Internal components
- Arnold_V_specs - Arnold V (CPC+) Technical Specification
- I/O Port Summary - map of all known I/O ports of the CPC
- Serial interface - how to use the DART and 8253 chips of an Amstrad-compatible serial interface
- AY-3-8912 - Sound chip / keyboard controller
- CRTC - Video chip
- Gate Array - Custom chip (frequency generation, colors, bank switching)
- PIO - I/O controller