### DT-1 Terminal

The TRS-80 DT-1 (Data Terminal 1) is not a computer but a terminal and as such can do very little without being connected to a computer. It does have a built-in SET-UP screen that needs the DT-1 User's Manual to be understood. Do note that you must press Page-Up on trs80gp to access the setup screen as Ctrl+Shift+Enter will not work. And if you're in the setup screen use Page-Down to show "KL" on the screen rather than pressing Ctrl+Shift-4. Since it has no obvious purpose, the "KL" display is assumed to be an easter egg. Perhaps the initials of the firmware programmer.

The trs80gp Setup menu provides all the functionality of the DT-1 SET-UP screen in a somewhat more descriptive format. It will also change the SET-UP screen if you're in it so you can learn the cryptic settings. Use Setup → Duplex → Half to put the DT-1 into a mode where you will see each character you type. If you're feeling really adventurous type `<ESC>G2Blinking<ESC>G0text` to see some blinking text.

trs80gp's DT-1 emulation is missing a few features of the original. There's no way to attach a printer, not all input keycodes can be generated, there's no half-intensity text mode and no beep. If you have a real DT-1 please get in touch as a few tests could go along way to implementing the missing features.