If you have a computer network at home or in the office, keeping a constant watch on its performance can be useful, educational, or just plain fun.
So if you fancy being a network manager, check out a great free program called Windows Health Monitor. It automatically monitors up to 10 computers, which can be Windows workstations (XP and above) or servers (2003 or 2008). Just supply a valid username and password for each one, and configuration is complete.
There's a choice of 2 views. The dials show the current stats for a chosen machine, including CPU loading, hard disk space, free memory, and so on. The dashboard view shows the 3 machines which are closest to being in need of your attention.
Windows Health Monitor is free, and a 2.5 MB download. It's also fully malware- and virus-free, according to VirusTotal. You can download it from http://www.manageengine.com/free-windows-health-monitor/free-windows-health-monitor-index.html.