What should I pay attention to when buying a memory card, what are the tips for buying a memory card

Buy a memory card regardless of whether it's real or fake. Put it on your phone and try it to see how the transfer speed of the card is, the speed of the fake card is slow, and the speed of the real card is fast. The cards given by mobile phones are generally very fast, and if you compare the two, you will know what card to buy.

Pay attention to whether it is **.

Nowadays, there are many counterfeits, and since memory cards are not expensive, you should choose one with guaranteed quality.

Kingstone and the like have the most fakes because of the high roll call rate.

Before buying, it is best to take a look at the latest packaging anti-counterfeiting of the selected brand.

There are also 800** fakes now, and it is best to choose a specialized merchant to buy.

One: what type of card you want to buy;

Three: Kingston, Sandisk and several other brands are OK, mainly go to a reputable one to buy it, to prevent the purchase of fakes.

Four: If you can, see how big the memory card is on the spot;

Five: As mentioned upstairs, the card reader should be bought, and the card can be given to you by the store.

Mobile phone models are generally divided into large and small cards, and you must buy a card reader!

Use old goods as new goods.

It's best to look it up online when you buy it**.

The market price of a memory module of memory 512 is about 90...

But this old renovation is actually nothing.。。

1. The first thing to consider is the capacity of the memory card.

Choose the size of the memory card according to your own needs, too large will cause waste, too small will not be enough, pay attention to the need to buy a memory card that is slightly larger than the size you expect to need, if you need about 25G memory, you can consider buying a 32G capacity.

In addition, it is also necessary to consider the subsequent growth, for example, mobile phones need to be used for about 3 years, and the current 25G is enough, in order to meet the time of about 3 years, it is recommended to buy more than 64G.

2. Select the memory card type.

At present, the more commonly used memory cards can be divided into SD cards, TF cards, etc., TF is a small card, which is generally used on mobile phones, and SD is a large card, which is generally used in cameras, dash cams and other equipment.

When purchasing, pay attention to check the relevant instructions of the applicable host of the memory card, such as: applicable host: mobile phone; Camera; Air Knowledge dash cam; Flat; surveillance cameras; Speakers; point reader; early education machines; Digital photo frames.

3. Performance parameter consideration.

First of all, you need to consider the read speed, such as the read speed is 80MB seconds, the write speed is 10MB seconds, and you can buy it according to your needs.

Then consider the speed parameters, generally divided into class4 to class10, this level represents the read and write speed, it is obvious that the higher the level, the faster the speed, class4 represents the read speed per second is not less than 4m, and so on, the higher the speed requirements, the higher the level of buying.

If it's just**some**and usually take a few photos**, then the level of class4 is enough, if it is placed in the memory of the SLR camera,**you need to choose a high-level memory if you need continuous shooting。 Note that some instructions use the USH level, which is a new standard. At present, USH3 is the fastest, but ** is also very high.

The specific transfer speed can be prepared to query, which is not slower than the general mechanical hard disk.

4. Safety considerations.

Consider whether it is waterproof, resistant to extreme temperatures, and dustproof. In addition to the three proofs, there are also manufacturers that have produced shockproof, anti-magnetic, X-ray and other functions, such as fighting to eliminate the fruit of the industry you are engaged in and related to the outdoors, for the sake of data protection, this kind of card is the best choice.

The new memory card should first be formatted when you use it, if you use it for a mobile phone, it is best to format it with a mobile phone, so that the mobile phone is easy to recognize, or you can format it with a computer, just choose the FAT32 format.

1.Insert it directly into the device you want to use the memory card (phone, tablet, camera, etc.);

2.Insert your memory card into the card reader, then plug the card reader into the computer, and when the removable disk has appeared on the computer, you can copy or pull the things you want to put into the memory card directly;

3.If your memory card is intended for use on a mobile phone or tablet, then you can also install the memory card on the world's first mobile phone or tablet, and then use a data cable to link the computer to the device, and then you can use it (but this usually requires the corresponding drivers or software to be installed on the computer).

