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

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 ------------------------------------------------------------------------------- - Nelson H. F. Beebe Tel: +1 801 581 5254 - - University of Utah - - Department of Mathematics, 110 LCB Internet e-mail: beebe(a)math.utah.edu - - 155 S 1400 E RM 233 beebe(a)acm.org beebe(a)computer.org - - Salt Lake City, UT 84112-0090, USA URL: http://www.math.utah.edu/~beebe/ - -------------------------------------------------------------------------------