According to the functional division, it can be divided into four types, mainly memory chips, microprocessors, standard chips and complex system-on-chip (SoCs).
According to the type of integrated circuit, it can be divided into three categories, which are digital chips, analog chips and hybrid chips.
From a functional point of view, semiconductor memory chips store data and programs on computers and data storage devices. A random access memory (RAM) chip provides a temporary workspace, while a flash memory chip can hold information permanently unless it is actively deleted. Read-only memory (ROM) and programmable read-only memory (PROM) chips cannot be modified. Erasable programmable read-only memory (EPROM) and electrically erasable read-only memory (EEPROM) chips can be modifiable.
Computer storage devices are divided into internal memory and external memory:
Internal memory is divided into RAM and ROM, of which RAM is also called random access memory, and the contents of the computer disappear when the computer is closed, that is, we often say that the computer is \"memory\".
ROM is also called read-only memory, which stores basic factory data, can not be changed, and the content will not disappear when the computer is shut down.
External memory is divided into many
For example, hard disks, optical disks, floppy disks, U disks, these are external storage devices, that is, external memory