I found some fischertechnik broschures and photos before but now found a site with manuals, German/English.
There are old and new kits. Robots, plotters, sorting machines, Towers of Hanoi etc. The Pneumatic system (collaboration with Festo is not computerized).
traffic lights and other kits manual
My favourite is the traffic light kit (with and without pedestrian button). I wondered how they are programmed. It’s in BASIC.
But main routines are in machine language/assembler SYS/USR and the instructions are in the interface manuals of that home computer.
The main control of the motors (and lights) depending on the kit can be turned on, off, or left, right, like SYS M1, EIN.
Another old kit (1984-1991) is the PLC-style Lucky Logic (later LL), available for DOS and Windows.
There are 2 Electronics and Digital kits under tab Hobby kits.
The modern kits starting at 1989. Many robots. The last is micro:bit (2019).
One interesting kit is the Universal Interface (1991-1996) for PC, Amiga, Atari ST also supporting Lucky Logic. Using a 80C32 CPU.
There are also modern traffic light kits like controlled by Arduino and a crossing with a full set of traffic lights.
Here is a modern software including sources