To-day, at my U3A computer lessons I learnt how to tell a #2 from a #3. I have already known for a couple of years that one is blue and the other is black, but today, my tutor told me that you don't look at the surface colour of the USB stick; "you look down the spout." ; in other words look for the color at the end. I am having trouble wording the last couple of sentences I have just written, and I am hoping some kind member will come up with better words to describe the end of a USB stick. I also notice that my hub has blue colors where you stick in a usb. Also, my lap top computer has black ports where you stick in a USB.
By the way-- U3A stands for University of the third age. Is there one in your town?