<s>
The	O
Free	B-Language
Component	I-Language
Library	I-Language
,	O
abbreviated	O
FCL	O
,	O
is	O
a	O
software	O
component	O
library	O
for	O
Free	B-Operating_System
Pascal	I-Operating_System
.	O
</s>
<s>
The	O
FCL	O
consists	O
of	O
a	O
collection	O
of	O
units	B-Architecture
that	O
provide	O
components	B-Architecture
and	O
classes	O
for	O
general	O
programming	O
tasks	O
.	O
</s>
<s>
Although	O
it	O
is	O
intended	O
to	O
be	O
compatible	O
with	O
Delphi	B-Language
's	O
Visual	B-Library
Component	I-Library
Library	I-Library
(	O
VCL	O
)	O
the	O
FCL	O
is	O
restricted	O
to	O
non-visual	O
components	B-Architecture
.	O
</s>
<s>
Visual	O
components	B-Architecture
are	O
provided	O
by	O
the	O
Lazarus	B-Language
Component	I-Language
Library	I-Language
(	O
LCL	O
)	O
.	O
</s>
<s>
The	O
FCL	O
is	O
based	O
on	O
the	O
Free	B-Language
Pascal	I-Language
Runtime	I-Language
Library	I-Language
(	O
RTL	O
)	O
.	O
</s>
