A PDP-8 Program by Ward Cunningham
This Morse Code Encoder/Decoder would buffer both send and received data and display the size of the queues as a bar-graph in the computer's lights. Source code and documentation:
I wrote and used this PDP-8 simulator to assemble the program on a CDC6000 super computer. I've misplaced the assembler binary I ran on this simulator to assemble the above program. I've also lost the hardware diagnostics tape I used to debug the simulator.