Regarding the habit of using 2-digit years: in the November 1998
issue of COMPUTER Magazine (IEEE), Neville Holmes' article (p.121-122)
comments

  "...two-digit year encoding was adopted in the data-processing
  industry long before Konrad Zuse built his first digital computer
  in the 1930's. The data-processing industry didn't invent two-digit
  year encoding either: The practice was already widespread in the
  clerical industry. It's just a highly practical abbreviation that
  we use in everyday speech."

John Ehrman (ehrman@vnet.ibm.com)

    Source: geocities.com/heartland/oaks/5346/Literature

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