摘要
Android操作系统是基于Linux平台而开发。该操作系统主要分为以下三部分:最下层是以C语言开发的Linux内核,提供基本功能;中间层是函数库Library和虚拟机Virtual Machine,由C++开发;各种应用软件位于最上层,包括传输程序,浏览器程序等,部分程序以Java编写。USB/串口转换是实现USB与RS-232/RS-485/RS-422串口设备相互通讯的一种协议转换(USB协议-串行通信协议)。
The Android operating system is based on the Linux platform and the development of.The operating system is divided into the following three parts：the lowest is developed by C language of the Linux kernel,provides the basic functions;the middle layer is a function library of Library and virtual machine Virtual Machine,developed by C＋＋;various kinds of applica- tion software in the upper layer,including the transfer procedures,the browser program,part of the program written in Java. USB converter is a kind of communication protocol between serial device USB and RS-232/RS-485/RS-422 conversion, which is USB protocol and serial communication protocol.
出处
《工业控制计算机》
2014年第1期83-84,共2页
Industrial Control Computer