The mobile phone memory card cannot be used, and there are generally the following reasons:

1. If the gold finger contact is not good, try to reinstall the memory card;

2. The format of the memory card is incorrect, try to format the memory card;

3. The memory card is not compatible with the mobile phone, change to a memory card that is compatible with the mobile phone;

4. If the memory card is broken or the mobile phone card slot ring is caused, replace the memory card or repair the mobile phone.

When you buy a new tablet, the first thing that comes to mind is how to properly use the tablet memory card. After all, the memory card of the tablet and the SD card of the mobile phone are almost the same, but the SD card tablet is generally not used, you can ask customer service when you buy a computer! As you all know, there are many types of tablets, and different tablets have different ways to use them.

The following Fuji Lai tablet will take you to learn more about it.

Browse the files on the memory card: Run the File Browse program, display all the files in the root directory, and select "SD."

card" to view the contents of the card.

Pull out the memory card: Close all files opened from the card; Go to the menu key Settings SD Card & Device Storage, click to remove SD card, and the system will prompt "SD card has been safely removed"; Gently press the card, and the card will pop out and take it out; In the upper left corner of the screen, you will be prompted to say "SD card removed".

So what are the issues to pay attention to in the process of inserting and unplugging the memory card? Notes:

The position of the card insertion should be correct, otherwise the card will be damaged;

Do not forcibly pull out the memory card without "removing the SD card", otherwise the card may be damaged;

If the memory card is write-protected, it will not be able to format and write data, please remove the write-protection before performing such operations;

It is recommended to use memory cards of major brands to avoid card incompatibility.

The device has three spaces to store the dry: the device's internal storage, a USB flash drive, and a memory card. The folder displayed in the device's internal storage is named "localdisk"; The folder displayed on the memory card is named "sdcard"; The folder displayed by the external USB flash drive is named "udisk".

The user's free space in the localdisk is about 1GB (byte), and the USB flash drive and memory card are subject to their specific capacity, and the maximum memory card is 32GB (byte). (The operating system and software will occupy a 1GB hidden memory, so for security purposes, you can't access this partition without a file browser!) ）

Last but not least, if you are a fan of playing tablets, we recommend that you buy a memory card when buying a tablet in order to use some features to maximize the effect.

Remember.

It is the bridge between the external memory and the CPU, and all the programs in the computer are running in the memory.

The strength of memory performance affects the overall performance of the computer.

Memory, also known as internal memory and main memory, is used to temporarily store computing data in the CPU and exchange data with external memory such as hard disks.

As soon as the computer is running, the operating system will transfer the data that needs to be computed from the memory to the CPU for processing. When the computation is complete, the CPU sends the result out.

The operation of memory also determines how fast or slow the computer as a whole runs.

A memory module consists of a memory chip, a circuit board, a gold finger, and other parts. [1]

Chinese name memory.

The foreign name is memory

Alias internal memory.

The computer that owns it.

Interface type. dip、simm、dimm

Quick navigation. Development of classifications, interface types, technical indicators, selection methods, fault repair, common misconceptions.

Overview: A very important part of a computer's structure is memory. It is the part that is used to store programs and data.

MemoryFor computers, with memory, there is a memory function, in order to ensure normal operation.

There are many types of memory. According to its use, it can be divided into main memory and auxiliary memory, and the main memory is also called internal memory (referred to as memory, and Hong Kong and Taiwan call it memory). [2]

Memory is also known as main memory. It is a storage space that can be directly addressed by the CPU and is made of semiconductor devices. It is characterized by fast access rates.

Memory is the main component in a computer, and it is relative to external memory.

Programs we usually use, such as: Windows operating system, typing software, game software, etc. It is usually installed on external memory such as hard disks, but only this cannot use its functions, and they must be transferred to the memory to run in order to really use their functions.

We usually type a text or play a game, but we actually do it in memory. For example, in a study room, the shelves and bookcases where books are stored are equivalent to the external memory of the computer, and the desk where we work is equivalent to the memory.

Usually, we store a large amount of data that we want to save forever in external memory, and put some temporary or small amounts of data and programs in memory. Of course, the quality of memory will directly affect the speed of your computer. [2]

Memory is where programs and data are stored temporarily. When we use WPS for documents, when you type a character on the keyboard, it's stored in memory. When you choose to save, the data in memory will be stored on a hard (magnetic) disk.