| 摘要 |
The system consists of mobile communications modules, such as GSM-, GPRS-, or CDMA modules, and a PC. The PC includes a circuit board, on which a central processing unit and memory components are housed, a diskette- and a hard disk drive, and interface cards which can provide additional functions, such as internet, E-mail. The PC further includes a SIM card of the mobile communications service provider, which serves for an identification, call provision, and registration, a radio transmission/reception module included in the GSM module, an input instrument, such as a keyboard and mouse, and three power supply parts.
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