<s>
is	O
a	O
Japanese	O
word	B-General_Concept
processor	I-General_Concept
produced	O
by	O
JustSystems	O
,	O
a	O
Japanese	O
software	O
company	O
.	O
</s>
<s>
Ichitaro	B-Application
occupies	O
the	O
second	O
share	O
in	O
Japanese	O
word-processing	B-General_Concept
software	O
,	O
behind	O
Microsoft	B-Application
Word	I-Application
.	O
</s>
<s>
Its	O
proprietary	B-Application
file	O
extension	O
is	O
"	O
.JTD	O
"	O
.	O
</s>
<s>
ATOK	B-Device
,	O
an	O
IME	B-General_Concept
developed	O
by	O
JustSystems	O
,	O
is	O
bundled	O
with	O
Ichitaro	B-Application
.	O
</s>
<s>
In	O
the	O
DOS	B-Device
era	O
,	O
Ichitaro	B-Application
had	O
a	O
considerable	O
market	O
share	O
along	O
with	O
other	O
rivals	O
.	O
</s>
<s>
However	O
,	O
as	O
Windows	B-Application
became	O
dominant	O
,	O
the	O
market	O
was	O
largely	O
taken	O
over	O
by	O
Microsoft	B-Application
Word	I-Application
.	O
</s>
<s>
Toshiba	O
released	O
in	O
February	O
1979	O
,	O
the	O
first	O
word	B-General_Concept
processor	I-General_Concept
for	O
the	O
Japanese	O
language	O
,	O
but	O
it	O
sold	O
less	O
than	O
their	O
business	O
computers	O
.	O
</s>
<s>
After	O
the	O
release	O
of	O
PC-8801	B-Device
,	O
they	O
developed	O
an	O
invoicing	O
software	O
for	O
it	O
,	O
which	O
printed	O
out	O
estimations	O
and	O
invoices	O
in	O
Japanese	O
.	O
</s>
<s>
When	O
they	O
contacted	O
to	O
ASCII	O
Microsoft	O
about	O
a	O
run-time	O
license	O
fee	O
of	O
the	O
BASIC	O
compiler	O
used	O
for	O
their	O
farm	O
management	O
software	O
,	O
ASCII	O
had	O
known	O
JustSystem	O
's	O
Japanese	O
software	O
,	O
so	O
they	O
asked	O
JustSystems	O
to	O
develop	O
a	O
Japanese	O
word	B-General_Concept
processor	I-General_Concept
software	O
for	O
PC-100	B-Device
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
JS-WORD	O
2.0	O
ported	O
for	O
PC-9801	B-Operating_System
.	O
</s>
<s>
The	O
jX-WORD	O
for	O
the	O
IBM	B-Device
JX	I-Device
was	O
released	O
and	O
in	O
1985	O
,	O
jX-WORD	O
Taro	O
was	O
released	O
for	O
PC-9801	B-Operating_System
.	O
</s>
<s>
jX-WORD	O
Taro	O
was	O
priced	O
at	O
58,000	O
yen	O
,	O
which	O
was	O
the	O
middle	O
price	O
among	O
Japanese	O
word	B-General_Concept
processor	I-General_Concept
software	O
,	O
and	O
sold	O
9,700	O
copies	O
.	O
</s>
<s>
The	O
same	O
year	O
,	O
Ichitaro	B-Application
was	O
released	O
as	O
its	O
definite	O
successor	O
.	O
</s>
<s>
Ichitaro	B-Application
's	O
system	O
disk	O
contained	O
ATOK	B-Device
4	O
and	O
a	O
runtime	O
version	O
of	O
MS-DOS	B-Application
2.11	O
.	O
</s>
<s>
It	O
allowed	O
users	O
to	O
use	O
other	O
MS-DOS	B-Application
applications	O
with	O
Japanese	O
language	O
support	O
.	O
</s>
<s>
It	O
gained	O
speed	O
from	O
being	O
written	O
in	O
assembly	B-Language
language	I-Language
and	O
natively	O
ran	O
on	O
PC-9801	B-Operating_System
,	O
but	O
Matsu	O
's	O
Japanese	O
input	B-General_Concept
method	I-General_Concept
could	O
n't	O
be	O
used	O
for	O
other	O
applications	O
.	O
</s>
<s>
Ichitaro	B-Application
had	O
plenty	O
of	O
typesettings	O
options	O
,	O
but	O
Matsu	O
did	O
not	O
.	O
</s>
<s>
Also	O
,	O
Matsu	O
was	O
