equipment设备
topology拓扑
terminal终端
star network星型网络
peripheral device外围设备
host computer主机
send message传输消息
time-sharing system分时系统
bus network总线网络
bus总线
electronic mail电子邮件
ring network环形网络
tree network树形网络
database数据库
communicate 通信
network medium网络媒介
network protocol 网络协议
Yhardware resource 硬件资源
information resoure信息资源
wireless computer networking 无线计算机网络
nadio wave无线电波
microwave微波
communication channel 通信通道
wired networking 有线网络
network devicc 网络设备
wireless device 无线设备
wireless product 无线产品
wireless local area networking WLAN,无线局城网
The configuration, or the physical layout, of the equipment in a communication network is called topology
拓扑，指通信网中设备的配置或物理布局
A star network contains a central unit, a number of personal computers, terminals or peripheral 星型网络由一台中央处理器、多台个人计算机、终端或外国设备构成
In bus network, each device in the networkhandles its own communications control. There is no host computer.
在总线网络中，每一个设备处理自己的通信管理，并没有主机
A ring network doesnt use a central hoscomputer. Each device is connected to two othedevices, forming a ring.
环形网络也没用主机，每个机器都和其他两台机器互相链接，行成一个环形
LANS are networks usuallyconfined to a geographicarea, such as a singlebuilding or a college campus.
局域网通常是指某一地域范围内的一个网络 如一幢建筑物内或一个大学校园内
Wireless networks utilize radio waves and/ormicrowaves to maintain communication channelsbetween computers. Wireless networking is a more modemaltemative to wired networking that relies on copperandor fiber optic cabling between network devices.
无线网络利用无线电波和(或)微波保持计算机之间的通信通道。无线网络比依赖于铜线和(或)光缆来连接网络设备的有线网络更现代些。