The 3D nanoscale optical disk memory technology builds on this foundation. The breakthrough heralds a new era of data storage efficiency and accessibility, with applications ranging from big ...

USB drives and optical discs are also storage. Memory is made up of "random access memory" (RAM) chips, which are upgradable by the user in a desktop computer but not in a phone or tablet.

Alternatively, byte capacity estimates for a next-gen 120mm optical disc would have been welcome. For now, the boast of “ultra-high-density optical memory” is all we get.