<s>
The	O
Interactive	B-Application
Disassembler	I-Application
(	O
IDA	O
)	O
is	O
a	O
disassembler	O
for	O
computer	O
software	O
which	O
generates	O
assembly	B-Language
language	I-Language
source	O
code	O
from	O
machine-executable	B-Language
code	I-Language
.	O
</s>
<s>
It	O
supports	O
a	O
variety	O
of	O
executable	B-Application
formats	O
for	O
different	O
processors	O
and	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
It	O
can	O
also	O
be	O
used	O
as	O
a	O
debugger	B-Application
for	O
Windows	B-Application
PE	O
,	O
Mac	O
OS	O
X	O
Mach-O	B-Operating_System
,	O
and	O
Linux	B-Application
ELF	O
executables	B-Application
.	O
</s>
<s>
A	O
decompiler	B-Application
plug-in	O
,	O
which	O
generates	O
a	O
high	O
level	O
,	O
C	B-Language
source	O
code-like	O
representation	O
of	O
the	O
analysed	O
program	O
,	O
is	O
available	O
at	O
extra	O
cost	O
.	O
</s>
<s>
Ilfak	O
Guilfanov	O
began	O
working	O
on	O
IDA	O
in	O
1991	O
,	O
and	O
initially	O
distributed	O
it	O
as	O
a	O
shareware	B-License
application	O
.	O
</s>
<s>
In	O
1996	O
,	O
the	O
Belgian	O
company	O
DataRescue	O
took	O
over	O
the	O
development	O
of	O
IDA	O
and	O
began	O
to	O
sell	O
it	O
as	O
a	O
commercial	O
product	O
,	O
under	O
the	O
name	O
IDA	B-Application
Pro	I-Application
.	O
</s>
<s>
Initial	O
versions	O
of	O
IDA	O
did	O
not	O
have	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
,	O
and	O
ran	O
as	O
an	O
extended	B-Device
DOS	I-Device
,	O
OS/2	B-Application
,	O
or	O
Windows	B-Application
console	B-Device
application	I-Device
.	O
</s>
<s>
In	O
1999	O
,	O
DataRescue	O
released	O
the	O
first	O
version	O
of	O
IDA	B-Application
Pro	I-Application
with	O
a	O
GUI	B-Application
,	O
IDA	B-Application
Pro	I-Application
4.0	O
.	O
</s>
<s>
In	O
2005	O
,	O
Guilfanov	O
founded	O
Hex-Rays	B-Application
to	O
pursue	O
the	O
development	O
of	O
the	O
Hex-Rays	B-Application
Decompiler	B-Application
IDA	O
extension	O
.	O
</s>
<s>
In	O
January	O
2008	O
,	O
Hex-Rays	B-Application
assumed	O
the	O
development	O
and	O
support	O
of	O
DataRescue	O
's	O
IDA	B-Application
Pro	I-Application
.	O
</s>
<s>
IDA	O
disassembles	O
a	O
compiled	O
program	O
back	O
into	O
an	O
assembly	B-Language
language	I-Language
representation	O
.	O
</s>
<s>
supports	O
Ruby	B-Language
and	O
adds	O
support	O
for	O
Python	B-Language
.	O
</s>
<s>
As	O
of	O
version	O
5.4	O
,	O
IDAPython	O
(	O
dependent	O
on	O
Python	B-Language
2.5	O
)	O
comes	O
preinstalled	O
with	O
IDA	B-Application
Pro	I-Application
.	O
</s>
<s>
IDA	B-Application
Pro	I-Application
supports	O
a	O
number	O
of	O
debuggers	B-Application
,	O
including	O
:	O
</s>
<s>
The	O
latest	O
full	O
version	O
of	O
IDA	B-Application
Pro	I-Application
is	O
commercial	O
(	O
version	O
8.2	O
as	O
of	O
December	O
2022	O
)	O
,	O
while	O
a	O
less	O
capable	O
version	O
,	O
named	O
IDA	O
Free	O
,	O
is	O
available	O
for	O
download	O
free	O
of	O
cost	O
.	O
</s>
