If you look at a display of Wi-Fi signals in your area, you should find that they're all on channels 1, 6, and 11, but you probably won't because somebody misunderstands how the system works. Apple's operating system for notebooks and desktop systems is now called MacOS and a new version has some useful features -- but good luck getting the update file downloaded. In Short Circuits: I was reminded this week why everyone who uses a scanner should have a copy of VueScan. If it seems that USB is taking over all computer connectivity, that's not far from the truth. A quick look at some search strategies intended to keep your computer safe. In Spare Parts, only on the website: Get advance warning about flu outbreaks from your phone and a list of the ten most dangerous celebrities when it comes to internet searches.