What is a flash memory card? What s the difference with memory?

The memory comes with the phone....The memory is large, and the running speed is ......A memory card is an extended ...... outside of the phoneA large amount of memory will affect the running speed.

Flash memory only says that the storage speed of memory cards is a little better, and generally Kingston's memory cards are very fast

Flash memory generally refers to memory cards, ROM!Whereas, memory refers to the body memory, RAM

The difference is that the memory is pure data level signal storage, which is specially used for CPU operation and addressing, and there is no physical writing and no endurance limit. Flash memory is the storage of data, which can be stored in a power failure, and there is a physical write, and there is a limit on endurance.

Flash memory is a type of non-volatile memory, which means that data will not be lost when power is off. Because flash memory does not rewrite data in bytes like RAM (Random Access Memory), it cannot replace RAM.

Application prospects. "USB disk" is the most obvious portrayal of flash memory into daily life, in fact, long before the USB flash drive, flash memory has appeared in many electronic products. The traditional way to store data is to use RAM volatile storage, and the data will be lost when the battery is dead. Flash-based products overcome this problem and make data storage more reliable.

In addition to flash drives, flash memory is also used in electronic products such as BIOS, PDA, digital cameras, voice recorders, mobile phones, digital TVs, and game consoles in computers.

Flash memory can be understood as a USB flash drive, hard disk and other devices that can store data.

Memory is used to communicate with the CPU, and the programs and data you run daily are run on the memory.

The memory does not have the function of long-term storage, and the data on it will be erased after the power is off, and the data can still be retained after the flash memory is powered off.

Metaphor: The monks in the temple have to water the flowers, and every day they will carry water from the river to the temple and store it in the water tank, and scoop the water with a scoop to water the flowers.

The river is the Internet.

The water tank is flash memory, also called hard disk, also called storage.

The water scoop is memory, also called running memory.

The water scoop is larger, and the work of watering the flowers is handy.

Therefore, when buying a mobile phone, I generally buy a larger water tank and store more things. Buy a bigger water scoop and water the flowers faster.

Flash memory is the storage of data. Your software files, ** files, etc. are stored here.

Memory is the CPU runtime that transfers data from flash memory to memory, which acts as a connection cache.

Flash memory is the equivalent of a hard drive.

Like a USB flash drive TF card.

and so on, all using flash memory chips.

Data can be stored.

Memory is much more efficient than flash.

But the data disappears when the power goes out.

It is generally used on a PC.

Flash memory refers to the speed at which data is stored, and memory refers to the capacity in the machine.

The differences between flash and memory are as follows:

1. The main body is different.

Memory: It is one of the important components of a computer, it is the bridge between the external memory and the CPU.

Flash memory: An electronic form of purgeable programmatic read-only memory that allows memory to be erased or written multiple times during operation.

2. The characteristics are different.

Memory: The operation of memory also determines the stable operation of the computer, and the memory module is composed of memory chips, circuit boards, gold fingers and other parts.

Flash memory: It is a special kind of eprom written in macro blocks, and the flash memory will erase the data on the entire chip after a single erase.

3. The role is different.

Memory: It is used to temporarily store the computing data in the CPU, as well as the data exchanged with external memory such as hard-tape letter disks.

Flash memory: It is a non-volatile memory, that is, data will not be lost when power is off, because flash memory does not rewrite data in bytes like RAM (random access memory), so it cannot replace RAM.

Computer Memory Type:

1. RAM: Random Access Memory (RAM), also known as "RAM", is the internal memory that directly exchanges data with the CPU, also known as the main memory (memory), which can be read and written at any time, and is very fast, usually used as a temporary data storage medium for the operating system or other running programs.

2. ROM: read-only memory (read-only memory) sock head is a kind of memory that can only read data, in the manufacturing process, the data is burned in the line with a special mask (mask), and the content of the data can not be changed after writing, so it is sometimes called "mask read-only memory" (mask ROM), the manufacturing cost of this memory is low, and it is often used in the computer to boot up.

3. Memory: memory is a memory device used to save information in modern information technology, in the digital system, as long as the binary data can be stored in memory, there is a stupid round of memory, the computer has a memory function, in order to ensure normal operation.

The memory of the mobile phone refers to the memory of the mobile phone system, and the memory of the mobile phone is divided into two types: running memory and non-running memory. In other words, taking the computer as an example, the running memory of the mobile phone memory is equivalent to the memory of the computer, which means that the larger the running memory of the mobile phone, the smoother our mobile phone will be when running programs, and even the more programs can run in the background.

The non-running memory of the mobile phone, that is, the memory that is often said, is equivalent to the hard disk of the computer, which can be used for the storage of various software or files.

Memory refers to the memory of the mobile phone system, and the mobile phone memory is divided into running memory and non-running memory, in other words, taking the computer as an example, the running memory of the mobile phone memory is equivalent to the memory of the computer, which also means that the larger the running memory of the mobile phone memory, the smoother the mobile phone will be when running the program.

It can even run multiple programs in the background, and the non-running memory of the mobile phone, which is often referred to as memory, is equivalent to the hard disk of the computer, which can be used for the storage of various software or files.

Flash memory is a new type of memory, that is to say, flash memory is a memory format, and the types of flash memory are also divided into many kinds, which can be mainly divided into some types such as and, nand, nor, and dinor in terms of structure.

