So, this chick that works in Tech Support with us, let’s call her Elaine, is doing training, and telling all the students what to do in case of a “one-zero” error. We pulled her aside to explain that that actually said I/O error (as in Input/Output) but she continued on with her teaching, explaining that it had to be a “one-zero” error, since computers communicate in binary code, so everything had to be either a 1 or a 0. I think its obvious who “1” and who is a “zero.” Duh!