CPU-4 is a 6502 SBC based upon the TIM 6530-004. Developed for teaching on the Technical University Eindhoven.
The only surviving part of the system is a 40 page Dutch manual.
Described are the function of TIM, Tiny Basic and Resident Assembler Program, same as the Jolt and Superjolt.

Dutch manual of RC41523 CPU-4

Some excerpts from the manual:

See also:

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