Reference blog:
EMMC/NAND: embedded multi media card, ROM generally uses emmc and ufs, they also use nand flash chips, emmc and ufs generally only have one or very little flash
UFS: Univeral Flash Storage, which can be regarded as an advanced version of emmc. Generally, low-end machines use emmc, and high-end machines use ufs
SD card: Secure Digital Memory Card/SD card, the technology of SD memory card is developed from the MMC card format, and SDIO (SD Input/Output) card is developed on the basis of compatible SD memory card, usually SD, SDIO card Commonly known as SD memory card.
TF card: Trans-flash Card, Micro SD card is its latest name. NAND Flash chips are also used as the storage core. The small black memory card used to expand the memory of mobile phones in the past
RAM: running memory , can be divided into DRAM (Dynamic Random Access Memory), and SRAM (Static Random Access Memory)
SDRAM : (Synchronous Dynamic Random Access Memory) is a type of DRAM. SDRAM also includes DDR SDRAM, DDR2 SDRAM, and DDR3 SDRAM. What we usually call DDR is running memory
SRAM: The cache we generally refer to refers to SRAM. The cache can be divided into a first-level cache and a second-level cache. . .
ROM: storage memory , ROM (read-only memory) is generally divided into three types according to its content writing method: fixed content ROM; one-time programmable PROM; erasable ROM, and is divided into EPROM (ultraviolet erasable electrical writing) and EEPROM (Electrically Erase Electrically Write) and other types.
FLASH: flash is also a kind of ROM. It is a new generation of EEPROM. It is used as a removable disk for computers. The U disk in our daily life is flash
SIM: Subscriber Identification Module, which is what we usually call a mobile phone card