priced	O
at	O
128,000	O
yen	O
before	O
Ichitaro	B-Application
came	O
out	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
Ichitaro	B-Application
has	O
shipped	O
29,000	O
copies	O
.	O
</s>
<s>
Ichitaro	B-Application
Ver.2	O
has	O
shipped	O
80,000	O
copies	O
.	O
</s>
<s>
Ichitaro	B-Application
Ver.3	O
was	O
the	O
first	O
version	O
ported	O
for	O
other	O
Japanese	O
DOS	B-Device
platforms	O
.	O
</s>
<s>
Total	O
shipments	O
of	O
Ichitaro	B-Application
reached	O
one	O
million	O
in	O
November	O
1991	O
.	O
</s>
<s>
Contrary	O
to	O
the	O
Japanese	O
personal	O
computer	O
market	O
expanding	O
into	O
beginners	O
,	O
Matsu	O
oriented	O
for	O
power	O
users	O
,	O
so	O
Ichitaro	B-Application
overtook	O
it	O
.	O
</s>
<s>
Ichitaro	B-Application
Ver.4	O
was	O
released	O
in	O
April	O
1989	O
.	O
</s>
<s>
It	O
had	O
a	O
proprietary	B-Application
operating	B-Application
environment	I-Application
called	O
,	O
like	O
Lotus	B-Application
Symphony	I-Application
.	O
</s>
<s>
ATOK	B-Device
7	O
was	O
bundled	O
with	O
Ichitaro	B-Application
4	O
,	O
and	O
was	O
available	O
as	O
a	O
standalone	O
product	O
in	O
1992	O
.	O
</s>
<s>
Microsoft	O
released	O
the	O
first	O
Japanese	O
version	O
of	O
Microsoft	B-Application
Word	I-Application
for	O
Windows	B-Application
in	O
1991	O
.	O
</s>
<s>
Four	O
years	O
passed	O
before	O
Ichitaro	B-Application
5	O
was	O
released	O
for	O
Japanese	O
DOS	B-Device
platforms	O
in	O
April	O
1993	O
.	O
</s>
<s>
The	O
next	O
month	O
,	O
Microsoft	O
released	O
the	O
Japanese	O
Windows	B-Application
3.1	I-Application
and	O
the	O
first	O
Japanese	O
version	O
of	O
Microsoft	B-Application
Office	I-Application
,	O
which	O
included	O
Word	O
5.0	O
and	O
Excel	B-Application
4.0	O
.	O
</s>
<s>
JustSystems	O
barely	O
completed	O
a	O
Windows	B-Application
adaptation	O
of	O
Ichitaro	B-Application
in	O
December	O
1993	O
,	O
but	O
Microsoft	O
took	O
over	O
the	O
market	O
dominated	O
by	O
Ichitaro	B-Application
and	O
Lotus	B-Application
1-2-3	I-Application
.	O
</s>
<s>
As	O
of	O
1997	O
,	O
a	O
Japanese	O
media	O
website	O
reported	O
that	O
64	O
percent	O
of	O
readers	O
using	O
Microsoft	B-Application
Word	I-Application
,	O
and	O
the	O
main	O
reason	O
was	O
that	O
they	O
used	O
it	O
in	O
offices	O
and	O
schools	O
.	O
</s>
<s>
The	O
rest	O
of	O
35	O
percent	O
were	O
using	O
Ichitaro	B-Application
,	O
and	O
the	O
main	O
reason	O
was	O
that	O
the	O
IME	B-General_Concept
of	O
ATOK	B-Device
was	O
convenience	O
.	O
</s>
<s>
In	O
1998	O
,	O
the	O
Japan	O
Fair	O
Trade	O
Commission	O
informed	O
Microsoft	O
of	O
an	O
unfair	O
trade	O
that	O
they	O
forced	O
personal	O
computer	O
manufacturers	O
to	O
bundle	O
with	O
Excel	B-Application
and	O
Word	O
against	O
the	O
request	O
of	O
a	O
bundle	O
with	O
Excel	B-Application
and	O
Ichitaro	B-Application
.	O
</s>
<s>
Ichitaro	B-Application
Ver.5	O
was	O
ported	O
to	O
the	O
Macintosh	B-Device
and	O
to	O
OS/2	B-Application
.	O
</s>
<s>
In	O
May	O
2003	O
,	O
the	O
release	O
of	O
a	O
Linux	B-Application
version	O
was	O
announced	O
.	O
</s>
<s>
Compact	O
versions	O
,	O
"	O
