A small Z80 microcomputer with parallel (6 ports), dual serial I/O and 64K RAM with switchable 8K ROM. In the gerber directory you'll find the PCB files for building the Scrumpel-cube. In the schematics directory you'll find the schematics of the Scrumpel-cube. In the idecpm directory you'll find the CP/M source-code and in z80mon you'll find the ROM code. The documentation is still in progress, you will find it in the doc directory.