<s>
Windows	B-Application
2.0	I-Application
is	O
a	O
major	O
release	O
of	O
Microsoft	B-Application
Windows	I-Application
,	O
a	O
family	O
of	O
graphical	B-Application
operating	B-General_Concept
systems	I-General_Concept
for	O
personal	B-Device
computers	I-Device
developed	O
by	O
Microsoft	O
.	O
</s>
<s>
It	O
was	O
released	O
to	O
manufacturing	O
on	O
December	O
9	O
,	O
1987	O
,	O
as	O
a	O
successor	O
to	O
Windows	B-Application
1.0	I-Application
.	O
</s>
<s>
The	O
product	O
includes	O
two	O
different	O
variants	O
,	O
a	O
base	O
edition	O
for	O
8086	B-General_Concept
real	B-Application
mode	I-Application
,	O
and	O
Windows/386	O
,	O
an	O
enhanced	O
edition	O
for	O
i386	B-General_Concept
protected	B-Application
mode	I-Application
.	O
</s>
<s>
Windows	B-Application
2.0	I-Application
differs	O
from	O
its	O
predecessor	O
by	O
allowing	O
users	O
to	O
overlap	O
and	O
resize	O
application	O
windows	O
,	O
while	O
the	O
operating	B-Application
environment	I-Application
also	O
introduced	O
desktop	O
icons	O
,	O
keyboard	O
shortcuts	O
,	O
and	O
support	O
for	O
16-color	O
VGA	B-Protocol
graphics	I-Protocol
.	O
</s>
<s>
It	O
also	O
introduced	O
Microsoft	B-Application
Word	I-Application
and	O
Excel	B-Application
,	O
and	O
integrated	O
the	O
Control	O
Panel	O
.	O
</s>
<s>
Noted	O
as	O
an	O
improvement	O
of	O
its	O
predecessor	O
,	O
Microsoft	B-Application
Windows	I-Application
gained	O
more	O
sales	O
and	O
popularity	O
after	O
the	O
release	O
of	O
the	O
operating	B-Application
environment	I-Application
,	O
although	O
it	O
is	O
also	O
considered	O
to	O
be	O
the	O
incarnation	O
that	O
remained	O
a	O
work	O
in	O
progress	O
.	O
</s>
<s>
The	O
operating	B-Application
environment	I-Application
was	O
succeeded	O
by	O
Windows	B-Application
2.1	I-Application
in	O
May	O
1988	O
,	O
while	O
Microsoft	O
ended	O
its	O
support	O
on	O
December	O
31	O
,	O
2001	O
.	O
</s>
<s>
The	O
operating	B-Application
environment	I-Application
came	O
in	O
two	O
different	O
variants	O
with	O
different	O
names	O
and	O
CPU	B-General_Concept
support	O
.	O
</s>
<s>
The	O
basic	O
edition	O
supported	O
the	O
8086	B-General_Concept
mode	O
of	O
the	O
80386	B-General_Concept
microprocessor	O
.	O
</s>
<s>
Despite	O
its	O
configuration	O
,	O
the	O
variant	O
was	O
fully	O
operational	O
on	O
an	O
8088	B-Device
or	O
8086	B-General_Concept
processor	O
,	O
although	O
the	O
high	B-Device
memory	I-Device
area	I-Device
would	O
not	O
be	O
available	O
on	O
an	O
8086-class	O
processor	O
;	O
however	O
,	O
expanded	B-Device
memory	I-Device
could	O
still	O
be	O
used	O
.	O
</s>
<s>
IBM	O
's	O
PS/2	B-Device
Model	I-Device
25	I-Device
,	O
which	O
had	O
an	O
option	O
to	O
ship	O
with	O
a	O
"	O
DOS	O
4.00	O
and	O
Windows	O
kit	O
"	O
for	O
educational	O
markets	O
,	O
shipped	O
Windows	O
with	O
8086	B-General_Concept
hardware	O
.	O
</s>
<s>
The	O
basic	O
edition	O
would	O
be	O
later	O
renamed	O
to	O
Windows/286	O
with	O
the	O
release	O
of	O
Windows	B-Application
2.1	I-Application
in	O
1988	O
.	O
</s>
<s>
The	O
other	O
variant	O
,	O
named	O
Windows/386	O
,	O
was	O
available	O
as	O
early	O
as	O
September	O
1987	O
,	O
pre-dating	O
the	O
release	O
of	O
Windows	B-Application
2.0	I-Application
in	O
December	O
1987	O
.	O
</s>
<s>
It	O
introduced	O
a	O
protected	B-Application
mode	I-Application
kernel	O
,	O
above	O
which	O
the	O
GUI	B-Application
and	O
applications	O
run	O
as	O
a	O
virtual	B-Application
8086	I-Application
mode	I-Application
