Oldest software rivalry: Emacs and Vi, two text editors used by programmers.
An early Emacs manual cover from 1981.
Courtesy of GNU Emacs
In a world where both software and hardware frequently become obsolete right on release, two rival programs can stake a claim to being among the longest-lived applications of all time. Both programs are about to enter their fifth decades. Both programs are text editors, for inputting and editing code, data files, raw HTML Web pages, and anything else. And they are mortal enemies.
Their names are Emacs and Vi (styled by programmers as “vi”).
Fri May 9 12:05:48 2014 - permalink -
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http://www.slate.com/articles/technology/bitwise/2014/05/oldest_software_rivalry_emacs_and_vi_two_text_editors_used_by_programmers.html