L3 refers to level three cache, RAM is main memory (with its associated speed) and secondary refers to auxiliary storage such as a hard disk drive or a solid state drive. ORIBI writes a record to disk with the results of each calculation, so if 10,000,000 calculations are done there will be ten billion writes to the auxiliary storage. 

 

Name	L3	RAM	Speed	Secondary
Netbook	0	1024 Mb DDR2	665 MHz	136 Gb HDD
Tablet	0	2048 Mb DDR2	665 MHz	60 Gb SSD
Desktop	0	4096 Mb DDR3	532 Mhz	582 Gb HDD
Win 7 Ultra	3072 Kb	4096 Mb DDR3	665 MHz	111 Gb SSD
Win 8 Ultra	4096 Kb	4096 Mb DDR3	665 MHz	159 Gb SSD