I remember being excited about The Machine [1] from HP:
"The Machine will be a complete replacement for current computer system architectures. There will be a new operating system, a new type of memory (memristors), and super-fast buses/peripheral interconnects (photonics)."
"HP says it will commercialize The Machine within a few years, “or fall on its face trying.”"
It seems later happened...
[1] https://www.extremetech.com/extreme/184165-hp-bets-it-all-on...