2, memory (memory), mobile phone memory is divided into running memory and non-running memory. The running memory of mobile phone memory is equivalent to the memory of computer. The larger the running memory of the mobile phone, the smoother the mobile phone can run programs, and multiple programs can run in the background. The non-running memory of a mobile phone, also called memory, is equivalent to the hard disk of a computer and can store all kinds of software or files. The larger the memory, the more things we can store.
3. Input and output devices, including USB interface, earphone interface, camera and I/O channel.
4. The screen, the biggest part of the mobile phone. Mobile phone display screen is a display tool that displays some electronic files on the screen through a specific transmission device and then reflects them to human eyes.
5. Battery: Mobile phone battery is an energy storage tool for providing power for mobile phones, which consists of three parts: battery core, protection circuit and shell. Mobile phone batteries generally use lithium batteries and nickel-hydrogen batteries. MAh is the unit of battery capacity, and its Chinese name is MAh.
Basic requirements for extended data smart phones:
1, high-speed and high-precision chip processing. 3G mobile phones should not only support phone calls and text messages, but also handle audio, video and even multi-tasks, which requires the chip to have powerful functions, low power consumption and multimedia processing capabilities. Such a chip can make the mobile phone not often crash, not fever, and not make the system slow as a snail.
2. Large memory chip and storage expansion capability. If you want to realize a large number of application functions of 3G, there is no value without large storage. A complete GPS navigation map needs more than 1g storage space, and needs to store a large number of videos, audio and various applications. Therefore, it is necessary to ensure enough memory storage or extended storage to truly meet the application of 3G.
3. A large, standardized and touchable display screen. Only a large and standardized display screen can make users fully enjoy 3G applications. The resolution is generally not less than 320×240.
4. Support mobile TV with playback. If mobile TV completely adopts the on-demand mode of telecom network, the network will be hard to bear, and in order to ensure the network quality, operators will generally control the traffic of on-demand video. Therefore, broadcasting mobile TV is an important part of mobile entertainment.
5. The operating system must support the installation of new applications. Various new applications can be installed, so that users can install and customize their own applications on their mobile phones.
6, equipped with a large capacity battery, and support battery replacement. No matter what low-power technology 3G uses, power consumption is a big problem, and it must be equipped with a large-capacity battery. 1500mAh is standard equipment. With the popularity of 3G, the external mobile power supply is likely to become the standard configuration in the future.
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