Systems that Murderbot interacts with (mention frequency count)
(Platform Decay spoilers, but not related to the plot)
I occasionally get the urge (?) to count frequencies of things in the Murderbot Diaries, enter them in a spreadsheet and stare at them.
Former rental SecUnits like Murderbot are designed to be able to interface with various systems, mainly SecSystems but also others. Since Murderbot had to survive as a rogue for so long before finding places and people that it could belong to, it's particularly adept at hacking, convincing, and controlling them. While it was a company unit, the systems it had daily interactions with were HubSystem, SecSystem, and MedSystem.
HubSystem appears to work like a central executive (rather like the one in the classic working memory model), monitoring and controlling SecUnits (and other constructs). It enforced obedience via governor modules. It also acted as a gateway to database when SecUnits had to look up some task-relevant information.
SecSystems are found in any place that requires security, monitoring through cameras, assessing risk/threat when something happens. Murderbot often seems to find them friendly and helpful. SecSystems and SecUnits probably have a natural, strong affinity.
MedSystem used to be something Murderbot used only when it was assisting its clients when they were injured. It sometimes gave instructions when its client wasn't close to a medical facility. It was only after meeting ART that it started using it for itself.
"Other" includes Central (aka AdaCol1) in Network Effect, AdaCol2 in System Collapse.
I didn't include targetControlSystem in Network Effect, as it wasn't a standard System.
These were the main systems that Murderbot regularly interacted with initially. But when it had to go to a place inhabited by groups of humans, it had to interact with multiple systems. There was a sharp increase in such 'other' systems in the latest book.
Barish-Estranza's proprietary model SecUnits like Three probably had never had the experience with interfacing with non-B-E systems. Also, they had a strange augmented human HubSystem which might work in a different way from standard corporate HubSystems. I'm actually quite curious as to why they opted to use augmented humans as their HubSystem.
