Emacs vs. Vi — What's the Difference?

Emacs or EMACS (Editor MACroS) is a family of text editors that are characterized by their extensibility. The manual for the most widely used variant, GNU Emacs, describes it as "the extensible, customizable, self-documenting, real-time display editor".

Vi (pronounced as distinct letters, ) is a screen-oriented text editor originally created for the Unix operating system. The portable subset of the behavior of vi and programs based on it, and the ex editor language supported within these programs, is described by (and thus standardized by) the Single Unix Specification and POSIX.The original code for vi was written by Bill Joy in 1976, as the visual mode for a line editor called ex that Joy had written with Chuck Haley.

(computing) Any implementation or reimplementation of Emacs.

(grammar) verb intransitive or intransitive verb (often in dictionaries)

The cardinal number that is the sum of five and one

More than 130 southeastern Virgin Islands; a dependent territory of the United States

Denoting a quantity consisting of six items or units