Seth M. Price sprice623@aol.com This is a software simulation of the VT100 hardware. (There is also a VT52 simulation.) The original firmware ROM is built in and executed by an 8080 emulator. Other components include video display with character generator ROM, settings NVRAM, Intel 8251 USART, and a keyboard matrix scanner. The Advanced Video Option is not included. https://github.com/larsbrinkhoff/terminal-simulator/issues larsbrinkhoff/terminal-simulator