[TUHS] Re: "9 skills our grandkids won't have" - Is this a TUHS topic?

["Nelson H. F. Beebe" <beebe@math.utah.edu>]

>> I don't know the answer to Ctrl-D.

The Unix command "man ascii" has the answer:

      Oct   Dec   Hex   Char                        Oct   Dec   Hex   Char
       ------------------------------------------------------------------------
       000   0     00    NUL '\0'                    100   64    40    @
       001   1     01    SOH (start of heading)      101   65    41    A
       002   2     02    STX (start of text)         102   66    42    B
       003   3     03    ETX (end of text)           103   67    43    C
       004   4     04    EOT (end of transmission)   104   68    44    D
      ....

Ctrl-D signifies end of transmission.  Some other O/Ses have used
Ctrl-Z for that purpose, presumably because Z is the final letter
of numerous alphabets.

There is a good book about the history of character sets (pre-Unicode)
in the book described at this URL:

	http://www.math.utah.edu/pub/tex/bib/master.html#Mackenzie:1980:CCS

Bob Bemer (1920--2004), known as Dr. ASCII to some of us, was a key
person in the standardization of character sets:

	https://en.wikipedia.org/wiki/Bob_Bemer
	https://en.wikipedia.org/wiki/ASCII

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- Nelson H. F. Beebe                    Tel: +1 801 581 5254                  -
- University of Utah                                                          -
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