The DMD 5620 was an innovative graphical windowing terminal produced jointly by AT&T and Teletype Corp starting in 1984. It was a commercial product derived from earlier research work done by Rob Pike and Bart Locanthi Jr. at AT&T Bell Labs.
The DMD 5620 was often used with the AT&T 3B2 line of computers, so it felt appropriate to write a DMD terminal emulator to go along with my 3B2 emulator.
The emulator currently runs on macOS and Linux, with a Windows version planned for the future. The core is written in Rust; the Linux version uses GTK for its user interface.