Popular science post: How to use RAM, ROM and memory card more efficiently?

What does # Huawei 6GB+ 128GB # memory configuration mean, that is, Huawei mobile phone 6G RAM+ 128 ROM. From the perspective of Huawei mobile phones, it is basically equivalent to the configuration level of Huawei P20 released on 20 18.

First, when buying a mobile phone, the memory usually depends on three parts: the concept of mobile phone RAM, ROM and memory card.

1, RAM, the abbreviation of random access memory, namely random access memory, can read and write data randomly when working, and the data will be cleared after power failure. It can be understood as the memory of a computer.

With the progress of the times, the basic configuration of mobile phone RAM is 4G. If you must find it in the Huawei department, you can look at the glory.

The capacity of RAM is divided into nominal capacity (the capacity of mobile phone parameters), actual capacity (smaller than the nominal capacity, because a small number of low-end mobile phones may be occupied by GPU except for the loss of algorithms and particles) and available capacity (easier and smaller than the actual capacity due to the occupation of system and background programs).

2.ROM: abbreviation ROM: read-only memory, commonly known as storage space.

Different from the traditional rom, one part is often used for the system (that is, the part we usually brush in), and the other part is used for the installation of system software. For example, some mobile phones will set aside 2G for installing software; Finally, the space for users to store data. This is why sometimes users can only use 1G for machines marked with 4G ROM parameters by manufacturers.

In the past, the mobile phone could have 8GB, 16GB, which was very good. Nowadays, there are more and more functions of mobile phones, more and more software applications, and users' demand for storage capacity is increasing. Mobile rom basically starts at 64G, and 128G and 256G are also common. It is also divided into three types: nominal capacity, actual capacity and available capacity.

In a sense, it can be understood as the hard disk of a computer.

3. Memory card: used to store user data.

Now many mobile phones will have tf card slots, which is convenient for users to expand their storage capacity. The nominal capacity of the memory card is close to the actual capacity.

Some mobile phones have small Roms, so TF cards can be used as Roms, that is, software and game data packets can be put into memory cards for use; However, some users still prompt that there is not enough space after inserting the large-capacity memory card, because some software packages can only be placed in ROM under normal circumstances, but not in tf cards.

Second, how to make better use of memory.

1 and memory

For Android phones, the most important method is to control the number of background programs. You can manually "close the process" to prevent some programs from opening automatically in the background, which requires some third-party software to control the startup and self-startup items. Usually this kind of software needs to get root permission.

2、ROM

Storing ROM has something to do with brushing machines and using habits. Some people will open up space by deleting some programs that come with the system. Of course, you also need to get root privileges. For users, regular cleaning (such as downloaded installation packages) and deleting (uncommon software) are also good ways to improve the speed of mobile phones.

3. Storage Plug-ins

Buying a big and easy TF is the easiest way. Another good way to use tf card is to transfer the software and game packages to tf card, which is the "TF card mount" function (many third-party systems have it). This can partially solve the problem that some mobile phone Roms are easy to get smaller, and improve the running speed of mobile phones.

Finally, when it comes to the development law of the computer industry, we usually mention Moore's Law and Andy Beer's Law.

Moore's Law: "Every 18 months, the performance of IT products will double, or the price of IT products with the same performance will drop by half." In other words, the current research and development must be aimed at the market development after many years, such as Intel's research and development of chips.

Andy-Bill's Law: "Andy provided it and Bill took it." Andy refers to Andy Grove, former CEO of Intel, and Bill refers to Bill Gates, former CEO of Microsoft. The improved performance of hardware is quickly consumed by software. "

Moore's Law and Andy Beer's Law probably also apply to the mobile phone industry.