Among them, NAND and NOR are by far the most commonly used line fingers in mobile phones, flash memory as a kind of memory, has the characteristics of memory, flash memory not only has the advantage of being able to erase and write, can be programmed, but also has the advantage that the written data will not be lost even after the power is off.

Memory, as the name suggests, is something used to store data, but it is divided into two categories according to its use, that is, RAM and ROM, RAM is running memory, often called memory; ROM is storage, also known as flash memory.

Running memoryRAM, also known as RAM, is the internal memory that directly exchanges data with the CPU, also known as main memory (memory). It can be read and written at any time, and it is fast, often as a temporary data storage medium for operating systems or other running programs. This kind of memory will lose its stored content when the power is off, so it is the main onePrograms used to store short-term use.

(equivalent to a computer's memory module).

Flash romsFlash memory, as a type of memory, has the characteristics of memory, and flash memory not only has the advantage of being able to erase and write and program, but also has the advantage that the written data will not be lost even after the power is off.

So what does flash do for it?

Here are a few common examples: for example, the speed of software installation, the speed of loading games, and the speed of reading files such as photos are all related to flash memory.

Let me first give a definition of memory: memory is the memory that communicates directly with the CPU, all programs run in memory, although there is also a cache in the CPU, but the first floor said, the cache is actually a very fast memory, which stores the most commonly used instructions of the CPU. According to the first floor, memory is also a concept, so memory has a variety of:

SDRAM, DDRRAM, DDR2RAM, and early EDORAM, they can keep the data state in the storage when they are powered on, and all of them are lost when the power is off, but the speed is very fast. It's all memory.

In this way, flash memory is also a concept, because there are all kinds of flash memory, there are four-in-one, and seven-in-one card readers on the market, which shows that the family of flash memory is also very large. But as we all know, memory can hold things, take them and run around.

Those who have studied the basic principles of computers know that computer hardware is mainly composed of five main components: CPU, main memory (memory), auxiliary memory (external memory), input and output devices, and buses. Then the main memory is also known as memory, and the auxiliary memory is a floppy disk (although it is not very useful now) hard disk, optical disc, and now all kinds of USB disks, ***, memorystick, SD card, MMC card, ......You can take a seat on the type of flash memory you are talking about.

To sum up, in a nutshell: memory is high-speed memory that exchanges data directly with the CPU for calculations, and is generally volatile (data cannot be saved after a power failure). Flash memory can be considered a type of external memory.

Some machines, some PDAs, Wenqu Xing and the like, he only has memory, no external memory, and the memory is also made of flash memory, because they themselves run very slowly, and now the flash memory is also relatively fast, plus the content is still stored in the memory after shutdown, and the boot is naturally very fast (boot up does not need to read the hard disk boot and the like), so their memory is made of flash memory, and it runs like no external memory, so I say that flash memory can be used as memory, or as external memory. But memory can't be a type of flash memory.

1. Flash memory is a long-lived non-volatile memory (which can still maintain the stored data information in the event of a power failure), and data deletion is not in a single byte but in a fixed block, and the block size is generally 256KB to 20MB. Flash memory is a variant of electronically erasable read-only memory (EEPROM), which differs from flash memory in that it can delete and rewrite at the byte level instead of the entire chip, so that flash memory can be updated faster than EEPROM. Because it can still save data even when the power is off, flash memory is often used to save setting information, such as saving data in a computer's BIOS (Basic Input and Output Program), PDA (Personal Digital Assistant), digital camera, etc.

Flash memory, on the other hand, does not rewrite data in bytes like RAM (Random Access Memory), so it cannot replace RAM.

2. Memory is one of the important components of a computer, and it is a bridge to communicate with the CPU. The running of all programs in the computer takes place in memory, so the performance of the memory has a very large impact on the computer. Memory, also known as internal memory, is used to temporarily store computing data in the CPU and exchange data with external memory such as hard disks.

As long as the computer is running, the CPU will transfer the data that needs to be calculated to the memory for calculation, and when the operation is completed, the CPU will send the result out, and the operation of the memory also determines the stable operation of the computer. Memory is made up of parts such as memory chips, circuit boards, gold fingers, etc. There are many types of memory, which can be divided into main memory and auxiliary memory according to their use, and the main memory is also known as internal memory (referred to as memory, which is called memory in Hong Kong and Taiwan).

Flash memory (ROM) is a type of non-volatile memory. Although flash memory has a flash word in its name, it stores data for a long time.

It can be read and written at any time, and it is fast, usually storing temporary data for the operating system or other running programs.

This problem is a bit troublesome, most people mix flash memory and memory in mobile phones, in fact, two concepts, memory should be RAM, generally not too big 256M, 512M, 1G, 2G, flash memory refers to ROM, now using flash chips so it is called flash memory, and flash memory can be expanded with flash memory cards! But a lot of times people will call flash memory cards memory cards! Misunderstanding!

Memory is used by computers or mobile phones to temporarily store data, and it will disappear after power failure, flash memory refers to USB disks, TF, SD cards, etc., fast storage, long-term storage. Power outages don't go away.

Flash memory is a catch-all term!

Memory is just one type of flash memory! The characteristics of memory are that the data cannot be saved after the power is off, and the read and write speed is fast!

In addition, the U disk is also a kind of flash memory, and the data can be saved after the power is off, and the read and write speed is not as good as the memory!