Adult Thriller. Analog Computer uses light, AI (artificial intelligence), mega rich on island, kind Dan Brown vibe. Read in 1990s.

[Fred]

Read this in the 90s, pretty sure it was a series. A reporter (I think, and perhaps the report is the lead in the other books) visits the island owned by a Billionaire who has built an analog computer that uses light instead of ones and zeros. Computer was in a series of caves. Think the computer becomes sentient, and the billionaire is nuts.

Its a thriller like Dan Brown, anything else I can remember is really sketchy.

[Angela]

Society of the Mind by Eric L. Harry?

[Fred]

Gee that sounds about right. Don't remember the protagonist being female, I will need to find a copy to scan and confirm. Cover search didn't ring any bells.

[Kris]

Amazon's "Look Inside" preview of Society of the Mind by Eric L. Harry - Angela's suggestion:
https://www.amazon.com/Society-Mind-E...

Google Books has a snippet preview. You might get lucky searching for keywords:
https://books.google.com/books?id=iTv...