The Symbian system is mainly composed of the following hardware parts: central processing unit, ROM, RAM, IO devices and power supply. Each hardware component performs its own duties to ensure the operation of the system. The Symbian system generally uses a 32-bit processor, and the system operation and data calculation are all completed by the processor. The ROM solidifies the Symbian system and the various functions that come with the device. RAM is used to store the currently active programs and data required for the system operation, as well as various temporary exchange files, or as a WAP cache, etc., and is also responsible for storing some user data. IO devices include general control devices, such as keyboards, touch screens, extended memory cards, Bluetooth interfaces, etc. The power supply is a battery or an external power supply. Taking the Series 60 mobile phone as an example, it generally uses the ARM processor of Texas Instruments. After inserting the memory card, the system generally has 4 logical storage drives: C drive - the user storage drive that comes with the mobile phone, that is, Flash Memory. The advantage of this chip is that it does not require electricity to maintain data and can be modified at any time. The D drive is a virtual cache drive with idle running memory. The E drive is the MMC card inserted by the user. The Z drive solidifies the system, that is, the ROM we mentioned earlier.
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