A Memory device is a cell, circuit or media used to store, retain, and subsequently retrieve information. Memory devices can be semiconductor memory, CD/DVD, or magnetic tape/disk, and these are used to store data in electronic systems. Memory products include a variety of both volatile and non-volatile devices, covering new and mature technologies. Standard products include SRAM, DRAM, DDR, QDR, Flash, FRAM, PSRAM, PROM, EPROM, EEPROM, Hybrid Memory Cube (HMC), and Memory Tags.