Forth is fun language to work in.In college we had IBM paper teletypes on acoustic modems. The ones I used at GE in 1980 were VT102 terminals connected to a VAX 11/780. I wrote a VT100 emulator for the 8-bit Atari 800/400 and designed an RS232 interface for it to dial in from home. I ended up selling the hardware for $50 retail and put the terminal software in the public domain. I wrote it in "Forth", if anybody knows that language. It also had XMODEM/ZMODEM file transfer. I can't believe it's been 40+ years!