http://www.macnn.com/articles/02/06/26/freeware.util/
Freeware util offers system monitoring
updated 09:35 am EDT, Wed June 26, 2002
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Grafboard is a freeware OS X utility that provides a readout of system performance data via a series of real-time graphs. Areas monitored include CPU load metrics, memory statistics, network bandwidth, and disk I/O operations. The user can select how many graphs to display, the color for each graph, and which metric each graph displays.