Ichitaro	B-Application
dash	O
"	O
and	O
"	O
Ichitaro	B-Application
lite	O
"	O
are	O
produced	O
for	O
laptop	B-Device
PCs	I-Device
.	O
</s>
<s>
"	O
Ichitaro	B-Application
smile	O
"	O
is	O
targeted	O
at	O
elementary	O
school	O
students	O
and	O
"	O
Ichitaro	B-Application
jump	O
"	O
at	O
middle	O
and	O
high	O
school	O
students	O
.	O
</s>
<s>
In	O
the	O
2010s	O
,	O
they	O
focus	O
on	O
correspondence	O
education	O
and	O
enterprise	O
software	O
although	O
Ichitaro	B-Application
and	O
ATOK	B-Device
continue	O
to	O
be	O
developed	O
.	O
</s>
<s>
Version	O
Release	O
Date	O
Notes	O
JS-WORD	O
October	O
1983	O
For	O
PC-100	B-Device
,	O
published	O
by	O
ASCII	O
under	O
their	O
nameJS-WORD	O
2.0May	O
1984For	O
PC-9800	B-Operating_System
series	I-Operating_System
,	O
published	O
by	O
ASCII	O
jX-WORD	O
December	O
1984	O
For	O
IBM	B-Device
JX	I-Device
series	O
jX-WORD	O
Taro	O
February	O
1985	O
For	O
PC-9800	B-Operating_System
series	I-Operating_System
1	O
28	O
August	O
1985	O
Allow	O
the	O
use	O
of	O
ATOK	B-Device
from	O
other	O
applications	O
2	O
May	O
1986	O
3	O
June	O
1987	O
No	O
disk	O
copy	O
protection	O
from	O
this	O
version	O
4	O
April	O
1989	O
Three	O
minor	O
versions	O
exist	O
,	O
4.1	O
,	O
4.2	O
,	O
and	O
4.3	O
5	O
April	O
1993	O
Mac	B-Device
version	O
released	O
in	O
July	O
1995	O
6	O
January	O
1995	O
Version	O
6.3	O
(	O
August	O
1995	O
)	O
included	O
internet	O
connectivity	O
7	O
September	O
1996	O
Windows	B-Application
95	I-Application
.	O
</s>
<s>
Dropped	O
support	O
for	O
Windows	B-Application
3.1	I-Application
8	O
February	O
1997	O
9	O
September	O
1998	O
All	O
versions	O
from	O
here	O
use	O
.jtd	O
extension	O
10	O
September	O
1999	O
11	O
February	O
2001	O
12	O
February	O
2002	O
Dropped	O
support	O
for	O
Windows	B-Application
95	I-Application
13	O
February	O
2003	O
14	O
February	O
2004	O
Ichitaro	B-Application
2004	O
15	O
February	O
2005	O
Ichitaro	B-Application
2005	O
16	O
February	O
2006	O
Ichitaro	B-Application
2006	O
17	O
9	O
February	O
2007	O
Ichitaro	B-Application
2007	O
.	O
</s>
<s>
Dropped	O
support	O
for	O
Windows	B-Application
98	O
and	O
Me	O
18	O
8	O
February	O
2008	O
Ichitaro	B-Application
2008	O
19	O
6	O
February	O
2009	O
Ichitaro	B-Application
2009	O
.	O
</s>
<s>
Windows	B-Device
7	I-Device
20	O
5	O
February	O
2010	O
Ichitaro	B-Application
2010	O
.	O
</s>
<s>
Dropped	O
support	O
for	O
Windows	B-Application
2000	O
21	O
10	O
February	O
2011	O
Ichitaro	B-Application
2011	O
22	O
10	O
February	O
2012	O
Ichitaro	B-Application
2012	O
23	O
8	O
February	O
2013	O
Ichitaro	B-Application
2013	O
.	O
</s>
<s>
DRM	O
activation	O
implemented	O
24	O
7	O
February	O
2014	O
Ichitaro	B-Application
2014	O
25	O
6	O
February	O
2015	O
Ichitaro	B-Application
2015	O
.	O
</s>
<s>
Dropped	O
support	O
for	O
Windows	B-Application
XP	O
26	O
5	O
February	O
2016	O
Ichitaro	B-Application
2016	O
27	O
3	O
February	O
2017	O
Ichitaro	B-Application
2017	O
.	O
</s>
<s>
In	O
2013	O
,	O
Symantec	O
revealed	O
that	O
Ichitaro	B-Application
had	O
the	O
potential	O
to	O
be	O
targeted	O
by	O
trojan	O
horse	O
programs	O
.	O
</s>