task	O
.	O
</s>
<s>
The	O
variant	O
had	O
fully	O
preemptive	O
multitasking	O
,	O
and	O
allowed	O
several	O
MS-DOS	B-Application
programs	O
to	O
run	O
in	O
parallel	O
in	O
"	O
virtual	O
8086	B-General_Concept
"	O
CPU	B-General_Concept
mode	O
,	O
rather	O
than	O
always	O
suspending	O
background	O
applications	O
.	O
</s>
<s>
Windows/386	O
also	O
provided	O
EMS	O
emulation	O
,	O
using	O
the	O
memory	O
management	O
features	O
of	O
the	O
i386	B-General_Concept
to	O
make	O
RAM	B-Architecture
beyond	O
640k	O
behave	O
like	O
the	O
banked	O
memory	O
previously	O
only	O
supplied	O
by	O
add-in	O
cards	O
and	O
used	O
by	O
popular	O
DOS	O
applications	O
.	O
</s>
<s>
There	O
was	O
no	O
support	O
for	O
disk-based	O
virtual	B-Architecture
memory	I-Architecture
,	O
so	O
multiple	O
DOS	O
programs	O
had	O
to	O
fit	O
inside	O
the	O
available	O
physical	O
memory	O
.	O
</s>
<s>
Users	O
could	O
run	O
more	O
applications	O
on	O
the	O
386	B-General_Concept
version	O
.	O
</s>
<s>
Neither	O
of	O
these	O
versions	O
worked	O
with	O
DOS	B-General_Concept
memory	I-General_Concept
managers	I-General_Concept
like	O
CEMM	B-Device
or	O
QEMM	B-Device
or	O
with	O
DOS	B-Device
extenders	I-Device
,	O
which	O
have	O
their	O
own	O
extended	O
memory	O
management	O
and	O
run	O
in	O
protected	B-Application
mode	I-Application
as	O
well	O
.	O
</s>
<s>
This	O
was	O
remedied	O
in	O
version	O
3.0	O
,	O
which	O
is	O
compatible	O
with	O
Virtual	O
Control	O
Program	O
Interface	O
(	O
VCPI	O
)	O
in	O
"	O
standard	O
mode	O
"	O
and	O
with	O
DOS	O
Protected	B-Application
Mode	I-Application
Interface	O
(	O
DPMI	O
)	O
in	O
"	O
386	B-General_Concept
enhanced	O
"	O
mode	O
.	O
</s>
<s>
Microsoft	O
ended	O
its	O
support	O
for	O
Windows	B-Application
2.0	I-Application
on	O
December	O
31	O
,	O
2001	O
.	O
</s>
<s>
Unlike	O
its	O
predecessor	O
,	O
Windows	B-Application
2.0	I-Application
allows	O
the	O
user	O
to	O
overlap	O
and	O
resize	O
application	O
windows	O
.	O
</s>
<s>
It	O
has	O
also	O
introduced	O
desktop	O
icons	O
,	O
keyboard	O
shortcuts	O
,	O
and	O
the	O
terminology	O
"	O
minimize	O
"	O
and	O
"	O
maximize	O
"	O
,	O
as	O
opposed	O
to	O
"	O
iconize	O
"	O
and	O
"	O
zoom	O
"	O
which	O
was	O
used	O
in	O
Windows	B-Application
1.0	I-Application
.	O
</s>
<s>
Support	O
for	O
16-color	O
VGA	B-Protocol
graphics	I-Protocol
,	O
EMS	B-Device
memory	I-Device
,	O
and	O
new	O
capabilities	O
of	O
the	O
i386	B-General_Concept
CPU	B-General_Concept
in	O
some	O
versions	O
were	O
also	O
added	O
.	O
</s>
<s>
Windows	B-Application
2.0	I-Application
is	O
the	O
last	O
version	O
of	O
Windows	O
that	O
ran	O
solely	O
on	O
floppy	B-Device
disks	I-Device
.	O
</s>
<s>
The	O
operating	B-Application
environment	I-Application
is	O
shipped	O
with	O
fifteen	O
programs	O
,	O
and	O
it	O
also	O
introduced	O
graphical	B-Application
programs	O
Microsoft	B-Application
Word	I-Application
and	O
Excel	B-Application
,	O
to	O
compete	O
against	O
the	O
then-reigning	O
competitors	O
WordPerfect	B-Application
and	O
Lotus	B-Application
1-2-3	I-Application
.	O
</s>
<s>
Software	O
such	O
as	O
the	O
Aldus	B-Operating_System
Pagemaker	I-Operating_System
and	O
CorelDRAW	B-Application
were	O
also	O
developed	O
for	O
Windows	B-Application
2.0	I-Application
.	O
</s>
<s>
The	O
system	O
files	O
WINOLDAP.MOD	O
and	O
WINOLDAP.GRB	O
are	O
used	O
to	O
run	O
MS-DOS	B-Application
programs	O
.	O
</s>
<s>
IBM	O
licensed	O
Windows	O
's	O
GUI	B-Application
for	O
OS/2	O
as	O
Presentation	B-Device
