File list (Check if you may need any files):
Keyboard_89C2051\AT892051.H
................\Keyboard
................\Keyboard.hex
................\Keyboard.lnp
................\Keyboard.M51
................\Keyboard.Opt
................\Keyboard.plg
................\Keyboard.Uv2
................\Keyboard_Opt.Bak
................\Keyboard_Uv2.Bak
................\KEYCODE.H
................\MAIN.C
................\Main.LST
................\Main.OBJ
................\REG51.H
................\STDIO.H
Keyboard_89C2051