The Siemens PC 100 was a version of the 6502-based “AIM-65” SBC in a case and with slightly modified ROMs. Siemens offered a set of German-language manuals, which included translated Assembler (MOS Resident Assembler) and BASIC (Microsoft BASIC) manuals, but also a general manual (“Bedienungsanleitung”).
This is the 1981/1982 version of the “Bedienungsanleitung”, describing the hardware and its interfaces, as well as the monitor, editor and BASIC software:
Hans Otten’s Retro Computing site has a lot more documentation, as well as ROM images. (This version of the manual was missing though, and has since been added.)
Siemens Personal Computer PC 100 Bedienungsanleitung, Ausgabe 1981/1982
(232 pages, 39 MB)
I found the section on the PC 100’s monitor and editor particularly fascinating—especially how it combined a simple text editor with a built-in BASIC interpreter in a way that felt both streamlined and powerful for its time. It’s impressive how much functionality was packed into such limited resources. I remember using a similar setup in the mid-80s with a ZX Spectrum, where the editor and BASIC were essentially one seamless environment. The way the PC 100’s manual explains that workflow step-by-step really highlights how much thought went into usability back then. It’s not just about the hardware—it’s the human interface design that feels surprisingly modern. This manual captures that spirit perfectly.