That does not compute

SOmething I don't miss. Back in the late 70s / early 80s, whenever somebody found out I was "into" computers, they thought it quite hilarious to put in their conversation, somewhere, the words "that does not compute" in a silly monotonic computer-like voice. Annoyed the hell out of me! Was it just me this happened to?! ;) This custom seemed to disappear in the mid 80s. Sometimes I get to thinking of the things that have changed, and when and why. Another example that comes to mind - I quite clearly remember about 10 years ago thinking how useless the tilde (~) was on a keyboard. Of course, now we are all net-bound it's used all the time. I wonder if there are other examples of ins/outs that you oldies remember and would care to share. Things that were ubiquitous and no longer with us. A