You want to look inside? Here you are...
What you really want is ...
- a full CMM (component maintenance manual),
- a full system block diagram,
- enough system engineering knowledge to interpret the above.....
PS..... OK, that's a Concorde AFCS circuit board.
In those days, the "algoritms" were 'frozen' in op-amps, resistors and capacitors, and the logic was hard-wired using TTL and DTµL logic circuits.
The above photo is an analog control law computing board.
Here's where the logic is being dealt with...