Manager	I-Device
,	O
and	O
the	O
two	O
companies	O
stated	O
that	O
it	O
and	O
Windows	B-Application
2.0	I-Application
would	O
be	O
almost	O
identical	O
.	O
</s>
<s>
The	O
official	O
system	O
requirements	O
for	O
Windows	B-Application
2.0	I-Application
include	O
the	O
following	O
.	O
</s>
<s>
Windows	B-Application
2.0	I-Application
was	O
dependent	O
on	O
the	O
DOS	O
system	O
and	O
random-access	B-Architecture
memory	I-Architecture
was	O
restricted	O
to	O
a	O
maximum	O
of	O
1	O
MB	O
due	O
to	O
running	O
in	O
real	B-Application
mode	I-Application
.	O
</s>
<s>
Windows	B-Application
2.0	I-Application
is	O
considered	O
to	O
be	O
an	O
incremental	O
improvement	O
of	O
its	O
predecessor	O
,	O
but	O
still	O
a	O
work	O
in	O
process	O
.	O
</s>
<s>
Due	O
to	O
its	O
improvements	O
,	O
Microsoft	B-Application
Windows	I-Application
gained	O
more	O
popularity	O
after	O
its	O
release	O
and	O
its	O
interface	O
was	O
considered	O
to	O
be	O
easier	O
to	O
manage	O
.	O
</s>
<s>
Stewart	O
Alsop	O
II	O
predicted	O
in	O
January	O
1988	O
that	O
"	O
Any	O
transition	O
to	O
a	O
graphical	B-Application
environment	I-Application
on	O
IBM-style	O
machines	O
is	O
bound	O
to	O
be	O
maddeningly	O
slow	O
and	O
driven	O
strictly	O
by	O
market	O
forces	O
"	O
,	O
because	O
the	O
GUI	B-Application
had	O
"	O
serious	O
deficiencies	O
"	O
and	O
users	O
had	O
to	O
switch	O
to	O
DOS	O
for	O
many	O
tasks	O
.	O
</s>
<s>
CNET	O
considered	O
that	O
Windows	B-Application
2.0	I-Application
"	O
was	O
n't	O
much	O
better	O
than	O
Windows	B-Application
1.0	I-Application
"	O
.	O
</s>
<s>
BYTE	B-Application
magazine	O
listed	O
the	O
variant	O
as	O
among	O
the	O
"	O
distinction	O
"	O
winner	O
of	O
the	O
BYTE	B-Application
Awards	O
in	O
1989	O
,	O
describing	O
it	O
as	O
a	O
"	O
serious	O
competition	O
for	O
OS/2	O
"	O
as	O
it	O
"	O
taps	O
into	O
the	O
power	O
of	O
the	O
80386	B-General_Concept
"	O
.	O
</s>
<s>
The	O
operating	B-Application
environment	I-Application
cost	O
$99	O
.	O
</s>
<s>
Sales	O
of	O
Microsoft	B-Application
Windows	I-Application
reached	O
one	O
million	O
in	O
1988	O
,	O
and	O
by	O
January	O
1990	O
,	O
it	O
had	O
reached	O
less	O
than	O
two	O
million	O
,	O
although	O
Windows	B-Application
2.0	I-Application
was	O
not	O
widely	O
used	O
.	O
</s>
<s>
It	O
was	O
succeeded	O
by	O
Windows	B-Application
2.1	I-Application
,	O
which	O
was	O
released	O
in	O
the	O
United	O
States	O
and	O
Canada	O
in	O
May	O
1988	O
.	O
</s>
<s>
On	O
March	O
17	O
,	O
1988	O
,	O
Apple	O
Inc	O
.	O
filed	O
a	O
lawsuit	O
against	O
Microsoft	O
and	O
Hewlett-Packard	O
,	O
accusing	O
them	O
of	O
violating	O
copyrights	O
Apple	O
held	O
on	O
the	O
Macintosh	B-Application
System	I-Application
Software	I-Application
.	O
</s>
<s>
Apple	O
claimed	O
the	O
"	O
look	B-Application
and	I-Application
feel	I-Application
"	O
of	O
the	O
Macintosh	B-Application
operating	I-Application
system	I-Application
,	O
taken	O
as	O
a	O
whole	O
,	O
was	O
protected	O
by	O
copyright	O
and	O
that	O
Windows	B-Application
2.0	I-Application
violated	O
this	O
copyright	O
by	O
having	O
the	O
same	O
icons	O
.	O
</s>
<s>
The	O
judge	O
ruled	O
in	O
favor	O
of	O
Hewlett-Packard	O
and	O
Microsoft	O
on	O
all	O
but	O
10	O
of	O
the	O
189	O
graphical	B-Application
user	I-Application
interface	I-Application
elements	O
on	O
which	O
Apple	O
sued	O
,	O
and	O
the	O
court	O
found	O
the	O
remaining	O
10	O
GUI	B-Application
elements	O
could	O
not	O
be	O
copyrighted	O
.	O
</s>
