<s>
S2	B-Language
Spreadsheet	I-Language
was	O
a	O
Lotus	B-Application
1-2-3	I-Application
compatible	O
spreadsheet	O
developed	O
by	O
IBM	O
in	O
1984	O
.	O
</s>
<s>
It	O
had	O
all	O
the	O
features	O
of	O
Lotus	B-Application
1-2-3	I-Application
,	O
plus	O
it	O
had	O
an	O
ability	O
to	O
connect	O
to	O
IBM	O
mainframes	O
via	O
TCP/IP	B-Protocol
and	O
pull	O
data	O
from	O
IBM	O
databases	O
such	O
as	O
IBM	B-Application
DB2	I-Application
and	O
IBM	B-Application
SQL/DS	I-Application
.	O
</s>
<s>
It	O
also	O
had	O
features	O
that	O
allowed	O
for	O
easy	O
visual	O
connection	O
between	O
formulas	O
and	O
their	O
dependencies	O
-	O
those	O
features	O
were	O
later	O
adopted	O
by	O
Lotus	B-Application
1-2-3	I-Application
and	O
Microsoft	B-Application
Excel	I-Application
.	O
</s>
<s>
In	O
1986	O
it	O
caused	O
a	O
legal	O
controversy	O
within	O
IBM	O
because	O
of	O
then	O
current	O
look-and-feel	O
lawsuits	O
between	O
Lotus	O
and	O
other	O
companies	O
,	O
and	O
most	O
importantly	O
because	O
IBM	O
was	O
negotiating	O
a	O
high-profile	O
deal	O
with	O
Lotus	O
to	O
market	O
Lotus	B-Application
1-2-3	I-Application
.	O
</s>
<s>
Vishnepolsky	O
however	O
lost	O
interest	O
in	O
further	O
development	O
of	O
S2	O
,	O
moved	O
to	O
another	O
project	O
and	O
later	O
authored	O
TCP/IP	B-Protocol
for	O
OS/2	B-Application
and	O
IBM	O
POS	O
terminals	O
.	O
</s>
<s>
S2	B-Language
spreadsheet	I-Language
got	O
ported	O
to	O
OS/2	B-Application
and	O
AIX	B-Application
by	O
other	O
developers	O
and	O
remained	O
in	O
use	O
through	O
the	O
90s	O
.	O
</s>
