I was able to obtain a number of documents that pertain to the Comstar System 4. I spoke about this computer in the past but I have scanned some documentation that should help explain this unique computer People who have been interested in the Intel 4004 might find this interesting The Comstar System 4 Reference Manual is rather detailed on the computer itself and it's applications This is the Complete Comstar System 4 Reference Manual https://archive.org/details/comstar-system-4-reference-manual_202507 Warner & Swasey Reference Manual https://archive.org/details/warner-swasey-comstar-star-system-reference Comstar System 4 Programming Manual https://archive.org/details/comstar-system-4-programming-manual Comstar System 4 Tester Manual https://archive.org/details/wscomstar-system-4-test-manual Comstar System 4 CPU Module Schematic https://archive.org/details/comstar-system-4-cpumodule Comstar System 4 Serial Communications Schematic https://archive.org/details/comstar-system-4-serial-communications Comstar Star System 4 RAM Module Schematic https://archive.org/details/comstar-star-system-4-rammodversion Comstar Star System 4 HTL I/O DATA Module Schematic https://archive.org/details/comstar-star-system-4-iodatamodule Comstar Star System 4 PROM Module Schematic https://archive.org/details/comstar-star-system-4-prommodule Comstar Star System 4 PROM 1k 2k Module Schematic https://archive.org/details/comstar-star-system-4-prom-1k-2k-module Warner & Swasey Comstar System 4 Process Control Language https://archive.org/details/wscomstar-system-4-pclref-manual Warner & Swasey Computer Division Comstar System 4 Machine Language / Assembly Language Reference Manual https://archive.org/details/wscomstar-system-4-assembly-language Comstar System 4 Program Analyzer Reference Manual https://archive.org/details/comstar-system-4-reference-manual Computer History Museum's Archive of the Manual https://www.computerhistory.org/collections/catalog/102686568 Comstar Computer Systems Process Control Language Data Sheet https://archive.org/details/comstar-star-pclcompiler-data-sheet