手机可以被看作袖珍的计算机。它有CPU、存储器(flash、RAM)、输入输出设备(键盘、显示屏、USB和串口)。它还有一个更重要的I/O设备,那就是空中接口。手机通过空中接口协议(例如GSM、CDMA、PHS等)和基站通信,既可以传输语音、也可以传输数据。本资料共包括以下附件:

(Mobile phones can be regarded as pocket computers. It has CPU, memory (flash, RAM), input and output devices (keyboard, display screen, USB and serial port). It also has a more important I/O device, which is the air interface. Mobile phones communicate with base stations through air interface protocols (such as GSM, CDMA, PHS, etc.), which can transmit both voice and data. This document includes the following annexes:)

[下载]20335362955.rar

2022-11-13 20:33 上传

文件大小: 36 KB
下载次数: 0

手机可以被看作袖珍的计算机。它有CPU、存储器(flash、RAM)、输入输出设备(键盘、显示屏、USB和串口)。它还有一个更重要的I/O设备,那就是空中接口。手机通过空中接口协议(例如GSM、CDMA、PHS等)和基站通信,既可以传输语音、也可以传输数据。本资料共包括以下附件:

(Mobile phones can be regarded as pocket computers. It has CPU, memory (flash, RAM), input and output devices (keyboard, display screen, USB and serial port). It also has a more important I/O device, which is the air interface. Mobile phones communicate with base stations through air interface protocols (such as GSM, CDMA, PHS, etc.), which can transmit both voice and data. This document includes the following annexes:)

[下载]20335362955.rar

2022-11-13 20:33 上传

文件大小: 36 KB
下载次数: 0