1

Computer Memory

Primary Memory

RAM Random Access Memory - SRAM (Static RAM) - DRAM (Dynamic RAM) ROM (Read Only Memory) - PROM (Programable Read Only Memmory) - EPROM (Erasable Program Read Only Memory) -EEPROM (Electrically Erasable Programmable Read-only Memory) 

2

Computer Memory

Secondary Memory

SSD (Solid State Disk) HDD (Hard Disk Drive) CDD (Compact Disk Drive) DVD (Digital Versatile Disk) Pen Drive Magnetic Tap Magnetic Disk