Emacs

Uncommon card · No. 79947

Emacs ( ), originally named EMACS (an acronym for "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". Development of the first Emacs began in the mid-1970s, and work on GNU Emacs, directly descended from the original, is ongoing; its latest version is 31.1 , released 24 August 2026. Emacs has over 10,000 built-in commands and its user interface allows the user to combine these commands into macros to automate work. Implementations of Emacs typically feature a dialect of the Lisp programming language, allowing users and developers to write new commands and applications for the editor. Extensions have been written to, among other things, manage files, remote access, e-mail, outlines, multimedia, Git integration, RSS feeds, and collaborative editing, as well as implementations of ELIZA, Pong, Conway's Life...

Read on Wikipedia · Image Software: Massachusetts Institute of Technology, Bull HN Information Systems, Inc., Bernard Greenberg, Bull SAS, and The DPS8M Developer Team Screenshot: VulcanSphere, Public domain