The author missed one: Wordstar See pg. 39 of this .pdf file http://bitsavers.trailing-edge.com/pdf/microPro/Wordstar_3.3/Wordstar_3.3_Reference_Manual_1983.pd

The author missed one: Wordstar See pg. 39 of this .pdf file http://bitsavers.trailing-edge.com/pdf/microPro/Wordstar_3.3/Wordstar_3.3_Reference_Manual_1983.pdf http://bitsavers.trailing-edge.com/pdf/microPro/Wordstar_3.3... "X" is used as the "exit wordstar" command menu option. This was WordStar 3.3, in 1983. WordStar existed for far earlier than 1983, and likely always used "X" as the "exit wordstar" command.