Notes

Notes

1. "BLAST OFF SWITCH" (in the first section, pg. 4):???? It looks like a memory location to something.
2. Strowger switch with a bay of ASR-33s: A small telephone switch that called into a remote JOSS system. Likely used as a primitive modem.
3. cono 500,1; pulse the "joss here" flop: Pointed out by Daniel Bridgham.
4. Red/green output: Most, if not all, modern terminal emulators support colors.
5. Bootstraps. Normally there is a paper tape bootstrap at location 20. This is used to read in a paper tape with DECDMP, which can load and run files off a DECtape. When running JOSS, you first end up in DDT and type BEGIN$G to start.
6. There is a macro called TSX which expands to PUSHJ P,. TSX is an IBM 704 instruction.