Michael's Bar Mitzvah

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My sister's son was Bar Mitzvah'd in San Francisco, where they lived.   

It was at about this time that the desktop computer was invented.  Does anyone remember the Z80 processor?  That's where the "80" in Radio Shack's "TRS80" came from.  That was, sort of, the 'grand daddy' of them all.  

At this point in time, no one had yet  heard the words "internet" or "laptop" or even "mouse" yet.