Does internal memory refer to a memory module?

The internal memory of a microcomputer is made up of semiconductor devices. In terms of function, there is random access memory (RAM), also known as read-write memory; Read only memory (ROM).

1.Random Access Memory RAM has the following characteristics: it can be read or written.

The original stored content is not damaged when it is read, and the original stored content is modified only when it is written. When the power is off, the stored content disappears immediately, i.e., it is volatile. RAM can be divided into two categories: dynamic RAM and static RAM.

DRAM is characterized by high integration and is mainly used for large-capacity internal memory; SRAM is characterized by high access speed and is mainly used in high-speed buffer memory.

2 Read Only MemoryROM is read-only memory. As the name suggests, it is characterized by the fact that only the original content can be read out, and no new content can be written by the user. The original stored content is written by the manufacturer in one go using mask technology and is permanently preserved.

It is generally used to store dedicated fixed programs and data. It will not be lost due to power failure.

It's not just memory.

It can be understood this way. Most of the memory is in memory modules.

Categories: Computer, Networking, >> Hardware.

Analysis: Memory is where programs and data are stored, for example, when we use WPS to process documents, when you type characters on the keyboard, it is stored in memory, and when you choose to save, the data in memory will be stored in the hard (magnetic) disk.

A memory module is the hardware of the memory.

There are four performance indicators to evaluate memory modules:

1) Storage capacity: that is, the amount of binary information that can be contained in a memory module, such as the storage capacity of the commonly used 168-line memory module is generally 32 megabytes, 64 megabytes and 128 megabytes.

2) Access speed: The minimum time required between two independent access operations, also known as the memory cycle, the access cycle of semiconductor memory is generally 60 nanoseconds to 100 nanoseconds.

3) Reliability of memory: The reliability of memory is measured by the mean time between failures, which can be understood as the average time interval between failures.

4) Performance ratio: Performance mainly includes memory capacity, storage cycle and reliability, performance ratio is a comprehensive index, for different memory has different requirements.

A memory module is a part of a computer that can be addressed by the CPU and can be read and written. Memory modules used to be an extension of the main memory in the history of personal computers. With the continuous update of computer software and hardware technology, memory modules have become the whole of read and write memory.

When we talk about the size of a computer's memory (RAM), we refer to the total capacity of the memory module.

The data written to RAM (i.e., read-write memory, i.e., memory modules) will disappear completely after the power is off, and the earliest program data that the CPU reads and executes when the computer is turned on comes from ROM (read-only memory). Memory is the basic component of computers (including microcontrollers), and memory has been available since the day computers were available. External memory belongs to computer peripherals, and hard disk is the external memory developed after the stage of tape and floppy disk.

Memory is an essential part of a computer, and the CPU can address it via a data bus. Historically, computer motherboards had main memory, and memory modules were extensions of the main memory. Later computers will not have main memory on the motherboard, and the CPU will rely entirely on memory modules.

All content on external memory must pass through memory in order to function.

The difference between internal memory and external memory (memory) lies in the differences in storage time, capacity, duration, and permissions, and the detailed comparison is as follows:

1. Storage time: memory has the advantage of time and speed; Slow storage time of external memory;

2. Storage capacity: Gaoxiao memory capacity is small, the general memory is 4G 8G, but the external memory capacity is large, and it can be expanded through external memory;

3. Storage duration: The memory is not retained after power failure, and the external memory can be retained for a long time.

4. Access permissions: The CPU can only directly access the memory. External storage has to go to memory before the CPU can handle it.

Encyclopedia - Memory.