So my question is the title, I'm not doing anything out of the ordinary, just surfing the internet with google chrome, listening to music, and maybe having a pages document open, and my CPU usage will suddenly go up to around 100% and the computer will be unresponsive for a minute or two until it goes back to normal. I've tried looking in activity monitor but can't find anything that is using the CPU that much. I've attached a screenshot of activity monitor when this happens and hopefully that can help. Also this is on a 1.86 Ghz Macbook air, rev B with SSD.
