the `bootstrap_server.c` program has been compiled on the UNIX host, and the
UNIX host has a binary image ready for transfer to the PDP-11.
-Begin by loading the program contained in `client.txt` into the PDP-11 via the
+Begin by loading the program contained in `client.md` into the PDP-11 via the
frontpanel switches or ODT. Set the PDP-11's CPU registers as follows.
- **R0:** The starting memory address at which the binary image should be stored.
is transferred to the PDP-11.
Begin execution on the PDP-11. If the bootstrap program was loaded at the
-memory addresses listed in `client.txt`, begin execution at address `70000`.
+memory addresses listed in `client.md`, begin execution at address `70000`.
Initiate the transfer from the UNIX host with the command