STRUCTURE
---------
[-] address space
    [*] ROM location
    [*] RAM location
    [ ] I/O space
        [ ] serial
        [ ] port interface
        [ ] timer
        [ ] keyboard
[ ] pcb size (eurocard?)
[ ] ram pages
    [ ] system page
    [ ] user space

HARDWARE
--------
[?] bus buffering
[*] ROM
[*] RAM
[*] primary clock (4MHz)
[*] secondary clock (200Hz)
[*] stepper button
[*] reset circuit
[*] serial circuit
    [*] usart
    [*] transceiver
[*] digital port interface
[*] timer(s)
[*] extension connector
[*] address and data visualizer (7SEG display)
[ ] address decoder
[ ] interrupt priorities
[ ] keyboard driver
[ ] display adapter
[ ] PCB layout

SOFTWARE
--------
[ ] bootloader
[ ] command interpreter
[ ] program loader
[ ] address editor
[ ] NVRAM eraser
[ ] data dump/copy
[ ] basic kernel
[ ] C compiler ?