I admit I have struggled often with understanding the Computer rules in Traveller over the years. My players tend to avoid them, too.
Regarding the Astrogon, which I am introducing into my campaign, there is a note that "As a non-sentient being, its independent Astrogation skill checks suffer DM-4...". I presume the rule for this DM is in the Robots book (which I don't have).
- Are there other DMs to skill checks for non-sentient beings/Ship's Brains, beyond self-repair?
- The Ship's Brain is listed as INT 12 and having Astrogation 2, so its modifiers to make an Astrogation check are +2 INT, +2 skill, -4 non-sentient = 0, correct?
- It could make Gunnery checks at +2 for skills, but no modifier for DEX?