	O
for	O
connected	O
devices	O
must	O
be	O
developed	O
.	O
</s>
<s>
The	O
computer	O
featured	O
a	O
composite	O
monitor	O
port	O
as	O
an	O
alternative	O
to	O
the	O
TV	O
RF	O
output	O
which	O
can	O
be	O
used	O
to	O
connect	O
the	O
Dragon	B-Device
32	I-Device
to	O
most	O
modern	O
TVs	O
to	O
deliver	O
a	O
much	O
better	O
picture	O
.	O
</s>
<s>
Other	O
uses	O
for	O
the	O
joystick	O
ports	O
included	O
light	B-Device
pens	I-Device
.	O
</s>
<s>
The	O
units	O
had	O
a	O
robust	O
motherboard	B-Device
in	O
a	O
spacious	O
case	O
,	O
reminiscent	O
of	O
the	O
BBC	B-Device
Micro	I-Device
,	O
and	O
so	O
were	O
more	O
tolerant	O
of	O
aftermarket	O
modification	O
than	O
some	O
of	O
their	O
contemporaries	O
,	O
which	O
often	O
had	O
their	O
components	O
crammed	O
into	O
the	O
smallest	O
possible	O
space	O
.	O
</s>
<s>
Full-colour	O
,	O
scanline-based	O
64×192	O
semi-graphics	B-Data_Structure
modes	O
are	O
also	O
possible	O
,	O
though	O
their	O
imbalanced	O
resolution	O
and	O
programming	O
difficulty	O
(	O
not	O
being	O
accessible	O
via	O
BASIC	O
)	O
meant	O
they	O
were	O
not	O
often	O
utilised	O
.	O
</s>
<s>
The	O
Dragon	O
comes	O
with	O
a	O
Microsoft	O
BASIC	O
interpreter	O
in	O
16KB	O
of	O
ROM	B-Device
.	O
</s>
<s>
The	O
BASIC	O
appears	O
to	O
be	O
nearly	O
identical	O
to	O
Tandy	B-Language
Color	I-Language
Computer	I-Language
's	I-Language
Extended	I-Language
Basic	I-Language
with	O
a	O
few	O
changes	O
necessary	O
to	O
interact	O
with	O
the	O
Dragon	O
system	O
.	O
</s>
<s>
In	O
common	O
with	O
home	O
computers	O
of	O
the	O
time	O
,	O
the	O
entire	O
operating	O
software	O
was	O
included	O
on	O
a	O
ROM	B-Device
chip	I-Device
;	O
therefore	O
,	O
the	O
system	O
starts	O
instantly	O
when	O
powered	O
up	O
.	O
</s>
<s>
Some	O
software	O
providers	O
also	O
produced	O
compilers	O
for	O
BASIC	O
and	O
other	O
languages	O
to	O
produce	O
binary	O
(	O
or	O
"	O
machine	O
"	O
)	O
code	O
which	O
would	O
run	O
many	O
times	O
faster	O
and	O
make	O
better	O
use	O
of	O
the	O
small	O
system	O
RAM	B-Architecture
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
DragonDOS	O
disk	O
operating	O
system	O
,	O
the	O
Dragon	B-Device
32/64	I-Device
is	O
capable	O
of	O
running	O
several	O
others	O
,	O
including	O
FLEX	B-Device
,	O
and	O
even	O
OS-9	B-Operating_System
which	O
brought	O
UNIX-like	O
multitasking	O
to	O
the	O
platform	O
.	O
</s>
<s>
Memory-expanded	O
and	O
MMU-equipped	O
Dragons	O
are	O
able	O
to	O
run	O
OS-9	B-Operating_System
Level	O
2	O
.	O
</s>
<s>
Top-selling	O
games	O
available	O
for	O
the	O
Dragon	O
include	O
Arcadia	B-Application
(	O
Imagine	O
)	O
,	O
Chuckie	B-Application
Egg	I-Application
(	O
A&F	O
)	O
,	O
Manic	B-Application
Miner	I-Application
and	O
sequel	O
Jet	B-Application
Set	I-Application
Willy	I-Application
(	O
Software	O
Projects	O
)	O
,	O
Hunchback	B-Application
