Those silly English terms in the mobile phone configuration list | Love playing with computers - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

Some pairs Intelligent mobile phone Users who don't know much about mobile phones either consult their friends who are familiar with them or inquire about the parameter configuration of mobile phone models on the Internet before buying a mobile phone. However, many netizens said that it was OK not to check the mobile phone configuration online. It was simply a matter of Mobile phone appearance I bought my mobile phone. But at first sight, I was even more confused. More problems appeared, such as GSM, WCDMA, CPU, GPU, RAM, and ROM. These English letters don't look very different, but it's really difficult to distinguish them without understanding their meanings. The editor of this article will Mobile phone configuration The simple but similar English in the table will be used for simple science popularization.

GSM and WCDMA

GSM： Global System of Mobile Communication. The biggest difference between GSM and its previous standards is that its signaling and voice channels are digital, so GSM is regarded as the second generation (2G) mobile phone system. It is commonly known as 2G.

WCDMA： In fact, it is Unicom 3G, the English abbreviation for Wideband Code Division Multiple Access, and a third-generation wireless communication technology. W-CDMAIDEBAND CDMA is a third-generation mobile communication system specifically formulated by 3GPP, based on the GSM MAP core network and the UTRAN (UMTS terrestrial wireless access network) as the wireless interface. At present, this 3G communication standard adopted by China Unicom is one of the four existing 3G standards.

The configuration of smart phones we usually see supports both GSM and WCDMA network modes, which means that 2GSIM card and Unicom's 3GSM SIM card can be used by this phone.

CPU and GPU

CPU： In daily life, the CPU of mobile phones is one of the capabilities of mobile phones ignored by shoppers. In fact, the most important thing about a smart phone with excellent performance must be its "core", that is, the CPU. Like the CPU of a computer, it is the control center system of the whole mobile phone and the control center of the logic part. The microprocessor achieves the control purpose by running the software in the memory and calling the database in the memory.

GPU： The full English name is Graphic Processing Unit, which is translated into "Graphic Processor" in Chinese. In fact, previous smart phones did not have a display core. All software and games were processed by the CPU and presented on the screen. But the graphics processing capacity of CPU is very low. However, with the rapid development of smart phones in recent years, the introduction of 3D acceleration chips has injected strong vitality into the entertainment of smart phones. Users can run various 3D games and 3D applications smoothly. This 3D acceleration chip has already evolved into a GPU (Graphic Processing Unit) in the true sense. It is not only responsible for necessary 3D processing, but also manages all graphics display functions, and also provides auxiliary processing for video playback, video recording and photography. The 3D performance of the system has been greatly improved. Therefore, the birth of mobile phone GPU is a great revolution in the mobile market.

GPU， It is a highly integrated chip, which contains all the components necessary for graphics processing. Data exchange between GPU and CPU is carried out through RAM memory. On the mobile phone motherboard, the GPU chip is usually next to the CPU chip. The difference between the two is only one letter. C controls the performance of the entire mobile phone data processing, and G controls the performance of the entire mobile phone image display processing.

RAM and ROM

RAM： Random access memory. The memory in which the contents of the storage unit can be taken out or stored as needed, and the speed of access is independent of the location of the storage unit. This kind of memory will lose its storage contents when power is off, so it is mainly used to store programs used for a short time.

ROM： The abbreviation of Read Only Memory is a solid-state semiconductor memory that can only read the data stored in advance. Its characteristic is that once the data is stored, it can no longer be changed or deleted. The data stored in ROM is stable and will not change after power failure; Its structure is simple and easy to read, so it is often used to store various fixed programs and data.

RAM is static volatile memory; ROM is non-volatile memory. RAM is equivalent to running memory only. High RAM will make multitasking more smooth, and you can still maintain smooth operation after using a variety of software. The higher the ROM, the more files can be stored in the phone. If a smartphone is viewed as a computer, RAM is equivalent to computer memory; The ROM is the D disk, E disk or other disk that can store data.

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