<s>
Amiga	B-Device
demos	I-Device
are	O
demos	O
created	O
for	O
the	O
Amiga	B-Device
home	O
computer	O
.	O
</s>
<s>
Since	O
the	O
Amiga	B-Device
's	O
hardware	O
was	O
more	O
or	O
less	O
fixed	O
(	O
unlike	O
today	O
's	O
PC	O
industry	O
,	O
where	O
arbitrary	O
combinations	O
of	O
hardware	O
can	O
be	O
put	O
together	O
)	O
,	O
there	O
was	O
competition	O
to	O
test	O
the	O
limits	O
of	O
that	O
hardware	O
and	O
perform	O
theoretically	O
"	O
impossible	O
"	O
feats	O
by	O
refactoring	O
the	O
problem	O
at	O
hand	O
.	O
</s>
<s>
In	O
Europe	O
the	O
Amiga	B-Device
was	O
the	O
undisputed	O
leader	O
of	O
mainstream	O
multimedia	O
computing	O
in	O
the	O
late	O
1980s	O
and	O
early	O
1990s	O
,	O
though	O
it	O
was	O
eventually	O
overtaken	O
by	O
PC	O
architecture	O
.	O
</s>
<s>
Some	O
Amiga	B-Device
demos	I-Device
,	O
such	O
as	O
the	O
RSI	O
Megademo	O
,	O
Kefrens	O
Megademo	O
VIII	O
or	O
Crionics	O
&	O
The	O
Silents	O
"	O
Hardwired	O
"	O
are	O
considered	O
seminal	O
works	O
in	O
the	O
demo	O
field	O
.	O
</s>
<s>
New	O
Amiga	B-Device
demos	I-Device
are	O
released	O
even	O
today	O
,	O
although	O
the	O
demo	O
scene	O
has	O
firmly	O
moved	O
onto	O
PC	O
hardware	O
.	O
</s>
<s>
Many	O
Amiga	B-Device
game	O
developers	O
were	O
active	O
in	O
the	O
demo	O
scene	O
.	O
</s>
<s>
The	O
demo	O
scene	O
spearheaded	O
development	O
in	O
multimedia	O
programming	O
techniques	O
for	O
the	O
Amiga	B-Device
,	O
such	O
that	O
it	O
was	O
de	O
rigueur	O
for	O
the	O
latest	O
visual	O
tricks	O
,	O
soundtrackers	O
and	O
3D	O
algorithms	O
from	O
the	O
demo	O
scene	O
to	O
end	O
up	O
being	O
used	O
in	O
computer	O
game	O
development	O
.	O
</s>
<s>
Most	O
demos	O
were	O
written	O
in	O
68000	B-Device
assembly	B-Language
language	I-Language
,	O
although	O
a	O
few	O
were	O
written	O
in	O
C	O
and	O
other	O
languages	O
.	O
</s>
<s>
To	O
utilize	O
full	O
hardware	O
performance	O
,	O
Amiga	B-Device
demos	I-Device
were	O
optimized	O
and	O
written	O
entirely	O
for	O
one	O
purpose	O
in	O
assembly	O
(	O
avoiding	O
generic	O
and	O
portable	O
code	O
)	O
.	O
</s>
<s>
Additional	O
performance	O
was	O
achieved	O
by	O
utilizing	O
several	O
coprocessors	O
,	O
including	O
a	O
blitter	B-General_Concept
,	O
in	O
parallel	O
with	O
the	O
68000	B-Device
.	O
</s>
<s>
Eric	O
Schwartz	O
produced	O
a	O
series	O
of	O
animated	O
demos	O
that	O
ran	O
with	O
MoviePlayer	O
,	O
an	O
animation	O
software	O
package	O
similar	O
to	O
Toon	B-Application
Boom	I-Application
.	O
</s>
<s>
Intros	O
were	O
originally	O
used	O
as	O
tags	O
by	O
cracking	B-Application
groups	I-Application
on	O
computer	O
games	O
and	O
other	O
software	O
.	O
</s>
<s>
The	O
Amiga	B-Device
thrived	O
on	O
public	O
domain	O
,	O
freeware	B-License
and	O
other	O
not-for-profit	O
development	O
.	O
</s>
<s>
In	O
order	O
to	O
read	O
the	O
memory	O
one	O
simply	O
performed	O
a	O
hot	O
reset	O
(	O
which	O
preserved	O
the	O
contents	O
of	O
RAM	B-Architecture
)	O
and	O
then	O
booted	O
to	O
a	O
dedicated	O
floppy	B-Device
disk	I-Device
that	O
could	O
inspect	O
and	O
dump	O
the	O
memory	O
's	O
contents	O
.	O
</s>
<s>
This	O
led	O
to	O
intense	O
competition	O
in	O
certain	O
fields	O
,	O
for	O
example	O
,	O
in	O
the	O
development	O
of	O
sound	O
tracking	O
software	O
and	O
Tetris	B-Device
clones	I-Device
,	O
with	O
each	O
group	O
of	O
developers	O
trying	O
to	O
outdo	O
the	O
current	O
state	O
of	O
the	O
art	O
.	O
</s>
