Hadoop moves data from the file system to memory and between nodes and back out again.

FORBES: Big Data Analyzed Fast In Memory -- For Finance, Online Dating, Home Shopping Network

But so will the addition of one megabyte of level 3 cache, as well as the Double Data Rate SDRAM memory with a 133-MHz system cache standard on all models.

FORBES: Powerbook Gets Faster, Again

New storage systems are increasing using flash memory for system acceleration, such as faster transaction processing and data base searches.

FORBES: A New Age of Digital Storage Interfaces