what does the info from uptime mean?

[Gaccm]

if you run the 'uptime' command it gives you three numbers which show 'load average.' what i'm wondering is what is 'load average'? is 100% cpu utilization = 1.00 load average? i currently get an output of ~1.2, so i really have no idea, and the man page really wasn't useful.

[Strike]

IIRC, the numbers are the average number of processes waiting on the CPU to be freed in the past 1, 5, and 10 minutes respectively.