<s>
Avro	B-Application
Keyboard	I-Application
(	O
)	O
is	O
a	O
free	B-License
and	I-License
open	I-License
source	I-License
graphical	O
keyboard	O
software	O
developed	O
by	O
OmicronLab	O
for	O
the	O
Microsoft	B-Application
Windows	I-Application
,	O
Linux	B-Application
,	O
MacOS	B-Application
,	O
and	O
several	O
other	O
software	O
additionally	O
adapted	O
its	O
phonetic	O
layout	O
for	O
Android	B-Application
and	O
iOS	B-Application
operating	O
system	O
.	O
</s>
<s>
It	O
is	O
the	O
first	O
free	O
Unicode	O
and	O
ANSI	O
compliant	O
Bengali	O
keyboard	O
interface	O
for	O
Windows	B-Application
that	O
was	O
published	O
on	O
26	O
March	O
2003	O
.	O
</s>
<s>
Avro	B-Application
Keyboard	I-Application
has	O
support	O
for	O
fixed	O
keyboard	O
layout	O
and	O
phonetic	O
layout	O
named	O
"	O
Avro	O
Phonetic	O
"	O
that	O
allows	O
typing	O
Bengali	O
through	O
romanized	O
transliteration	O
.	O
</s>
<s>
Avro	B-Application
Keyboard	I-Application
comes	O
with	O
many	O
additional	O
features	O
;	O
auto	O
correction	O
,	O
spell	O
checker	O
,	O
a	O
font	O
fixer	O
tool	O
to	O
set	O
default	O
Bengali	O
font	O
,	O
a	O
keyboard	O
layout	O
editor	O
,	O
Unicode	O
to	O
ANSI	O
converter	O
,	O
ANSI	O
to	O
Unicode	O
converter	O
and	O
a	O
set	O
of	O
Bengali	O
Unicode	O
and	O
ANSI	O
fonts	O
.	O
</s>
<s>
This	O
software	O
is	O
provided	O
in	O
a	O
Standard	O
Installer	O
edition	O
and	O
Portable	O
edition	O
for	O
Windows	B-Application
.	O
</s>
<s>
Development	O
of	O
Avro	B-Application
Keyboard	I-Application
was	O
started	O
in	O
2003	O
by	O
Dr.	O
Mehdi	O
Hasan	O
Khan	O
,	O
a	O
student	O
from	O
Mymensingh	O
Medical	O
College	O
.	O
</s>
<s>
Initially	O
,	O
it	O
was	O
developed	O
in	O
Visual	B-Language
Basic	I-Language
,	O
which	O
was	O
later	O
transferred	O
to	O
Delphi	B-Language
.	O
</s>
<s>
After	O
discussion	O
,	O
OmicronLab	O
published	O
the	O
source	O
code	O
of	O
windows	B-Application
version	O
under	O
MPL	B-License
1.1	I-License
license	O
with	O
the	O
Avro	B-Application
Keyboard	I-Application
5.0.5	O
public	O
beta	O
1	O
.	O
</s>
<s>
Initially	O
,	O
the	O
Linux	B-Application
version	O
of	O
it	O
,	O
v0.0.1	O
,	O
was	O
written	O
in	O
C++	B-Language
,	O
using	O
scim	B-Language
,	O
licensed	O
under	O
GPLv2	O
on	O
2	O
September	O
2009	O
.	O
</s>
<s>
Later	O
,	O
it	O
moved	O
to	O
iBus	B-Language
and	O
javascript	B-Language
for	O
its	O
Linux	B-Application
version	O
,	O
first	O
release	O
on	O
20	O
July	O
2012	O
,	O
under	O
MPL	B-License
.	O
</s>
<s>
Currently	O
,	O
the	O
JavaScript	B-Language
version	O
is	O
frozen	O
,	O
porting	O
is	O
under	O
way	O
to	O
Golang	B-Application
,	O
intended	O
to	O
be	O
released	O
in	O
next	O
major	O
release	O
.	O
</s>
<s>
The	O
macOS	B-Application
version	O
,	O
written	O
in	O
Objective-C	B-Language
,	O
was	O
released	O
on	O
15	O
December	O
2013	O
.	O
</s>
<s>
Avro	B-Application
Keyboard	I-Application
has	O
customizable	O
mode	O
switching	O
with	O
automatic	O
tracking	O
and	O
has	O
a	O
larger	O
field	O
of	O
compatibility	O
.	O
</s>
<s>
Both	O
Unicode	O
and	O
ANSI	O
support	O
:	O
Avro	B-Application
keyboard	I-Application
supports	O
writing	O
Bengali	O
text	O
in	O
both	O
Unicode	O
and	O
ANSI	O
.	O
</s>
<s>
Traditional	O
fixed	O
keyboard	O
