What are the two types of memory?

Computer memory is divided into two types: ROM (read-only memory) and RAM (random access memory). ROM is generally used to store basic computer programs and data, such as BIOS ROM. RAM means that data can be read from and written to; when the machine is powered off, the data stored in it will be lost.

#Memory is one of the important components in the computer. It is the bridge between external memory and CPU. All programs in the computer run in memory.

Therefore, the performance of memory has a great impact on the computer. Memory is also called internal memory and main memory. Its function is to temporarily store operation data in the CPU and exchange data with external memories such as hard disks.

As long as the computer is running, the operating system will transfer the data that needs to be calculated from the memory to the CPU for calculation. When the operation is completed, the CPU transmits the results, and the operation of the memory also determines the stable operation of the computer.

The memory stick is composed of memory chips, circuit boards, gold fingers and other parts.

Classification of memory

Computer memory is divided into two types: ROM and RAM.

Read Only Memory (ROM)

ROM stands for Read Only Memory. When manufacturing ROM, The information (data or program) is stored and stored permanently. This information can only be read and generally cannot be written. Even if the machine is powered off, the data will not be lost.

ROM is generally used to store basic computer programs and data, such as BIOS ROM. Its physical appearance is generally a dual in-line plug-in (DIP) integrated block.

The most popular read-only memory now is Flash Memory, which is an upgrade of EEPROM (Electrically Erasable Programmable Read-Only Memory) and can be erased and written repeatedly through electrical principles. Most BIOS programs are now stored in FlashROM chips. USB flash drives and solid-state drives (SSD) are also made using the principle of flash memory.

Random Access Memory (RAM)

Random Access Memory (Random Access Memory) means that data can be read from or written to. When the machine is powered off, the data stored in it is lost.

The memory module we usually buy or upgrade is used as computer memory. The memory module (SIMM) is a small circuit board that collects RAM integrated blocks. It is inserted into the memory slot of the computer. to reduce the space occupied by the RAM integrated block. Common memory modules currently on the market include 1G/module, 2G/module, 4G/module, etc.

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