<s>
Performance	B-Device
Monitor	I-Device
(	O
known	O
as	O
System	B-Application
Monitor	I-Application
in	O
Windows	O
9x	O
,	O
Windows	B-Application
2000	I-Application
and	O
Windows	B-Application
XP	I-Application
)	O
is	O
a	O
system	B-Application
monitoring	I-Application
program	I-Application
introduced	O
in	O
Windows	B-Device
NT	I-Device
3.1	I-Device
.	O
</s>
<s>
It	O
monitors	O
various	O
activities	O
on	O
a	O
computer	O
such	O
as	O
CPU	O
or	O
memory	B-General_Concept
usage	I-General_Concept
.	O
</s>
<s>
In	O
Windows	O
9x	O
,	O
System	B-Application
Monitor	I-Application
is	O
not	O
installed	O
automatically	O
during	O
Windows	O
setup	O
,	O
but	O
could	O
be	O
installed	O
manually	O
using	O
the	O
Add/Remove	O
Programs	O
applet	O
,	O
located	O
in	O
the	O
Control	O
Panel	O
.	O
</s>
<s>
In	O
contrast	O
,	O
the	O
Windows	O
NT	O
Performance	B-Device
Monitor	I-Device
is	O
available	O
out-of-the-box	O
and	O
has	O
over	O
350	O
performance	O
measurement	O
criteria	O
(	O
called	O
"	O
counters	O
"	O
)	O
available	O
.	O
</s>
<s>
Performance	B-Device
Monitor	I-Device
can	O
display	O
information	O
as	O
a	O
graph	O
,	O
a	O
bar	O
chart	O
,	O
or	O
numeric	O
values	O
and	O
can	O
update	O
information	O
using	O
a	O
range	O
of	O
time	O
intervals	O
.	O
</s>
<s>
The	O
categories	O
of	O
information	O
that	O
can	O
be	O
monitored	O
depends	O
on	O
which	O
networking	O
services	O
are	O
installed	O
,	O
but	O
they	O
always	O
include	O
file	B-Application
system	I-Application
,	O
kernel	B-Operating_System
,	O
and	O
memory	B-General_Concept
manager	I-General_Concept
.	O
</s>
<s>
In	O
Windows	B-Application
2000	I-Application
,	O
the	O
System	B-Application
Monitor	I-Application
of	O
Windows	O
9x	O
and	O
the	O
Performance	B-Device
Monitor	I-Device
of	O
Windows	O
NT	O
4	O
and	O
earlier	O
,	O
as	O
well	O
as	O
another	O
program	O
called	O
Network	O
Monitor	O
,	O
were	O
merged	O
into	O
a	O
Microsoft	B-Application
Management	I-Application
Console	I-Application
(	O
MMC	O
)	O
plug-in	B-Application
called	O
Performance	O
,	O
which	O
consisted	O
of	O
two	O
parts	O
:	O
"	O
System	B-Application
Monitor	I-Application
"	O
and	O
"	O
Performance	O
Logs	O
and	O
Alerts	O
"	O
.	O
</s>
<s>
The	O
"	O
System	B-Application
Monitor	I-Application
"	O
naming	O
was	O
kept	O
in	O
Windows	B-Application
XP	I-Application
.	O
</s>
<s>
Some	O
third-party	O
publications	O
referred	O
to	O
it	O
as	O
"	O
Performance	B-Device
Monitor	I-Device
"	O
however	O
,	O
even	O
in	O
Windows	B-Application
2000	I-Application
or	O
XP	B-Application
contexts	O
.	O
</s>
<s>
The	O
name	O
displayed	O
inside	O
the	O
MMC	O
plug-in	B-Application
was	O
changed	O
back	O
to	O
"	O
Performance	B-Device
Monitor	I-Device
"	O
in	O
Windows	B-Application
Vista	I-Application
,	O
although	O
it	O
was	O
also	O
bundled	O
with	O
a	O
Reliability	O
Monitor	O
and	O
with	O
a	O
new	O
performance	O
summary	O
feature	O
called	O
Resource	O
Overview	O
.	O
</s>
<s>
In	O
Windows	B-Device
7	I-Device
,	O
the	O
resource	O
overview	O
feature	O
was	O
split	O
to	O
a	O
stand-alone	O
Resource	B-Device
Monitor	I-Device
application	O
,	O
with	O
the	O
landing	O
page	O
for	O
the	O
Performance	B-Device
Monitor	I-Device
in	O
Windows	B-Device
7	I-Device
containing	O
a	O
pointer	O
to	O
the	O
(	O
new	O
)	O
Resource	B-Device
Monitor	I-Device
;	O
Windows	B-Device
7	I-Device
also	O
moved	O
the	O
Reliability	O
Monitor	O
to	O
the	O
Action	O
Center	O
.	O
</s>
<s>
A	O
new	O
feature	O
added	O
to	O
the	O
Performance	B-Device
Monitor	I-Device
in	O
Windows	B-Application
Vista	I-Application
is	O
Data	O
Collector	O
Set	O
,	O
which	O
allows	O
sets	O
of	O
accounting	O
parameters	O
to	O
be	O
easily	O
manipulated	O
as	O
a	O
group	O
.	O
</s>
