<s>
Lexicon	B-Application
was	O
a	O
text	B-Application
editor	I-Application
/	O
word	B-General_Concept
processor	I-General_Concept
MS-DOS	B-Application
program	O
that	O
was	O
extremely	O
popular	O
in	O
the	O
Soviet	O
Union	O
and	O
Russia	O
at	O
the	O
end	O
of	O
1980s	O
and	O
in	O
1990s	O
.	O
</s>
<s>
Some	O
estimate	O
that	O
Lexicon	B-Application
was	O
illegally	O
installed	O
on	O
95%	O
of	O
all	O
Russian	O
PCs	O
.	O
</s>
<s>
The	O
last	O
version	O
for	O
MS-DOS	B-Application
was	O
1.4	O
.	O
</s>
<s>
Later	O
Windows	B-Application
versions	O
were	O
developed	O
,	O
but	O
they	O
were	O
not	O
popular	O
,	O
due	O
to	O
easily	O
available	O
pirated	O
copies	O
of	O
Microsoft	B-Application
Word	I-Application
.	O
</s>
<s>
Lexicon	B-Application
was	O
originally	O
developed	O
at	O
the	O
Computing	O
Center	O
of	O
the	O
Academy	O
of	O
Sciences	O
of	O
the	O
USSR	O
by	O
Ye.N.Veselov	O
.	O
</s>
<s>
Lexicon	B-Application
could	O
produce	O
and	O
edit	O
plain	O
text	O
files	O
;	O
at	O
the	O
same	O
time	O
,	O
it	O
could	O
enrich	O
them	O
with	O
various	O
formatting	O
codes	O
(	O
which	O
all	O
started	O
with	O
the	O
character	O
255	O
(	O
0xFF	O
)	O
)	O
.	O
</s>
<s>
Lexicon	B-Application
also	O
included	O
a	O
spell	B-Application
checker	I-Application
.	O
</s>
<s>
Lexicon	B-Application
supported	O
operations	O
with	O
linear	O
and	O
rectangular	O
blocks	O
;	O
it	O
also	O
had	O
convenient	O
means	O
for	O
drawing	O
tables	O
with	O
box	O
drawing	O
characters	O
.	O
</s>
<s>
Lexicon	B-Application
could	O
work	O
with	O
both	O
osnovnaya	O
(	O
primary	O
)	O
and	O
alternativnaya	O
(	O
alternative	O
)	O
character	O
sets	O
.	O
</s>
