- The Z80 CPU, using Ian Collier's Z80 core from xz80.
- The screen.
- The keyboard.
- The floppy disc controller - enough of it to support the Amstrad BIOS. Floppies are emulated with disc image files.
- The Centronics ports.
- The CPS8256 serial interface.
- The PCW8256 dot-matrix printer.
- The PCW9512 daisywheel printer.
- AMX or Kempston mice.
- The beeper.