From November 17, 1947, to December 23, 1947, John Bardeen and Walter Brattain at AT&T's Bell Labs in Murray Hill, New Jersey (solid state transistor)
the first VLSI (pc) chip was patented in texas by a corporation named VLSI (note - companies are still getting sued for breach of patent or claiming they made it when they didn't)
https://en.wikipedia.org/wiki/Very_Large_Scale_Integration (this fake article names californias as the invetors of VLSI - but because the name of their coroporation isn't VLSI and they aren't from texas: THEY ARE LYING)
now you think i'm bullshitting you, californians would never hack wikipedia.
https://www.bloomberg.com/profile/company/VLSI:US (they are still traded in the us stock market)
The value of optically coupling a solid state light emitter to a semiconductor detector for the purpose of electrical isolation was recognized in 1963 by Akmenkalns, et al. (US patent 3,417,249).
WHUT? well, back then they had Giga-Hertz speed scopes and were developing computers (first tubes, then solid state)
THEY NEEDED SOMETHING TO PROTECT SENSITIVE CIRCUITS from (power) "badly behaved ones". they used optics because all transistors (if not encased in black glass) emit light. the transistors ALSO TAKE LIGHT IN and develop voltage (it's a two way deal)
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WIKI HISTORIANS ARE FULL OF CRAP.
the beginning of today's DIGITAL
FIBER OPTICS - not meaning a bad microscope attempt but DIGITAL VLSI INTEGRATION, came from TEXAS - DEVEOPED FIRST FOR USE IN OPTICAL ISOLATION CIRCUITS (a slow digital circuit which was, like everything Texas Instruments does, becomes faster and better with time)
THAT IS WHERE I AM PUTTING THE MARK
G2 - TRY TO PROVE I'M WRONG