Twin (windowing system)
Twin (acronym for "Textmode WINdow") is a windowing environment with mouse support, window manager, terminal emulator and networked clients, all inside a text mode display. Twin is tested on Linux (x86, PowerPC/Power ISA, DEC Alpha, SPARC), FreeBSD, and macOS. == History == Massimiliano Ghilardi started writing Twin in 1993 as his first big program for MS-DOS immediately after having learned the C programming language.