<s>
In	O
Apple	B-Device
Macintosh	I-Device
computer	I-Device
programming	O
,	O
Component	B-Operating_System
Manager	I-Operating_System
was	O
one	O
of	O
many	O
approaches	O
to	O
sharing	O
code	O
that	O
originated	O
on	O
the	O
pre-PowerPC	O
Macintosh	B-Device
.	O
</s>
<s>
It	O
was	O
originally	O
introduced	O
as	O
part	O
of	O
QuickTime	B-Application
,	O
which	O
remained	O
the	O
part	O
of	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
that	O
used	O
it	O
most	O
heavily	O
.	O
</s>
<s>
Instead	O
,	O
they	O
were	O
interpreted	O
as	O
keys	O
into	O
internal	O
Component	B-Operating_System
Manager	I-Operating_System
tables	O
.	O
</s>
<s>
Components	O
were	O
identified	O
by	O
OSType	B-Application
codes	O
giving	O
their	O
type	O
,	O
subtype	O
and	O
"	O
manufacturer	O
"	O
.	O
</s>
<s>
Mac	B-Application
OS	I-Application
accumulated	O
a	O
great	O
variety	O
of	O
component	O
types	O
:	O
</s>
<s>
Within	O
QuickTime	B-Application
,	O
there	O
were	O
image	O
codecs	O
,	O
media	O
handlers	O
,	O
media	O
data	O
handlers	O
,	O
video	O
digitizer	O
drivers	O
,	O
file	O
format	O
importers	O
and	O
exporters	O
,	O
and	O
many	O
others	O
.	O
</s>
<s>
AppleScript	B-Application
introduced	O
the	O
concept	O
of	O
scripting	O
languages	O
implemented	O
as	O
components	O
.	O
</s>
<s>
QuickDraw	B-Operating_System
GX	I-Operating_System
"	O
font	O
scalers	O
"	O
were	O
renderers	O
for	O
the	O
different	O
font	O
formats	O
.	O
</s>
