Internet Resources for Chapter 18

Filters: Counting and Formatting

Filters

http://en.wikipedia.org/wiki/Filter_%28Unix%29

How Unix uses tabs

http://www.xmission.com/~comphope/unix/utabs.htm (tabs command)
http://www.opengroup.org/onlinepubs/009695399/utilities/stty.html
Setting tabs with ttty:
  For horizontal tabs, search for tab0; for vertical tabs, search for vt0

expand, unexpand

http://www.computerhope.com/unix/uexpand.htm

Formatting text: fold, fmt, pr

http://pangea.stanford.edu/computerinfo/unix/formatting/

Punch cards

http://en.wikipedia.org/wiki/Punch_card
  #Computer_programming_in_the_punch_card_era

http://www-db.stanford.edu/pub/voy/museum/pictures/
  display/2-2-ElecKeyPunch.htm

Herman Hollerith and his inventions

http://www.britannica.com/eb/article-9040802/Herman-Hollerith
http://www.britannica.com/eb/art-19206 (drawings of tabulator)
http://www.computer-museum.org/main/collections/hollerith.shtml

History of U.S. banknotes

http://en.wikipedia.org/wiki/United_States_one-dollar_bill
http://www.ronscurrency.com/rhist.htm

History of IBM

http://www-03.ibm.com/ibm/history/history/decade_1910.html

nanorc files

http://www.nano-editor.org/dist/v1.3/nano.html#Nanorc-Files

Line printers

http://en.wikipedia.org/wiki/Line_printer



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