(	O
Ocean	O
)	O
and	O
Football	B-Application
Manager	I-Application
(	O
Addictive	O
)	O
.	O
</s>
<s>
Their	O
character	O
Cuthbert	O
appeared	O
in	O
several	O
games	O
,	O
with	O
Cuthbert	B-Application
Goes	I-Application
Walkabout	I-Application
also	O
being	O
converted	O
for	O
Atari	B-Device
8-bit	I-Device
and	O
Commodore	O
64	O
systems	O
.	O
</s>
<s>
Some	O
of	O
their	O
final	O
games	O
developed	O
for	O
the	O
Dragon	O
in	O
1987	O
such	O
as	O
Tanglewood	B-Application
and	O
Airball	B-Device
were	O
also	O
converted	O
for	O
16-bit	O
machines	O
such	O
as	O
the	O
Atari	B-Device
ST	I-Device
and	O
Amiga	B-Device
.	O
</s>
<s>
Both	O
the	O
Dragon	O
and	O
the	O
TRS-80	B-Device
Color	I-Device
Computer	I-Device
are	O
based	O
on	O
a	O
Motorola	O
data	O
sheet	O
design	O
for	O
the	O
MC6883	O
SAM	O
(	O
MMU	O
)	O
chip	O
for	O
memory	O
management	O
and	O
peripheral	O
control	O
.	O
</s>
<s>
It	O
is	O
possible	O
to	O
permanently	O
convert	O
a	O
Color	B-Device
Computer	I-Device
into	O
a	O
Dragon	O
by	O
swapping	O
the	O
original	O
Color	B-Device
Computer	I-Device
ROM	B-Device
and	O
rewiring	O
the	O
keyboard	O
cable	O
.	O
</s>
<s>
The	O
Dragon	O
has	O
additional	O
circuitry	O
to	O
make	O
the	O
MC6847	B-General_Concept
VDG	O
compatible	O
with	O
European	O
625-line	O
television	O
standards	O
,	O
rather	O
than	O
the	O
US	O
525-line	O
NTSC	O
standard	O
,	O
and	O
a	O
Centronics	O
parallel	O
printer	O
port	O
not	O
present	O
on	O
the	O
TRS-80	O
.	O
</s>
<s>
Aside	O
from	O
the	O
amount	O
of	O
RAM	B-Architecture
,	O
the	O
Dragon	B-Device
64	I-Device
also	O
has	O
a	O
functional	O
RS-232	O
serial	O
port	O
which	O
was	O
not	O
included	O
on	O
the	O
Dragon	B-Device
32	I-Device
.	O
</s>
<s>
A	O
minor	O
difference	O
between	O
the	O
two	O
Dragon	O
models	O
is	O
the	O
outer	O
case	O
colour	O
;	O
the	O
Dragon	B-Device
32	I-Device
is	O
beige	O
and	O
the	O
Dragon	B-Device
64	I-Device
is	O
light	O
grey	O
.	O
</s>
<s>
Besides	O
the	O
case	O
,	O
branding	O
and	O
the	O
Dragon	B-Device
64	I-Device
's	O
serial	O
port	O
,	O
the	O
two	O
machines	O
look	O
the	O
same	O
.	O
</s>
<s>
The	O
Dragon	B-Device
32	I-Device
is	O
upgradable	O
to	O
Dragon	B-Device
64	I-Device
.	O
</s>
<s>
In	O
some	O
cases	O
,	O
buyers	O
of	O
the	O
Dragon	B-Device
32	I-Device
found	O
that	O
they	O
actually	O
received	O
a	O
Dragon	B-Device
64	I-Device
unit	O
.	O
</s>
<s>
BYTE	B-Application
wrote	O
in	O
January	O
1983	O
that	O
the	O
Dragon	B-Device
32	I-Device
"	O
offers	O
more	O
feature	O
for	O
the	O
money	O
than	O
most	O
of	O
its	O
 [ British ] 	O
competitors	O
"	O
,	O
but	O
"	O
there	O
's	O
nothing	O
exceptional	O
about	O
it	O
"	O
.	O
</s>
<s>
The	O
review	O
described	O
it	O
as	O
a	O
redesigned	O
,	O
less-expensive	O
Color	B-Device
Computer	I-Device
with	O
32K	O
RAM	B-Architecture
and	O
better	O
keyboard	O
.	O
</s>
