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手机是一种特殊的电子产品,其特点是采用微电子器件和表面贴装工艺,集成度高,体积小,CPU控制,软件管理。软件是手机的智能部分,是厂商事先写到手机存储器中的,通过读取软件来控制整机工作。如:手机的收、发信息控制、PLL搜索信道、解读基站的信令、操作指令的键入及译码、电源的启动等功能都有赖于软件控制。
Mobile phone is a kind of special electronic products, which is characterized by microelectronic devices and surface mount technology, high integration, small size, CPU control, software management. Software is a smart part of the phone is written in the phone memory in advance by the manufacturer, by reading the software to control the machine work. Such as: mobile phone receiver, send information control, PLL search channel, read the base station signaling, operating instructions, typing and decoding, power startup and other functions are dependent on the software control.