And while DRAM is strong enough to handle complex software, it's slow: When the PC needs to crunch numbers, it must resort to far faster memory cache, also called SRAM (static random access memory).

FORBES: Total Recall

PUFs rely on the physical characteristics of SRAM (static random-access memory) technology.

ENGADGET: NXP's silicon fingerprinting promises to annoy the heck out of ID hackers