Using Windows 7 ? Here’s a look at a great new way to monitor your computer. Windows 7 beta has a new application called Resource and Performance monitor which allows you to completely monitor your computer, from the most basic information to the most detailed processes. You can take a glance at everything from the small yet powerful application.
Go launch Resource and Performance monitor, goto: Control Panel -> All Control Panel Items -> Performance Information and Tools -> Advanced Tools
Here are some screenshots (Click to enlarge):