<s>
Donationware	B-License
is	O
a	O
licensing	O
model	O
that	O
supplies	O
fully	O
operational	O
unrestricted	O
software	O
to	O
the	O
user	O
and	O
requests	O
an	O
optional	O
donation	O
be	O
paid	O
to	O
the	O
programmer	O
or	O
a	O
third-party	O
beneficiary	O
(	O
usually	O
a	O
non-profit	O
)	O
.	O
</s>
<s>
Since	O
donationware	B-License
comes	O
fully	O
operational	O
(	O
i.e.	O
</s>
<s>
not	O
crippleware/freemium	O
)	O
when	O
payment	O
is	O
optional	O
,	O
it	O
is	O
a	O
type	O
of	O
freeware	B-License
.	O
</s>
<s>
An	O
example	O
of	O
donationware	B-License
is	O
the	O
1987	O
Atari	B-Device
ST	I-Device
video	O
game	O
Ballerburg	B-Application
,	O
whose	O
programmer	O
distributed	O
the	O
game	O
for	O
free	O
but	O
asked	O
for	O
a	O
donation	O
,	O
offering	O
as	O
incentive	O
the	O
source	O
code	O
for	O
the	O
game	O
.	O
</s>
<s>
Red	O
Ryder	O
was	O
a	O
terminal	B-Application
emulation	I-Application
software	O
program	O
created	O
for	O
the	O
Apple	B-Device
Macintosh	I-Device
in	O
the	O
1980s	O
that	O
used	O
donations	O
to	O
fund	O
development	O
..	O
</s>