layout-based	O
typing	O
:	O
Several	O
fixed	O
keyboard	O
layouts	O
like	O
Probhat	O
,	O
Jatiya	O
(	O
National	O
)	O
,	O
Bornona	O
,	O
Avro	O
Easy	O
,	O
Munir	O
Optima	O
are	O
provided	O
with	O
Avro	B-Application
keyboard	I-Application
software	O
to	O
write	O
Bengali	O
.	O
</s>
<s>
Spell	O
Check	O
on	O
the	O
fly	O
:	O
For	O
phonetic	O
typing	O
,	O
Avro	B-Application
keyboard	I-Application
provides	O
a	O
list	O
of	O
correct	O
word	O
on	O
the	O
fly	O
from	O
dictionary	O
based	O
on	O
the	O
typing	O
.	O
</s>
<s>
There	O
is	O
a	O
spell	O
checker	O
plug-in	B-Application
for	O
Microsoft	B-Application
Word	I-Application
.	O
</s>
<s>
Customizing	O
Keyboard	O
layout	O
:	O
New	O
Keyboard	O
layout	O
can	O
be	O
created	O
or	O
the	O
character	O
settlement	O
of	O
existing	O
keyboard	O
keys	O
can	O
be	O
rearranged	O
by	O
using	O
the	O
Avro	B-Application
keyboard	I-Application
layout	O
changer	O
which	O
can	O
be	O
distributed	O
and	O
adopted	O
like	O
plugins	B-Application
.	O
</s>
<s>
User	O
editable	O
dictionary	O
support	O
for	O
phonetic	O
typing	O
:	O
There	O
is	O
a	O
Bengali	O
dictionary	O
in	O
Avro	B-Application
keyboard	I-Application
for	O
automatic	O
correction	O
.	O
</s>
<s>
With	O
development	O
focus	O
solely	O
on	O
Avro	B-Application
Keyboard	I-Application
,	O
OmicronLab	O
has	O
discontinued	O
further	O
development	O
of	O
Avro	O
Converter	O
.	O
</s>
<s>
A	O
portable	O
edition	O
of	O
the	O
Avro	B-Application
keyboard	I-Application
for	O
Windows	B-Application
has	O
been	O
released	O
on	O
2	O
July	O
2007	O
.	O
</s>
<s>
The	O
layout	O
is	O
adopted	O
by	O
various	O
other	O
keyboard	O
software	O
including	O
Ridmik	O
keyboard	O
(	O
Android	B-Application
and	O
iOS	B-Application
)	O
,	O
Borno	O
keyboard	O
(	O
Android	B-Application
and	O
Windows	B-Application
)	O
,	O
OpenBangla	O
Keyboard	O
(	O
Linux	B-Application
)	O
and	O
others	O
.	O
</s>
<s>
It	O
was	O
also	O
used	O
in	O
Firefox	B-Operating_System
OS	I-Operating_System
for	O
Bengali	O
input	O
,	O
utilizing	O
its	O
JavaScript	B-Language
implementation	O
,	O
along	O
with	O
Probhat	O
layout	O
.	O
</s>
<s>
Avro	B-Application
Keyboard	I-Application
has	O
been	O
listed	O
as	O
useful	O
Bengali	O
computing	O
resource	O
by	O
the	O
Unicode	O
consortium	O
.	O
</s>
<s>
Bangladesh	O
Association	O
of	O
Software	O
and	O
Information	O
Services	O
has	O
given	O
the	O
'	O
Special	O
Contribution	O
to	O
IT	O
Award	O
2011	O
 '	O
to	O
Avro	O
team	O
for	O
Avro	B-Application
Keyboard	I-Application
Software	O
on	O
4	O
February	O
2011	O
.	O
</s>
<s>
There	O
is	O
a	O
keyboard	O
layout	O
,	O
named	O
UniBijoy	O
,	O
which	O
was	O
supplied	O
with	O
Avro	B-Application
Keyboard	I-Application
4.5.1	O
.	O
</s>
<s>
According	O
to	O
that	O
,	O
Dr.	O
Khan	O
removes	O
the	O
UniBijoy	O
keyboard	O
layout	O
from	O
Avro	B-Application
keyboard	I-Application
software	O
and	O
Jabbar	O
withdraws	O
the	O
allegation	O
of	O
copyright	O
violation	O
from	O
Bangladesh	O
copyright	O
office	O
by	O
20	O
August	O
2010	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
UniBijoy	O
keyboard	O
layout	O
was	O
removed	O
from	O
the	O
Avro	B-Application
Keyboard	I-Application
version	O
4.5.2	O
which	O
was	O
released	O
on	O
20	O
August	O
2010	O
.	O
</s>
