What is "z-ram"

Zero-capacitor (registered trademark, Z-RAM) is a dynamic random-access memory technology developed by Innovative Silicon (defunct) based on the floating body effect of silicon on insulator (SOI) process technology. Z-RAM has been licensed by Advanced Micro Devices for possible use in future microprocessors. Innovative Silicon claims the technology offers memory access speeds similar to the standard six-transistor static random-access memory cell used in cache memory but uses only a single transistor, therefore affording much higher packing densities.